From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 6 May 2021 08:16:05 +0000 (+0300)
Subject: Implement image-based lighting in PbrMaterial
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=6b9338845dfee441cd18ad6c633e4feef8ad14e1;hp=6b9338845dfee441cd18ad6c633e4feef8ad14e1;p=libs%2Fgl.git

Implement image-based lighting in PbrMaterial

EnvironmentMap now has a constructor with an extra parameter indicating
the number of mipmap levels to use for prefiltering with varying amounts
of roughness.
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