Differnt lighting on different resolutions

[jonas_schneider]

Hello guys,
I encountered a strange problem that I dont really have an explaination for it.
I want to render following part, I noticed that the higher I go with the resolution of the rendering the more does the lighting look different. There is a quick example in the attachments

The lower resolution clearly burns out faster than the higher resolution. What causes this difference? Is it Light Cache related?

[boyan]

Hey, Jonas,

Thank you for the report! I think this might be a bump map or normal map behavior could please check it for us? We will need more details for the final conclusion and decision-making.

Cheers,

[shaio]

Hi jonas_schneider ,
A few years back I stumbled upon the same issue. It's related to the way bitmaps are filtered, and it's not only a V-Ray issue. Most rendering engines have this as well. You can try turning off the bitmap filtering, and you should get closer results between the two images. If you're interested, I can try to gather some more technical information about this and share it with you.