On Nov 24, 2012, at 5:05 AM, Boudewijn Rempt wrote:

I must be missing something else.

Looks like a known issue. MatrixOps.cpp line 457 says:

// TODO: This should not act upon alpha,
// since we dont apply it on the CPU?


Maybe you could figure out a way to keep the alpha multiplied by 1.0?



Brendan