Hello,
Im wondering if someone can help me with the Custom Expression Node. Im not sure why it is not working. Basically Im trying to use it to blend 3 textures together inside a given triangle.
Im my example I broke it down the the smallest components possible.I pass the 3 points of my triangle (a,b,c) and p (vertex position node). I calculate the barycentric coordinates(u, v, w). Then I check if p is inside my triangle by making sure the sum of u+v+w is <=1 (image has typo of * but I use +). If true I return the desired blend weigh (u,v,w) to a Weighted Blend node and a texture index to my texture array.
Im not seeing any affect, I would expect my triangle to have a different color than the surrounding triangles and have a gradient blend.
Please help I not sure if the Nodes are used correctly