Topics

1

[C4D] Bug Reporting / Decimals in VFB's White Balance field

« on: 2025-04-17, 10:17:02 »

Hi,

Could you ditch the decimals on the white balance value in the VFB ? It's not really useful in this context and more importantly the value is truncated because of the excessive number of figures. And the width of the tool panel can't be modified.

Thanks !

2

[C4D] Bug Reporting / Clamped viewport when using OCIO

« on: 2025-03-25, 11:05:06 »

Hi,

I'm experimenting with OCIO in C4D and the VFB(2) doesn't show the correct result, like it's clamped.
To be clear it is clamped since I'm using the default view transform of C4D, but in a weird way, like a veil on top of the image that makes it dimmer :



EDIT : Even with the Raw view transform the image is clamped :


BTW the VFB doesn't show the view transform but I guess it's expected since it's managed by Cinema ?

Also I noticed that the raw values picked in the VFB are always clamped to 1,47, is there a particular reason for this ?

3

[C4D] Bug Reporting / Gamma issue with viewport rendering

« on: 2025-03-20, 14:49:07 »

Hi,

I've just upgraded to C4D 2025.1.3 from 2024.5 and use Corona 12.1H1, but I have something like a gamma issue when rendering in the viewport compared to the VFB :



I'm not using OCIO and have reset the render settings. The problem doesn't occur with Viewport IR.
Scene is attached.

4

[C4D] Bug Reporting / VFB 2 - Can't toggle the next active field with Tab key

« on: 2025-03-20, 14:27:20 »

Hi,

I'm trying to get accustomed to the new VFB but noticed another downgrade from the previous version : it doesn't support the Tab key to change the active item in the tonemapping stack. Could you fix it ?

5

[C4D] General Discussion / C4D's VFB responsiveness

« on: 2025-03-20, 11:30:43 »

Hi,

I've always felt that the Max version is a bit snappier than the C4D one, but it's something that is a bit hard to show.
I've just noticed that it's clearly visible in the stats panel with the VFB refresh time value, on a simple lookdev scene Max is almost 4 times faster than C4D, consistently :

C4D

Max


C4D refresh times are between 22 and 30 ms, Max's between 2 (!) and 8ms.

Why is that?  And is it something the devs can adress ?

Thanks !

6

[C4D] Bug Reporting / IR lags with VFB2

« on: 2025-02-20, 19:02:40 »

I noticed some significant lags during IR sessions with the VFB2, and not with the old one. It's annoying, am I the only one ?

Win10 22H2 / C4D 2024.5.1 / Corona 12.1

7

[C4D] Bug Reporting / Corona Bitmap + Triplanar

« on: 2024-12-04, 18:45:07 »

Hi,

Another weird bug with the Corona Bitmap shader and the Triplanar shader. Native Bitmap gives the expected result regardless of the setup, but Corona Bitmap seems to rely on UVs if the object has a UVW tag, thus delivering weird result.

EDIT : nice demo of the IR going south at the end

8

[C4D] Bug Reporting / Corona Mixture Shader - Level parameter with bump

« on: 2024-12-04, 17:07:18 »

Me again !

Level parameter doesn't work when the Mixture Shader is plugged into bump channel, see below :

9

[C4D] Resolved Bugs / Corona Bitmap + Mapping Randomizer

« on: 2024-11-27, 18:44:04 »

They STILL don't work together on 12H2, could you fix it at some point ?

10

[C4D] Bug Reporting / Corona Color Correct

« on: 2024-11-18, 15:21:21 »

So is it me or Corona Color Correct doesn't work with Corona Bitmap and/or Corona Mixture ?

11

[C4D] Corona Goodies - User Contributions / Proxify

« on: 2024-09-24, 09:39:49 »

I've started playing with Corona Proxies and found the workflow a bit cumbersome, so I've made a script that takes care of the little details to make things faster.

Select the object to convert to a proxy and run the command, that's it.

Let me know if you're using it!

12

[C4D] Feature Requests / True material copy in the material manager

« on: 2024-08-01, 15:58:30 »

Hi,

I often duplicate materials in the Material Manager with the Ctrl-Drag command and in this context I DON'T want to keep the links with the original material, just a plain copy.

Having to open node editor, dragndropping the material, selecting the entire node tree and drag-copy to get a real copy is cumbersome and add so much friction to the workflow.

Would it be possible to get the ability to duplicate the materials without the links to the original material's nodes ? Ideally as a new setting in the preferences.

13

[C4D] I need help! / Parsing...

« on: 2024-07-24, 14:30:14 »

Hi,

Is it expected that Corona parses the scene each time when doing these things :

- modifying the region size and position when it's in use
- changing a light intensity and its position and direction ?

Genuinely asking since it adds a significant delay to the IR while things are already in memory.

Thanks

14

[C4D] Daily Builds / Corona 12 RC1 General Feedback

« on: 2024-06-24, 10:18:55 »

Hi,

Thanks for the latest build. I did a few quick tests and I hope the feedback below will help fine-tune the product before release.

Windows 10 22h2, Cinema 4D 2023.2.2

VFB 2.0
- Changes to Tonemapping settings aren't registered if Enter is not pressed (regression)
- Tab key to move from one parameter to another doesn't work (regression)
- Tools panel width can't be modified (regression)
- Can't scroll anymore between the Pass with the mouse wheel (no big deal but I like to navigate between items like this) (regression)
- Stop / Render buttons blink when orbiting / panning / zooming
- New icons are nice and clean but IMO really BIG. Could be there a compact version to gain a bit more vertical space for the image ?
- Could the Render and Render IR be two separate buttons ?
- Scaling the VFB window to image dimensions by double clicking on the image doesn't work anymore (regression)
- Zoom shortcuts don't work on my side ( Ctrl +, Ctrl -, Ctrl 0)

Solo Mode
- There is a bit too much delay when toggling the solo mode, whatever the scene size is (around one second in an empty scene in the worst case on my side)
- IMO the isolated texture should be rendered as if it was plugged into the self-illumination channel. Also it shouldn't be affected by the tonemapping IMO.
- Could be nice to have the Solo function as a menu command, in order to turn it into a shortcut. Also it would allow us to disable the solo without having to go back to the solo-ed node, much quicker.

Other
Long standing bugs still here :
- UVW Channel override in Corona Bitmap doesn't work
- UVW Channel override for Anisotropy Orientation doesn't work
- Triplanar still not supported in the Bump channel if a C4D shader is in the stack

Also it would be handy to have some shortcuts for the VFB commands. Some ideas :
- Save image
- Trace render region
- Remove render region
- Pick object
- Pick focus
- Lock IR resolution
- Zoom increment ( 100 200 400, one command for each ratio)

15

[C4D] I need help! / Low Rays/s and general slowness

« on: 2024-05-16, 19:06:08 »

Hi,

I have the feeling that Corona is becoming slower and slower with each release.

That's probably my fault since I like to put always more stuff in my scenes with all the bells and whistles. To be clear I keep things simple in the sense that I don't fake anything and go straight to the point (more or less). But I'm using all the features Corona has to offer (anisotropy, sss, displacement, no fake lighting etc. ) and it's really convenient but I'm beginning to feel a bit too much the price to pay for that simplicity.

What is your typical ray/s value in your interior design projects ?

I'm often around 2M, but it also often goes as low as 1,5M (on an OCd 5950X). Typical .c4d file size is around 1GB, it can be managed but IR is obviously very far from interactive at this stage, and even tests / regions renders are painful to deal with ( parsing times hellooooo). Copy pasting objects in a new scene to adjust a material look is second nature to me now.
For final rendering, from 2h for the best case scenario to 7h/8h sometimes, with an average time of 4h at 4K - 4/5% noise - 100 passes.

Not a rant, I know my projects are heavy and that performances decreases according to scene complexity but this slowness is distracting me more and more from the creative side of my work and I'm getting tired of it. I guess using Blender on the side for the modeling doesn't help since Cycles is very responsive and the comparison hurts (but I'm not getting into that debate, it has its own issues too !).

Did you ever feel that way about your workflow, your projects? If so how do you manage it, do you have any workaround? Should I upgrade my hardware ?

I already know about this article and this topic, but it hasn't changed much.