A CylinderGeometry with 24 radial segments has 148 vertices and 96 indices, but that could be optimized to 49 vertices (24 for base + 1 NaN + 24 for top) and 92 indices (22 for base + 22 for top + 2 times 24 for body). My problem is that I don’t know how to calculate the vertex normals for my “cyli…

If I would want a cylinder with indexed geometry, build of 24 radial segments, I’d chose a geometry with 96 vertices (48 for side faces, 48 for top and bottopm lids), and for lines (LineSegments), I’d use an indexed geometry, that shares the same buffer attribute for positions of the cylinder geomet…

How to calculate vertex normals of custom cylinder

Questions

prisoner849 January 12, 2022, 7:56pm 2

It can’t work with NaNs. You may notice a message in the console, that the framework fails with .computeBoundingSphere for your geometry because of NaNs.

Reminded me of this topic: Using NaN in attributes

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How to calculate vertex normals of custom cylinder

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