Z Buffer in Fusion Tweet

[3dreamstudios]

I'm messing with adding fog to my scenes with Fusion. But the depth buffer image black and white seems to be reversed from what Fusion is wanting. I can't imagine this is a fusion or an octane issue....it's most certainly a user issue! me. How do you guys setup your z-buffer exports/saves, and do you use Fusion?

[3dreamstudios]

How do I render out a main beauty pass (as if nothing is separated out) just a regular render everything included in image. And then also a seperate file with ZBuffer in one render setup scene file?

[juanjgon]

Hi,

Sorry, I've no experience with Fusion, so I'm sure how to resolve your question about the ZBuffer. I suppose that if the buffer is inverted you could invert it using a Fusion node.

About your second question, as soon as you enable the z depth pass and configure the passes file options, you should get always the beauty pass along all the other selected buffers, unless you select a multi-layered EXR output. In this case all the passes are going to be including in the same EXR file.

Thanks,
-Juanjo

[3dreamstudios]

Hi,

Sorry, I've no experience with Fusion, so I'm sure how to resolve your question about the ZBuffer. I suppose that if the buffer is inverted you could invert it using a Fusion node.

About your second question, as soon as you enable the z depth pass and configure the passes file options, you should get always the beauty pass along all the other selected buffers, unless you select a multi-layered EXR output. In this case all the passes are going to be including in the same EXR file.

Thanks,
-Juanjo

Do you know if the Z Buffer is as expected in all other apps? Black 0 and White 1. 1 Being furthest from camera?

So I have setup the RENDER PASSES node in the "Open Editor" to include the Z Buffer. Under File Format I have PNG set. Not Multilayer EXR or anything. I still have a LW Render Output setup as well....but am not getting both a Main Render as well as the Z Buffer....just the Z Buffer.

I've probably missed a check box. Thanks for helping....

[juanjgon]

Yes, the "Z Depth" pass should have a floating value, normalized from 0.0 for the near objects to 1.0 for the far objects, configured using the "Z Depth Max" parameter.

I'm testing a scene here, and I always get the beauty pass (with the _Main suffix) as soon as I configure the render passes node file options. Are you sure that you don't get it?

Thanks,
-Juanjo

[juanjgon]

I have remembered an issue related to the render passes fixed some time ago. Are you working with the latest build?

Thanks,
-Juanjo

[3dreamstudios]

I have remembered an issue related to the render passes fixed some time ago. Are you working with the latest build?

Thanks,
-Juanjo

I am not using 3.05 latest.. Waiting for a project to finish before chaning over....that might be it!

Would be great to have the option to invert the Z Depth inside Octane, so the actual output would be correct for compositors. Crazy that other compositor apps see it correctly if they do...Fusion is pretty main stream I think. It's free anyway... so....

I'll update tomorrow or Monday to 3.05 and see if that fixes it. Thanks for the feedback and confirmations!