Vertex Map Shader

Vertex Map Shader

Left a Vertex map, right Vertex Colors, each with Viewport and rendered versions.

The Vertex Map shader works well with Subdivision Surfaces — ensure that each Vertex Map tag has a unique name.

With this shader you can do the following:

• Render Vertex Map tags as grayscale images. Areas with maximum weighting will be rendered white and areas with minimum weighting will be rendered black.
• Render Vertex Color tags. Note that an alpha channel in a Vertex Color tag will only be evaluated for rendering if the same shader is also used in the Alpha channel.

Make sure to assign unique names to the tags.