- Calculate AO in flw_light
- Pack block light, sky light, and valid block count into a single uint
when reading the 3x3x3 light volume for a fragment. This saves a
significant amount of memory and integer additions in the shader, but
does require slightly more alu ops overall for the packing/unpacking
- Add pragma optionNV (unroll all) for significant perf boost, may want
to manually unroll to be cross-platform
- Remove redundant flw_light
- Expose light in the shader api
- flw_light - for builtin smooth lighting, faster than can be
implemented by materials alone
- flw_lightFetch - for materials that want to go crazy, access to raw
data
