reflection problem

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

Settings of brown material for reflection.
    Fresnel reflection, IOR 1.6 and reflection is very low.
The problem is this line I get, like there is no reflection close to the camera and than it sudenly starts.

I use vray 1.49.25 but it happend to me once on 1.47.03 so it doesnt matter that I use beta build now.

2

You might try lowering the cutoff threshold to zero in the material options.

3

Thanks, I think that solved the problem.
But what that option means. Is that something like cliping plane for camera.

4

Cutoff - this is a threshold below which reflections/refractions will not be traced. VRay tries to estimate the contribution of reflections/refractions to the image, and if it is below this threshold, these effects are not computed. Do not set this to 0.0 as it may cause excessively long render times in some cases.

Best regards,
nikki Candelero

5

Nikki,

can you be more specific on what conditions could cause trouble at a thresh. of zero? I have done some testing and have not seen that occur. I was considering setting it at zero for all our mats to save from the surprise of cut offs. Would a setting of say .000001 avoid the long render scenario?

Thanks,