Image Based Lighting Radiance MipLevel selection, simple lerp is best?

Graphics and GPU Programming Programming

Started by Alundra October 09, 2021 04:25 PM

1 comment, last by Frantic PonE 3 years, 3 months ago

Author

2,326

October 09, 2021 04:25 PM

Hello!
The simple way to select the mip-level for the radiance of the IBL is to do: roughness * (numLevels - 1).
Is it the best the do this way or a more complicated calculation gives better result?
Thanks!

Frantic PonE

115

October 12, 2021 10:23 PM

https://bruop.github.io/ibl/

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Image Based Lighting Radiance MipLevel selection, simple lerp is best?

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