Object with smooth normals indirect lighting render

[mspeer]

I am not able to correct this look of imported smooth normal objects (obj).
Here a Default-Sphere as example.
[attachimg=1]
and here with smooth normals unchecked
[attachimg=2]

Note that only the shadow area is influenced, so there seems something to be wrong with global illumination.

[j meyer]

You just need more polygons on the imported sphere to correct
that look.

[Matt]

The jagged shadows along the terminator can only be improved by using a sphere with more subdivisions. But the render also shows some problems completely inside the shadow - visible grid lines aligned with the polygon edges. They would probably also be improved by increasing the sphere subdivisions, but it looks like there is a problem here with GI that we should fix anyway.

Matt

[Oshyan]

To be more specific, it's probably an issue with GI Surface Details. You can disable that and still get the benefits of GI.

- Oshyan

[mspeer]

It is indeed a Problem with GI Surface Details.

GISD on:
[attachimg=1]

GISD off:
[attachimg=2]

Population_GISD on (The effect is hard to see on most objects, espacially with this high compressed jpg the forum creates)
[attachimg=3]

So the solution is to turn off GISD if the polygon-grid becomes visible.