Topics

31

[C4D] General Discussion / SSS (poor funcionality) and Volumetrics have confusing parameters

« on: 2022-05-28, 04:43:43 »

Hi Guys,

Let me put my thoughts here, and I would appreciate to be notified if I'm taking the wrong approach for that.

Once I'm coming from Modo, the simple SSS in Corona are very bad IMO. It seems not to respect the light distance you determine to scatter inside the geometry.

Please take a look at this image and observe the SSS effect chocolates usually have. Modo has a very fast and effective SSS and you can achieve good results and no time. No rocket science.



Here you can see how simple the parameters are in Modo. We have on the left just a difuse color and on the right the same color for the SSS material. Look how the SSS color is pretty close to the preview render.



Then, I tried to reproduce the same result with Corona. It doesn't produce the desired effect. Worse than that, the scatter color doesn't make sense to me. I don't see the color we set from it being reproduced.



Ok, so the solution is to use a more advanced property, which is Volumetrics, right? Again, it doesn't seem to do the job either. Mixing the absorption color with the scattering color, Jeez what a mess. The set colors make no sense to me. I really would like to understand the parameter relationship. I understand that Volumetrics works very well for materials with a lot of transparency and viscosity.

Conclusion, I can't get the desired result in a simple way. The appearance looks like too waxy and it's very annoying to find the desired color.

32

[C4D] General Discussion / Isolated shadows/reflections per object in one go

« on: 2022-05-26, 20:36:58 »

Hi Guys,

A little help. Shadow Catcher is a great option to have all the shadows with transparent backgrounds, but... The shadows come baked in with the objects. In order to solve that I use a compositing tag to toggle off the objects off the camera. However, we have to do two renders.

Will it be possible to have them just in one go? Let's suppose we have a plane with 2 spheres on it, and we want to have a render output for each sphere only with shadows and reflections, then layering the Beauty on top for the final image. That way we could use blending modes in PS in order to suit better different background options.

Thanks
Ricardo

33

[C4D] I need help! / Bump channel with multiple noises

« on: 2022-05-25, 22:09:37 »

Hi guys, the only way to add multiple noises one on top of the other in the bump channel is using Mixture Shader?

Seriously, the Layer Shader doesn't work for that? What about the displacement channel?

34

[C4D] Feature Requests / VFB Zoom funcionality

« on: 2022-04-26, 14:56:33 »

Those zoom buttons on VFB are really bad, they act more like scale sizing. We can only double up or down the image size. It would be very nice to have smaller steps or even interactive zoom as we do inside the C4D viewport.

35

[C4D] Feature Requests / Interactive render window resizing feature

« on: 2022-04-26, 14:49:54 »

Hi Guys,

Why does the Interactive render window not resize the image to match the resized frame?. It seems to work on 3DS Max. That's a pain in the neck because if you set your render size bigger than your screen resolution you can't zoom out the IR window in order to fit your screen.