Vertex Color allows you to blend multiple material layers using the vertex color data from the mesh as a mask. To use this shading model, ensure your mesh includes Vertex Color data created and saved in your DCC (Digital Content Creation) tool of choice. This data must then be exported with the mesh and imported into Toolbag.
In Vertex Color Mode, layers can be assigned to one of four vertex channels (RGBA), allowing for up to five material layers: one base layer and four layers with unique masks. While additional layers can be added, only a single set of vertex colors is supported, which limits the number of unique masks that can be created.
| Setting | Description |
|---|---|
| Layer Visibility | Hide or show the current layer contents. |
| Remove Layer | Delete the current material layer. |
| Channel Selection | Select the channel of the texture that will be used for blending. It’s useful when, instead of using multiple single textures, you use one texture with different grayscale maps in the different texture channels: Red, Green, Blue, and Alpha. |
| Brightness | Adjust the brightness of the mask to increase or decrease its intensity. |
| Contrast | Adjust the contrast of the mask to make the mask sharper or smoother. |
| Add Material Layer | Add an extra material layer. Note: Adding too many layers can cause performance issues. |
