[Radiance-general] Objects with plastic material in IBL scene

[Tarik Rahman]

Hi
Does anyone know why inserting a diffuse object in an IBL scene, such as the
red_plastic sphere in the Debevec tutorial does not reflect light properly,
i.e. renders as black? It works sometimes and other times it doesn't, I don't
understand why. The metal spheres such as the gold and steel ones and the
crystal  sphere all render perfectly but sometimes (not all the time) any
object with plastic material doesn't render properly.

Tarik
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Tarik Rahman
PhD student, Institute of Perception, Action and Behaviour
School of Informatics
University of Edinburgh