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.
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How can I set and get the vertex color property?
I can't find a way to display RGB values (or equivalent) without using the python shell.
I would like to get and set color values numerically (ie. not painting), I can't find it for weight painting ...
24
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1
answer
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How can vertex paint be rendered?
I have added some vertex paint and would like to see it in the render.
It looks simple enough on all the tutorials, except I don't have those options available; Having spent hours researching I am ...
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2
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How to display and use Vertex Color from OBJ model
Recently, I found this funny site, that allows you to generate a 3D model from a 2D image.
It works very well and you can download an OBJ file. Vertex are colored and when I import it using Blender, ...
10
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1
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Import PLY doesn't display vertex colors
I'm trying to import a .PLY mesh in Blender.
I've troubles with colors: the mesh appear in a grayscale palette.
Other softwares open it correctly (eg. MeshLab).
This is the header of the PLY file:
<...
2
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1
answer
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set a specified vertex color to black via python
how to set the vertex color in the center of the mesh to black and the rest of the vertices to red via python? a lot of the answers just tell me that i can color all the vertices in one face like that:...
9
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2
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File format with per face colors
I am trying to export a mesh from some scientific experiment (in MATLAB) and load it in blender for rendering. I'd like to assign per-face colors (as opposed to per-vertex with interpolation over ...
6
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1
answer
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Applying per-vertex colors to new Bmesh
I'm having trouble applying vertex colors through Python to a mesh. The mesh is imported from a file which has vertex info, face info (vertex indices), and a list of colors that corresponds to each ...
4
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2
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Per face vertex coloring
In blender you can color the vertexes. But is there a way to color the faces so the faces have only one color instead of the colors being interpolated based on the colors of the surronding verticies. ...
4
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1
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How do I set a vertex color material in Blender 2.8?
I have a model with vertex colors in it. I would like to display it in rendered shading. There is no more an input called vertex color.
I'm using Blender -2.80-387c1f2e0d5d-linux-glibc224-x86_64
How ...
23
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2
answers
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Is it possible to paint only on selected vertices in vertex paint?
I'm trying to add some fake shading to a model in vertex paint mode, but I'm having trouble because some parts of the mesh hide the vertices I'm trying to paint. Ideally, since I'm painting the same ...
14
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5
answers
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How to bake to vertex colors in blender cycles?
The long way I do this is:
have cycles render selected
setup the materials of a mesh
create it's UV coordinates
create a new image and assign it to the mesh
bake
change from cycles to ...
10
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3
answers
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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 ...
7
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5
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Turn weight paint(vertex groups) into vertex paint?
Can I turn weight paint(vertex group data) into vertex paint? I would like to take the weight paint value and convert it into a black and white grey scale vertex paint map.
7
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2
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Dilate/expand vertex color mask?
I'd like to use vertex colors in order to apply different shaders on a single object, instead of going through the whole process and drawing a 'black and white' texture (for 1000+ objects).
...
6
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1
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Vertex colors are wrong value?
I am using a renderlayer with some vertex colors to render some masks. I have an object with a vertex color layer. The entire object is set to RGB values of .25 each (using set vertex colors command.)
...
3
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2
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List vertex colors from a bmesh
I'm working on a custom exporter for an external software.
I need to get a list of the vertex colors from a triangulated mesh.
To get the triangulated mesh I use this code:
...
3
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1
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how to use external values as input for color ramp shader node?
All,
I've recently started dabbling in Blender to do some scientific visualization, like ParaView but 1000x prettier :)
At the moment I'm trying to tackle adding a color ramp to a 3D surface. As of ...
2
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2
answers
2k
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How can I reset a Grease Pencil object's vertex colors?
This is my blend file. It has 2 GP objects. In object mode everything is colored correctly. If I switch from solid mode to Material preview or display render preview mode The GP Objects turn ...
2
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2
answers
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Blender 2.81 doesn't seem to be importing vertex color for .ply
So people have had similar problems showing colors on .ply files here and here but I don't think this is the same case. I've exported a .ply file from a program called paraview with color info on it....
0
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1
answer
258
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Cycles Gradient between two materials
How do i create gradient between two materials in one mesh? (second screenchot was edited in PS)
0
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1
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6k
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How do I bake/add material colors onto my UVmap?
I looked everywhere from tutorials to documents and either they only talk about texturing or they are doing the tutorial in 'blender render' when I need it in 'cycles render'.
I have a cube that is ...
8
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2
answers
815
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Linking the color of one mesh to a second mesh
I have a series of tubes that were inputted as VRMLs with varying colors. I have made a path out of them and have the sphere following the tubes. I want to link the color of the sphere to be the same ...
8
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2
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How to view vertex' colors?
I'm a beginner.
Is it possible (and if so, how) to select a single vertex and change its color? I tried the "Vertex paint" mode, but couldn't find a way to select a single vertex and view its color.
...
4
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1
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Vertex colors loose color data
Vertex color data seems to be distorted when used in material nodes, does anybody has similar issues? Looks like Blender modifies them for Cycles somehow. I am using VC not for coloring but for ...
3
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1
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python code to set color attributes per vertex in blender 3.5
I have a python script that sets vertex colors per vertex (reading the data from lists) which worked in blender3.3.
I'd like to use that script in blender 3.5 (simulations branch) but it throws an ...
2
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1
answer
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How to bake ambient occlusion into vertex colors?
This is frustrating for me. The UV-textures to vertex cols add-on doesn't seem to work despite the specific instructions. Any other tutorials I can find are either very old or very poor.
I'd like to ...
1
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1
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How to bake uv map texture to vertex color (selected to active)?
I have two mesh ! One mesh textured and one mesh no textured. How to bake uv map texture to vertex color (selected to active) ?
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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!
0
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0
answers
773
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How to convert this vertex paint into a useable material (scripted)?
I have a single, the all-in-one mesh object created and then vertex-painted with a script. I can see the colors in vertex paint mode, but I haven't been able to successfully turn it into a renderable (...
0
votes
1
answer
601
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Flat shaded mesh - missing separate colours/normals for connected vertices?
I recently got started with python scripting, so I am still very new to this!
I am trying to set the vertex color of vertices looking'up' to white, otherwise set it to black.
I use a dot product to ...
14
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2
answers
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How to colour vertices of a beveled curve mesh without converting to mesh?
For scientific visualisation, I'm using a lot of splines which are bevelled with an object (i.e. a hexagon). I control the level of details depending on the context.
Without losing the benefits of ...
8
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3
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2k
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Smoothing vertex_colors values
I'm coloring a mesh using vertex colors:
...
7
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1
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Bake a texture to vertex color in Blender 2.8
In Blender 2.8 was removed Blender Render, where was option "Bake Texture to Vertex Color". Unfortunately in Eevee there is no such functionality.
I like new Blender 2.8 very much, but I can't use it ...
5
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2
answers
20k
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Bake vertex colors to texture from mesh
This has been asked before but I can't find the solution now. The solution was something about going into blender render, setting the bake type to vertex colors and then just baking but I'm just ...
5
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1
answer
172
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Merging vertices messes up the vertex colors. Is there any fix for that?
Merging vertices messes up the vertex colors. Is there any fix for that?
Before merging by distance:
After merging by distance:
I am using blender 4.0:
Here's the file:
4
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2
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Can Collada export vertex colors?
In order to demonstrate my problem, I created a simple scene with a cube and I used Vertex Paint to color one corner.
When I export to COLLADA, I make sure that "Include Material Textures" is checked....
4
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1
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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 ...
4
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1
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Getting Blender to export .ply files with vertex colors
I'm trying to get Blender to export .ply files with vertex colors and triangular faces.
First, I assign my model a material, and change its diffuse color. Then, in edit mode, with my whole model ...
4
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1
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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, ...
3
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0
answers
479
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Per-Face Vertex Color from Image Texture
Is it possible to convert a UV mapped image texture into per-face vertex color?
I found this script that can generate Per-face vertex color from Normals of 2.79, or an add-on Bake vertex color, but it ...
3
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0
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Colouring hair with vertex paint [closed]
Is it possible to get a vertex paint layer into a cycles hair material, when the hairs are emitted from vertices?
Here is a vertex paint layer working for the emitter, but the hair strands don't get ...
3
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1
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132
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Can I animate which vertices a certain material is assigned to?
What I want to achieve is to have a low-poly mesh with a certain mesh assigned to a set of vertices, and then be able to animate it to change which vertices are affected. Something like this:
To ...
3
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1
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1k
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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 ...
3
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0
answers
285
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How to access hidden value in Uvmap (UVWT)
I got a really specific question for an expert.
I learned recently there is no such thing as Vector 2 in a graphic shader. Every Vector is in reality a Vector 4. Like vertex colors are not just Vector ...
3
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2
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Is it possible to set the vertex color alpha component?
I work in the game industry and often make shaders that rely on vertex color parameters for certain effects. This is often used to reduce shader complexity and material usage in order to improve ...
3
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1
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Flat vertex painting, or face painting?
Vertex painting is far too soft for me:
I'm looking to paint something more like this (not exact, but close enough):
Instead of smooth interpolation, color interpolation should be done on a per-face ...
3
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3
answers
2k
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How to invert vertex colors in Blender?
So there is no built-in functionality to invert vertex color o.O
How can I invert vertex color on an active object?
3
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1
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660
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How to add a RGB Curve node
How i can add a RGB Curve node, like this example?
I want to improve colors of my PLY mesh.
(This screenshot is not mine, I've found in this forum.)
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2
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1k
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How to properly set VERTEX_PAINT mode from a python script?
My goal is to get a rendered image of an PLY mesh from command line.
I wrote this script:
...
2
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0
answers
251
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Why is the vertex color interpolated differently in different cube faces?
I realise this might be a very simple and stupid question as I am just getting started with Blender.
I am trying to procedurally colour vertices to produce pseudo-colour maps.
I created this simple ...