Chaos Corona for 3ds Max > [Max] I need help!

Long Render Times with 4080 Super + Ryzen 9 7950X – Is This Normal?

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Mohd Abosido:
Hi everyone,

I'm currently rendering a scene in Corona Renderer 12.2 and I'm experiencing what feels like unusually long render times, and I'd love some feedback on whether this is expected or if there are optimizations I should be considering.

Here are my system specs:

GPU: NVIDIA RTX 4080 Super (I know Corona is CPU-based, but just listing it for context)

CPU: AMD Ryzen 9 7950X

RAM: 128 GB DDR5

Renderer: Corona Renderer (latest version)

Scene complexity: ~20 million polygons

Render resolution: Square ratio of 4880 × 4880

Render settings:

Noise level limit: 5%

Pass limit: 100 passes

UHD Cache enabled (default settings)

The issue is that each image is taking 4–5 hours to render. I'm unsure if this is normal for a setup like mine, or if something in my scene or render settings might be causing inefficiency.

Is this render time typical for this resolution and scene complexity? Are there any suggestions for optimizing performance without sacrificing too much quality?

Appreciate any help or insights!

Thanks in advance,

Steven_IAS:
What is the scene you are trying to render? Is it an enclosed environment with many lights and cuastics? If so, then that would be why. If it is an exterior with a car sitting on a road, then that is way too long.

Mohd Abosido:
Its an interior scene, I wouldn't necessarily say it has lots of lights and caustics there around 12 lights in the scene and few objects with glass material applied.

Aram Avetisyan:
I have 7950x and I don't remember doing any render on it for over an hour. I would say the scene is not optimized (or setup) well. Maybe there is a small part in it which causes the noise level to stay high. But 4-5 hours on a 7950x is too much, even for high resolutions.

Mohd Abosido:
Thats what I thought ! any recommendation on how to optimize the scene or any setups I can work on

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