Author Topic: Im getting longer render times when using long focal lenghts, is it normal ?  (Read 399 times)

2025-05-09, 22:43:01

MetricaVisuals

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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.

2025-05-09, 22:54:01
Reply #1

MetricaVisuals

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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 ..

2025-05-12, 14:56:05
Reply #2

maru

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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.
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us