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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26 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 ...
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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 ...
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37 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 ...
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34 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!
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Assigning vertex groups in Geometry Nodes

I would like to know if there's a way to assign vertex colors in geometry nodes.
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2answers
162 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 ...
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34 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 &...
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14 views

Blender Crashes when Baking Vertex Color

I am trying to bake the vertex color, by plugging the vertex color directly into the material output slot and having bake set to emission, but Blender immediately freezes, doesn't show any progress ...
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1answer
232 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 ...
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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)...
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273 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 ...
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1answer
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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.
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1answer
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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 ...
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1answer
52 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 - ...
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1answer
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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 ...
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How to add color to .obj file for 3d printing service?

I am trying to add the texture to my .obj file properly so it can be printed by my 3d service, I am having a lot of trouble because it has a deadline. It's not a stamp texture, I have tried this in ...
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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)...
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23 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? ...
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1answer
126 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 ...
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21 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 ...
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71 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 ...
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1answer
400 views

How to transfer vertex paint from one mesh to another - without copying other data

I need to transfer vertex volors from one mesh to another. They are the same but first one has normals that i want to keep, second contains vertex color i want to transfer but doesn't have normal info....
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172 views

Blender colour through Z vertice

Hello I've read a few threads on this but i havent found anything with my specific issue. I want to try colouring my mesh based on specific Z values. So for example if its above 10 I want it to be red....
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1answer
51 views

adding texture on vertex color by mixrgb makes texture image lighter on white vertex color

When editing a vertex color and then adding an image as texture on it with mixrgb it is lightening the texture image. i only changed the vertex color. When it is on brown the texture image is correct ...
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42 views

Separation of a multicolor 3D object in X3D format based on its individual colors

I am a biochemist and I would love to 3D print a multicolor model of the Corona Virus Spike protein by means of a FDM 3D printer. As input file I downloaded a multicolor X3D-file from https://3dprint....
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Jagged result of baked vertex color

My model has vertex color. I unwrap using Smart UV Project with default (Angle limit 66 and Correct Aspect selected). In shading node, I linked Vectec Color (Col) > Principle BSDF > Material ...
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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 ...
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261 views

Import .ply with vertex colors into Blender

I'm trying to render something that would look like this: I've had a similar problem here: Blender 2.81 doesn't seem to be importing vertex color for .ply And in that question I linked where ...
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1answer
207 views

for all objects, rename 'Vertex Colors" that has a certain name :: using python

Many objects in my scene has Vertex color (left image) that is used in Shader Node (right image). ^ I want to change color1 to a more meaningful name e.g. ...
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1answer
7 views

Rig rest position in Vertex Paint?

Is there any way to display the rig in it's resting position only in Vertex Paint? The rig is pre-posed to a position I want however since the hands are curling inwards, I can't see the entirety of ...
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How to colour particles (in particle settings) based on vertex colour of emitter object

In Blender 2.8, cycles renderer. I'm using an imported .ply object (which includes vertex colours) to generate a single particle on each vertex of the object. The idea is to create a point cloud ...
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1answer
769 views

Where is sculpt vertex paint in 2.92? [closed]

I have seen YouTube videos featuring sculpt vertex paint but the buttons for it don't appear in my sculpt menu. Some people have said it's an experimental feature that needs to be activated in the ...
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I want to get vertex color data from a video file in dynamic paint, I used initial color to link image and video texture to the dynamic paint settings

I want to use dynamic paint to get an output for use outside of Blender so the only export I want is vertex colour. Hence to use images and videos as vertex colour in Dynamic Paint I found out that I ...
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45 views

When I paint in vertex paint mode, can I paint per vertex with python script?

I know that selecting vertices is possible in edit mode. I want to color after selecting a vertex in vertex paint mode. Is that possible?
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357 views

How to make a gouraud shading material

i would like to make a material that uses gouraud shading instead of phong : That means that the shader is per vertex and not per pixel, i thought i could use the parametric input but it didn't lead ...
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1answer
43 views

Dynamic Paint - "Use Object material" for Brush removed in Blender 2.8?

Blender 2.79 has the option to use the material color as the brush. Did 2.8 remove this option? Has it something to do with Blenders internal render getting removed or what's the reason? My goal is to ...
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30 views

How can I set vertex color values accurately?

I'm using blender 2.79 and I try to modify some vertex colors using a script. When I try: ...
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28 views

How to convert a mesh with vertex colors to grease pencil and keep the vertex colors?

I have a Mesh that has Vertex Colors. Is there a way to convert the coloured mesh to grease pencil, and keep the Vertex Colors? Right now, when I convert it, the lines only become black. I am using ...
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Why is my tension map turning out as bumps?

I am having a problem with an tension map addon. https://blenderartists.org/t/revised-mesh-tension-add-on/1239091 <- that one. and the tutorial (by kext next) I was following is https://www.youtube....
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1answer
122 views

Why have I got an extra vertex when exporting to ply format?

The following is a very simple object in Blender (that I have cut out from a much larger object in order to highlight where the issue lies). It has nine vertices and four quad faces. There is vertex ...
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2answers
302 views

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: ...
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1answer
65 views

How to convert vertex colors to materials

Title says it all How do I convert vertex colors into materials? I need this because .OBJ doesn't export the vertex colors with it it doesn't need to be 100% accurate, if there were dark red and ...
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0answers
98 views

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 ...
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1answer
215 views

Color into Alpha - Nodes and Vertex Paint

As a way of easily blending materials together on a single object, and to allow me to do so on arbitrary parts of the model (without needing to segregate a specific part of the model's UV map or ...
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27 views

Is there a way to have more vertex colors per mesh? Or at least some kind of workaround?

At the moment it won't let me create more than eight, the add button doesn't work after that number. I use these for different "handpainted" lighting effects for different scenes with the ...
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27 views

Purchased a rigged character, but can't vertex paint

I purchased a royalty free rigged hamster from TurboSquid but the colors are wrong and don't fully match the colors on my free downloaded hamster from TurboSquid. I tried to create a New Material to ...
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78 views

How to use two displacement material in one plane?

I was making a terrain, actually making a path on the terrain,so I have to combine two materials together with their own displacement maps. Now I know how to do it for those normal materials, I just ...
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29 views

Section of my object is darker than the rest

here's an image of my issue: I'm attempting to create a model, and I'm using vertex paint in order to colour certain faces. However no matter how I paint it one section of the model will appear much ...
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113 views

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 ...
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2answers
649 views

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 ...

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