Particle Scatter Fountain
Particle motion and scatter are rendered from real UPE emitter, particle, and collision code rather than decorative loops.
What you are seeing
Scene
A two-emitter particle scene that throws a fountain and a side scatter plume through gravity and collision response.
Why it matters
Show continuous particle emission, spread, gravity, and collision-driven scatter in a readable engine-backed field test.
Pass condition
The fountain should arc upward, spread, and scatter back down in a visibly physical way.
Proof views
Use Public proof for the clean buyer-facing read, Event focus for adaptive slowdowns around the key moment, and Debug proof for contact cues, overlays, frame numbers, and proof-lane instrumentation.
Metrics strip
Technical drawer
Command / source path
build\bin\examples\particle_emitter_demo\main.exe
Systems exercised
- particle system
- emitter pool
- gravity
- drag integration
- particle collision
Known limitations
- This is a proof scene for particle dynamics, not a full cinematic VFX authoring workflow.
Recommended context
Useful when a buyer wants visible evidence that UPE can handle particles, debris, spray, or secondary FX-style motion.
Determinism status
- same build: scene-capable within the reference setup
- cross-run: validate in deterministic config
- cross-platform: not broadly claimed
- snapshot / restore: supported by broader tooling
Related proof
Mixed Shape Resting Contact
Mixed primitive contacts settle cleanly without obvious interpenetration drift.
View test