processing power is irrelevant it would just take longer on a slower computer.
Early nineties I co worked with a then cutting edge 3d computer graphics artist on a lot of 3d renders including creating a height field 3d image of the Turin Shroud for a book and future channel four documentary using a rendering programme called Povray.
At the time we had 386 and 486 processors linked as a render farm, the final image took multiple machines several days to render.
Today it would take one PC a few minutes to do it in far higher resolution
Povray was also used to create plasma height fields for planets such as in Star Trek
The actual image and the hi res photo of the shroud plus scripted input file is lost in time now but there is a thumbnail at the bottom of the page using graphics link here
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