renderers/pmrem_generator
library
Properties
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final
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lodMin
↔ int
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This class generates a Prefiltered, Mipmapped Radiance Environment Map
(PMREM) from a cubeMap environment texture. This allows different levels of
blur to be quickly accessed based on material roughness. It is packed into a
special CubeUV format that allows us to perform custom interpolation so that
we can support nonlinear formats such as RGBE. Unlike a traditional mipmap
chain, it only goes down to the lodMin level (above), and then creates extra
even more filtered 'mips' at the same lodMin resolution, associated with
higher roughness levels. In this way we maintain resolution to smoothly
interpolate diffuse lighting while limiting sampling computation.
getter/setter pair
