Questions tagged [vertex-colors]

Vertex colors are color values that can be stored with each vertex in a mesh. This tag is for anything related to them.

Filter by
Sorted by
Tagged with
1 vote
0 answers
128 views

How to export .x3d file(frp, paraView) as FBX with colour?

I am trying to export my .x3d model to FBX with the ultimate goal of importing to unity. The model has colours stored as vertex paint, so initially the model is white. When I add a colour attribute to ...
3.14159's user avatar
  • 11
0 votes
0 answers
172 views

How to set vertex color to selected faces in python?

I want to set vertex color to selected faces. ...
Karan's user avatar
  • 1,879
0 votes
0 answers
307 views

Where can I change the default value for vertex color attribute?

I am currently trying to see if I can make a change to the blender code to allow me to have a default value of the vertex color attribute to (0,0,0,0) instead of (1,1,1,1) when I create a primitive ...
Jamie's user avatar
  • 1
0 votes
1 answer
145 views

Why do Vertex paint colors look pixelated?

I'm trying to color the vertices of an object. I have list of values like this: values_list = [0.1, 0.5, 0.2, 0.4, etc...] which means the vertex with index 0 has a ...
manuersuper's user avatar
2 votes
1 answer
4k views

How to export vertex colors

this is a follow-up to this other question. I now have a mesh with vertex colors applied as attribute inside the Object Data Properties. I have tried to export this mesh into various formats, ...
zbigniew's user avatar
0 votes
1 answer
502 views

How can I confine vertex colors to specific faces in Blender 3.2.2?

Crash Bandicoot is famously colored almost exclusively using vertex colors, but if you look at his PSX model you can see that certain faces that share vertices are not gradients. Instead, there is a ...
slkdjfaosidfua0s9dfua0's user avatar
0 votes
0 answers
94 views

How can I preserve crisp lines on my mesh with a low res texture, but still overlay details?

I'm going for a PS1/Sega Saturn look, with a ~500 tri mesh and a 256x256 texture. I want to use the texture to paint details onto the mesh, while retaining crisp lines between faces. However, placing ...
HotDogWaterChugger's user avatar
2 votes
1 answer
589 views

How to get Vertex Color data from multiple objects?

Using Geometry Nodes, is it possible to get the Vertex Colors of two separate objects with the same topology, and mix them? I know mixing of colors can (obviously) be done in the material, but I am ...
Mentalist's user avatar
  • 18.9k
1 vote
0 answers
63 views

How to denoise when baking into vertex color (color attributes)

I've been searching for quite a while for a solution for this but haven't been able to find anything. As part of custom level making for the PC port of jak and daxter, the vertex colors are used as ...
Kuitar's user avatar
  • 11
0 votes
2 answers
460 views

Accessing and modifying vertex color in geometry nodes

so I am pretty new to geometry nodes and I´m kinda stuck. I have a mesh with vertex colors (stored in the Col attribute) and I´ve used geometry nodes to add a bunch ...
HTMLwyn's user avatar
  • 35
0 votes
1 answer
381 views

Getting colored point cloud sequence into Blender

I have motion capture data in the form of a colored point cloud that I would like to get into Blender. The export options from the MoCap program are: I have been trying desperately to get the Alembic ...
HelpMe's user avatar
  • 3
1 vote
1 answer
202 views

Vertex Paint NOT based off geometry/ vertices?

I want to vertex paint on a model but when I want to paint a blank face, it does this: I understand Vertex paint uses VERTICES, but where there are smooth faces (and lack of vertices) am I just SOL?
Praxis Visuals's user avatar
1 vote
1 answer
67 views

vertex paint not very efficient in python, blender stops working

Imagine you have the following situation: you want to color the vertices relative to a certain vertex group x in red. I used the following function the problem is that it is not very efficient in fact ...
luke_mcp's user avatar
1 vote
2 answers
2k views

I can't export vertex colors anymore in Blender 3.2

I just upgraded from Blender 3.1 to 3.2 because I was excited about the changes to vertex colors but I've been disappointed to find that none of the exporters support them. Currently I'm exporting a ...
thnewlands's user avatar
0 votes
2 answers
1k views

Getting color at each vertex with python

I wrote this script to put vertexes and their colors into a JSON file for a project I'm working on. I was using this answer to get the colors. Here's the script that I wrote with that. ...
OwenPT's user avatar
  • 1
0 votes
0 answers
178 views

how to export vertex color node in blender?

I export a .fbx file with vertex colors node in blender, then i import the same fbx in blender, but the vertex colors node disappear, i have to add and link the node again, how can i save the vertex ...
bonnie's user avatar
  • 1
1 vote
1 answer
1k views

How to keep vertex colors generated with geometry nodes when exporting to .FBX?

I'm trying to export a mesh with vertex colors generated by geometry nodes but when I export it, it comes out with 100% in all channels. Here's the solution I'm trying to make it work: Make geometry ...
Sjonsson's user avatar
1 vote
1 answer
2k views

Dynamic Paint not showing in Render

I am follwing this tutorial to simulate rain drops falling onto the ground. The drop should make the ground wet. Therefore I am using dynamic paint. In the material the wetmap is plugged into the ...
user123511's user avatar
  • 1,149
4 votes
1 answer
1k views

Geometry Nodes: Face Corner Colors

'Vertex' painting is actually face-corner painting. So per-face colors are possible, can be picked up by an Attribute input node in shader-trees. Here are 2 color-attribute layers on a cube, both ...
Robin Betts's user avatar
  • 74k
1 vote
2 answers
443 views

Map (smooth) vertex group to a vertex color in geometry nodes

I have a vertex group, which was painted using weight paint, called trees. I would like to use it in the shader editor to (smoothly) mix between two shaders. As I ...
sygi's user avatar
  • 504
1 vote
1 answer
966 views

is it possible to detect edges/curvature in blender geometry nodes?

Working on a non-destructive asset (roofing tiles) and I'm trying to use vertex colors to define edges (red vertex color) and curvature (green vertex color) There's meant to be an edge detect node in ...
Faven's user avatar
  • 13
2 votes
1 answer
381 views

Can someone please help me get at the textures of this Sketchfab model?

For reference, the model is here: https://sketchfab.com/3d-models/otto-the-autopilot-7db2b78e311a44ac9b84b1bb6f768413. It's a very nice free model of a classic movie "character", the likes ...
Lizzy L.'s user avatar
0 votes
1 answer
161 views

Dense Cloud col attribute not showing

I'm using metashape agisoft to generate dense cloud from images and I exported the points in PLY and imported to blender. then used attribute named it col to get the original color what calculated by ...
memonto's user avatar
1 vote
1 answer
22 views

What is making the colors on this object?

I've got a 3rd-party payware object that when imported into Blender contains colors that override the applied shader material. Where are these colors coming from? How do I make them go away? I count ...
WilburPost's user avatar
  • 1,035
5 votes
1 answer
491 views

Is it possible to use multiple active vertex colors?

I'm using vertex colors to control features of a material. This works well for one of them, but I'm out of channels and need to handle pigmentation now. The other option is of course using a texture, ...
Michael Macha's user avatar
2 votes
1 answer
1k views

How can I get vertex color on geometry generated with geometry nodes

I am trying to set the vertex color of a generated geometry to output it to a .ply file (and not necessarily having them displayed into the viewport). I can set the vertex color to the original mesh, ...
dhmmasson's user avatar
1 vote
1 answer
2k views

How to output to a Vertex Color on a Geometry-Nodes-generated mesh

Previous questions/answers explain how to output vertex color from Geometry Nodes, but they rely on being able to select a vertex color slot in the Geometry Nodes modifier's Output Attributes: ...
David Wood's user avatar
3 votes
1 answer
869 views

Geometry Nodes: How to iterate a Vertex Color gradient across geometries?

I want the geometry I create in Geometry Nodes to be generated with a Vertex Color gradient that I can use in the object's material. In this example there are several rectangles, one original, and ...
Mentalist's user avatar
  • 18.9k
3 votes
1 answer
137 views

Adding Texture with Weight Paint Doesnt show

I am creating a highlands environment and trying to add a texture of a road by drawing on a plane with weight paint. I have two textures connected into a mix shader with a noise texture, coloramp ...
atkaizer's user avatar
  • 444
1 vote
2 answers
106 views

Vertex Paint - Cornering Issue

I've made a vertex group on the model of edges I want to displace: In Vertex Paint mode (Vertex Selection) I selected the vertex group, and then set that full black (Paint > Set Vertex Colors): ...
KickAir8p's user avatar
  • 2,342
2 votes
1 answer
1k views

How to add color information from csv file to objects

I have a csv file with xy coordinates and an additional column that I want use as color information and set as a color ramp. Below is an example of the data I have: Edit: if the color ramp was to go ...
Jasmine's user avatar
  • 23
0 votes
0 answers
38 views

Importing model with transparent vertex colors not working

I'm trying to import a 3d mesh I generated in another program to blender which uses vertex colors, but the transparent areas always look opaque. I've tried changing the material blend mode, viewport ...
melikechicken's user avatar
0 votes
0 answers
100 views

Vertex painting how to

First pic below shows the horns and the node setup. The horns were masked and done as a separate vertex color index. Not sure if this was necessary and might well be complicating things. Second pic ...
Trey Harper's user avatar
0 votes
1 answer
433 views

(3.0) Geometry Nodes break Vertex Colors

https://blender.stackexchange.com/a/245919/134355 I need to use the method shown in the linked post for something of my own, but even when using that exact Node layout and Modifier Setting, it ends up ...
LordMcMutton's user avatar
1 vote
1 answer
1k views

Is it possible to set/manipulate vertex colors from geometry nodes?

Is there a way to output floats or colors into a vertex color layer from geometry nodes in Blender 3.0 or 3.1? Thanks!
bestelix's user avatar
  • 125
0 votes
1 answer
86 views

Assigning vertex groups in Geometry Nodes

I would like to know if there's a way to assign vertex colors in geometry nodes.
Zak Nelson's user avatar
2 votes
2 answers
533 views

How to assign a color for a single surface without changing the other side color?

[Blood vessel][1] I am trying to draw a 3D blood vessel. I want the outer side of the vessel to be darker than the the inner layer. My problem is when I assign a color it will be applied for both ...
Majdi Al-Amili's user avatar
0 votes
1 answer
970 views

Vertex Color Paint Rendering in Blender v3

I'm going totally crazy. I have my nodes all set, the Vertex colors are named something other than 'Col,' and everything is ready to go for rendering. However, every guide on the Internet tells me to &...
Magda's user avatar
  • 1
9 votes
3 answers
8k views

Geometry Nodes output to vertex color

I'm new to geometry nodes in 3.0 and a bit stuck on understanding how to output data. I've spent a fair bit of time searching this, but perhaps I don't understand the system well enough to find the ...
TuquePhoenix's user avatar
0 votes
0 answers
16 views

Blender model completely white after exporting (.fbx) [duplicate]

I'm pretty new to Blender and Unity (started yesterday), and I am having some trouble with something. Basically, I want to use this model in Unity (pretty much transferring it from one game to another)...
The Sir Rolfe's user avatar
7 votes
1 answer
752 views

Blender for scientific visualization - Point color interpolation from vertex color data based on distance

TL;DR: For a given point in a face/polygon how can I compute the distance between that point and all the vertices on the given face with shader nodes? Overall intent: I want to visualize complex ...
Rui Costa's user avatar
2 votes
1 answer
741 views

How do I use the exact color of one part, then put it on another part?

The title might be a bit confusing, buts lets say I import a 3D model and the torso is blue. how would I select that exact color and put it on the legs? Thank you.
HelloHi's user avatar
  • 29
3 votes
1 answer
259 views

Packing float32 to vertex color

I am learning vertex animation textures. Already used UV.x as normalised vertex index to animate a flag and it works great. I don't have access to uv2 ("game" engine still under in dev ...
lisichka ggg's user avatar
0 votes
1 answer
644 views

Connect 2 nodes to Mix RGB node for all materials via python script

I want to connect an image texture node and a vertex color node to a Mix RGB node (with Multiply as blending mode and Fac set to 1), which then connects to the Base Color of my Principled BSDF node - ...
dvendab's user avatar
  • 25
3 votes
1 answer
307 views

How to use a wetmap to distribute particles (how to distribute plants where moisture collects)

This is a follow-up to this question - Geometry nodes: How to distribute points on valleys only? One of the approaches considered was using particles to simulate rain, then using the wet map from ...
Ed Tate's user avatar
  • 5,146
3 votes
0 answers
69 views

Blender ColorRamp strange behavior

I found an unexpected behavior of ColorRamp node and I will demonstrate it on a simple example. There are five cubes and they have vertex colours set. From left, the colours are in RGB: (0.0, 0.0, 0.0)...
Maca's user avatar
  • 31
0 votes
1 answer
92 views

How do I convert the vector of hair curve to father mesh's vertex_color by python?

How to turn hair's vector(XYZ) to monkey's vertex color(RGB) This is the maya python,I want to convert this code to Blender,What should I write? ...
Li Yuanliang's user avatar
2 votes
1 answer
503 views

How to batch modify the vertex colors of different meshes

I hope to use different vertex coloring to create the effect of edge lines. Different vertex groups can achieve this effect by giving different colors. But currently I have a large number of meshes ...
chun zhong's user avatar
0 votes
0 answers
26 views

Mesh face selection by color range

I'm doing a scene inside a cathedral, starting from a scan. To make it short, I'm selecting the windows by hand and assigning a glass shader so the light can pass through. It works, but, I was ...
Jack Fisherman's user avatar
6 votes
1 answer
611 views

Geometry Nodes Separate out Alpha Channel from Vertex Colors

I'm using the RGBA channels of the vertex colors on geometry for various effects but I can't find a way to separate out the alpha channel in geometry nodes. Is there a way to access the Alpha channel ...
BenignBrett's user avatar

1
2
3 4 5
7