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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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
133 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
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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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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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20 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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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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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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How to color the lineset with vertex color [duplicate]

i exported a line with the x3d format from paraview, and imported it into the blender. May i know how to color the line in the blender, please? Because there is usually an existing vertex color for ...
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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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71 views

Export gltf with gradient vertex color

I export my model from Blender with gradient vertex color but when I import to Godot, all the color become solid: I don't see any other setting in export panel that allow use to change anything about ...
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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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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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Setup the same color like unreal engine 4

How do i make Color Space look like UE4? I find few information about that but they are old... Im painting Vertex Colors on giant mesh, and exporting to the UE4 and colors are completely different. ...
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How do i merge all vertex color layers?

I have three layers, i tried using the Data Transfer modifier to combine them all into one, but it ended up with Strongly Highlighted... SOMEBODY HELP!!! [ Edit: I wanna achieve the same result as ...
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1answer
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Change color of selected edge/line

I have an object with complex mesh. Can i go to edit mode and change color of some edges/lines, so they will show that selected color in viewport ?
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vertices extraction

I briefly describe my problem. I've created a basic 3d model (a surface with some rocks on) and I've also applied textures. Now, I should fix a generic camera position and exctract the information (x, ...
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1answer
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How to get the color of a vertex group with python?

Is it possible to get the color of a vertex group that is coloured with dynamic paint? I have a mesh of tree which was created from particle instance and then applied. Then I joined all of that to ...
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Using Blender and PLY file, how to render a grayscale image with assigned intensities at each vertex?

I can programatically generate PLY files with RGB color values as attributes for each vertex, like below ...
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13 views

How can I generate vertex group using scripting?

This is what I am trying to do. I have 5 meshes I want to assign a vertex group to each I want to combine them all I want to assign unique vertex colour for each mesh by selecting the vertex group ...
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make Blender displays vertex color of unselected faces, WITHOUT Blender's white-mix foggy mask

The below image shows the vertex color of an object. The vertex color of left & right parts are exactly symmatric (R,G,B,Black,White). However, if I select only right faces, the left faces will ...
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99 views

Using a Mix Shader to blend 2 Principled BSDF (CYCLES)

Hey Blender Community, I am having a recurring problem when trying to blend 2 Quixel Megascans together using the mix shader and vertex colour. Both materials work great on their own but when trying ...
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1answer
23 views

Is there a way to change the colour of displaced areas only?

I've created this model and created displacement using a combination of weight painting and the displacement modifier to create some intense wrinkles. Is there way that i can change the colour or ...
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1answer
117 views

How do I show vertex colors in Edit Mode in 2.9? [closed]

I just moved from Blender 2.79 to 2.9 (so this may also apply to 2.8)… How can I view vertex colors when I'm in Edit Mode? I have the viewport set to Solid in viewport settings. Everything is fine in ...
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1answer
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How to interpolate vertex colors in a cube?

I have this model made out of cubes: And I want to set the white cube some vertex colors, which correspond to the vertex's surrounding cube/cubes and interpolate between them. Note that this cube ...
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Blender - How to merge vertex color entries

Using Blender 2.79, I'm making a model for a game, but I merged 3 meshes together, and it only shows one vertex color layer, while having 3. See image: https://imgur.com/a/krdDk7H How can I merge ...
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1answer
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Is there a Blender api to fill a color to a certain vertex_colors?

Taking a cue from this question, I'm testing to make a one-color fill to a vertex_colors. Works fine, but is very slow on meshes with many polygons. ...
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1answer
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Can I vertex paint in eevee or is it a cycles thing only?

I would like to make some meshes that are deformed and paint the vertexes to created a nebula of light in a volumetric of colours and was looking to vertex paint in blender 2.83.4 but do not see any ...
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Combine two vertex color layers?

This one is still version 2.79. I would like to combine the two vertex color layers into one. These are what the layers look like: I want to add them onto each other.
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2answers
368 views

Vertex color gradient is not linear

I am painting the default cube through vertex coloring. I paint the bottom four vertices as (0.25, 0.25, 0.25) and the top four vertices as (0.75, 0.75, 0.75). When I inspect the result in VERTEX ...
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Transferring a texture 1 to 1

What i have is: an exported .ply and .obj from MagicaVoxel .obj has it's texture stored in this way .ply is just a 1:1 mesh with all its textures stored in vertices a cleaned up duplicate What i ...
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71 views

Select by certain vertex color

Is there a way to select all faces with the same vertex color of the selected face? There is an old addon, but it doesn't work in the new version of Blender: https://gist.github.com/tamask/2590850
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24 views

How would you select an absolute screen color?

Before moving to 2.8, if I needed to fetch a vertex color used on a face I could easily enter wireframe mode and get the absolute vertex color. Since the wireframe in pre 2.8 versions would ...
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2answers
201 views

Best way to paint same Material with different mask?

My question is to have an alternative way if it exists. So my problem is the following: As you can see from this image, I have 2 materials, the first in the top row, uses vertex paint, so white and ...
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1answer
307 views

How can I change colors of grease pencil strokes drawn in 'vertex color' paint mode?

If I have drawn grease pencil line strokes in 'material' paint mode, I can easily change colors of them by using base color button(marked with a white arrow in above picture). But after I had drawn ...
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168 views

Correct settings for baking texture from vertex paint (low poly game asset)

I'm a newbie in blender 2.8 and made a model for a low poly map. Then colored the map with the vertex paint mode so the coloring fits the polygons of the model. I need to import that model and its ...
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1answer
368 views

How to animate vertex colors using animation nodes

How can animation nodes drive vertex colors on an object? Details I have a time varying dataset the defines the color for each vertex in a model. I'd like to use animation nodes to drive the colors of ...
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1answer
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Blender painting brushes shortcut selection polygons 2.82. Coloring a character with vertex-group in draw mode

How do I select through the shortcuts the polygons that I am going to color or modify? In the video-tutorials I often see using the selection of polygons in the edit mode but I don't know how to use ...
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1answer
23 views

Help make script work on all selected obj instead of just one

Below is the code that is for flipping the vertex on an object. I want it so I can select all objects and run the script it does it to all the objects selected instead of doing them individually. If ...
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33 views

how to programatically color an arbitrarily large number of faces

I've got a bit of a puzzler here I am using blender to import 3d plots that I generate using a 3d graphic utility. What I want is for the blender objects that I create to have a perfect radius, so ...
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0answers
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Vertex coloring on textured models to use in Unity? [duplicate]

I am making a Nintendo 64/ PS1 inspired game in Unity. I know that those consoles did not have lighting and instead used vertex colors on textured models to add variations in light and in color to ...
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The object shows in black color after adding color by vertex paint

I'm following a tutorial on YouTube. I painted my object without any problem with Vertex Paint by selecting the vertices and correct colors has been appeared on my object. Unfortunately, the object's ...
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How can I use vertex paint with another material?

I made a new model and i followed a tutorial. I made a texture and I want to add some color with vertex paint. I tried it, but it doesn't show up on the render. What should I do? Is this possible at ...
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142 views

Vertex color Animation from houdini to blender 2.8

i am trying to export a alembic from houdini to blender. This mesh has a Cd atribute with an animation. I was able to export a still frame using the ROP alembic node in houdini. I can use the vertex ...
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Remove viewport noise

I'm working with color sensitive data in vertex colors, and the only way I can retrieve these colors in real-time is to capture them off the mesh they're applied to (otherwise, I have to locate the ...
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How to copy one object's vertex-color layer to the other same shape object's vertex-color layer2

I draw a color layer in ZBrush and explored to Blender.then,I want to add a Roughness layer with ZbrushPolyPaint,but ZB just Only one vertex-layer is allowed.When i explore the same model with ...
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1answer
33 views

Can't get 2 Dynamic Paint Canvases to render at once - Blender 2.8

Trying to render both the waves and trail of a boat using 2 dynamic paint canvases, one of the Waves Surface Type, and one of the Paint Surface Type. The two show up together perfectly in the viewport,...
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Vertex Color unreadable

I’m using an ‘Attribute’ node to pick my vertex color and filter the green spectrum to input to a coloramp. If I take the ‘fac’ socket as output it works fine, but then I lose the filter color ...
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when adding custom-data layers to bmesh object, where does the data get stored once bpy mesh object is updated?

I am trying to add custom-data layers to mesh vertices so that I may use the values to generate a colorramp on the surface during rendering. Currently, I first map the data to RGBA values and then ...
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1answer
315 views

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 ...
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2answers
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how to modify / customize a coloramp?

New to blender, coming from engineering discipline and want to learn more about rendering CFD/model results in Blender. Right now I'm struggling with generating a coloramp for a 3d surface. What I've ...

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