Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: MetricaVisuals on 2025-05-09, 22:43:01

Title: Im getting longer render times when using long focal lenghts, is it normal ?
Post by: MetricaVisuals on 2025-05-09, 22:43:01

Hi, im noticing very long render times on a particular project were i have a couple of long focal lengts 90mm+
Is it normal? maybe less photons can reach the camera position or something else? on a normal camera or scene i get something like 5M Rays, but on these scenes i get 800.000k
I could share the scene on a private link if needed.

Title: Re: Im getting longer render times when using long focal lenghts, is it normal ?
Post by: MetricaVisuals on 2025-05-09, 22:54:01

I found the cause for that particular scenes, it was a VDB cloud thats in the sun path.. turned off that and the rays shoot to 7M ..

Title: Re: Im getting longer render times when using long focal lenghts, is it normal ?
Post by: maru on 2025-05-12, 14:56:05

If you ever have an issue like this again, please submit a support ticket at https://support.chaos.com/hc/en-us/requests/new
We will check the scene and let you know about our findings.