Great tutorial - like the pace you work at as it's easy to follow without being too slow. I will forever call the colour amount 'Steve' from now on! Keep up the good work!
Steve for the win! Thanks, I'm glad you enjoy the pace, I always hated it when people rushed a tutorial, I think learning takes tame and understanding :D
great tutorial, thank you!! i wasn't expecting the difference to be too significant but that comparison at the end really sold it for me. super impressive effect :) ! long live steve
@@philipkriegel Would love to know how to extend these refractions into the shadows (like how like goes through cut glass) Is that an easy adjustment to the shadow ray?
I have a tutorial on custom caustics which is probably what you are looking for, feel free to check it out, it's fairly easy to do once you see the setup!
It also helps alot that you are explains the physics and the wayworking of each nodes also! Thank you so much fo the tut and keep up the awesome work!!!
Awesome tutorial. I can only imagine how much trial and error this must have took. I'll be using this madlad for glass of all kinds going forward (minus windows)
I don't plan on making any lighting tutorials since I need to still become better at it myself, but once I'm on a more confident level, I'll cover that as well :D
@@philipkriegel Du bist ja ein Glas Experte. Hättest du Mal Lust ein Video zu machen, wie man "antique Glas" in blender machen kann ? Also mit der schönen Reflexion? Ich habe mich gestern dumm und dämlich herumprobiert.
Das macht so gut wie keinen Unterschied wie alt das Glas ist. Wenn du Probleme mit der Spiegelung und der Lichtbrechung hast, dann liegt es vermutlich daran, dass dein IOR falsch eingestellt ist. Darauf ankommend aus welcher Zeit das Glas kommt, wurde vermutlich eine andere Form von Glas benutzt, die haben alle einen anderen Lichtbrechungsindex. Hier ist eine Seite auf der du viele verschiedene Optionen gelistet bekommst, unter der du bestimmt auch dein Wunschglas finden wirst: pixelandpoly.com/ior.html ansonsten, wenn du weiterhin Probleme damit haben solltest, kannst du mir gerne Privat auf Discord schreiben und mir die Datei senden an der du arbeitest, ich helfe dir gerne weiter :)
@@philipkriegel oh ja sehr gerne, wie ist denn dein discord Tag ? Ja ich meine mit antique Glas nicht unbedingt altes Glas. So heißt die Art von Glas. Kannst ja Mal googlen. Das Glas hat eine ähnliche Reflexion wie Wasser auf dem Meeresgrund.
Philip Kriegel#4553 Das ist der Tag kannst es mir gerne schicken, ich schaue es mir dann nach der Arbeit oder in meiner Pause an :) du findest aber auch meinen Discord Server in der Videobeschreibung
Absolutely brilliant. Extremely technical but the results are worth it. Would you do anything differently if you wanted to put an object inside the glass? I don't mean liquid, perhaps a metal spoon, or a toy or something
No, this setup pretty much works for all use cases Just make sure that your solid object doesnt intersect with the glass itself since that will always create weird results, no matter what shader you use
Instead of me adding all those nodes and since glass is basically glass everywhere on planet Earth, I wonder is there a way to download your glass setup? The basic glass node just looks like chrome reflecting the environment with no real transparency. Maybe someone has this online somewhere if you don't. very nice results. Would be good for some closeup subjects, as you said.
THis is awesome! DO you think I could use it to make stained glass windows refracting colored light in the floor of a space? Thanks for your node magic.
Should the Math node to the red Refraction BSDF node use the Subtract function and Add for the blue? In the video you are using Add for the red and Subtract for the blue. I ask because you had 1.4 set as the red IDR and 1.5 for the blue. Maybe I'm not understanding how the Math node works.
Thank you so much for this tutorial. It is a very nice shader. But please note at the end the math nodes feeding the Refraction BSDF IOR values are wrong... the red IOR should be set to subtract (not add) and the blue IOR set to add (not subtract) because in glass/crystal/ice the red IOR is lowest and the blue IOR is highest.
Hey there! Thanks for trying to improve the shader, but what you are talking about is the wavelength of the light that is going through the medium. You're right, red is lower than blue on that scale, but the index of refraction (IOR) has nothing to do with that fact. The way the colors are produced are controlled by the shape and physical attributes of the object, more than light wavelength itself, which is why sometimes you get disperion that is yellow and purple, rather than red and blue. So really, which way you plug it is personal preference and won't change the outcome too much, especially not the physical correctness of the shader, so don't worry :D But you can of course do it your way, just make sure not to mix up those 2 things, since they are somewhat connected, but not in the way that you think they are
Attempting to reproduce exactly in 3.4 ends with an opaque green material, Seems to lie within the subtraction/addition nodes as removing these gets close to the desired affect
Great tutorial, but I'm wondering what your sampling and light bounce settings are as I've used this exact same shader setup for my glass but I'm still getting noticeable noise no matter how many samples and bounces I set.
That really depends on the scene and your other settings. I find about 1024 samples for a still image to be enough for the denoiser at 4k resolution When rendering glass, I always set my glossy rays to 32 at least :) Can you tell me the resolution you're working with? It really matters, because the higher it is the more information the denoising algorithm gets, so that can help you a lot. Try doubling your resolution and then devide the amount of samples by 4 That should give you the same render time, but better results :)
It helps, but generally, even in engones like luxcore or octane, enabling dispersion tends to bump up render times and generally make the glass noisier So really, try to fiddle around until it sticks As I said, doubling the resolution and dividing the samples by 4 always seems to do it for me, in the end, you can always just resize the image down to what you needed originally :)
You're welcome :) if you need help with anything make sure to join the discord server linked in the description, we've got lots of members ready to help each other
Sadly not, it is really hard to get good looking glass in Eevee I definitely have some shaders made that look better than the standard glass bsdf, but obviously when I make a tutorial, I want it to be as close to perfection as I can get it So you might have to wait a little for it but once I figure it out, it'll look really good :)
@@philipkriegel Ah! I am delighted and sad at the same time, but definitely understand the effort. It's true, eevee needs much more work for things to look good. The SSGI re-write for "eevee next" with 3.3 looks promising and I hope it'll make things easier. In any case, you are absolutely amazing and I can not wait to see what you'll do next! ^.^
I have recently been inspired by blenders native caustic system Since I wasn't really satisfied with the results I'm getting and the limitations, I chose to make my own node setup that will resolve the native limitations with shorter render times But I have yet to flesh out some minute errors before I can call it done, I'll upload it soon though
@@philipkriegel Sounds like you are experiencing quite a lot with blender (as one should). Very exciting times ahead then. One of the hardest difficulties in eevee, I find, is skin shading, shadows, and glass. If they ever manage to make that better, there's really no telling how far eevee will go in comparison.
I rarely use Eevee to be honest. Most of the stuff I do is done in Cycles. I like experimenting with nodes and that isn't always very intuitive with Eevee. Of course eevee is a lot faster and can get good looking results, but it's simply not worth it for me to trade years of experience over fiddling with eevee until I just kinda get what I wanted. But I think unreal engine has quite good looking glass right now, and character shading is also really nice. Over all, I like Cycles because it's simple and it just works 100% of the time But of course, someone who is more imvested in eevee could get production grade value out of eevee, it's just that I don't know how and never got invested in learning it
with blender 3.4 for some reason my caustics turn only red or green or blue depending on what color I'm adding first. Can't understand if it's a bug or i'm doing something wrong
It's a little hard to explain via text, there are a few tutorials on that sort of glass online, but here are some basics: - import a circle with 8 vertices - subdivide the edges so you get a vertex in the middle of each edge and bevel them so they are close to the initial vertices of the octagon - extrude upwards to the height of three octagonal part of your mesh, then do it once more to the height of your indents on the top - use the loop tools add-on (circle option) to make it perfectly round and extrude to get the rest of the glass and you're basically done Note that I am not a good author so you are probably best off watching a tutorial either way, because my written explanations tend to leave more questions than answers behind :)
Then perhaps you have not connected something right or you might be using Eevee, I have used this shader on multiple occasions, yet have never found it to showcase any specific issues, especially not regarding shadows
Hi, Would you happen to have a tutorial, or point me in a direction for how you modeled the glass on the right? I'm doing a similar glass (a shot glass) and haven't figured out a good approach.
Man, this is so cool! Only I have been fighting with caustic shadows for two days already! I made a caustic using the new Blender 3.2, but the caustic itself is red! As an experiment, I changed colors in the RGB sequence, and in this case the caustic turns out to be the color that is the first in the sequence. Please tell me how to apply shadow caustics to this glass?! Because it would be very cool if such a beautiful glass cast realistic shadows with caustics! Thank you!
If you're talking about the advanced glass shader from the viseo I made a while back, it's actually pretty easy You just need to add another add shader and place it all the way in the back, connect the red refraction node to it and then create another refraction node, make it white and place it in the top input of the add shader :) Make sure to tweak the brightest of your other colored refraction nodes so the glass isn't too bright and you're good to go, you can do that by eye, just make sure they all have the same brigthness
@@philipkriegel unfortunately by doing this the caustic will no longer be affected by the absorption cloror, now I have a blue glass with a white caustic sigh
At 6:00 you mention that the setup shown is the same as the glass BSDF. This is the second time I've heard that, and while it's believable, I'd like to know more. Is this recorded somewhere in blender docs? is this a rumor passed on from blender user to blender user? What's going on here behind the scenes and how did you find out? If this is common knowledge, I'd be very interested to know if you have a source - it's likely a valuable resource! Thanks anyways for the vid. It's great to see another method on this technique.
Hey Jack, So basically every bsdf node in blender resembles a basic physical property shown in real life objects, be it the ability to refract light, reflect it, scatter it uppon impact etc... So what do in blender is more or less analyze what an object looks like, see which traits it has and then we try to recreate it using the same properties in blender. For instance for paper, you could use a diffuse BSDF + glossy BSDF + subsurface scattering, combine them using mix shaders and a fresnel node and then you just adjust the values until they fit You up the rougness for instance on the glossy node so it's less shiny and increase the subsurface scattering so light shines through it (also would work with a translucent BSDF node) So by that logic, it's easy to assume, that glass is just a refraction BSDF + glossy shader because because it only refracts and reflects light They share the same indeed of refraction because that is the only thing that is physically plausible This is basically how we used to do all of the our shading before blender 2.79b (when the principled BSDF got implemented) A lot of it is just thinking about the basic function of a material, but there is also some learning by doing + trial and error involved As far as I know there is no real documentation on that subject, but I also didn't check in great detail, should you need anything, I'll always be glad to help though!
Can you send me a screenshot on discord of what is happening? Also have you connected the gloss shader yet? Maybe your normals are inverted, try going to edit mode and selecting everything Then press shift+N and see if it is still like that
Hi! Your tutorials are very amazing, but I must be a bad student. I have a question about this dispersion glass topic. I did everything as in this tutorial, but I didn't get a soft and realistic dispersion like you did. My dispersion came out hard and bright, I really want to take away the sharpness and saturation of the colors of the dispersion, how do I do that?
Hey there! Usually it works equally well on all meshes, perhaps you could send me your blend file on discord or via email so I could check what the issue is :)
Tutorial is super helpful, but there's a couple things I'm baffled by- where is the mottling texture on your glass coming from? Also did you change the lighting? I followed along, my result is nice but not quite this nice
It's just the lighting from the HDRI. The texture you're referring to is just the background being refracted by the mesh, when rendering glass topology is really important for the final look of refractive objects.
Yes, the thickness of the glass is just as important in 3D as it is in reality. When it comes to path teaching, the render engine tries to simulate reality as closely as possible with all of it's variables, so it's generally a good idea to stick to real world measurements when making a model so everything reflects and refracts as expected
Check if your glass has a realistic size and if your scale is applied. Perhaps your dispersion is too high, try lowering that value to get a better suiting result
I'm not gonna say that blender is the easiest 3D program to use But it's definitely the easiest production-ready program Compared to autodesks alternative, blender is a breeze to learn :D
Absolutely fantastic tutorial! Thanks so much for sharing
Excellent shader and very well explained!
This looks amazing. And your skills with nodes in Blender are impressive.
Thank you, I'm glad you liked it :D
I like how you take into consideration the situations and usage we might need out of these shaders. Thanks for the deep explanation!
You're welcome, I'm glad you enjoyed it! :)
Octane: "increase the dispersion level, as you wish" Lol.
Great tutorial - like the pace you work at as it's easy to follow without being too slow. I will forever call the colour amount 'Steve' from now on! Keep up the good work!
Steve for the win!
Thanks, I'm glad you enjoy the pace, I always hated it when people rushed a tutorial, I think learning takes tame and understanding :D
This is the way! Thanks a ton for sharing
This is excellent. Thank you.
Thanks! One of the best explanations for this. You got new sub :)
Nice result. Thanks
great tutorial, thank you!! i wasn't expecting the difference to be too significant but that comparison at the end really sold it for me. super impressive effect :) ! long live steve
#AbsorbtionSteve! I'm glad you liked it :D
Wow that is a killer node tree you got going there...thank you for sharing
Amazing. Was looking for this several months ago, but so happy to see this now. Super straight forward, reallly well done!!
insta sub!!!
Thank you so much! I'm glad you enjoyed this :D
Best glass tutorial to date.
Thank you. Great struff
this is disgustingly good, thank you!
Thank you so much, it's worked!
This is amazing.
Thanks for this, I used to always just add a glass BDSF and set the ior up a bit lol.
Beautiful. Thank you.
I'm glad you liked it!
Thank you, make huge difference comparing to standard glass effect in blender in my opinion, very good tutorial 🤝
Thank you, I'm glad you liked it!
Svaka cast...Vidi se tvoj napredak...
majestoso! obrigado demais!
Danke Philip! sehr entspanntes Video!
Gerne! Danke für's Feedback :D
Thanks ❤
cool glass tricks thx
Thanks !
This is really cool indeed
Thank you!!! Just subscribed...
Great tutorial and really well explained. Thanks Philip - looking forward to more of your vids
I'm glad you liked it!
@@philipkriegel Would love to know how to extend these refractions into the shadows (like how like goes through cut glass) Is that an easy adjustment to the shadow ray?
I have a tutorial on custom caustics which is probably what you are looking for, feel free to check it out, it's fairly easy to do once you see the setup!
@@philipkriegel On my way!
omg this is super helpful and really easy to understand, thank you so much!
I'm glad you enjoyed the tutorial :D
It also helps alot that you are explains the physics and the wayworking of each nodes also! Thank you so much fo the tut and keep up the awesome work!!!
You are one of hell good artist, thanks a lot
Thank you!
I'm glad you liked it :)
Mega gut. Danke
Gerne :)
OK using the math node to specify refraction count was actually really cool
realy realy good
Awesome tutorial. I can only imagine how much trial and error this must have took. I'll be using this madlad for glass of all kinds going forward (minus windows)
Nice! You should make a blender using this glass.
Great tutorial, can you tell me the hdri you used for this?
this looks awesome will try it out on diamonds to render jewelry. thanks ❤️
You're welcome!
The average IOR for diamons is 2.418
Make sure to change that from the standard 1.45 to get the best results :)
@@philipkriegel ya i surely will, thanks!
I'm trying to make a glass for picture frame. I hope I can find the answer here. Thanks for the tutorial.
Amazing tutorial, find this when I'm struggling to make to good looking class, keep up the good work! Any plan for lighting tutorial as well?
I don't plan on making any lighting tutorials since I need to still become better at it myself, but once I'm on a more confident level, I'll cover that as well :D
I compared this with a 1 minute tutorial and yeah it's worth every second to put in the effort to include dispersion.
Sehr nice, danke Philip !
Immer gerne, Kasbär! :D
@@philipkriegel Du bist ja ein Glas Experte. Hättest du Mal Lust ein Video zu machen, wie man "antique Glas" in blender machen kann ? Also mit der schönen Reflexion?
Ich habe mich gestern dumm und dämlich herumprobiert.
Das macht so gut wie keinen Unterschied wie alt das Glas ist. Wenn du Probleme mit der Spiegelung und der Lichtbrechung hast, dann liegt es vermutlich daran, dass dein IOR falsch eingestellt ist. Darauf ankommend aus welcher Zeit das Glas kommt, wurde vermutlich eine andere Form von Glas benutzt, die haben alle einen anderen Lichtbrechungsindex.
Hier ist eine Seite auf der du viele verschiedene Optionen gelistet bekommst, unter der du bestimmt auch dein Wunschglas finden wirst: pixelandpoly.com/ior.html
ansonsten, wenn du weiterhin Probleme damit haben solltest, kannst du mir gerne Privat auf Discord schreiben und mir die Datei senden an der du arbeitest, ich helfe dir gerne weiter :)
@@philipkriegel oh ja sehr gerne, wie ist denn dein discord Tag ?
Ja ich meine mit antique Glas nicht unbedingt altes Glas. So heißt die Art von Glas. Kannst ja Mal googlen. Das Glas hat eine ähnliche Reflexion wie Wasser auf dem Meeresgrund.
Philip Kriegel#4553
Das ist der Tag
kannst es mir gerne schicken, ich schaue es mir dann nach der Arbeit oder in meiner Pause an :)
du findest aber auch meinen Discord Server in der Videobeschreibung
Absolutely brilliant. Extremely technical but the results are worth it. Would you do anything differently if you wanted to put an object inside the glass? I don't mean liquid, perhaps a metal spoon, or a toy or something
No, this setup pretty much works for all use cases
Just make sure that your solid object doesnt intersect with the glass itself since that will always create weird results, no matter what shader you use
Instead of me adding all those nodes and since glass is basically glass everywhere on planet Earth, I wonder is there a way to download your glass setup? The basic glass node just looks like chrome reflecting the environment with no real transparency. Maybe someone has this online somewhere if you don't. very nice results. Would be good for some closeup subjects, as you said.
THis is awesome! DO you think I could use it to make stained glass windows refracting colored light in the floor of a space? Thanks for your node magic.
Yes! That's a cool idea and you could totally do that! :D
Should the Math node to the red Refraction BSDF node use the Subtract function and Add for the blue? In the video you are using Add for the red and Subtract for the blue. I ask because you had 1.4 set as the red IDR and 1.5 for the blue. Maybe I'm not understanding how the Math node works.
superlike!
I'm glad you liked it :D
@@philipkriegel amazing work man! keep em coming!
How do you make right side glass?
Thank you so much! But what's the reason why it's dark and opaque, not transparent material?
It's not supposed to be dark, you either didn't connect something the way it's supposed to be, out you might be using Eevee
What's the hdri used here?
Would appreciate if you could make a tutorial on how to make a photosphere effect in blender (glass sphere where the camera is taking a shot)
Do you mean something like this?
ae01.alicdn.com/kf/Hbec9e8d8cde9456596fbf938844bfd64u.jpg_640x640Q90.jpg_.webp
Thank you so much for this tutorial. It is a very nice shader. But please note at the end the math nodes feeding the Refraction BSDF IOR values are wrong... the red IOR should be set to subtract (not add) and the blue IOR set to add (not subtract) because in glass/crystal/ice the red IOR is lowest and the blue IOR is highest.
Hey there!
Thanks for trying to improve the shader, but what you are talking about is the wavelength of the light that is going through the medium.
You're right, red is lower than blue on that scale, but the index of refraction (IOR) has nothing to do with that fact. The way the colors are produced are controlled by the shape and physical attributes of the object, more than light wavelength itself, which is why sometimes you get disperion that is yellow and purple, rather than red and blue. So really, which way you plug it is personal preference and won't change the outcome too much, especially not the physical correctness of the shader, so don't worry :D
But you can of course do it your way, just make sure not to mix up those 2 things, since they are somewhat connected, but not in the way that you think they are
Attempting to reproduce exactly in 3.4 ends with an opaque green material,
Seems to lie within the subtraction/addition nodes as removing these gets close to the desired affect
Great tutorial, but I'm wondering what your sampling and light bounce settings are as I've used this exact same shader setup for my glass but I'm still getting noticeable noise no matter how many samples and bounces I set.
That really depends on the scene and your other settings.
I find about 1024 samples for a still image to be enough for the denoiser at 4k resolution
When rendering glass, I always set my glossy rays to 32 at least :)
Can you tell me the resolution you're working with?
It really matters, because the higher it is the more information the denoising algorithm gets, so that can help you a lot.
Try doubling your resolution and then devide the amount of samples by 4
That should give you the same render time, but better results :)
I have the same issue. Switching to the OpenImageDenoiser on the Accurate setting seems to help.
It helps, but generally, even in engones like luxcore or octane, enabling dispersion tends to bump up render times and generally make the glass noisier
So really, try to fiddle around until it sticks
As I said, doubling the resolution and dividing the samples by 4 always seems to do it for me, in the end, you can always just resize the image down to what you needed originally :)
verrrrrryyyy interesting ❤
I'm glad you enjoyed it!
@@philipkriegel yes, light with transparent object is a hard topic. I saw that you got other videos about. So that's cool. Thanks for sharing
You're welcome :) if you need help with anything make sure to join the discord server linked in the description, we've got lots of members ready to help each other
Absolutely loved this.
It leaves me wondering: Do you, by any chance, have a good glass shader for eevee, too?
Sadly not, it is really hard to get good looking glass in Eevee
I definitely have some shaders made that look better than the standard glass bsdf, but obviously when I make a tutorial, I want it to be as close to perfection as I can get it
So you might have to wait a little for it but once I figure it out, it'll look really good :)
@@philipkriegel Ah! I am delighted and sad at the same time, but definitely understand the effort. It's true, eevee needs much more work for things to look good. The SSGI re-write for "eevee next" with 3.3 looks promising and I hope it'll make things easier.
In any case, you are absolutely amazing and I can not wait to see what you'll do next! ^.^
I have recently been inspired by blenders native caustic system
Since I wasn't really satisfied with the results I'm getting and the limitations, I chose to make my own node setup that will resolve the native limitations with shorter render times
But I have yet to flesh out some minute errors before I can call it done, I'll upload it soon though
@@philipkriegel Sounds like you are experiencing quite a lot with blender (as one should). Very exciting times ahead then.
One of the hardest difficulties in eevee, I find, is skin shading, shadows, and glass. If they ever manage to make that better, there's really no telling how far eevee will go in comparison.
I rarely use Eevee to be honest.
Most of the stuff I do is done in Cycles.
I like experimenting with nodes and that isn't always very intuitive with Eevee.
Of course eevee is a lot faster and can get good looking results, but it's simply not worth it for me to trade years of experience over fiddling with eevee until I just kinda get what I wanted.
But I think unreal engine has quite good looking glass right now, and character shading is also really nice.
Over all, I like Cycles because it's simple and it just works 100% of the time
But of course, someone who is more imvested in eevee could get production grade value out of eevee, it's just that I don't know how and never got invested in learning it
when i do RGB the glass looks pink
Would have been great if in the title it was written "Cycles". I cannot find any Lights Paths settings.
Other than that, great tutorial
with blender 3.4 for some reason my caustics turn only red or green or blue depending on what color I'm adding first. Can't understand if it's a bug or i'm doing something wrong
I can make the tall glass, but how did you manage the other one that starts as an octagon and changes to a round top?
It's a little hard to explain via text, there are a few tutorials on that sort of glass online, but here are some basics:
- import a circle with 8 vertices
- subdivide the edges so you get a vertex in the middle of each edge and bevel them so they are close to the initial vertices of the octagon
- extrude upwards to the height of three octagonal part of your mesh, then do it once more to the height of your indents on the top
- use the loop tools add-on (circle option) to make it perfectly round and extrude to get the rest of the glass and you're basically done
Note that I am not a good author so you are probably best off watching a tutorial either way, because my written explanations tend to leave more questions than answers behind :)
@@philipkriegel can you please make a tutorial of that? pleaseeeeee
I just posted it :D
Nice!! Very Nice! What about Caustics (refelctive/refractive)?
Hey there! Glad you liked it!
I got that covered in here too :D th-cam.com/video/PhOmBbiC0tM/w-d-xo.html
@@philipkriegel I already found it! Thank You!
Awesome tut! Next, solve the shadow issue.
What shadow issue? There is no issue with the shadows, perhaps you could explain the issue you're facing?
@@philipkriegel Casts a solid shadow.
Then perhaps you have not connected something right or you might be using Eevee, I have used this shader on multiple occasions, yet have never found it to showcase any specific issues, especially not regarding shadows
Hi, Would you happen to have a tutorial, or point me in a direction for how you modeled the glass on the right? I'm doing a similar glass (a shot glass) and haven't figured out a good approach.
Yeah I have one on my channel. It's the Pokal glass tutorial, you should be able to find it easily when scrolling through
@@philipkriegel Found it! Thank you!
Great tutorial, i really like the music chosen as i think making glass on blender is quite dramatic
Man, this is so cool!
Only I have been fighting with caustic shadows for two days already!
I made a caustic using the new Blender 3.2, but the caustic itself is red!
As an experiment, I changed colors in the RGB sequence, and in this case the caustic turns out to be the color that is the first in the sequence.
Please tell me how to apply shadow caustics to this glass?!
Because it would be very cool if such a beautiful glass cast realistic shadows with caustics!
Thank you!
If you're talking about the advanced glass shader from the viseo I made a while back, it's actually pretty easy
You just need to add another add shader and place it all the way in the back, connect the red refraction node to it and then create another refraction node, make it white and place it in the top input of the add shader :)
Make sure to tweak the brightest of your other colored refraction nodes so the glass isn't too bright and you're good to go, you can do that by eye, just make sure they all have the same brigthness
@@philipkriegel
Yes!
It works!
A bit difficult for a beginner, but I did it!
Thank you so much!
You're welcome :D
What version is this blender?
@@philipkriegel unfortunately by doing this the caustic will no longer be affected by the absorption cloror, now I have a blue glass with a white caustic sigh
At 6:00 you mention that the setup shown is the same as the glass BSDF. This is the second time I've heard that, and while it's believable, I'd like to know more. Is this recorded somewhere in blender docs? is this a rumor passed on from blender user to blender user? What's going on here behind the scenes and how did you find out?
If this is common knowledge, I'd be very interested to know if you have a source - it's likely a valuable resource!
Thanks anyways for the vid. It's great to see another method on this technique.
Hey Jack,
So basically every bsdf node in blender resembles a basic physical property shown in real life objects, be it the ability to refract light, reflect it, scatter it uppon impact etc...
So what do in blender is more or less analyze what an object looks like, see which traits it has and then we try to recreate it using the same properties in blender.
For instance for paper, you could use a diffuse BSDF + glossy BSDF + subsurface scattering, combine them using mix shaders and a fresnel node and then you just adjust the values until they fit
You up the rougness for instance on the glossy node so it's less shiny and increase the subsurface scattering so light shines through it (also would work with a translucent BSDF node)
So by that logic, it's easy to assume, that glass is just a refraction BSDF + glossy shader because because it only refracts and reflects light
They share the same indeed of refraction because that is the only thing that is physically plausible
This is basically how we used to do all of the our shading before blender 2.79b (when the principled BSDF got implemented)
A lot of it is just thinking about the basic function of a material, but there is also some learning by doing + trial and error involved
As far as I know there is no real documentation on that subject, but I also didn't check in great detail, should you need anything, I'll always be glad to help though!
anyone reading: if the glass looks broken and glitched out in cycles mode check if theres mistakes in the faces duplicating etc
After connecting R G & B refractions via add shader I get black glass
Can you send me a screenshot on discord of what is happening?
Also have you connected the gloss shader yet?
Maybe your normals are inverted, try going to edit mode and selecting everything
Then press shift+N and see if it is still like that
Hi! Your tutorials are very amazing, but I must be a bad student. I have a question about this dispersion glass topic. I did everything as in this tutorial, but I didn't get a soft and realistic dispersion like you did. My dispersion came out hard and bright, I really want to take away the sharpness and saturation of the colors of the dispersion, how do I do that?
Hey there!
Usually it works equally well on all meshes, perhaps you could send me your blend file on discord or via email so I could check what the issue is :)
@@philipkriegel Ок). Thanks!
Looks incredible! but in the other hand 25% render time it's quite much... isn't it?
Sure it's a lot, I wouldn't recommend making animations with this setup, but this is made for quality, not quantity
How to combine this node with surface imperfections? like smudges or water droplets etc
You use the same inputs as with the principled bsdf
Roughness for rougness maps and normal for normal/bump maps
Thank you :)@@philipkriegel
Tutorial is super helpful, but there's a couple things I'm baffled by- where is the mottling texture on your glass coming from? Also did you change the lighting? I followed along, my result is nice but not quite this nice
It's just the lighting from the HDRI.
The texture you're referring to is just the background being refracted by the mesh, when rendering glass topology is really important for the final look of refractive objects.
@@philipkriegel Does the thickness of the glass in the model play a role like it would in reality? I think my glass a few mm too thick but not sure...
Yes, the thickness of the glass is just as important in 3D as it is in reality.
When it comes to path teaching, the render engine tries to simulate reality as closely as possible with all of it's variables, so it's generally a good idea to stick to real world measurements when making a model so everything reflects and refracts as expected
How to bake yexture for this glass objects😢
What texture do you want to bake?
what to do if we have to put a PNG image on the glass?
Here's a video covering just that: th-cam.com/video/CqIreB3VZ-k/w-d-xo.html
I don't suppose you can share the hdri?
Sure can, that's it: polyhaven.com/a/kiara_interior
@@philipkriegel thanks
Looks good on your model. But on my whiskeyglass it doest work as good. The green blue and yellow are very visual and it doesnt look good
Check if your glass has a realistic size and if your scale is applied.
Perhaps your dispersion is too high, try lowering that value to get a better suiting result
@@philipkriegelokay I will check, I'm amazed by the fast answer!
@@philipkriegel It worked Thanks! I lowered dispersion to 0.010 and now its perfect. It might be too low but Im satisfied.
never seen so much complicated combines for a simple glass shader
blender wtf
I find the software everything but intuitive 🤯
I'm not gonna say that blender is the easiest 3D program to use
But it's definitely the easiest production-ready program
Compared to autodesks alternative, blender is a breeze to learn :D
THERE IS NOTHING LEFT TO ASK ALL ARE INDEED FOUND IN THIS TUT... KUDOS...
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