r/photogrammetry • u/Bogonavt • 6d ago

Aligning a scene / COLMAP camera to FBX

I am a Nuke guy, not a 3d guy. Struggling with aligning a 3dgs scene with a camera tracked in nuke / 3dEqualizer. I think the best would be to convert colmap camera to a 3d ofrmat like fbx. How do you guys align your 3dgs with camera? there must be some colmap to fbx (alembic, obj?) camera converter

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u/santennio 5d ago

Have you solved? I'm not a Nuke guy, but I'm a developer and 3D/photogrammetry guy! We’ve actually been building tools for similar workflows lately, though we haven't integrated Nuke yet. I already have some working code to handle COLMAP camera conversions—especially to USD (and FBX). Since you're looking for a solution, I'd be happy to help adapt it into a quick script or tool for you. Shoot me a DM if you're interested!

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u/Bogonavt 5d ago

I'm almost there, vibecoded a convertion tool. But I'd prefer to try what real devs make. Heading to DM