Live viewer vs picture viewer difference

[adrencg]

This is the classic question every new Octane user has...but running through previous posts hasn't helped me. I'm using Aces workflow following the Greyscale Gorilla 5 minute video on how to set it up properly. I've also looked at this video https://www.youtube.com/watch?v=ZIXceP3CKWI That went fine. But my renders are coming out with the emission pumped higher and the blacks are darker. How can I make sure the image saved for After Effects is EXACTLY like the Octane Live Viewer? BTW, I'm using bloom also.

One other thing...why does saving the image with the Octane render buffers give me an empty image? But the regular C4d save actually imports fine into after effects.

[adrencg]

Here's the scene file with my Alembic frozen (for smaller size), in case anyone can look at the render settings.

[adrencg]

Another question....

What is the relationship between the Camera Imager in the Octane settings vs the Camera Imager in the Octane camera? Does one override the other? Meaning, if I have camera imager turned on in the camera, does that mean it overrides the settings in the live viewer?

Same for post effects. How is it possible to have different post effects in the settings and on the camera panel? Which one comes out in the final render?

[james_conkle]

Not at my WS but I’ll try my best here from memory so take it with a grain of salt

C4D currently doesn’t do any color management on its own so it’s displaying uninterpreted ACEScg in the picture viewer. As far as I’m aware there’s no way to get that working properly without effecting the final export settings but if you want to export a quick still image that’s mapped to sRGB you can do that in the Octane live view and export it as a png with the Out: sRGB OCIO transformation selected.

To make sure your export will be properly exported to AE make sure you’re exporting ACEScg exr files and set the OCIO settings to automatic. Your files might have been coming in black with the EXR(octane) process if you used the option that layers multiple passes into one file and that top pass was empty.


As far as camera imager and post settings go I’m unsure as I try to use the global settings but I would imagine the tags if set to non zero values would override the global settings.

[james_conkle]

Just took a look at your file and I would change the following things.

Render Settings:
Save> Change "Image Color Profile" from sRGB to Linear
Save > Un-check "8 Bit Dithering"
Octane Renderer> Change "Buffer type" from HDR (Float 16-bit) to HDR (Float 32-bit) note you'll still save 16-bit EXR with your settings this just determines the internal calculation I believe.

Making these changes would bring it close to my settings that I use for my ACES workflow which works across application that use OCIO. This still won't get Picture Viewer to display the image properly but if you were to use settings that made the image appear properly there it wouldn't export as an ACEScg image so I've been avoiding the PV until Maxon brings in OCIO support.

[adrencg]

Thanks for those tips.