camera path question
Hi everyone!
I cant directly save video created with camera on Meta Quest 3.
I’m trying to export a scene from Open Brush into Blender, keeping both the animated brush strokes and the camera path — but I can’t get it to work properly.
Here’s what I’ve done so far:
Exported my sketch as .gltf with Sketach Fab
Imported the .gltf into Blender — the geometry shows up fine and the texturing is on without stroke effects.
I couldnt finte the camera_path file, but I’m not sure how to correctly import or align it to match the scene.
Does anyone know the proper workflow or script to import both the stroke animation and camera path correctly into Blender?
12 Replies
@Judyta W @skipperleigh creating a thread for this as there's a few different things i need to unpick
I cant directly save video created with camera on Meta Quest 3.I might be misunderstanding but i don't see how this relates to the rest of the question. I'll ignore this part for now and you can tell me if I missed something important.
I’m trying to export a scene from Open Brush into Blender, keeping both the animated brush strokes and the camera pathOK. So I'm taking this as the core task you're trying to achieve. There's two parts to this: 1. How to preserve animated brushes when importing an Open Brush sketch into Blender 2. How to import camera paths into Blender I'll start with (1) - at the moment it's not possible. Blender has a completely different model for materials to Open Brush, web and other apps that we can export to. We're looking into improving how similar things look in Blender but it's a complex task and brush animations is quite far down the list. First we need to get the basic geometry and blending modes working (and that itself is fairly tricky) Does it have to be Blender? What makes Blender important to you in this workflow? If you can tell me the ultimate goal then I might be able to suggest a different way to approach it. Now - point (2) requires me to do a little homework. I'm going to punt on that for now because the answer to (1) might change the bigger picture.
I usually work in Blender — that’s where I’m most comfortable doing rendering, lighting, and compositing — but I’m also open to learning Unity if that’s a better way to reproduce the Open Brush camera path and animated brush strokes.
My goal is to recreate the full Open Brush experience in 3D with video:
the animated drawing,
and the camera movement following the path I set in Open Brush,
so I can render a smooth video or cinematic sequence from it on my PC.
If Unity offers an easier or more complete export path (and maybe a way to later bring that back into Blender or export as a video), I’d love to learn that workflow too.
Could you please suggest the best route or share any resources/scripts for:
exporting the Open Brush camera path,
keeping brush stroke animation,
and getting both working either in Blender or Unity?
I’m happy to experiment and learn whichever pipeline works best 🙂 Many Thanks for your help
What's your final output? A normal video? Stereoscopic video? 360 stereoscopic? How will you distribute the output and how do you want people to view it?
Normal video = one flat camera → rendered like a regular animation
ok. so why not output video directly from open brush? what do you want to add to the existing video output?
The reason I’m not just outputting a video directly from Open Brush is because I’m using it on a Meta Quest 3 (standalone) — it’s not connected to a PC, so there’s no built-in video rendering or export-to-video option available on the headset.
My goal is to export my sketch to the computer so I can:
recreate the camera path and animation from Open Brush,
and render a normal 2D video in Blender (or possibly Unity),
with custom lighting, materials, and composition.
I’ve already exported the .gltf file and can open the scene in Blender, but:
the camera path (from camera_path.json) doesn’t import or appear in the scene,
and I’m not sure how to apply that data properly so the camera moves like it did in Open Brush.
Oh ok. Your can run open brush on a Mac or pc without vr and tenner your sketch on that. You don't need blender.
Also the beta has a new feature that will render on quest as numbered still frames which you can compile into a video in various ways. That's pretty new and has had minimal testing so far so it would be really helpful for people to try it.
Thats great news. Can you provide with the link to download the beta version for PC?
Thank you very much for your help and the link atached 🙂