I've never heard of isolating the green channel of the normal map and using it as a paint layer. What effect does that create exactly?
WARNING They dont listen to their users as much as they like to say they do. Check their forums. Plenty of requests go unanswered. Their "To Do" list has been outdated. They lack staple features such as a Text Tool, Adjustment Layers, Channels, Layer Styling, Proper Cropping. Paintstorm cant even resize a photo correctly (It will always leave a border when resizes). You also run into square artifacts occasionally. There have also been several instances were paintstorm was detected as malware, once called out, the dev reuploads a clean version. This happened at least twice from forum reports and Virus Total. Aside from the very obvious lack of support and maintinence. The brush system is good. However a good brush engine will not replace the other basic features and functions paintstorm lacks. DO NOT expect support. This is definitely a homegrown app and it shows. If you want a versatile brush engine, clip studio or even krita is where its at.
Check out a useful shader for Marmoset Toolbag 3 by Chris Perrella, a senior shader artist at Insomniac Games. The pack features a shader extension for foliage shading and animation.
- Animation using vertex displacement based on Crytek procedural animation. Vertex color provides information to the Detail Bending settings in the material.
- Red channel is used for stiffness of the leaves’ edges.
- Green is used for per-leaf variation.
- Blue is overall stiffness of the plant.
- Documentation is available here.
- Custom lighting for foliage materials, using a physically based half-lambert diffuse shading model with variable light wrap and shadow opacity.
- A sample scene with vertex painted meshes is provided. (Textures not included with the download).
- Download “foliage_tb3.zip” from Gumroad
- Unzip file to your “C:\Program Files\Marmoset\Toolbag 3\data\shader\mat\custom” folder
- Launch Toolbag 3
- Select a shader and scroll to the bottom section of the material attributes tab.
- Click the triangle on the right and select “Custom”
- Click the triangle next to “Shader” and select “foliage_shading.frag”