Critical Mass :: 3D Action Puzzle Game

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Forum Index - 3Dimensional - isolated white artifacts in vray - help please

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-efekagan
Junior Member
efekagan
4 years ago
Hello, I am interior architecture student from Istanbul

I never use vray sun, but I do change "overwrite environment" segment
in vray menu. Since ths was an interior scene; I just changed color of it to white with no HDRI. Also I did not touch reflection overwrite just left it default.



My first render was low subdivision
[IMG][Link to img.photobucket.com][/IMG]

then I thougt maybe increasing sub division values to 20 - 30 would help , it helped but I still got left with somewhat isolated white artifacts

[IMG][Link to img.photobucket.com][/IMG]


and the last one is this non anti alliased reflections:
[IMG][Link to img.photobucket.com][/IMG]

nearly all my reflections got this non anti alliased reflections. Last scene is with HDRI

help me please

+Steve Martin
Moderator
Steve Martin
4 years ago
I'm not sure about the problems with your interior scenes, but the jagged edges on your reflections may be caused by the highlight pixels being too so much brighter than the non highlighted pixels that the render is unable to blend them like it is supposed to. To fix this go to the vray colour mapping area and tick the "sub pixel mapping" and "clamp output" boxes. I wouldn't suggest using this option if you are using hdr images, because you'll lose all the hdr information. In that case your best option would be to blur the highlights slightly which is what a real camera would do.
[Link to www.3dprevis.com]

-Tyson
Senior Member
Tyson
4 years ago
Its hard to tell but it looks like the white speckles are from glossy reflection highlights. Have you used glossy reflection in that material? if so up the subdivions to 30 or something. usually to problem solve these things its good to put a default vray material in the override box under global switches to limit the variables and check its not your materials causing the artifacts.

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