something strange happens

[oscar lorenzo]

As you can see in the attached images, the more zoom the vray camera has, the more circles appear in the distribution of forest objects.
I have contacted Itoo support and everything seems to be OK.
any ideas?

[fixeighted]

You'll notice that the circular patttern's centre is always at the centre of the frame.

My guess is that it's because it's a directly top down view, which can cause problems in other scenarios as I recall.
So some rotation of the view will greatly eliminate the issue.
Someone else here can probably state exactly why it happens but that may be a solution meanwhile

[hermit.crab]

This happens because the scene is too far from the origin (your camera is floating 8km in the air), which can lead to raycast errors. Divide the camera Z coordinate and Focal Length by 10 and you'll notice good results.

[oscar lorenzo]

thanks for the answers, I'll keep that in mind

[oscar lorenzo]

Using 200mm the circle is very appreciated, the curious thing is that it only passes through the forest objects...
Ideas ???