I am very comfortable with both Constructive Solid Geometry (CSG) and the use
modelling tools such as AC3D that produce a union of triangles.

For VERY complex shapes, from a performance perspective, should I be using CSG
or triangle models? CSG is more work on my end, but I am interested in the
memory and CPU time for rendering, as well as the image quality.

I will gladly spend the time with CSG is the performance is significantly
better.

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