How to render Blowup with V-Ray6

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

I wonder, what I’m doing wrong here. I only got region render.

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2

Hi, this is similar to a region rendering. It is an area that is always with the same aspect as your frame and takes what is inside that area and renders it with the resolution that you have in you output size dialog.

3

For me it worked like region render. So I scaled the render settings up and rendered as a reqion.