Does anyone know if VS3 will support matrix multiplication?

[DeadmeatGA]

Meaning single cycle [4x4] x [1x4] mutiplication?(Or 16 FMACs per shader)? I haven't been upto date on shader technology. Thanks.

 

[akira888]

I have the relevant documentation before me and a 4x4 matrix multiply still takes up 4 instruction slots in VS3. In other words, it decomposes the macro into a "mul" followed by 3 "mads" (I'm assuming). I don't even think it's desirable to place 16 FP multipliers on one shader - it would be better IMHO to split those 4 vector units into 4 seperate shader units.

 

[Simon F]

Sometimes you only want to do a [3x3]*[3x1] multiply. Why waste resources?