How to Make Meshes with Python in Blender!
ฝัง
- เผยแพร่เมื่อ 19 มิ.ย. 2024
- Talking about constructing meshes with Python in Blender.
Watch my crash course: • Python Crash Course fo...
Visit my website: curtisholt.online/
Visit the Sketchfab store: sketchfab.com/store
USEFUL LINKS:
==========
Intro to Coding: • Introduction to Coding
BMesh Documentation: docs.blender.org/api/current/...
CHAPTERS:
==========
00:00 - Intro
00:36 - Main Data Types
01:44 - Accessing Object Data
02:27 - Getting Vertices
02:56 - Getting Edges
05:02 - Get Vertex From Edge
05:46 - Vertex Counts For Faces
06:26 - Getting Faces
06:54 - Creating Vertices
07:27 - Creating Edges
09:58 - Skin Modifier Tip
10:59 - Creating Faces
11:26 - Building the Mesh (pydata)
14:23 - BMesh
14:40 - Final Thoughts
15:19 - Sponsor (Sketchfab)
15:51 - Outro
Social / Discord and Store Links:
curtisholt.online/links
#blender #tutorial #python
Dating myself here a bit, but... This oddly takes me back to the mid 80's when I got my first view at creating computer graphics, plotting out X,Y coordinates, setting radius, and, you have a circle! Thanks for this Curtis, looking forward to more.
And DBW Render took that into three dimensions on the Amiga. Heady days, those... scan-lines creeping across the screen... cooling fans ruffling the curtains... pixels baking in an A1080 CRT... and the inevitable crash, sigh, and hope you God you saved the file before hitting render.
No I'm not afraid of code, I'll watch 😂
Best Programming tutorial for blender till now! Excellent Work Curtis!
This is a wonderful beginner series!! 💯
Thanks a lot for these Python videos. I know they are a bit old now, but they are very helpful. I'm trying to use Blender for math visualization for education purposes. There's a lot of stuff I want to automate, and I think once I get the hang of things, scripting is going to be very handy. I'm having a really hard time trying to figure out how to access and manipulate the data that I want through scripting. This and your "Crash Course" scripting video were very helpful and I'd definitely watch more of these if you ever start them up again.
loving the content, please keep the programming series coming
Thanks for the great tutorials Curtis :-)
Please keep up these tuts, they're excellent
Great, thank you very much!
For me it only worked when I replaced
col = bpy.data.collections.get("Objects")
with
col = bpy.data.collections.get("Collection")
(I use Blender 2.90.0)
Yes, that's just you specifying what collection you want to use. In my scene, I had a collection called 'Objects', so that's what I used :)
@@CurtisHolt Ah, yes I see! So I just had to look at the name of the collection on the top right of the screen (in my case it was 'Collection' by default already), which makes a lot of sense. I was thinking about some default from the bpy library, but of course it is linked with the current state of the scene!
Thanks a lot for your tutorials, I just got started with Blender and I am amazed by what I can do with it :)
@@CurtisHolt That's why I couldn't get it to work!!! ;)
Ohhh, so this was a string based thing - no wonder mine wasn't working either - MVP comment
Nice and clear explanations! You've made a very good work here, thank you it was really helpful. Now I can summon meshes from csv datafile as data curves and visualize them as surfaces that I can split with animated planes to really get some grip on what's happening in my process!!! Nothing of this would have been possible without first understanding how to create the mesh so a googol of thanks to you sir! :) :) :)
I love these python tuts.
Good one.
Many Thanks for sharing your knowledge.
This will probably change my life (for the better). Thank you sooooo much :D
Thanks for sharing this!
Great explanation! Ty man
This is super useful man!
I know that it may not be the fancy shining side of blender but you are helping us unlock the real potential of this wonderful tool.
What sources do you suggest to dive deeper into scripting for blender and getting familiar with APIs?
Keep pushing on this and thank you again
Awesome! Thank you so much. I was wondering how to do this.
More videos about Python in Blender, please!!!
Great content!!!
Code is what I do all day 😂
Thank you so much for the great tutorial
I was waiting for this!
Great video! Please keep on making Python in Blender vids! Thank you.
Thank you for sharing !
Brilliant. Thanks!
Great work👏👏👏
greate explanation! thank You!
high quality stuff!
yay curtis is back!!!!!!
👋😄
Hey Curtis, thanks for the tutorial - really helpful!
Have you considered keeping such videos at 30fps? IMHO 60fps doesn't add anything, and just makes playback more resource-intensive (i.e takes more bandwidth & makes my potato PC stutter). I do appreciate the big text, but text can always use more resolution to make it sharper, and right now I can only watch it in blurry 480p
Love how you show the code AND explain it, now i can make more of my own code and not copy tutorials all the time.
however i still cant get any of this code to work
Great tutorial series, I'm just a bit confused about this one (Im using Blender 3.2)...at 2:12, is that something we do at the start, before we start appending to vertices and edges? Because around 7:37 I don't get a new edge. How does the edges array know anything about the verts array indices? Also nothing from my script prints to my console. Everything in the previous intro tutorial worked perfectly.
Really really thank you for your kind teaching
But I have a question I want to make parametric surface in specific boundary
So I want to make vertices set 2 dimension , vert[i][j]
How to make it??
Nice one! Thank you again. One question, when adding modifiers to an object, can we select or get any new verts or data? I mean for example a bevel modifier on verts. Will create new faces. Can I access the data from that new faces?
knowing how blender works normally, no. You will need to apply them before having access to this.
It's a really nice tutorial, great style, pacing and explanations. But I'm missing some crucial information. How do I write points to an existing mesh for example?
I know this is outside the scope. But I'm trying to create a script to select the closest vertices in a mesh to a second mesh selected vertices. I cannot use the closest point on mesh function in BLender 2.8 (maybe they change it). Maybe you know a way I could work around it?. I appreciate any help you may provide that points me in the right direction.
So can I model an object and then print out that info to use for a new mesh?
hi there
I love your work . concise information to the point.i want to ask please tell me to develop how to develop core computer graphic library.python is all about to use library in backend.even in face builder add-on has core library in c .so please help me so that i can start coding .
We need more of python for blender tuts.
非常感谢😂
I cant apply vertices coodinations to the list, if I don't write a Plus in front of the bracket.
vert.append([1
+(v.co.x),
+(v.co.y),
+(0.0)
])
why ist that? I cant't use it like that, because the X coordinate of the second point allways ends up beeing 0. I think it tries to calculate the same negative value with it's positive counterpart.
Thanks for this tutorial Curtis.
But I got lost. In the first Part of the video, before 06:54, we were just exploring what vertices are in an object
After 06:54 is the actual vertices creations ? The lists created are just lists: not linked to bpy or the active_object
verts = []
edges = []
faces = []
so.data.vertices.append gives an error: AttributeError: 'bpy_prop_collection' object has no attribute 'append'
How we actually gives those lists with those coordinates to bpy ?
Also I don't understand how edges.append([0,1]) it's not linked to verts
Sorry if the solution is in your previous coding videos, but I did watch them and still can't figure it out
This video is showing you how to access the mesh data from a pre-existing object, and create a new object from scratch, not how to add new mesh data to a pre-existing object.
After 6:54, I begin showing you how to create a mesh from scratch which begins by creating lists of data which will eventually be passed to mesh.from_pydata (11:29), to actually create the mesh.
What is Mesh.loops and why do we need they?
If I have created a rectangle and I want to orient (bending) in their middle with an angle, Can I do this with Python in the blender?
@@viveksachan11 Can you help me how can bending a rectangle with angle?
for me, it went wrong with "AttributeError: 'BlendData' object has no attribute 'collections'"
what blender version is this? (I'm trying here on blender 2.76b)
Sir,how to create a backdrop in 3d view with python?
Sir please help me
Hi great tutorial 😋 but i have a question:do i really have to use python in blender. like i really don't see the importance of using it can you tell me what can i make only with python.
The reason I'm learning scripting is so that I have more control over procedural animations. Right now I'm trying to make a spirograph type animation where I have some line segments linked to each other that rotate and move around in 3D space. I want the endpoints of the rotating segments to draw a curves as they move through space. I'm finding it very hard to automate this using Geometry Nodes and it seems like scripting is going to be the best solution.
Python: File "\Text", line 1
vertices*
^
SyntaxError: invalid syntax
location: :-1
I am facing this error what should i do?
Am I right in thinking that bmesh is faster than bpy.data.meshes ????
Is there a way to set a different color for the edge of a cube? 🙄
Very Interesting. But surely the order of the Vertices in declaring a Face is important is it not ?
Typically in 3D modelling the order of Vertices, associated with a face defines the front/ back face directions. So if you want to see the face, avoid it becoming a back face, you would need to order the Vertices in a Clockwise form the perspective of a viewer looking at the front face.
sir show full code,,im stuck from where to start
For people who can't be arsed to copy everything:
import bpy
verts = []
edges = []
faces = []
verts.append([0.0,0.0,0.0])
name = "New Object"
mesh = bpy.data.meshes.new(name)
obj = bpy.data.objects.new(name, mesh)
col = bpy.data.collections.get("Objects")
col.objects.link(obj)
bpy.context.view_layer.objects.active = obj
mesh.from_pydata(verts, edges, faces)
ChatGPT + Python + Blender ❤
nice video, not impressed with the blender's python API design so far, but maybe it will grow on me.
0:00 what do you mean who is allergic to code
Heads up for anyone who is confused. Print() only outputs to the system console which is stupidly only available in that windows trash.
I am not afraid of this coding shit....I'll watch this.
1:45 😄😄😅😅imma head out .............
making this a engine features ingame where money
First
Rates of infection. [This is a meme, values aint accurate]
Standing 1cm apart: 100%
Standing 1m apart: 50%
Standing 2m apart: 10%
Like Programming?: 0%
Son... Are you.. are you Coding??!
Ah! No mom I swear. I was just watching porn.
Binod
this video must be 18+
This is awesome, but impossible to focus due to stupid background sounds!
Not sure if I typed something incorrectly but I'm using Blender 3.3 and at 11:30 it was not working for me to define col = bpy.data.collections.get("Objects"). It was giving me an error in the next line when trying to link.
I fixed it by replacing the command above with col = bpy.context.collection instead.