Vray 5 C4d animation with VFB

[cam_910]

Hi I am a long time Vray for max user and just using Vray for c4d for a job. Struggling with outputting an animation sequence...

How can I render an animated sequence using the Vray Frame buffer (using 'vray image output system ' in the settings, as a multichannel exr with corrections baked in ) each time I can only get it to render a single frame if I hit 'render with production renderer'...?
In render settings - The output is set to render the full fame range, C4d native render setting 'save' is disabled

If I add to render queue it renders, but the exr is not multichannel it saved elements separately....

Sorry, I'm very confused! Can anyone give me a simple workflow step by step[.

Thanks

[haniel1107]

HI,
just made screenshots of my settings... maybe it helps if your compare some main settings..
I have it like this when using Vray CPU, animations and rendering with the VFB, withput multipass

(Deactivate "Using V-Ray output system")

[haniel1107]

And for multipass...
Screenshots, plus: Render Elements - V-Ray 5 for Cinema 4D - Chaos Help (chaosgroup.com)

[cam_910]

Hey thanks!....so by the looks of it you are just saving via the regular C4d settings. I was under the impression you could forgo all that and just save a multchannel exr through the vray settings, with all render elements embedded (much like you do in 3ds max) ....the issue for me is when I do that it just saves one frame.

[haniel1107]

Hey thanks!....so by the looks of it you are just saving via the regular C4d settings. I was under the impression you could forgo all that and just save a multchannel exr through the vray settings, with all render elements embedded (much like you do in 3ds max) ....the issue for me is when I do that it just saves one frame.

As I know, through vray settings works only for stills, not for animations. But I'm sure someone will correct me here if I'm wrong ...

[deyan.hadzhiev]

Hi cam_910, can you share what settings are you using (for the output). Also it might be helpful if you enable more verbose log (from Preferences -> Renderer -> V-Ray -> Log Options -> Verbosity) and send us what V-Ray reports.

Hey thanks!....so by the looks of it you are just saving via the regular C4d settings. I was under the impression you could forgo all that and just save a multchannel exr through the vray settings, with all render elements embedded (much like you do in 3ds max) ....the issue for me is when I do that it just saves one frame.

There is no limitation for still frames on this - can you also try to explicitly add a frame token in the name (like in the screenshot).

[cam_910]

Its strange I restarted and it seems to be working now...weird. I was trying out GPU I have now switched back to CPU so that may have had something to do with it...?

On another note, where is the ambient occlusion button in c4d? ....in max its under the GI tab. Am I missing something?

[shaio]

Hi cam_910

On another note, where is the ambient occlusion button in c4d? ....in max its under the GI tab. Am I missing something?

This option isn't available any more (It will be removed from V-Ray for 3Ds Max as well). You can use the ExtraTex Render Element with a V-Ray Dirt texture attached inside to generate an ambient occlusion pass as a workaround.

[RwVision]

deyan.hadzhiev Another question, to not start another topic:

How can I render out an animation in PV, and save .vrimg's at the same time?
I could do this in V3.7, now it seems like vray Output cancels PV rendering.

Why?

VFB does not have any animation preview support.
I can't render out an animation and inspect it while rendering, which in the end goes into standalone denosing process - which needs .vrimg.

Furthermore - In 3.7 I could simultaneously save .exr files with c4d, which I could use in post, before denoising and extracting them with vrimg to Openexr app.
There should be an option to save the RGB color pass in separate .exr file.

[deyan.hadzhiev]

Hi RwVision, using V-Ray output should be usable with PV rendering.

How can I render out an animation in PV, and save .vrimg's at the same time?
I could do this in V3.7, now it seems like vray Output cancels PV rendering.

The V-Ray output system does not stop you from using PV. Additionally, you may use both the standard PV output with the "Save" options enabled along with the V-Ray one, as long as you make sure that the file names are different, to avoid one output overriding the other.

Furthermore - In 3.7 I could simultaneously save .exr files with c4d, which I could use in post, before denoising and extracting them with vrimg to Openexr app.

This should still be possible - the tool is installed in the V-Ray plugin's "tools" subdirectory.

There should be an option to save the RGB color pass in separate .exr file.

This has been discussed also in this forum and it is considered to be implemented in the future.

[RwVision]

Thanks deyan.hadzhiev !

Seems to work, but only when we render out through PV - when rendering through VFB, cinema then states, there is no save output path.
I thought that when using Vray Output System, we must use the VFB render system.

It's a little different issue, but through VFB and mirroring to PV we could have control over the locked bucket starting point and would be able to save some of the vfb comp effect, along with pv preview.

[RwVision]

Just tested - When Vray Output System is on, PV renders raw image, but C4D saving system actually saves .exr file already affected by the VFB corrections.

Is this where the "Apply VFB Compositing and Color Comp" option comes in play?
(which I posted as another topic - does not work with rendering via VFB)

Why the image can't be mirrored then into VFB like in V3.7?

[deyan.hadzhiev]

Is this where the "Apply VFB Compositing and Color Comp" option comes in play?
(which I posted as another topic - does not work with rendering via VFB)

Yes, this option was there to allow applying the post effects to the RGB output of the PV. For the V-Ray output, it has effect only for the color corrections (when saving .vrimg or .exr) - the post effects are controlled from the VFB when V-Ray output is used.

Why the image can't be mirrored then into VFB like in V3.7?

This can be answered for two different cases:
1. Mirror after the render is complete - this is possible, but still not implemented.
2. Mirror while the render is running - this is a bit harder to do, because C4D does not limit the number of concurrent running renders, while the VFB can be used only with one render. While possible, we have not yet considered implementing this, as it may require more effort to achieve.

[RwVision]

Thanks Deyan,

This can be answered for two different cases:
1. Mirror after the render is complete - this is possible, but still not implemented.
2. Mirror while the render is running - this is a bit harder to do, because C4D does not limit the number of concurrent running renders, while the VFB can be used only with one render. While possible, we have not yet considered implementing this, as it may require more effort to achieve.

First one seems useless, since c4d outputs VFB image with post effects. But the second could not be solved by rendering via VFB, and then mirroring to PV at each frame end?

That would give us full control, when rendering. (Post effects should be locked for export though).