Export and deliver

Delivery begins after the scene has been visually validated.

Portrait video

Matemium’s default video shape is 9:16, suitable for:

• YouTube Shorts
• TikTok
• Instagram Reels
• Mobile-first lessons

Keep important text and labels away from platform interface overlays.

Landscape video

Use 16:9 for:

• Standard YouTube lessons
• Classroom projection
• Presentations
• Embedded course videos

Changing orientation can affect layout and camera composition. Validate a landscape render independently instead of assuming the portrait composition will translate automatically.

Full-sheet export

Export the entire reasoning tape as PNG or PDF when viewers need:

• A study sheet
• A printable derivation
• A complete reference
• An accessible static companion to the video

The full sheet uses its natural length rather than forcing the content into a video frame.

From an engine checkout:

scene = builder.to_scene()
scene.export_full_sheet(
    "my_explanation",
    full_tape=True,
    format="png",
)

Reel cutting

Long-form projects can be divided into vertical segments around meaningful chapter boundaries. Review every cut:

• Do not begin a segment in the middle of an unresolved statement.
• Reintroduce context when earlier content is no longer visible.
• Keep titles and conclusions inside each deliverable segment.

Audio assembly

Voice-synthesis and custom-voice projects should attach only approved audio. Avoid unnecessary video re-encoding during final assembly when the workflow can reuse the validated video stream.

Publishing

Publishing is an explicit action. Local output is not automatically uploaded. Before publishing:

1. Verify subject accuracy.
2. Confirm rights to imported media and audio.
3. Watch the final assembled file.
4. Add captions or a transcript where appropriate.
5. Retain the project source needed for later corrections.