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Messages - houska

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Hello, dear Coronauts!

we are finally releasing another daily build of Corona Renderer 6 for Cinema 4D. Apart from several invisible changes under the hood, we were able to include the new environment sampler, which obsoleted the Portal Material. Apart from that, there are a bunch of bug fixes.

We're still improving node editor under the hood, so expect some node editor fixes in the next dailies.

Download link:


Changes in Corona Renderer 6 for Cinema 4D (Daily Build 2020-05-06) (

  • Fixed:
    • Fixed bug where object base material was being rendered transparently when another material was stacked over it with disabled tiling
    • Fixed environment override not being applied to a fully visible Corona Sky
    • Fixed bug where changing sky material visibility didn't affect the corresponding Corona Sky visibility
    • Corona and C4D sun visibility is correctly handled now, both in IR and in non-IR
    • Fixed bug with incorrect mapping of displacement when last material with no displacement uses different mapping than material with displacement
    • IR now reacts to movement of a keyframed camera
    • Fixed black viewport previews in S22
    • Fixed problem with Ray Switcher material not showing in viewport
  • Added:
    • Added new adaptive environment light sampler based on the one in V-Ray
      • Noise clears up to 2x faster in interior scenes in general; up to 9x faster in certain extreme cases.
      • The new solver is now used as default for all new and old scenes.
      • This solver removes the need for portals.
  • Changed:
    • Removed portal material, because it is no longer needed due to new adaptive environment light sampler

Hi Nejc!

This seems to be working fine for me. Here, I'm mixing the yellow color with red, green and blue in the Triplanar Shader and it seems to work correctly. Could you maybe share a simple scene where it fails for you?

Corona Renderer for Cinema 4D - general / Re: Cinema 4D S22
« on: 2020-04-29, 22:58:55 »
Any news related to black material on S22? Viewport is actually almost 50% smoother, but you can't check the true performance through this error.

We found out the culprit and are testing the fix. It will most probably appear in the next daily, which should appear soon...

I see...

Another option that comes to my mind is using a MoGraph Effector to change the color of the individual instances and then reference that color using C4D's Display Color shader, which you can use in you material to somehow colorize the material for instance. But of course, it's a bit different thing than assigning a completely different texture.

Hi, this is an interesting request. I am afraid it's not possible using Corona Multi Shader. You could have some luck with what Cinemike suggests though...

What are you trying to achieve actually? I suppose you can't just group the objects into groups and assign the materials to those groups?

Thanks, djstevanovic ;-)

Glad it worked for you! I'll just add here that uninstall should not be necessary in case you'd like to keep R19 with Corona

Hi! It's hard to tell without knowing the specifics.

What exactly are you comparing? Is the scene empty? Etc...

You can use the license for any version of Cinema 4D, you just mustn't use them at the same time.

Hi dipozzo. So you have bump mapping in some of your materials? It's hard to say what's happening in the scene without seeing it.

This looks like work of some AI denoiser. Have you tried disabling the denoiser or using the Corona high quality denoiser?

Why Cinema 4D is so far behind?

In development compare 3ds max vs cinema 4d.

Hi, this is only an overview of the most important changes in the V6 version. But I agree that the difference between the C4D Roadmap and Max Roadmap can be confusing, so I added all the relevant entries into the C4D Roadmap. It should be up-to date as of now.

I need help Cinema 4D / Re: C4D not using full CPU frequency
« on: 2020-04-23, 17:45:07 »
This is strange, because it's 1000Mhz difference only for two cores. The rest of the cores shows only a difference of 400Mhz. I'm looking at the processor specification here: and it looks like the maximum TurboBoost frequency is 4.5Ghz, so those 4.8Ghz look as some mistake.

I need help Cinema 4D / Re: C4D not using full CPU frequency
« on: 2020-04-23, 14:35:53 »
This looks like automatic underclocking performed by the CPU itself due to use of the AVX instructions. Without them, you might have a higher CPU clock rate, but less effective floating-point calculations, so even with lower clocks, there's a good chance your CPU is doing more work because of the specialized instructions. Don't be bothered with it as long as you're getting good performance in terms of noise converging fast and as long as all your cores are utilized at 100%

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