Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => Topic started by: Drawehn on 2025-06-16, 11:43:24

Title: CXR saves in half the resolution
Post by: Drawehn on 2025-06-16, 11:43:24

We have the weirdest issue. We are sending an image to render in 4000px (we are using backburner) and it renders alright in 4000px but when we open the saved cxr it is only half the resolution (2000px). Is that a bug or some totally buzarre feature that we accidentally discovered? We are using corona 12 Hotfix 1.

Title: Re: CXR saves in half the resolution
Post by: Drawehn on 2025-06-16, 12:12:25

We fixed the issue somehow but i still have no clue what caused it.

Title: Re: CXR saves in half the resolution
Post by: maru on 2025-06-16, 17:32:35

My bet is the AI upscaler in the Scene tab - https://docs.chaos.com/display/CRMAX/Scene+Tab#SceneTab-ProductionUpscaling
It does exactly that - renders your image in half width and half height and then upscales it to what you have in the 3ds Max output settings. If you save a CXR, it will be the original non-upscaled data.