Adding vertex colors to a Source 2 model using Blender

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Todo: Improve the grammar of the article and add to its content (for example, add info about skipping the second step in Counter-Strike 2, since its shaders automatically find the necessary color attributes).

A quick guide on how to add vertex colors to your model in Source 2 using ModelDoc and Blender.

Note: Requires basic knowledge of vertex painting in Blender and creating simple models in ModelDoc.

Step 1. Vertex Painting

In Blender, switch to vertex painting mode and add the desired colors to the desired parts of the model.

• 

  Applied vertex painting in Blender

Step 2. Renaming a data stream

1. Open your model via ModelDoc.
2. Right-click on the render mesh.
3. Find and select Add RenameStream.
4. Click on RenameStream under the desired mesh and fill in the nodes as shown below:

• From Name: color$0

Note: Digit specifies the slot for vertex painting in Blender, so instead of 0 (first slot), it can be anything if your model has more than one slot.

• To Name: VertexPaintTintColor$

Step 3. Enjoyment

• 

  Model without vertex colors

• 

  Model with vertex colors

• 

  Example of barrel material

Supported shaders

List of shaders for various Source 2 applications that support vertex colors on models.

Application	Shader(s)
Counter-Strike 2	Csgo Environment Csgo Simple
Half-Life: Alyx	[Todo]
Dota 2	[Todo]
SteamVR Home	[Todo]

See also

• Blending materials on a model using Blender