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I have been using OpenSCAD for many years to design 3D parts for printing but till now have always been frustrated with its very slow rendering speed.
The latest release version is still 2021.01, but in the nightly builds section the very latest version 2023.09.11 (which is still experimental) can be downloaded and this has some very impressive speedup options. I found that by turning on the following options that I reduced the rendering time of my concentric coil shell from over 5 minutes down to around a second or two: -
fast-csg
manifold
vertex-object-renderers
vertex-object-renderers-indexing
vertex-object-renderers-prealloc
Regards
The latest release version is still 2021.01, but in the nightly builds section the very latest version 2023.09.11 (which is still experimental) can be downloaded and this has some very impressive speedup options. I found that by turning on the following options that I reduced the rendering time of my concentric coil shell from over 5 minutes down to around a second or two: -
fast-csg
manifold
vertex-object-renderers
vertex-object-renderers-indexing
vertex-object-renderers-prealloc
Regards