Paul Pantera wrote:
> Why not use the NormalGenerator on custom geometry?
Because you need to use GeometryInfo to use NormalGenerator. And
GeometryInfo, while quite powerful and useful, is performance and memory
hog.
If you are creating specific geometric shapes for which you exactly know
normals, coords, optimal strip arrays etc, generating everything
directly for *GeometryArray is a lot faster (I mean faster execution at
runtime).
To give you example - I was experimenting with very detailed spheres.
I've either set up all vertices and normals by hand (especially normals
are easy :) or used GeometryInfo. Difference in runtime size (peak) was
something like 10MB versus 70MB.
Artur
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