Triangular pattern texture

Hi everyone, I would like to obtain this texture effect but with only small triangles. How can I do this with grasshopper? Furthermore, I would like this texture to fade near some edges of the object.
Thanks

Depends a bit on what you have as a base. If you have a surface you could populate the surface with random points. Evaluate the surface at that point and get a plane base on that. Move the plane a little bit in normal direction. (Here you could use a point attractor to get the fall of/ Amplitude (distance center triangle to attractor)) Now rotate the planes randomly from 0 to 2pi. Create two triangles one bigger one smaller. Loft them. Use the base curves and project them in normal direction on the surface and loft again. Join them to one.

This is how i would probably approach it. If you have a lot of triangles this could get quite slow. If you dont need nurbs you could also do it with meshes

//If you also would like to have them like on the picture perfectly normal to the surface you could also rotate the planes a tiny bit off axis.

Populate 3d surface with small extruded shapes in Grasshopper - Grasshopper - McNeel Forum