one little stupid question about mantra

[ok32]

Hello, dear Comminity! I neeed your help. : )

You can see my problem in the attached image. Why does mantra shade it that way? How can I fix that?

I know that the answer in simple but I couldn't find it..

Thanks.

[Hazoc]

Hello, dear Comminity! I neeed your help. : )

You can see my problem in the attached image. Why does mantra shade it that way? How can I fix that?

I know that the answer in simple but I couldn't find it..

Thanks.

Always attach a scene file if you otherwise don't bother to describe what you've done to the object.

It's really pretty hard to say. Use a Facet SOP and "post compute normals" option to fix them ?

Edited April 4, 2011 by Hazoc

[lukeiamyourfather]

Hello, dear Comminity! I neeed your help. : )

You can see my problem in the attached image. Why does mantra shade it that way? How can I fix that?

I know that the answer in simple but I couldn't find it..

Thanks.

Looks like not enough resolution in the geometry. You can see each polygon around the edge of the sphere.

[malexander]

One thing that it could be is a shadow. The sphere mesh has smooth normal interpolation which gives it the illusion of being completely round, but underneath it's still a faceted polygon geometry. The hard edges of the polygon sphere can cause self-shadowing, especially at the silhouette edges of the sphere in light space. You can make the polygon mesh denser to make these shadows smaller, or use a primitive, NURBs or bezier sphere.

If it's not a polygon-based sphere, then I don't know what those artifacts are

[ok32]

Of course! Self shadows.. Why didn't I think about it.

Thank u guys.

And yes, it's just a polygonal sphere. I forgot to mention that. Sorry. : D