I’m just curious about what the Nabla value means in most procedural textures. I tried tweaking the value but it doesn’t seem to change anything. But according to BlenderWiki, Nabla means:
- “Almost all procedural textures in Blender use derivatives for calculating normals for texture mapping (with as exception Blend and Magic). This is important for Normal and Displacment Maps. The strength of the effect is controlled with the Nabla Number Button.”