30 marzo 2013

TriAce BRDF + IBL + Blurred Reflections

Still under development, but here is some progress:

I had a problem when creating the IBL cubemap.. I was used to import .exr textures with texture type set as Lightmap, but this didnt work when using a cubemap object. So sadly I had to do it in runtime. Imported as standard texture, in DXT1 and enconded to RGBM inside the shader as described by Brian Karis.


For the reflections Im still using the Latitude/Longitude Map. Mainly to avoid texture lookups. For now Im using MIP levels depending on the roughness, but I have to do some more research. There is still a huge problem with edge seams.

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