Camera correction modifier

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

Hi
when i’m using Camera correction modifier for my CAMERA and then rendering i have this WARNING message (in vray MESSAGES WINDOW):
[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[
warning: Camera matrix is not orthonormal and ‘Max-compatible ShadeContext’ is ON
warning: Standard materials and lights may shade incorrectly
…
…
warning: 0 error(s), 2 warning(s)
]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]

i can’t understand this is real danger message or not … where is the problem and how to correct render with CAMERA CORRECTION?

10x in advance

2

Hi and welcome to the Forum !
This warning message tells you exactly what it says, that the matrix is not correct.
This however can lead to some serios mistakes, like Splotches, not correct shadings etc.

Solution:
in the VRay::System menu, check OFF the the
< MAX Compatible ShadeContext > and it will be OK !

Best regards,
nikki Candelero

3

10x

sometimes my materials looking different in WINDOWS PREVIEW (textures) and after rendering (maybe problem is from camera correction or COLOR MAPPING)?

4

That can be a reason, Yes. Also any type of Gamma enabled can also lead to differences in the ME and the render output.

Best regards,
nikki Candelero