On Thu, 18 May 2017, Reimar Grabowski wrote:
compared to
everything that the GPU has to do (a LOT more points and calculations),
the CPU does relatively little in comparison.
And still too much.
So the question remains:
Why do you have to *calculate* *all*?
Because you want to create an image ? That's what a ray-tracer does AFAIK.
I'm not an expert, but I remember writing POVRay scenes that took forever to
calculate e.g. a chess board with pieces on it. Admittedly, a long time ago.
You assume that you have a GPU to do a lot of work for you because it
renders on screen, but what if you don't want to render the scene on
screen, but in a bitmap, without GPU...
Michael.
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