From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 25 Apr 2018 11:13:26 +0000 (+0300)
Subject: Use an explicit material slot name in RenderPass
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=cfd4d36c2b6b6095ada3aef8082e5d409a233a21;hp=cfd4d36c2b6b6095ada3aef8082e5d409a233a21;p=libs%2Fgl.git

Use an explicit material slot name in RenderPass

The previous method of overriding materials with pass name seemed a
bit too hacky to my liking.  This is more in line with how overriding
textures works.

The Blender exporter now expects the base technique to have a material
slot "surface".
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