On Tue, 07 Sep 1999 14:19:01 GMT, Lutz Kretzschmar wrote:
>Hi Remco de Korte, you recently wrote in povray.windows:
>
>> That is a reasonable explanation.
>> The way I think this will work the whole image will be loaded into memory with
>> one single statement and then it's not really relevant anymore though. 
>If the image is vertical, blitting from it will be better because the
>bitmap is in contiguous memory, i.e. the CPU cache will do a much
>better job of getting data, it could make it quite a good deal faster.

Though if you're lucky, the bitmap is located in an unused chunk of video 
memory and the CPU doesn't even have to get involved in the blitting 
operation.  Yes, I've been writing video device drivers lately, why do you
ask?  Is it the missing hair or the wild look in the eyes?

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