aa flickering at edges to very bright materials

V-Ray V-Ray for 3ds Max Issues
1

hi

i have a problem with edges that are sampled with adaptive subdivision 1-3

at edges to very bright materials i get flickering…

any thoughts?

thanks thomes

2

Can you post some images or what you think might show us better.

Best regards,
nikki Candelero

3

hi nikki

here 6 following pics from a raw sequence where you can see the problem.
and a picture of the construction.

rendered with rc3 adaptive subdiv min1 max3 ctlrthresh 0.1
the rest that i´m not allowed to show is okai with this aa






any ideas

thanks for help
thomes

4

…now as i had this closer look to the construction of the light it may be a kind of double face problem…maybe i shoul´d try it with higher secondary rays bias…

other idea?

thomes

5

You might try checking “sub pixel mapping” and “clamp output” in the color mapping settings. This should fix AA issues at very bright edges.