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[C4D] I need help! / Rays/s actual sooo low and render time soooo high :(((

« on: 2021-09-06, 22:00:13 »

Hi all,
I am rendering a complex interior scene and it took already 24 hours to get 3-4 passes with very noisy and low quality (see attachments).

My specifications are:
- Mac Mini M1
- C4D R21
- Corona 5
- File Size ca. 1 GB

In previous projects I did not have so crazy problems. It is the first time.

I tried already that:
- cleaning up the scene in deleting all unnecessary objects and materials
- There are some complexer materials like the woodstamp concrete with displacements…or the rug…or 5 spotlights with an IES-Light. But can that be the problem?
- checking all portal light objects that they fit perfectly into the window holes
- using the default render settings with the GI/AA Balance
- Yes, I have a lot of lights there…also in the multi-pass lightMix Channel…should I reduce that to a minimum and/or use instances?

General questions:
- Could it be that Cinema R21 and Corona 5 are too "old" to do the job…and I should update it?
- Or/and are there mistakes I did so that it slowed down so massively?

I know that computers are only ever as intelligent as the person sitting in front of them! So please help me!! ;)))

Thanks!!
Best Doc