aliased hotspots from vray lights?

[jpl1040]

I've noticed if a VRay light is visible in the camera, or if a light hits something too hot, a kind of glitch appears even if clamp colors is on. For example the highlights in the car's headlights in this image:

http://www.trinity3d.com/ebay/corvette_test01.jpg

(high res - 500kb)

This was lit with VRay Sun and I saw the other thread about white dots, but I was wondering about the aliasing also. When I used a VRay dome light and let it be visible in the scene, it seems to wig out vray in the scene.

thanks for any tips on this -

Jim

[DanielBrew]

Have you got sub-pixel mapping checked as well?

Dan

[jpl1040]

Have you got sub-pixel mapping checked as well?

Dan

I will check that and re-render, thanks for the note. The manual doesn't really mention this issue in the section on Sub-pixel mapping, but reading around the forum it seems that is the main thing it takes care of.

[DanielBrew]

If you hadn't got it checked then I think that will cure the black line around the highlights. There is something about this in the manual somewhere under migration to 1.5 I think.

Dan

[instinct]

another problem could be your imagefiltering. If you´re using any of the filters that have negative values in their filtercurve (sharpening filters like catmull rom) then the extremly bright spots caused by a sun highlight will cause trouble. Try switching to Area to test.

Regards,
Thorsten