Blending materials on a model using Blender

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Todo: Write the same article, but about VertexPaintTintColor$ (works the same way, but when specified together with VertexPaintBlendParams$, requires specifying a different vertex color slot).

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

Note:This article assumes that you already know how to work with vertex painting in Blender and create 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. Below is a list of colors used in Source 2 for blending materials:

1. Black - Layer 1 in Source 2.
2. Red - Layer 2 in Source 2.
3. Green - Layer 3 in Source 2.
4. Blue - ^[Todo]

Step 2. Renaming a data stream

1. Open your model.
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, it can be anything if your model has more than one slot

• To Name: VertexPaintBlendParams$

Step 3. Enjoyment

• 

  Model with simple material

• 

  Model with material blending

• 

  Color channels of the blending material