4 and 5 are render directly into VRayLightMtl and I don’t see any filtering issue.
VRay 2.40.03
No GI
Filter Maps for GI is ON
I’m using vray universal settings (the latest one)
The problem seems to came from the bump slot into the VrayMTL and filtering in general. (But I’m not a specialist )
I tried the 3 differents type of filtering into VRayHDRI map and nothing have changed.
I tried to plug a 3Dsmax bitmap into bump slot with the original PNG, that I used for creating tiled EXR, and the problem is close to the VRayHDRI one.
As you can see the filtering is correct, but not in bump slot.
That seems odd; can you get me the scene? Also, I’m not sure if we added the bump delta scale parameter to VRayColor2Bump in 2.4, but reducing it might help if it’s there.
So this is not a bug; your bump texture is simply not uniform. If you blur the texture a lot you will see that one side is brighter than the other especially near the center, which causes the imaginary bump surface to wobble about, causing the cross-shaped highlights. The effect is always there, but low blur values make it less visible.
Also, I didn’t notice that you have mapped anisotropy. Setting the anisotropy axis to “map channel” might help too. But it would be good to use a better bump texture.
Vlado is usually very busy and sometimes he just do not have enough time to resolve all the issues.
Would it be possible to send that scene along will all assets to support@chaosgroup.com
Please include a link to this thread into the mail.
Thank you very much in advance.
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