3

I don't think this will work, for several reasons. You need to be on High Sierra to use CUDA. There is no support in any later macOS eGPU support for MacBooks is centred around the AMD suite, basically the RXes. You're trying to do workstation-grade output on a laptop. Refs: EveryMac - eGPU guide OctaneRender FAQs


2

My initial thought isn't really enough to constitute a full answer, so I apologise for the brevity, but here it is anyway: The most obvious thing to me is the lack of shadows cast by the furniture on the carpets and walls. The furniture looks like it has been cut out, and stuck on.


2

OK, from the comments I think I can see what you are trying to do. All those filters you are adding have basically destroyed the image. Try to keep the edit simpler. Here's my suggestion: Convert the rendered image into a Smart Object, and use the Camera RAW filter to darken the image by reducing the exposure and highlights, to make it like a night scene. ...


2

A literal and correct answer to your question is, "No. C4D render effects are inherently whole-scene," but since there are a bunch of alternative methods that will work, what we're actually dealing with here is an instance of the XY problem. Rather than tell us how you want the problem solved, tell us what the problem is and what "success" looks like, so we ...


1

What aspects of this scene can be changed to improve it? Without going into too much detail...... Lighting - highlights all appear muted Lighting - Few or missing shadows everywhere Lighting - What shadows are present do not adhere to light positions Lighting - Inconsistent cast lighting on objects Lighting - Apparently the ceiling can light, while lit, ...


1

It has too dark foreground. If it has nothing worth to be seen properly, it can be left out. I would put one light more, because the largeness of the room is a good thing to be seen. Your image has colors like the lamps emitted light only at few discrete wavelengths leaving huge gaps in the spectrum. That makes colors faint. That's actually super realistic ...


1

There are 3 questions here... Ideally, how much post-render work would you typically do in Photoshop? 0%, zip, nada... Convey a realism that you think a lot of designers miss? I do not know if a lot of designers... but this is the case of your image... shadows... This is a matter of settings. Current technology on render engines gives you realism ...


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