Vray 3.00.07 DistanceTex artifacts

[katho3d]

I´ve already reported this some time ago and this issue is still there in Vray 3.
Sometimes VrayDistanceTex produces some unwanted artifacts. I´ve attached a scene and an image that explains the problem.

[tashko.zashev]

Hi,

Thanks for sharing the scene.
The Distance map has some limitations and issues that we have to fix, but I think for this case you could limit those artifacts by few adjustments. Please check the screenshots below for more details.

[katho3d]

Thanks! We have got this data from our customer and we know that they are far from perfect. Some of this objects are much more complex and it´s nearly impossible to fix all this problems by hand. Is there a way to make the DistanceTex map less sensitive to this kind of geometry errors?

[tashko.zashev]

We will see if we can do something on that regard.
Meanwhile you can try to add Relax modifier to the mesh used to generate DistanceTex with the following settings:
Relax value - 1
Iterations 2
Keep boundary - ON

It should fix a lot of the problems generated by this geo.

[katho3d]

That would be great, thanks again!

[katho3d]

Hello, seems like this problem still existing in the latest version of Vray 3.20.03.
We are trying to use DistanceTex in many of our projects but even with very simple geometry it produces artifacts.
I´ve attached a stripped down scene. The project is huge (200m² area, 8 kilometers of road) and the idea was to add road markings with VrayDistanceTex, but this doesn´t work, there are artifacts all over the road.
Could you please take a look at this? Thanks in advance!

[tashko.zashev]

Thanks for the file. The DistanceTex artifacts was reproduced here and I've forwarded the scene to our developers. When we have any news or a fix, will post here.

[tashko.zashev]

We did a lot of improvements to the V-Ray Distance Tex map for the next service pack release and the rendering issues reported here should be solved.