A decoded RGBA8 surface texture attached to a mesh (issue #961).
Sampler wrap from IfcSurfaceTexture.RepeatS/RepeatT (true = repeat).
IfcSurfaceTexture.RepeatS/RepeatT
width * height * 4 bytes, row-major, top-down, straight alpha.
width * height * 4
A decoded RGBA8 surface texture attached to a mesh (issue #961).