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Hi everyone,

I work on an interior / exterior scene. In fact I've got an animated camera goes outside to inside.
Outside I use a physical sun and sky. Inside only emetter (no windows so no physical sun and sky influence).

I worked on the interior firtst so I desactivate the physical.
But when I activate it to work on the outside shading a strange dark grain appear inside.

Any idea ?


Here a render in SL18... not normal for this SL value.

Any SSS materials in the scene? Difficult to tell, if you can please send me the MXS scene (Pack&Go) and I can take a look.

No SSS in the scene.
I finally cheat to avoid the grainy pict : suppress the physical sun and sky and simulate its lighting with common emitter.
It works fine now for my scene...

But I would like to understand... So I will send you the scene with maps tomorrow
Thx in advance.