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pheedyoo / webgl-loader

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Compact normals #12

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Storing XYZ for normals is expensive, considering they are normalized. How 
about a more compact representation? For example, .MD2 used an <8-bit code to 
select per-vertex normals out of a palette.

The downside of a palette is that you have to send the palette. What about 
something that used [http://en.wikipedia.org/wiki/Peirce_quincuncial_projection 
a simple sphere projection]?

Original issue reported on code.google.com by wonchun on 13 Aug 2011 at 9:11

GoogleCodeExporter commented 9 years ago

Original comment by wonchun on 15 Oct 2011 at 7:33