Agent skill
How-It-Works 3D (Blender) skill
Make vertical "how does this work / how to do X" 3D shorts built in Blender from Python code (one object, cutaways, fast cuts, 2-3 word captions) with the SceneSkills How-It-Works 3D kit.
Vertical "how does this work" shorts built in Blender from a Python script: one clear object on a light-blue grid studio floor, simple physical events, cutaway slices that show what happens inside a material, fast cuts, a quick narrator and 2-3-word centred captions. Demo: Cut a Glass Bottle with string and fire (bottle.py).
What the skill teaches your agent about the style:
Studio: light-blue seamless floor with a faint grid, soft key light, one hero object in the middle.
Shots: short (1.5-3 s), each a new angle on the same object; cuts land on the voice.
Physics you can read: flames, heat glow, water, ice, cracks, splashes, all simple and clear.
Cutaway slice: when the inside matters, cut a slice of the wall and show the change (hot band, cold shrink, arrows, a zig-zag crack). Never film through murky water; slice instead.
Captions: chunks of 2-3 words, white with a dark outline, centred.
Pacing: fast (~200 words per minute), 25-40 s.
- 1
Plan the film
Script + shot list (one object, 8-14 shots). Show it.
- 2
Voice and timing
Voice -> voice_prep.py -> build timeline.json cues (copy the demo's format).
- 3
Plan the film
Copy bottle.py -> <topic>.py. Keep the studio, lights, camera helper and caption timing. Model the new object from primitives or a lathe profile; add the events with the same patterns (emission for heat, particles for embers, a separate cutaway object for the inside).
- 4
Plan the film
Render a few single frames at 270x480 to check each shot, then the full sequence: blender -b -P <topic>.py -- out/ 0 <frames> 1080 1920 32 CPU (GPU: OPTIX or CUDA).
- 5
Sound and mix
python post.py for captions, sound and the MP4.