Animated GLTF to XY Audio and Laser Art in Your Browser

BeamTracer's OSC-1 oscilloscope reads the animation clips stored inside an animated .gltf or .glb. Pick a clip in the 3D IMPORT panel, play or scrub the clip, then export the motion from EXPORT → 3D→XY as a 192 kHz 16-bit stereo WAV with X on the left channel and Y on the right. No Blender conversion pass required.

Hi, I'm Trina with BeamTracer.com — in this one I'll show you how to get an animated 3D file playing on a scope or a laser, clip to WAV, in your browser.

An animated GLTF or GLB can already contain a walk cycle, dance, camera move or other finished motion. The frustrating part has been getting that motion onto an XY oscilloscope or laser: import it into a 3D application, configure a render or plugin, export an intermediate, and convert that result again.

What does OSC-1 do with an animated GLTF or GLB?

OSC-1 opens the animated file directly, lists the clips inside it, plays them back under your control, and writes the resulting beam path out as stereo XY audio. Nothing else in the chain has to exist.

CLICK TO ENLARGE

The ANIMATION header includes the imported file name, while the clip menu shows the selected motion and its duration.

Which animated file should you upload, GLB or GLTF?

GLB and GLTF are the two packagings of the same format — glTF, maintained by the Khronos Group.

Use a GLB when you have the choice. It normally packages the model, rig, animation and textures into one file, so it is the easiest format to move and upload.

A GLTF works too, but it often refers to separate files. Select the complete set together — usually the .gltf, its .bin, and any texture files. If only the .gltf is uploaded, the model may report a missing buffer or texture.

OSC-1 does not open .blend or .fbx directly. Export those as GLB or GLTF first. The complete format and troubleshooting reference is in 3D Import Settings.

How do you turn an animated GLTF into XY audio in OSC-1?

Import the file, choose one of its embedded clips, and export that clip from the 3D→XY tab. OSC-1 derives the export length from the chosen clip, the playback speed and the loop count, so you never guess a duration that cuts the last step short or adds silence.

The regular 3D controls still apply while the animation is active. Rotate the view, choose the useful edges, hide lines behind the model, and adjust the trace density before export.

How do you audition and perform an animation clip?

Everything the clip does on screen is controlled from the ANIMATION section of the 3D IMPORT panel, and every one of those controls can be driven from a MIDI or OSC surface.

This is useful both for preparation and live performance. A MIDI pad can start the walk cycle, a knob can scrub through poses, and another control can change the speed without leaving the canvas.

How long is the exported file, and how many loops can you get?

The length comes from the clip, not from a number you type. Choose CLIP LOOPS from 1 to 16 in the 3D→XY tab: if a clip lasts 2.375 seconds, three loops produce a 7.125-second file containing three complete cycles with no rounded extra second at the end. In ping-pong mode, one loop includes both the forward and the return pass.

The resulting WAV is 192 kHz, 16-bit stereo:

• Left channel: X position
• Right channel: Y position

See the full OSC-1 export guide for WAV and video options.

How do you check the exported WAV actually replays the motion?

Load the exported WAV back into OSC-1 as an ordinary stereo audio file. The 3D model is no longer needed: the animated path has been baked into the left and right channels, so pressing play redraws the walk cycle from the audio alone. That round trip is the cheapest verification step before routing the signal anywhere else.

CLICK TO ENLARGE

The exported WAV loaded in a fresh session. VECTOR DISPLAY preserves the model's proportions, and hiding the keyboard gives the canvas more room.

A six-second view of the exported XY WAV replaying the walk cycle. This is the audio file driving the display, not the original 3D scene.

If the replay looks stretched, confirm that the player or audio interface has not changed one channel's gain. OSC-1's export keeps the same X:Y proportions used by the 3D trace.

How do you send the animated XY WAV to a laser projector?

The same WAV drives a supported laser DAC straight from OSC-1. Load the audio, open LASER OUTPUT, connect SIMULATOR first, and confirm the whole figure stays inside the preview. For real hardware, check the device, plan, and safety requirements first. HELIOS connects over USB in Chrome or Edge; supported network devices use the macOS BeamTracer Bridge app. A simulation does not certify the physical setup.

The streaming card reports the live point rate. If the drawing exceeds the rate you set, open × OVER · DETAILS for the corrective controls; the longer warning stays collapsed during normal playback so changing poses do not resize the panel. Hardware setup is covered in MIDI, OSC & DAC Hardware.

How does OSC-1 compare with a traditional animation conversion workflow?

Blender and other 3D tools are still the right place to create or edit a character animation. BeamTracer removes the conversion and rendering setup once you already have an animated GLTF or GLB. For a model without animation, use the broader 3D model to oscilloscope and laser guide.

Do you need Blender to convert an animated GLTF?

Not to convert an already animated GLTF or GLB into XY audio — OSC-1 reads the clips out of the file itself. You may still need a 3D application if you want to create a new animation, edit the rig, or export another source format as GLB or GLTF.

Does every rigged GLB include animation?

No. A rig is the structure that can be animated; a clip is the actual recorded motion. OSC-1 shows the ANIMATION clip controls only when the file contains embedded clips, and traces a rig-only model as a static 3D object.

Can OSC-1 export video as well as WAV?

Yes. RENDER 3D→VIDEO writes MP4 or WebM from the same animated source, at 1080p or 4K, with optional synchronized XY audio. The WAV is the portable XY signal; the video is the conventional visual record. Both use the selected animated pose at each output frame.

beamtracer.com — I'll see you in the next one.