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Fusion camera track export FBX to Blender

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Graviton

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Fusion camera track export FBX to Blender

PostThu Nov 16, 2023 8:41 am

Hi,
I have Davinci Resolve Studio - using Fusion tab and performing a camera track it works perfectly, I can add a geometry{cube or cone etc} to test, align ground plane etc works great.

When it comes to exporting as FBX for blender use, I can import the resultant FBX into Blender, but no animation of the camera or keyframes are present?. The Geometry is present as is the exported camera.

I have followed numerous Youtube tutorials exactly and it just does not work. Surely it can't be this difficult!

If anyone can help on how to export FBX camera track solve from fusion [Davinci Resolve Studio - latest version just released] to Blender with camera movement & keyframes intact and present that would most helpful.

Fusion.jpg
Node tree for export FBX
Fusion.jpg (34.78 KiB) Viewed 1429 times

Regards

Carlos
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Graviton

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Re: Fusion camera track export FBX to Blender

PostThu Nov 16, 2023 1:27 pm

Ok I have an update, after hours of tinkering. It turns out that the animation is exported! It's location is at frame 8100, which is the frame start from the clip I have exported from fusion, so atm I am offsetting by -8100 on the import in blender.

How would I go about exporting from fusion so I don't need to do the offset on import?
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Sander de Regt

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Re: Fusion camera track export FBX to Blender

PostThu Nov 16, 2023 3:15 pm

The easiest answer to that is: move all the animation in Fusion back 8100 frames.
In itself I'd consider this good behaviour, since you want to line up your footage inside of Blender as well, so if your inpoint is at frame 8100 in Fusion it should be the same in Blender to make roundtripping easier.
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Sam Steti

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Re: Fusion camera track export FBX to Blender

PostThu Nov 16, 2023 3:29 pm

Graviton wrote:How would I go about exporting from fusion so I don't need to do the offset on import?
Well imho Sander is right, why Fu would "decide" to change the start frame at export finally ? Adjusting it in Blender would be better for me too...

But as a test, you could try adding and playing with TimeMachine3D (not at it now, maybe 3D is at the beginning of the node name :) ), available the Reactor way : I'm used to the 2D node and it can be very convenient for that kind of work.
You may want to try and play with it, putting it just before the exporter...
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CptCurk

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Re: Fusion camera track export FBX to Blender

PostFri Nov 24, 2023 7:07 pm

okay, I got the same struggling !
Thank you for your help ! Then to avoid this, you need to right-click on the clip and choose "new fusion comp" instead of going directly into the fusion tab from the clip itself. This will take the clip and make it beginin at frame 0. But that's bad to work that way if you will go back to fusion. You lose the sound and the sync with the edit page.

So the idea is just to make the start and end I/O of the clip in blender directly. Or using the "professionnal" idea which will be to always transcode everything in EXR sequence, you can do that using VFX connect clip to work in Fusion standalone.
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bentheanimator

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Re: Fusion camera track export FBX to Blender

PostFri Nov 24, 2023 10:28 pm

An alternative is to make a new timeline. Name it something like shot_001. Go to 41:16 in the new timeline. This is frame 1000 if your timeline is 24fps. Add an image or something to let Resolve know it's filled. You can use a Fusion Comp or a Color fill but just slapping down a stand in clip of footage or something is easier. Mark it as in and set an arbitrary out.

Then go back to your master timeline and add that shot to your main timeline. The timecode will now pick up the 41:16(frame 1000) as the beginning of the clip when you open it in Fusion.

Inside the Fusion Comp, set your Media In to Background and the sound will pick up your timeline. Now you can edit in the timeline and see it in the comp. You can also add the clip you need as a new MediaIn. If you add the clip into your Shot_001 timeline, you can add it as a timeline MediaIn but since the Fusion Comp is initiated on the main timeline, you'll still be good at frame 1000.

Make sure at the end, you disable the Background MediaIn and replace the first node in your flow with a Bg Tool or the footage you need. The background feature is not the greatest fit stability and will mess with caching if left as an integral part of the comp.
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carlomacchiavello

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Re: Fusion camera track export FBX to Blender

PostSat Dec 09, 2023 9:46 pm

The same with 3d tracking of after effects.


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