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→dif.spec.oclu
Shader is combining two multiplied opaque textures with third inverse-vertex-alpha (iamod) texture. The third texture should represent decal/dirt/wear layer where texture alpha channel and vertex alpha controls how strong this decal application is. Vertex color alpha with value 0 will apply the most and value 0.5 won't apply third layer at all.
=== dif.spec.oclu === Behaves in similar way as [[#dif.spec.mult.dif.spec]] but the second texture in this case is using gray-scale image (only one channel) which results in better performance. General usage of this shader is as recognized as using [[#dif.spec]] with "ambient occlusion" texture.
=== dif.spec.oclu.add.env ===
=== dif.spec.over.dif.opac ===
