Glossy reflections below 0.75 - seeing normals of model.. HELP!

[johnjoe]

Hi,

If my glossy reflections go below 0.75 then I begin to see the normals of the model..

Is there a work around other than using a different render engine? This seems to be a major problem.


Thanks!


Joe

[bigbossfr]

Hi,
Did you try to enable "Fix dark edges" on the VRayMtl ?
Or play with "Soften edge" attribute ?

[johnjoe]

Hi Damien ,

Unfortunately neither of those fix the problem.

thank so much for your help.

If anyone has any more ideas or suggestions. Please let me know.

Thanks!

[instinct]

Do you have strong bumpmapping?

[johnjoe]

Nope! I've tried to remove all bump maps as well.

if you experiment with a new maya scene. Just add sphere with an area light you'll see the problem by just lowering the glossiness below 0.75...

This is a real pain

[bigbossfr]

Perhaps the Cutoff Threshold ? (set to 0)

I will try tonight (i have no VRay here )

[vlado]

Try to add subdivision to the object; or try using a different BRDF model.

In general all render engines I've seen have similar issues on low-poly models where the smooth interpolated normals deviate significantly from the shape of the underlying geometry; sometimes the issues are more obvious, sometimes less, but no render engine has been able to avoid them completely in all situations.

Best regards,
Vlado