Has anyone used material nodes or something else before to achieve the effect of having a color/texture only on surfaces with a min/max slope? Is it even possible?
I thought of having one material node as the base material and a second that has an alpha that is dependent on the Z value of the normal vector, but how in **** do I actually set this up? All my tries yield nothing…
Regards
Hamu
hi, it can be done with nodes.
there is information here
& more here
Thanx for the input, I did have a look at both threads… I came up with my own solution (which is kind of a blend of the two posts plus another one)…
- Move all existing lights into a new lighting group and set all existing materials to use this lighting group exclusively
- Add a new sun light (straigth down)
- Add a new white non specular material that only reacts to this new sun (another lighting group)
- Use the color of this material to drive the mixing of the two materials that I want to have mixed depending on slope (using a math multiplier in between to tweak it some)
Blend: http://www.dumbledor.net/blender/slopemat.blend
Picture (Result): http://www.dumbledor.net/blender/slopemat-result.png
Picture (Node Setup): http://www.dumbledor.net/blender/slopemat-nodes.png
Cheers
Hamu
