Refactor: Renamed VertexIllum as BiasIllum; applied pimpl; relocated
As one might determine from the rename it is no longer assumed thatthe illumination data is used only with a map vertex.
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Refactor: Renamed VertexIllum as BiasIllum; applied pimpl; relocated
As one might determine from the rename it is no longer assumed that
the illumination data is used only with a map vertex.