Creating a Realistic Cloth Material

Cloth material
Main parameters:
- Diffuse texture
- Relief bump texture
- No reflections
This setup uses RED::IMaterial::SetupRealisticMaterial
to produce a cloth material. The setup relies mainly on applying a diffuse texture and a bump texture to define the material. As this is mainly wool or cotton, or other tissues, we have almost no reflectance to simulate here. So we just stick to the diffuse plus bump combination here.