Sean R. Lynch wrote:
x = zeros((3,))
x[array([0, 1, 1])] += array([1, 1, 1])
x
> array([ 1., 1., 0.])
>
> If this worked the way I was hoping, the output would be [1 2 0] because
> it would add to element 1 twice due to its duplication in the advanced
> selection array.
>
> Is t
I have an array of vertices and an array of indices that make a list of
triangles. I'd like to calculate the normals for each vertex as a
(pseudo-)average of the normals of each triangle that contains it, so I
get smooth lighting in OpenGL. I'd also like to avoid looping in Python
because the verte
