Hi,

I have a list of vec3 lists (e.g. [[1,2,3],[4,5,6],[7,8,9],...]). To every single one of the vec3 sublists, I am currently applying transformations.  I need to optimize this with numpy. 

To get proper results, as far as I can tell, the vec3 lists must be expressed as vec4s: [[1,2,3],[4,5,6],[7,8,9],...] -> [[1,2,3,1],[4,5,6,1],[7,8,9,1],...].   Each of these needs to be multiplied by either a translation matrix, or a rotation and translation matrix. 

I don't really know how to approach the problem . . .

Thanks,
Ian