Perlin Noise questions 2004-01-23 - By brubaw@(protected)
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On Fri, 23 Jan 2004, Thomas Williams wrote:
> 1) You chose to use flash for your math computation because Flash has
> bitwise operations. I assume you did this for the speed increase that
> bitwise operations allow (accessing binary is faster). Director cannot
> do this, without the aid of an Xtra, is that correct?
Nope, Director has built-in functions for most of the bitwise operations:
bitAnd(), bitNot(), bitOr(), bitXor().
Bit shifts can be done by multiplying or dividing by powers of 2.
> Is this technique recommended for speedier loop intensive mehtods,
> especially imaging lingo setpixel() processing? In this case, is flash
> actually faster than Director?
I haven't done speed comparisons, but I'd be mildly surprised if Flash
were faster.
--
Bill
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