[@$3.1415rin]

as far as I know, the current fpus support sin and cos support, therefore it's not taking to long to calculate them. Another possibility is using lookup tables for them, but since the fpu normally runs faster than your mem, I guess this is the way to go.

@pierre : why should your code be faster than those of the engine ? don't you think they just do the same ? and in terms of cache usage using the engines one might even be better ... just a thought