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Performance is a subset of Optimization: performance is the goal when you want the execution time of your program or routine to be optimal.
3
votes
Accepted
Creating a matrix from a dyadic product
There is a problem with vector multiplication in the second loop. You should transpose the second vector before doing multiplication.
F(:,:,t)= [Ax(i,j);Ay(i,j);Az(i,j)]*[Ax(i,j) Ay(i,j) Az(i,j)]';
…
1
vote
Optimizing lighting algorithm for a voxel engine
Did you try using performance profiler with this code? Usually profiler can tell you where the problem is or at least show you the whole picture and give a starting point. …