the best tutorials on Photogrammetry you can find on yt, and the most entertaining by far. Brilliant. Please continue making this über quality content. Much appreciated. Thanks a lot.
Thank you! I hope you'll enjoy the future videos just as much. I also have some new scanning content coming to the "Classy Dog Studios" channel soon that might interest you, too. Next month I'll be putting up a video showing how to build a simple little rig for scanning trees and flat surfaces quickly.
James your photogrammetry tuts were getting better and better, and this one is really unholy majestic! so many useful bits, from polarizing filter to delighting, to drones, telephoto lenses, etc. By the way, have you tested the same industrial scene in Reality Capture?
Thank you, Gleb! Actually, I did buy a license of Reality Capture to try it out, but funny enough, I got a better result in the demo version than I did in the official version. I don't know why I couldn't replicate the quality in the licensed version; perhaps it's a change in the software between the two. I hope to learn a little more about RC in the future and figure out how to better control the settings. The UI is a bit daunting to me.
Want to notice that RC has monthly subscription on Steam. Also it can be a lot cheaper than on web site. For my country it's only 12$ per month. But for UK it's something aroung 30 euro. So check Steam first)
I know Im asking randomly but does any of you know a tool to get back into an Instagram account? I stupidly lost the password. I love any assistance you can offer me.
@Billy Ellis i really appreciate your reply. I got to the site thru google and im in the hacking process atm. I see it takes a while so I will get back to you later when my account password hopefully is recovered.
Thank you! I hope you'll enjoy the interior scanning video, there will be a lot of different tips in it that I don't see people talking about very often.
You know you're in for a good time if the introduction has a Macho Man Randy Savage and Ultimate Warrior reference 🤣👍🏻 Great video. Love the humor added. AESUB scanning spray and Iconasys computer-controlled turntables would work great for products or smaller things. That photogrammetry tank was one of the coolest things I've ever seen. You are awesome 👏🏻 Ryan - Iconasys
Thanks, Ryan! Those would be great things for me to include in some of the future installments I want to make for the series. Hopefully those will be fun to watch, too!
This was the best photoscan guide to man-made environments video I've ever seen. For me, I'd like to know how to take a bricks scan and make that into a tileable texture (diffuse + height map). This has been haunting me at night.
One way to handle it would be take your nearly flat geometry, bring it into your 3d program, then project that model onto a quad. From there you can use XNormal to project your high poly texture onto your flat model including whichever channels you wish (diffuse, normals, occlusion, etc.). If you then bring that into Photoshop, you can use bring the texture into groups, then use masking and offsetting to nondestructively make it tile. The main downside to this method is not being able to use tools like healing brush and content aware fill because you're working with groups of layers instead of layers themselves. It's also tedious to do more than a few groups of layers, because when you're ready to export there will be a lot of things that have to be turned off and on. Fortunately this can be resolved by turning the initial group into a smart object before editing. That way you can isolate a layer once and resave to get each kind of map.
Another way is to instance the high poly geometry in your 3d program, make a 3x3 grid of them based on the distance you want your final texture to be, then delete parts out that mess with the overlap. This is more or less how you set up tiled geometry in general. This method can be cumbersome to work with because of the large polycounts involved by duplicating the high poly 9 times. Once you have that, you can either set up a camera to have the exact right range for perfect tiling to generate your maps from, or you can again bring things into XNormal to project. The benefit of this approach is not having to go into photoshop.
Thank you, Olivier! I'm glad you enjoyed the video! I'm actually way better at shooting than I am at baking textures and all that stuff, but I think Smallpoly's explanation below is pretty good! If you have Substance Designer, you can actually user their alternate method of scanning, which should be suitable for creating tiling textures if you aren't trying to capture too big of an area. Here's a link to an article about it: www.allegorithmic.com/blog/your-smartphone-material-scanner
you know for anyone that wants to try some free software, before getting invested into photoscanning there is always also the option of using Colmap and Meshlab....
Thank you, I'm happy to hear you found it informative! And it looks like interior scanning will be the next video, a lot of people are asking for it. I have a lot of tips for that one!
Also interior scanning please. People seem to share their gear and how they generally use it but not their techniques a lot of the time. I don't blame them though.
ClassyDogFilms Thanks for the great vids! Also, I love your sense of humor, I heard "protection" then saw the image, was like "nah, I didn't just see that" then went back again and LMAO
when shooting head on you're actually just using the sun or your light source to cast shadows on your material in order for the detail to stand out - so in fact you're not shooting head on in relation to the light.
Thanks for subscribing, Paul! I rendered the brick wall in Blender, using an HDRI map from HDRI Haven (I think it's the "Goegap" one). I also used the viewport renderer for the first pass just showing the mesh, and Cycles for the fully rendered pass. Hopefully that helps explain it!
@@ClassyDogFilms NOPE! lol Make a video, please. I have seen that done once before from The Drone U guys on an old western street and then placed on a sky background. Mega cool!
Hi James, great video.Can I ask how you clean up the model?Say your point cloud and dense cloud have holes or blobs or worse a double layer of the same image sticking out/ over lapping.Thanks
Awsome tutorial !! can you tell me what software you would recommend for capturing 3d of heritage buildings(a lot of details) for a virtual city tour I'm trying to prepare ... also it has to be exportable to pdf or something easier to share to the public. so far I have only tried Agisoft photoscan..
Hi, Sara! Sorry for the delayed reply, I just saw your message. I would recommend trying out the new option of generating meshed from depth maps in Metashape (PhotoScan's new name). Basically it allows you to skip building the dense point cloud, and it could be quite helpful for retaining more smaller details. So essentially, you just align the photots and then generate the mesh (it should show the "from depth maps" option, that's what you want to use). As for how to share it, I would recommend something like Sketchfab, since you can also add points of interest to show off specific areas, which I imagine is useful for virtual tours. Maybe exporting as a PDF is possible too, but I have no idea, I never made one for anything besides text! haha. I hope that helps, let me know if you have any more questions!
also would like to know is there any methods how to scan roughness(gloss) data? I always making it from the albedo and height map in Substance Designer. But maybe there is some setups that allows you to scan this data too?
That's a good way to fake it! And about scanning roughness; it's something I want to learn how to do, but I've not spent much time on it yet. But if I do figure it out, I'll include information on how I did it in a future video!
Sorry for the delayed reply! You know, I've seen a fair number of people scanning underwater, and they say they don't have any issues with it (such as refraction). I've never used an underwater housing, so I don't know if there are any requirements for it there. But I think as long as your camera is fully immersed in the water, it should work okay. I think it's when you're shooting through a variety of mediums (such as air and glass and water) that problems with the changes in refraction start to come up. Also, it sounds obvious, but the clearer the water you're shooting in, the easier it will be! Murky water will greatly limit how far away you can be from the subject. I'd recommend a small test scan or two before you "dive" into any big projects, just to get your "feet wet".
@@ClassyDogFilms Thanks! I will do some tests, and if successful, i'll try in the nearby lake or sea. And/or if possible, as i haven't seen any videos on this, maybe you could do one? It would be very helpfull for us who wants to go "deeper" into photogrammetry. Thanks for the reply again!
That's a good suggestion! If I'm able to get my hands on an underwater rig, I'll be sure to include it in a future video. By the way, I've seen people posting underwater scans over on the 3D scanning groups on Facebook. It might be worth checking out!
I am interested in seeing a miniature scanned. By miniature, I mean what the film and TV industry call a scaled model. Usually painted and aged to look real. Like what a model train enthusiast might make for his\her train set. Plaster for the terrain and little trees made of plastic, rubble made of real pebbles etc. All to make a tabletop model look like a massive rocky cliff. These are typically used for matte paintings. Take for example a scaled down model of a rocky cliff. Because this subject is indoors and movable ( within reason) I would assume you could get unlimited photos at just about any angle. I'm interested to see how something that is made by hand like a plaster cliff that is also painted as faux rocks etc how it will translate in the scanning process. I work as a VFX artist. I have worked with miniatures shot in front of a green screen hundreds of time. But this Photo scan tech could change the way we integrate those scaled models or "Miniatures, and the way they are utilized in our workflow, or Pipeline as it is usually referred to. Great videos, very informative. Thank you.
I did something like that recently of a thrift store find, though it's not my best work. skfb.ly/6u77D There are also some much more talented people doing a game called "Trüberbrook" using photogrammetry shot miniatures as 3D background plates. Tech breakdown vid: th-cam.com/video/5rqZ1KTXOEQ/w-d-xo.html There's also a reddit post about it here with some more info: www.reddit.com/r/photogrammetry/comments/6kp6c1/video_game_using_photogrammetry_of_scale_models/
That's a great suggestion, Robert. I've thought about scanning miniatures in the past, but have never attempted it yet. Although I have been playing with the idea of a PhotoScan video focusing on how to scan very subjects. Scale models would certainly be a good fit for that subject, so hopefully that will be a subject I can make a video on! Thanks for the excellent suggestion, and I'm glad you enjoyed the video!
Your scan turned out pretty well, Smallpoly! I like it. And I thought of the same thing when Robert mentioned scanning miniatures. I don't know if it was the same team or not, but I saw a game being created that incorporated the same idea: building and scanning miniature sets instead of creating them entirely on the computer. A really novel and interesting concept!
You're right! I think you can still find it on Gumroad, but I know Philip has also uploaded some HDRIs to HDRI-Haven since this video was uploaded, so I'm assuming he's no longer focusing HDRVault.
Hello! Yes, I still intend to release it- but it will probably be at the end of this year. There's some scanning work I have to finish before I can put it up, and that's been eating up a lot of my time. But I hope it will be worth the wait. I appreciate your patience!
That's Great! I hope it turns out great. Also, note to any passer-by's who see this comment after the video comes up, would you mind telling me? I'll probably forget.
I scanned a whole 9 building blocks once and did it parts with rather good detail... on a laptop. The first step I used all of the photos to align the model right and then I did subsets of max photos number with my computer with just 16gb of RAM for the Dense cloud step. You should figure that technique out too and see if you can show how to use laptops to their fullest when photoscaning. So to recap: 1. Use all the photos for the aligment part. 2. Then divide the pics to subset for the dense cloud creation part. 3. Combine the scans in your 3D software of choice.
Thanks for keeping it classy James, great entertaining tutorial as always. I'm sure you're already aware of this but just as a heads up to those who aren't: some of the PhotoScan issues addressed in this video are overcome in the latest version of PhotoScan: - The thinner elements of your cement factory scan would likely have been reconstructed better using PhotoScan's new "visibility consistent mesh generation" and "volumetric masking" options (see PhotoScan blog on how to use them here: www.agisoft.com/index.php?id=48) - Delighting (at least for soft shadows) is now built in to PhotoScan (as you said in the video: expect more and more software to have this built in in the future) (see PhotoScan blog: www.agisoft.com/index.php?id=42)
Hi, one weird question! How did you get Google Earth online just orbit? It just keeps orbiting and I would love to get that! Awesome photoscan video. Maybe I'll post anything I do. Cool!
Thank you, Jeffrey! I don't know if it makes a difference, but I had loaded up Google Maps instead of Google Earth (I don't know if the buttons are the same between the two), and I noticed when I switched from 2D view to 3D view, it would begin the rotation. So I just loaded up the screen capture and switched from 2D to 3D view. I hope that helps!
Thank you, Anton! I hope to have the next one done later this year (also will have a new video about building a tree scanning rig on my other channel, Classy Dog Studios, next week).
Sorry but u r basically throwing money outta window if u r buying Hoya or any expensive brands. There are 2 Japanese brands that are way cheaper and perform better. Polarising filters aren't rocket science.
Thanks for this., I watch your videos just before I go out on a shoot as the advice is to the point and fun! Would be great to see a video on scanning rings for the next one. Things like poles and lighting advice would be great.
Thank you, Stuart! Glad to hear the videos are helpful to you. And I have lots planned for the scanning rigs video, I'm sure you'll find some useful info in it (including poles and lighting gear)!
I have done this with relative success in 3DF Zephyr. The way 3DF recommends to do it is to take many photos from the perimeter of the room facing inwards. Like how if you are scanning an object you are always facing the centre of the object, you always face the centre of the room. Try to use a lens that is as wide as possible. In fact 360 degree cameras work fairly well for this, and can be picked up for fairly cheap. So as usual as long as you take enough photos in a clean way and wait long enough for render time you should be fine. If you search 3DF photography for photogrammetry you'll probably find a good video giving basic instructions that include interiors.
Hello! I used Blender to create all the renders of the scans, and specifically I used Cycles inside of Blender to render them. (Except for the matcap renders from 14:10-15:56, those were rendered in the Blender viewport, which is much faster to render).
Oh, and I forgot to mention, I decimated the scans before importing them into Blender. They were all decimated to 500,000 faces, except for the factory, which I decimated to 4 million faces to avoid losing too much detail.
Thanks for your videos...one question,in your opinion,for a Canon 600d(t3i),what lens is the best?..i have E-FS 18-55 kit lens....i want sharp image and good focus range...my lens,mmmmh!!!.....especially for textures
It's hard to say, since I think it depends on what you're shooting. But I think a good all-around focal length is 20mm. I have a 10-20mm Sigma f/4-5.6, which is fairly sharp and has good depth of field. I use it often, and bought it for around $300 used from B&H. Another good option might be the 24mm Canon pancake lens, which is significantly cheaper but still good quality. Both of these lenses are designed for the smaller sensor size of our Canon Rebel cameras.
ClassyDogFilms mainly, I'm scanning walls or soils (to understand, like Sebastian Zapata) ... but also rocks and so on ... the quality is also good, but more and more, I need something better, and before deciding to take a more performing camera, I wanted to try with a better lens. Thanks a lot for the reply
Ah, that's cool! Just for your reference: some of the first scans I shot for Sebastian's Friendly Shade textures were captured using a Canon 28mm lens (intended for full frame cameras). These include the sandy ground and wooden planks. But after a few of those scans, I switched to my Sigma 10-20mm lens @ 20mm, since it gave me deeper DOF, was a bit sharper, and seemed to have less CA and softness in the corners. I started using that when I shot the manhole covers for him, if you've seen those. I also shoot with my old Canon T2i still, so the resolution is not incredible, but I make up for it by shooting somewhere between 1-2 feet away from the surface. If you're ever unsure whether to invest in a new lens or not, I recommend renting it from a place like Borrow Lenses to see if it will fit your needs. That's what I do when I'm uncertain.
ClassyDogFilms ah, I did not know that you had contributed too, very beautiful. thank you very much for this information, and I hope for new videos. Well, I'll see if I invest in a new lens,or a full frame and lens , which I think for a while. thank you very much
For the next vid please scene an entire area, like say a park or your house as im looking at producing a realistic VR environment of an entire area but agisoft just gets confused and aligns parts or just blobs. Please help. even just reply would be awesome
Hi! For the interior scanning video, I'll be sure to scan an entire room to show my approach. To describe it, you can use a variety of techniques such as projectors, creating markers, or shooting with special filters. I would advise trying out the use of markers in PhotoScan to aid in cleaning up blobby areas, since those tend to be due to having little or no points (such as solid colors on walls and ceilings). If the area is simple enough, you could then use those markers to create simple geometry to project your textures onto. The other methods, like projections and filters, can allow for more precise results, but at the cost of more time and practice required (not to mention money)! But I hope some of those ideas may help you get started!
Your tutorials are awesome! Your turntable tutorial was incredibly helpful when I first started doing scans (I was mostly scanning fossils for teaching). Thank you for taking the time to make these videos! It'd be awesome to see a tutorial on how to scan interiors, but I really want to see you do a tutorial on setups as well. Any chance of seeing both?
Thank you, Nathan! I'm glad my videos have been helpful to you. Scanning fossils sounds quite rewarding! It's great to imagine being able to capture and share resources like that. And I do plan on creating videos for both interiors and camera setups & rigs- they will just have to be separate videos since there's so much information to cover!
It was a lot of fun seeing what worked best when it came to shooting some of the specimens, although minerals where a bit of a nightmare, given their crystalline nature (I did get lucky sometimes: skfb.ly/XxVHn ). I ended up just opting for a plain white background, and covering the turntable in a sheet of white card-stock (using the same turntable as the one you had in your tutorial), and this seems to have worked out so far, but using a proper lighting setup, masking, and post-processing the images would probably improve quality significantly. Can't wait to see your next videos!!
Oh yes, I imagine scanning those types of subjects would be a bit tricky! I hope to present a few tricks in the next video that could be applied to transparent and translucent objects. By the way, you have a lot of scans on your Sketchfab page! Well done!
Interiors. Want to do a scan of my room to play around with in VR and i suspect a lot of other people will have come to your videos for similar help considering the explosions that VR hs in the market lately and that Photogrammetry is a big part of the SteamVR environments. IE the Church, Mars, and Valve Lobby environments and the various places people have done on their own using cell phones.
Great Video! Thank you. I had a question that I would appreciate your input. Have you tried using a circular polarizing filter with a ring light where a sheet of linear polarizing film was cut into and place over the ring light? I made a simple version but had a hard time noticing any advantage to this "on-the-go" set-up. Thank you again for the fun, awesome videos. Oh and to use a term, this set-up is trying to mock up cross-polarization. Also interior scanning would be fun to watch next.
Hi, Bruce! Yes, I actually shoot with just that sort of set up all the time now! And the good news is that I plan to cover cross-polarization in the interior scanning video, which looks to be what most people want to see next. I hope to have that video out early next year! I don't know if it will help, but maybe the issue lies in the filters and linear polarizing film you're using. I use my Hoya HD filters on the camera, and linear polarizing film from polarization.com (just the simple "linear polarizer by the foot", though I might try the laminated stuff in the future) on the light.
Thank you! I plan to release the video on interior scanning this summer. It's already scripted out, I just have to prepare equipment to shoot it (it uses some less conventional methods).
SUPRA COOL james !!! where is your moustache ? !! hope to see the next episode, Camera rigs or interior environnement will enjoy my day ... i ve got few questions : there is some tips to scan a human face or body ? and what could be the minimum number of camera to shoot in once ? the few time i tried was with 2 camera (with someone helping) turning around the character at the same time in 2 turn , one doing a larger the second a close up , then top/bottom shot. the result is interesting but clearly not enought. but if i want to buy maybe 50 cheapest camera sensor. what do you think ? what could be the minimum requiered to work and which quality? ...thanks and hope to see your face soon !
I've started growing the mustache back again! And in regard to your question- it is a complicated and long answer, but I plan to answer all those questions in the head and body scanning video coming out (hopefully) next year. Until then, I'll just say that I've seen some very good scans done with raspberry pi cameras, so if you're looking to build a large rig, you may want to look into those. Frédéric Chauveau de Villoutreys has done a lot of work in that area, I would search for his rigs (I know you can find them on Facebook). I hope that helps!
If I knew how to do that stuff I would consider making a video on it, but I'm such a noob at baking and anything like that. I mostly just focus on the capture process, I'm sorry!
Great vid! Interior scans please! And specifically how to deal with flat featureless walls and ceilings, how to flatten their bumpy areas and fill any holes on them!
Sensor resolution has no affect on image cropping like it's shown on 4:19, it's just density of photosensitive elements, not physical crop factor. I understand that you wanted to give better comparison of resolution scale, but that might be confusing for someone who know nothing about dslrs.
That's true, maybe I should have made the graphic a side-by-side comparison instead of fitting them all within one composition. Oh well, hopefully it wasn't too confusing!
Yes, I've actually seen some people get really good scans on cars. It helps if they're not too shiny, though. Some dirt or just general wear and tear helps a lot. You can find some good examples of car scans on the "3D Scanning Users Group" on Facebook.
ClassyDogFilms oh thanks ill check that page out! Sadly my car isn't that old and neglected, well it is old but in great condition. Are you ever going to try scanning a car?
If you live near any dusty roads, maybe you could try driving up and down them until there's enough dust to create some helpful details on your car! If you have dark paint, it will be easier than light colored paint. And I may make a special segment in an upcoming video to talk about scanning cars, since it's a question people often ask!
ClassyDogFilms thats a smart idea! Its the car in my profile pic, i have to fix it first because it doesn't really drive atm 😅 but ill definitely wait for ur video on it then
Using AESUB Scanning Spray will be very helpful. Here are 3 good tutorials on that th-cam.com/video/HR6SzyfzQrk/w-d-xo.html th-cam.com/video/gjNiP8-_lAs/w-d-xo.html th-cam.com/video/Sw1F-JjRGcw/w-d-xo.html Ryan - Iconasys
James, after you have created the model in CapturingReality or PhotosSan, what program are you using to output your examples in such high res and different colours for this video? I want to photo a building, then do some nice prints of the front facades, but PhotoScan alone seems to be really low rez.
I use Blender to showcase the scans when they are done. You could try using orthophoto or adaptive orthophoto mapping modes when generating the texture, sometimes that helps sharpen up details and utilize the UV space a little better.
Sorry, I was on a long trip and just got back! CG Geek and Gleb Alexandrov have both some tutorials like this, actually! And they both use Blender. I recommend checking them out. Just search for "Photoscan" on their channels and the correct videos should pop right up. Gleb actually made two videos about it, I believe!
Your videos on photogrammetry are pretty helpful! If I want to create a model of a portion of a rock surface, will I use just shoot head-on and no other angles?
Thank you, I'm glad you enjoyed them! And to answer your question- you should be okay with shooting head on for something like a rock face, but if there are parts of if that face mostly away from the camera (like ~90 degrees or more), then you could always go back and shoot some extra photos of those areas if you are worried they will look bad. Let me know if you have any more questions! :)
If I had the ability to, I would use a different form of scanning! But if I had to use photogrammetry, I would probably use Reality Capture, because I've seen it handle those types of subjects much better than PhotoScan. I would also try to get some dust or dirt on the car if possible. If that wasn't an option, I would try projecting a random texture pattern or noise onto the surface of the car I was working on, and shoot it in segments. I'll be covering these methods in the interior scanning guide!
yours is by far the best photogrammetry tutorials I've seen around. Just one question though, would it matter if you used more than one focal lengths in a single batch of shots for a scan in terms of the quality output, and have you tried the turntable workflow using Reality Capture? I had no luck on getting a good scan in that software with the turntable workflow. As for your poll, I'd request the next tutorial on camera rigs, esp. in how to shoot a 600+ pic scan to get the same fidelity of Romain's motorcycle here, www.artstation.com/artwork/QJGgr And one more thing, what's the lounge song that plays when you show your 3d scans in the video, love it! ;)
Thank you, Justin! I've used multiple focal lengths together in past projects, and have never noticed any issues from it. The only thing I can think of is that you might want to be careful which images you build your texture from, since there may be obvious differences in contrast/sharpness/color/etc between different lenses. I haven't used RC much, and have never tried a turntable scan with it. It might be possible, but perhaps you need a very specific setup to get it to work well. I don't know if RC supports masks for images, either. There's a lot of stuff I have planned for the camera rig video, I think you will like it! I'll ask Romain if he shot that motorcycle handheld or if he had any special gear. And the song that plays it called "Zazie" by Kevin MacLeod. You can find it on his site, incompetech.com!
Any news on Romain? It just seems like it would be much harder to shoot without blur if it is handheld, so it is best to use some sort of crane or rig to keep the cam steady at numerous different angles and positions.
I just heard back from Romain, he tells me he did indeed shoot it handheld, which I suppose makes sense if he shot around 40 images per minute (he says it was ~630 shots in around 15 minutes). A rig would allow for lots of detail, but usually at the cost of time. He did use an expensive lens, so that probably gave a little more sharpness and speed than a more typical lens would allow. But the other factor is probably just lots of practice- I've heard of Romain shooting other subjects handheld, and it always surprises me how quickly he is able to capture such good scans. That's why I say he is a machine!
Thank you! I've still never used a drone, but I've seen lots of people getting good results with them. And generally, I shoot about 300-400 images for now, although my record is 4,500 images for one subject (although I didn't have to process that one, someone else did that thankfully).
@@ClassyDogFilms 4,500 t !!! ok I did not expect this amount but the effects are stunning. did not you think about creating models for games? the use of this technique is huge but carries the danger of coding. Thank you for the information, they'll call me out of the hospital after the transplant. 😊
@@ClassyDogFilms I have developed a device that incredibly supports. I would ask for contact. I do not want money but I also do not want it to slip on the Internet without my permission. still a project that works 100% I will share it with the taba, because just like me I love to transfer knowledge
Oh, I have hardly any experience with making models for games. I've only recently started baking scans to create textures, I hope to have a free tree texture pack out soon! And sure, you can email me at classydogfilms at gmail!
Even working in tech it was a tough decision for me, but a couple recent projects would have been pretty much impossible without some of the pro features. There's a ton you and do with standard though, and the free options are only going to get better. I'm sure unity's current workflow is just their first pass.
The autodesk one? It's has some upsides and downsides, the big upside being that it's a one step process and does all the processing in the cloud. The photo count limit and limited power user controls bug me though. Reality Capture, from capturingreality.com, is also worth checking out, though the license is subscription based instead of one-off.
I'm going to stick with PhotoScan because I'm only halway through this little series of videos, but at least the tricks should work well with just about any photogrammetry software. And I figure, if I can get it to look good in PhotoScan, it should look even better in Reality Capture!
I know, it's been ages! I still plan to make one in the future with all the tips I've learned, I've just had very little time to work on anything due to my scanning work over the past ~4 years. But I do plan to make more scanning videos one day (probably just in time for them to all be obsolete).
Thanks for the awesome intro to phototgrammetry videos. Can you recommend any resources (Training videos or maybe PDFs) for post PhotoScan editing in Blender? Thanks!
Hi, Jorgen! Gosh, I can't recall seeing anything specific to Blender about that- are you looking for information focused on just creating textures from the scans, or about models+textures?
Thanks for the quick reply! I'm looking for information about editing models + textures in Blender. My goal is to build virtual reality environments for Unity and/or Unreal, but right now every model I make is over 100MB.
Ah, I see! I don't have much experience with baking, but I've seen some tools to help automate creation of lower-poly models from high res. There's one by Danyl Bekhoucha called "AssetGen" which is designed for Blender. Maybe it will help!
James, your tutes are entertaining and fun to watch! Thanks for taking the time to create these for others as its super helpful and entertaining. Keep it up!
the best tutorials on Photogrammetry you can find on yt, and the most entertaining by far. Brilliant. Please continue making this über quality content. Much appreciated. Thanks a lot.
Thank you! I hope you'll enjoy the future videos just as much. I also have some new scanning content coming to the "Classy Dog Studios" channel soon that might interest you, too. Next month I'll be putting up a video showing how to build a simple little rig for scanning trees and flat surfaces quickly.
EPIC MUSIC !!!! such complicated matters .... such simple tunes
Haha, thank you. I never think about the music until the last minute, but I'm glad I took my time and didn't rush choosing the tracks!
James your photogrammetry tuts were getting better and better, and this one is really unholy majestic! so many useful bits, from polarizing filter to delighting, to drones, telephoto lenses, etc. By the way, have you tested the same industrial scene in Reality Capture?
Thank you, Gleb! Actually, I did buy a license of Reality Capture to try it out, but funny enough, I got a better result in the demo version than I did in the official version. I don't know why I couldn't replicate the quality in the licensed version; perhaps it's a change in the software between the two. I hope to learn a little more about RC in the future and figure out how to better control the settings. The UI is a bit daunting to me.
Want to notice that RC has monthly subscription on Steam. Also it can be a lot cheaper than on web site. For my country it's only 12$ per month. But for UK it's something aroung 30 euro. So check Steam first)
@@alexanderkolyasa5850 Thank you for the tip!
I know Im asking randomly but does any of you know a tool to get back into an Instagram account?
I stupidly lost the password. I love any assistance you can offer me.
@Billy Ellis i really appreciate your reply. I got to the site thru google and im in the hacking process atm.
I see it takes a while so I will get back to you later when my account password hopefully is recovered.
Thanks a lot for this series of splendid tutorials.. You are a gem of a guy.. Waiting for the interiors video!! :)
Thank you! I hope you'll enjoy the interior scanning video, there will be a lot of different tips in it that I don't see people talking about very often.
Thk for the video, I vote for the interior too and hope to see your next video very soon.
Thank you! It looks like interior scanning is winning by a landslide. I hope to have it out early next year!
A lot of great information here, thank you!!! 💪⭐
Thank you, I'm really glad you liked it!
You know you're in for a good time if the introduction has a Macho Man Randy Savage and Ultimate Warrior reference 🤣👍🏻
Great video. Love the humor added. AESUB scanning spray and Iconasys computer-controlled turntables would work great for products or smaller things. That photogrammetry tank was one of the coolest things I've ever seen. You are awesome 👏🏻
Ryan - Iconasys
Thanks, Ryan! Those would be great things for me to include in some of the future installments I want to make for the series. Hopefully those will be fun to watch, too!
This was the best photoscan guide to man-made environments video I've ever seen. For me, I'd like to know how to take a bricks scan and make that into a tileable texture (diffuse + height map). This has been haunting me at night.
There are a couple ways to do it. Let's say you have 1.5x2 meters worth of brick, and want to end up with a 1x1 meter tiling texture...
One way to handle it would be take your nearly flat geometry, bring it into your 3d program, then project that model onto a quad. From there you can use XNormal to project your high poly texture onto your flat model including whichever channels you wish (diffuse, normals, occlusion, etc.). If you then bring that into Photoshop, you can use bring the texture into groups, then use masking and offsetting to nondestructively make it tile.
The main downside to this method is not being able to use tools like healing brush and content aware fill because you're working with groups of layers instead of layers themselves. It's also tedious to do more than a few groups of layers, because when you're ready to export there will be a lot of things that have to be turned off and on. Fortunately this can be resolved by turning the initial group into a smart object before editing. That way you can isolate a layer once and resave to get each kind of map.
Another way is to instance the high poly geometry in your 3d program, make a 3x3 grid of them based on the distance you want your final texture to be, then delete parts out that mess with the overlap. This is more or less how you set up tiled geometry in general. This method can be cumbersome to work with because of the large polycounts involved by duplicating the high poly 9 times. Once you have that, you can either set up a camera to have the exact right range for perfect tiling to generate your maps from, or you can again bring things into XNormal to project. The benefit of this approach is not having to go into photoshop.
Other than that, there's some things you can do in zbrush, and also Substance painter now has a cloning tool.
Thank you, Olivier! I'm glad you enjoyed the video! I'm actually way better at shooting than I am at baking textures and all that stuff, but I think Smallpoly's explanation below is pretty good! If you have Substance Designer, you can actually user their alternate method of scanning, which should be suitable for creating tiling textures if you aren't trying to capture too big of an area. Here's a link to an article about it: www.allegorithmic.com/blog/your-smartphone-material-scanner
you know for anyone that wants to try some free software, before getting invested into photoscanning there is always also the option of using Colmap and Meshlab....
Yes, that's a good recommendation! Gleb Alexandrov also made a video about using free software to create scans.
yes, although he used VisualSFM and Meshlab, but VisualSFM is no longer supported and i think its been taken down
Interiors! great stuff!
Thanks, Phil! And it looks like interiors will be the subject of the next video, a lot of people have voted for them!
Hahaaaaa. Love the intro! BEAUTIFUL. Great tutorials by the way. Thank you for the work, guys! Have a happy and great 2019!
Thank you, Marc! I hope you're having a great new year, too!
Dude! You always share useful information!! Thank you!! Btw, interior scanning will be great for the next video :D
Thank you, I'm happy to hear you found it informative! And it looks like interior scanning will be the next video, a lot of people are asking for it. I have a lot of tips for that one!
I automatically hit pause during your camera Sensor/Price Slide. Great tutorial. thx
Haha, thank you! I'm glad you liked it!
Awesome videos
Thank you, Александр! I'm "de-lighted" you enjoy them!
Also interior scanning please. People seem to share their gear and how they generally use it but not their techniques a lot of the time. I don't blame them though.
Thundertastic I'd like a gear one and how to do PBR
I have a lot of tips for the room scanning video all ready to go!
ClassyDogFilms Thanks for the great vids!
Also, I love your sense of humor, I heard "protection" then saw the image, was like "nah, I didn't just see that" then went back again and LMAO
Haha, thank you! I was hoping I would get that reaction from someone!
when shooting head on you're actually just using the sun or your light source to cast shadows on your material in order for the detail to stand out - so in fact you're not shooting head on in relation to the light.
great tut thx.
Thank you!
I loved how you showed the brick wall on the desert background. How did you do that? Your new SUBSCRIBER, Paul
Thanks for subscribing, Paul! I rendered the brick wall in Blender, using an HDRI map from HDRI Haven (I think it's the "Goegap" one). I also used the viewport renderer for the first pass just showing the mesh, and Cycles for the fully rendered pass. Hopefully that helps explain it!
@@ClassyDogFilms NOPE! lol Make a video, please. I have seen that done once before from The Drone U guys on an old western street and then placed on a sky background. Mega cool!
I actually know Photoscan! Pretty good!
Thank you! I'm glad you enjoyed it!
very useful info
Thank you! I'm glad you found it helpful!
Finally
I'm glad to finally have a new video up!
Thank alot for this!
I'm glad you enjoyed it!
Hi James, great video.Can I ask how you clean up the model?Say your point cloud and dense cloud have holes or blobs or worse a double layer of the same image sticking out/ over lapping.Thanks
When you see that guy taking 200 pictures of a bench in the park, or a sidewalk...
People these days will think you're a lunatic
I've definitely had a few odd looks when I'm out shooting. Spaces covered in tracking markers are pretty funny looking too.
I just make sure to mumble incoherently and they keep their distance. I don't like interruptions when I'm scanning!
Yasss, so much of yess.
I'm glad you enjoyed it!
Am I the only one who drooled while pausing the beautiful camera comparison graphic?... mmm m
Awsome tutorial !! can you tell me what software you would recommend for capturing 3d of heritage buildings(a lot of details) for a virtual city tour I'm trying to prepare ... also it has to be exportable to pdf or something easier to share to the public. so far I have only tried Agisoft photoscan..
Hi, Sara! Sorry for the delayed reply, I just saw your message. I would recommend trying out the new option of generating meshed from depth maps in Metashape (PhotoScan's new name). Basically it allows you to skip building the dense point cloud, and it could be quite helpful for retaining more smaller details. So essentially, you just align the photots and then generate the mesh (it should show the "from depth maps" option, that's what you want to use).
As for how to share it, I would recommend something like Sketchfab, since you can also add points of interest to show off specific areas, which I imagine is useful for virtual tours. Maybe exporting as a PDF is possible too, but I have no idea, I never made one for anything besides text! haha. I hope that helps, let me know if you have any more questions!
This definitely was worth the weight
Thank you!
awesome video and camera rigs pls for next vid.
Thank you! I always enjoy talking about camera rigs!
Interior!!!
A lot of other people want to see interiors, too! I think it's in the lead right now. The script is all ready to go.
ClassyDogFilms nice one, looking forward to it! :)
also would like to know is there any methods how to scan roughness(gloss) data? I always making it from the albedo and height map in Substance Designer. But maybe there is some setups that allows you to scan this data too?
That's a good way to fake it! And about scanning roughness; it's something I want to learn how to do, but I've not spent much time on it yet. But if I do figure it out, I'll include information on how I did it in a future video!
Fav for david tennant
Haha, thank you!
What about photoscanning things underwater? Is there anything special I should be thinking about?
Great video anyways!
Sorry for the delayed reply! You know, I've seen a fair number of people scanning underwater, and they say they don't have any issues with it (such as refraction). I've never used an underwater housing, so I don't know if there are any requirements for it there. But I think as long as your camera is fully immersed in the water, it should work okay. I think it's when you're shooting through a variety of mediums (such as air and glass and water) that problems with the changes in refraction start to come up.
Also, it sounds obvious, but the clearer the water you're shooting in, the easier it will be! Murky water will greatly limit how far away you can be from the subject. I'd recommend a small test scan or two before you "dive" into any big projects, just to get your "feet wet".
@@ClassyDogFilms Thanks! I will do some tests, and if successful, i'll try in the nearby lake or sea. And/or if possible, as i haven't seen any videos on this, maybe you could do one? It would be very helpfull for us who wants to go "deeper" into photogrammetry.
Thanks for the reply again!
That's a good suggestion! If I'm able to get my hands on an underwater rig, I'll be sure to include it in a future video.
By the way, I've seen people posting underwater scans over on the 3D scanning groups on Facebook. It might be worth checking out!
Interior environment pls
interior photoscanning plz
I am interested in seeing a miniature scanned. By miniature, I mean what the film and TV industry call a scaled model. Usually painted and aged to look real. Like what a model train enthusiast might make for his\her train set. Plaster for the terrain and little trees made of plastic, rubble made of real pebbles etc. All to make a tabletop model look like a massive rocky cliff. These are typically used for matte paintings. Take for example a scaled down model of a rocky cliff. Because this subject is indoors and movable ( within reason) I would assume you could get unlimited photos at just about any angle. I'm interested to see how something that is made by hand like a plaster cliff that is also painted as faux rocks etc how it will translate in the scanning process. I work as a VFX artist. I have worked with miniatures shot in front of a green screen hundreds of time. But this Photo scan tech could change the way we integrate those scaled models or "Miniatures, and the way they are utilized in our workflow, or Pipeline as it is usually referred to. Great videos, very informative. Thank you.
I did something like that recently of a thrift store find, though it's not my best work. skfb.ly/6u77D
There are also some much more talented people doing a game called "Trüberbrook" using photogrammetry shot miniatures as 3D background plates. Tech breakdown vid: th-cam.com/video/5rqZ1KTXOEQ/w-d-xo.html
There's also a reddit post about it here with some more info: www.reddit.com/r/photogrammetry/comments/6kp6c1/video_game_using_photogrammetry_of_scale_models/
That's a great suggestion, Robert. I've thought about scanning miniatures in the past, but have never attempted it yet. Although I have been playing with the idea of a PhotoScan video focusing on how to scan very subjects. Scale models would certainly be a good fit for that subject, so hopefully that will be a subject I can make a video on! Thanks for the excellent suggestion, and I'm glad you enjoyed the video!
Your scan turned out pretty well, Smallpoly! I like it.
And I thought of the same thing when Robert mentioned scanning miniatures. I don't know if it was the same team or not, but I saw a game being created that incorporated the same idea: building and scanning miniature sets instead of creating them entirely on the computer. A really novel and interesting concept!
hi
please insert tutorial about reality capture
HDRVault appears to have disappeared since this video was made.
You're right! I think you can still find it on Gumroad, but I know Philip has also uploaded some HDRIs to HDRI-Haven since this video was uploaded, so I'm assuming he's no longer focusing HDRVault.
You said wait for part 5, It's been 9 months, Are you still working on it or have plans to work on it?
Hello! Yes, I still intend to release it- but it will probably be at the end of this year. There's some scanning work I have to finish before I can put it up, and that's been eating up a lot of my time. But I hope it will be worth the wait. I appreciate your patience!
That's Great! I hope it turns out great.
Also, note to any passer-by's who see this comment after the video comes up, would you mind telling me? I'll probably forget.
Thanks! And if they don't remember to tell you, hopefully I will! Haha.
I'd be up for seeing your take on interiors for sure. They can be a huge pain, especially in low lighting.
I have a bunch of tips for interiors that I think you'll find helpful!
I scanned a whole 9 building blocks once and did it parts with rather good detail... on a laptop. The first step I used all of the photos to align the model right and then I did subsets of max photos number with my computer with just 16gb of RAM for the Dense cloud step. You should figure that technique out too and see if you can show how to use laptops to their fullest when photoscaning.
So to recap:
1. Use all the photos for the aligment part.
2. Then divide the pics to subset for the dense cloud creation part.
3. Combine the scans in your 3D software of choice.
Wow, that is really impressive! I'll have to learn this technique, great suggestion!
Joo.Works so do you mean doing 2 dense clouds?
What, What, say What?
YOUR BACK!!!!11
Thank you, it's good to be back!
Its his back, he is back. *You're
Thanks for keeping it classy James, great entertaining tutorial as always.
I'm sure you're already aware of this but just as a heads up to those who aren't: some of the PhotoScan issues addressed in this video are overcome in the latest version of PhotoScan:
- The thinner elements of your cement factory scan would likely have been reconstructed better using PhotoScan's new "visibility consistent mesh generation" and "volumetric masking" options (see PhotoScan blog on how to use them here: www.agisoft.com/index.php?id=48)
- Delighting (at least for soft shadows) is now built in to PhotoScan (as you said in the video: expect more and more software to have this built in in the future) (see PhotoScan blog: www.agisoft.com/index.php?id=42)
Thank you, Thomas! That's great to hear! I didn't even know about some of those new features. Thanks for posting about it!
I need 4 Terrabites or RAM now after this video plus 20 AMD Threadrippers for my Physical Virtual Reality.
Hi, one weird question! How did you get Google Earth online just orbit? It just keeps orbiting and I would love to get that! Awesome photoscan video. Maybe I'll post anything I do. Cool!
Thank you, Jeffrey! I don't know if it makes a difference, but I had loaded up Google Maps instead of Google Earth (I don't know if the buttons are the same between the two), and I noticed when I switched from 2D view to 3D view, it would begin the rotation. So I just loaded up the screen capture and switched from 2D to 3D view. I hope that helps!
Man! Your photogrammetry videos made my day. Please keep on!
Thank you, Anton! I hope to have the next one done later this year (also will have a new video about building a tree scanning rig on my other channel, Classy Dog Studios, next week).
Sorry but u r basically throwing money outta window if u r buying Hoya or any expensive brands. There are 2 Japanese brands that are way cheaper and perform better. Polarising filters aren't rocket science.
Tell us what the two Japanese brands are that perform better and are way cheaper, please!
Thanks for this., I watch your videos just before I go out on a shoot as the advice is to the point and fun!
Would be great to see a video on scanning rings for the next one. Things like poles and lighting advice would be great.
Thank you, Stuart! Glad to hear the videos are helpful to you. And I have lots planned for the scanning rigs video, I'm sure you'll find some useful info in it (including poles and lighting gear)!
I would like to see a scan of a whole interior room.
I plan to attempt this in the interior scanning guide! At least one room!
I have done this with relative success in 3DF Zephyr.
The way 3DF recommends to do it is to take many photos from the perimeter of the room facing inwards.
Like how if you are scanning an object you are always facing the centre of the object, you always face the centre of the room.
Try to use a lens that is as wide as possible.
In fact 360 degree cameras work fairly well for this, and can be picked up for fairly cheap.
So as usual as long as you take enough photos in a clean way and wait long enough for render time you should be fine. If you search 3DF photography for photogrammetry you'll probably find a good video giving basic instructions that include interiors.
One of the best youtube videos ever.
You're too kind! Thank you, George! I'm glad you enjoyed it.
Really good video! I'd be interested in the cross-polarization workflow using a ring flash :)
Thank you! I actually plan to cover cross-polarization with ring flashes in one of the upcoming videos!
Your videos are both helpfull and entertaining. Thank you:)
Thank you, Karsten! I'm honored!
interior! interior! interior! interior! interior! please :) good job man!!!
Haha, thank you! A lot of other people want interiors next, too, I think it's in the lead for the next video.
Hi :), which software did you use for render your meshes like at 15:57 ? thanks you !
Hello! I used Blender to create all the renders of the scans, and specifically I used Cycles inside of Blender to render them. (Except for the matcap renders from 14:10-15:56, those were rendered in the Blender viewport, which is much faster to render).
Oh, and I forgot to mention, I decimated the scans before importing them into Blender. They were all decimated to 500,000 faces, except for the factory, which I decimated to 4 million faces to avoid losing too much detail.
ok thanks for the tips :) !
Thanks for your videos...one question,in your opinion,for a Canon 600d(t3i),what lens is the best?..i have E-FS 18-55 kit lens....i want sharp image and good focus range...my lens,mmmmh!!!.....especially for textures
It's hard to say, since I think it depends on what you're shooting. But I think a good all-around focal length is 20mm. I have a 10-20mm Sigma f/4-5.6, which is fairly sharp and has good depth of field. I use it often, and bought it for around $300 used from B&H. Another good option might be the 24mm Canon pancake lens, which is significantly cheaper but still good quality. Both of these lenses are designed for the smaller sensor size of our Canon Rebel cameras.
ClassyDogFilms mainly, I'm scanning walls or soils (to understand, like Sebastian Zapata) ... but also rocks and so on ... the quality is also good, but more and more, I need something better, and before deciding to take a more performing camera, I wanted to try with a better lens. Thanks a lot for the reply
Ah, that's cool! Just for your reference: some of the first scans I shot for Sebastian's Friendly Shade textures were captured using a Canon 28mm lens (intended for full frame cameras). These include the sandy ground and wooden planks. But after a few of those scans, I switched to my Sigma 10-20mm lens @ 20mm, since it gave me deeper DOF, was a bit sharper, and seemed to have less CA and softness in the corners. I started using that when I shot the manhole covers for him, if you've seen those. I also shoot with my old Canon T2i still, so the resolution is not incredible, but I make up for it by shooting somewhere between 1-2 feet away from the surface. If you're ever unsure whether to invest in a new lens or not, I recommend renting it from a place like Borrow Lenses to see if it will fit your needs. That's what I do when I'm uncertain.
ClassyDogFilms ah, I did not know that you had contributed too, very beautiful. thank you very much for this information, and I hope for new videos. Well, I'll see if I invest in a new lens,or a full frame and lens , which I think for a while. thank you very much
Thank you! Yes, take time to consider your options. You can really do so much without spending a lot of money!
For the next vid please scene an entire area, like say a park or your house as im looking at producing a realistic VR environment of an entire area but agisoft just gets confused and aligns parts or just blobs. Please help. even just reply would be awesome
Hi! For the interior scanning video, I'll be sure to scan an entire room to show my approach. To describe it, you can use a variety of techniques such as projectors, creating markers, or shooting with special filters. I would advise trying out the use of markers in PhotoScan to aid in cleaning up blobby areas, since those tend to be due to having little or no points (such as solid colors on walls and ceilings). If the area is simple enough, you could then use those markers to create simple geometry to project your textures onto.
The other methods, like projections and filters, can allow for more precise results, but at the cost of more time and practice required (not to mention money)! But I hope some of those ideas may help you get started!
Your tutorials are awesome! Your turntable tutorial was incredibly helpful when I first started doing scans (I was mostly scanning fossils for teaching). Thank you for taking the time to make these videos!
It'd be awesome to see a tutorial on how to scan interiors, but I really want to see you do a tutorial on setups as well. Any chance of seeing both?
Thank you, Nathan! I'm glad my videos have been helpful to you. Scanning fossils sounds quite rewarding! It's great to imagine being able to capture and share resources like that.
And I do plan on creating videos for both interiors and camera setups & rigs- they will just have to be separate videos since there's so much information to cover!
It was a lot of fun seeing what worked best when it came to shooting some of the specimens, although minerals where a bit of a nightmare, given their crystalline nature (I did get lucky sometimes: skfb.ly/XxVHn ). I ended up just opting for a plain white background, and covering the turntable in a sheet of white card-stock (using the same turntable as the one you had in your tutorial), and this seems to have worked out so far, but using a proper lighting setup, masking, and post-processing the images would probably improve quality significantly.
Can't wait to see your next videos!!
Oh yes, I imagine scanning those types of subjects would be a bit tricky! I hope to present a few tricks in the next video that could be applied to transparent and translucent objects.
By the way, you have a lot of scans on your Sketchfab page! Well done!
Interiors. Want to do a scan of my room to play around with in VR and i suspect a lot of other people will have come to your videos for similar help considering the explosions that VR hs in the market lately and that Photogrammetry is a big part of the SteamVR environments. IE the Church, Mars, and Valve Lobby environments and the various places people have done on their own using cell phones.
That's a good point! It looks like interiors are what most people voted on, so that will be the subject of the next video!
This intro brought back memories of "can you quack like a duck" song, very epic, thank you
Best! You should know your options. And a quick flash of LIDAR :D Sure buy me one im gonna use it every day :D
Haha, I would too if I could afford it!
Great Video! Thank you. I had a question that I would appreciate your input. Have you tried using a circular polarizing filter with a ring light where a sheet of linear polarizing film was cut into and place over the ring light? I made a simple version but had a hard time noticing any advantage to this "on-the-go" set-up. Thank you again for the fun, awesome videos. Oh and to use a term, this set-up is trying to mock up cross-polarization. Also interior scanning would be fun to watch next.
Hi, Bruce! Yes, I actually shoot with just that sort of set up all the time now! And the good news is that I plan to cover cross-polarization in the interior scanning video, which looks to be what most people want to see next. I hope to have that video out early next year!
I don't know if it will help, but maybe the issue lies in the filters and linear polarizing film you're using. I use my Hoya HD filters on the camera, and linear polarizing film from polarization.com (just the simple "linear polarizer by the foot", though I might try the laminated stuff in the future) on the light.
Great job! Just found your profile and it's great. So, are you planning to release interior video? :)
Thank you! I plan to release the video on interior scanning this summer. It's already scripted out, I just have to prepare equipment to shoot it (it uses some less conventional methods).
SUPRA COOL james !!! where is your moustache ? !! hope to see the next episode, Camera rigs or interior environnement will enjoy my day ... i ve got few questions : there is some tips to scan a human face or body ? and what could be the minimum number of camera to shoot in once ? the few time i tried was with 2 camera (with someone helping) turning around the character at the same time in 2 turn , one doing a larger the second a close up , then top/bottom shot. the result is interesting but clearly not enought. but if i want to buy maybe 50 cheapest camera sensor. what do you think ? what could be the minimum requiered to work and which quality? ...thanks and hope to see your face soon !
I've started growing the mustache back again! And in regard to your question- it is a complicated and long answer, but I plan to answer all those questions in the head and body scanning video coming out (hopefully) next year. Until then, I'll just say that I've seen some very good scans done with raspberry pi cameras, so if you're looking to build a large rig, you may want to look into those. Frédéric Chauveau de Villoutreys has done a lot of work in that area, I would search for his rigs (I know you can find them on Facebook). I hope that helps!
post processing workflow from super high poly , down to something manageable would be amazing.
If I knew how to do that stuff I would consider making a video on it, but I'm such a noob at baking and anything like that. I mostly just focus on the capture process, I'm sorry!
Great vid! Interior scans please! And specifically how to deal with flat featureless walls and ceilings, how to flatten their bumpy areas and fill any holes on them!
Thank you! I'll be sure to share all the tricks I know in the interior video to help deal with those problems!
Sensor resolution has no affect on image cropping like it's shown on 4:19, it's just density of photosensitive elements, not physical crop factor. I understand that you wanted to give better comparison of resolution scale, but that might be confusing for someone who know nothing about dslrs.
That's true, maybe I should have made the graphic a side-by-side comparison instead of fitting them all within one composition. Oh well, hopefully it wasn't too confusing!
Can you show how to photoscan a car? Its shiney though, is it even possible?
Yes, I've actually seen some people get really good scans on cars. It helps if they're not too shiny, though. Some dirt or just general wear and tear helps a lot. You can find some good examples of car scans on the "3D Scanning Users Group" on Facebook.
ClassyDogFilms oh thanks ill check that page out! Sadly my car isn't that old and neglected, well it is old but in great condition. Are you ever going to try scanning a car?
If you live near any dusty roads, maybe you could try driving up and down them until there's enough dust to create some helpful details on your car! If you have dark paint, it will be easier than light colored paint. And I may make a special segment in an upcoming video to talk about scanning cars, since it's a question people often ask!
ClassyDogFilms thats a smart idea! Its the car in my profile pic, i have to fix it first because it doesn't really drive atm 😅 but ill definitely wait for ur video on it then
Using AESUB Scanning Spray will be very helpful.
Here are 3 good tutorials on that
th-cam.com/video/HR6SzyfzQrk/w-d-xo.html
th-cam.com/video/gjNiP8-_lAs/w-d-xo.html
th-cam.com/video/Sw1F-JjRGcw/w-d-xo.html
Ryan - Iconasys
Well worth the wait. The Monty Python dress up was just the icing on the cake.
Thank you! It was a lot of extra work for what amounted to about 5 seconds of footage, but I'm glad you enjoyed it!
James, after you have created the model in CapturingReality or PhotosSan, what program are you using to output your examples in such high res and different colours for this video? I want to photo a building, then do some nice prints of the front facades, but PhotoScan alone seems to be really low rez.
I use Blender to showcase the scans when they are done. You could try using orthophoto or adaptive orthophoto mapping modes when generating the texture, sometimes that helps sharpen up details and utilize the UV space a little better.
Any chance you could do a short tutorial on moving from a photogrammetry app to a rendering and modelling app? Like blender 🤓 Many Thanks.
Sorry, I was on a long trip and just got back! CG Geek and Gleb Alexandrov have both some tutorials like this, actually! And they both use Blender. I recommend checking them out. Just search for "Photoscan" on their channels and the correct videos should pop right up. Gleb actually made two videos about it, I believe!
Your videos on photogrammetry are pretty helpful! If I want to create a model of a portion of a rock surface, will I use just shoot head-on and no other angles?
Thank you, I'm glad you enjoyed them! And to answer your question- you should be okay with shooting head on for something like a rock face, but if there are parts of if that face mostly away from the camera (like ~90 degrees or more), then you could always go back and shoot some extra photos of those areas if you are worried they will look bad. Let me know if you have any more questions! :)
Great video, worth every minute of waiting. Do interior scan please!
Thanks, Tomás! I already have a script for the interior scanning video ready to go!
I was wondering... How would you approach a full scan of a car? Exterior and interior, including the motor bay...
If I had the ability to, I would use a different form of scanning! But if I had to use photogrammetry, I would probably use Reality Capture, because I've seen it handle those types of subjects much better than PhotoScan. I would also try to get some dust or dirt on the car if possible. If that wasn't an option, I would try projecting a random texture pattern or noise onto the surface of the car I was working on, and shoot it in segments. I'll be covering these methods in the interior scanning guide!
Lol, I gave a Like because of the camera comparison guide comment.
Thank you! I'm glad somebody noticed!
This video is pure gold. Thanks so much for the effort and for sharing. Best regards from Bolivia.
Thank you, I'm glad you enjoyed it! I hope you're doing well!
This is so nicy nice. Thank you for this useful video!
Thank you for the kind words!
you are a genious !
Thank you for your kind words, I'm glad you enjoyed the video!
I'd love to see some interior scanning!
I hope to have the interior scanning video done before the end of the year!
@@ClassyDogFilms Which year ? ;F :D
yours is by far the best photogrammetry tutorials I've seen around. Just one question though, would it matter if you used more than one focal lengths in a single batch of shots for a scan in terms of the quality output, and have you tried the turntable workflow using Reality Capture? I had no luck on getting a good scan in that software with the turntable workflow. As for your poll, I'd request the next tutorial on camera rigs, esp. in how to shoot a 600+ pic scan to get the same fidelity of Romain's motorcycle here, www.artstation.com/artwork/QJGgr
And one more thing, what's the lounge song that plays when you show your 3d scans in the video, love it! ;)
Thank you, Justin! I've used multiple focal lengths together in past projects, and have never noticed any issues from it. The only thing I can think of is that you might want to be careful which images you build your texture from, since there may be obvious differences in contrast/sharpness/color/etc between different lenses.
I haven't used RC much, and have never tried a turntable scan with it. It might be possible, but perhaps you need a very specific setup to get it to work well. I don't know if RC supports masks for images, either.
There's a lot of stuff I have planned for the camera rig video, I think you will like it! I'll ask Romain if he shot that motorcycle handheld or if he had any special gear. And the song that plays it called "Zazie" by Kevin MacLeod. You can find it on his site, incompetech.com!
Any news on Romain? It just seems like it would be much harder to shoot without blur if it is handheld, so it is best to use some sort of crane or rig to keep the cam steady at numerous different angles and positions.
I just heard back from Romain, he tells me he did indeed shoot it handheld, which I suppose makes sense if he shot around 40 images per minute (he says it was ~630 shots in around 15 minutes). A rig would allow for lots of detail, but usually at the cost of time. He did use an expensive lens, so that probably gave a little more sharpness and speed than a more typical lens would allow. But the other factor is probably just lots of practice- I've heard of Romain shooting other subjects handheld, and it always surprises me how quickly he is able to capture such good scans. That's why I say he is a machine!
Holy moly this is amazing. Good tut. Thnx man. Question: how many picture shot ? And use drone ?
Thank you! I've still never used a drone, but I've seen lots of people getting good results with them. And generally, I shoot about 300-400 images for now, although my record is 4,500 images for one subject (although I didn't have to process that one, someone else did that thankfully).
@@ClassyDogFilms 4,500 t !!! ok I did not expect this amount but the effects are stunning. did not you think about creating models for games? the use of this technique is huge but carries the danger of coding. Thank you for the information, they'll call me out of the hospital after the transplant. 😊
@@ClassyDogFilms I have developed a device that incredibly supports. I would ask for contact. I do not want money but I also do not want it to slip on the Internet without my permission. still a project that works 100% I will share it with the taba, because just like me I love to transfer knowledge
Oh, I have hardly any experience with making models for games. I've only recently started baking scans to create textures, I hope to have a free tree texture pack out soon! And sure, you can email me at classydogfilms at gmail!
New versions of Photoscan have delighting function too
Yeah, though only if you have $3500 to throw at a pro license
Smallpoly I'm a broke college student, that's more expensive than my car...
Even working in tech it was a tough decision for me, but a couple recent projects would have been pretty much impossible without some of the pro features. There's a ton you and do with standard though, and the free options are only going to get better. I'm sure unity's current workflow is just their first pass.
Smallpoly I'm just gonna learn Recap Pro as I can get it for free, being a student has perks.
The autodesk one? It's has some upsides and downsides, the big upside being that it's a one step process and does all the processing in the cloud. The photo count limit and limited power user controls bug me though. Reality Capture, from capturingreality.com, is also worth checking out, though the license is subscription based instead of one-off.
I like the intro
Amazing videos!! Interior scanning Please.
Thank you, Carlos! The next guide will indeed cover interior scanning!
You're back! Yeahhhh
It's good to finally have a new video up, and good to see you again!
interior scanning with RealityCapture please
I'm going to stick with PhotoScan because I'm only halway through this little series of videos, but at least the tricks should work well with just about any photogrammetry software. And I figure, if I can get it to look good in PhotoScan, it should look even better in Reality Capture!
I'm still waiting for that new photo scanning vid :(
I know, it's been ages! I still plan to make one in the future with all the tips I've learned, I've just had very little time to work on anything due to my scanning work over the past ~4 years. But I do plan to make more scanning videos one day (probably just in time for them to all be obsolete).
I found using a long extension pole handy and remoting the live feed to my phone.
That's a great way to do it, then you know exactly what the camera is looking at!
Crappy Gpu= SPAM HEIGHT MAPS
this is just majestic...
Thank you, Diego!
LOL, mate congratulations for you back and a lot apreciate you efford making this content!
Thank you so much, José, I'm glad you enjoyed the video! I hope your own projects are going well, friend!
hey mate I hope see a photo scan guide for organics, just animals or humans, the best wish on all !!
That is a good suggestion, Jose! I already have some ideas for a human/animal scanning video that I would like to make next year!
Thanks for the awesome intro to phototgrammetry videos. Can you recommend any resources (Training videos or maybe PDFs) for post PhotoScan editing in Blender? Thanks!
Hi, Jorgen! Gosh, I can't recall seeing anything specific to Blender about that- are you looking for information focused on just creating textures from the scans, or about models+textures?
Thanks for the quick reply! I'm looking for information about editing models + textures in Blender. My goal is to build virtual reality environments for Unity and/or Unreal, but right now every model I make is over 100MB.
Ah, I see! I don't have much experience with baking, but I've seen some tools to help automate creation of lower-poly models from high res. There's one by Danyl Bekhoucha called "AssetGen" which is designed for Blender. Maybe it will help!
I'll check out their stuff. Thanks!
Some really good advice here. Thank you.
Thanks, Michael! That means a lot!
nice tutorial ! wondering what render did u used to render the result showed in video?
Thank you! I used Blender to render the animations in this video. Now with Eevee, it will be even easier to get scan demos rendered for future videos.
Camera rigs and setup! pls
I have a lot of ideas for that one!
Thanks for sharing the knowledge !
You're welcome, Pascal! Thanks for watching!
camera rigs please!
Camera rigs for scanning please
I'm looking forward to making that one; I have tons of ideas for the video already!
@7:21 oh my he thicc
James, your tutes are entertaining and fun to watch! Thanks for taking the time to create these for others as its super helpful and entertaining. Keep it up!
Thank you for the kind words, I'm very glad you like them!
18:26 LIDAR
Блин! Где он ИЖа взял?) 1:13
#BringBackTheMoustache
I've been thinking about bringing it back actually, haha!