Is there a way to easily take 3 or 4 grayscale images and merge them into a single image? I’m not sure why this isn’t common but currently I’m using Bitmap2Material3+ with a diffuse texture to generate additional Metallic/Roughness/Normal & Ambient Occlusion maps.
I understand the normal map needs to utilize all 3 color channels for accuracy but why can’t the Metallic/Roughness/& AO maps be merged into a single RGB texture? They are all grayscale images that could be represented by one of the 3 channels (R,G,B). Wouldn’t that save a lot of time and space in the engine?