Particle and physics visuals are powerful, but they need hard bounds, clear ownership, and runtime inspection because small parameter mistakes can create large visual failures.

Where this fits

• Faster Motion docs map shows the full documentation structure.
• Faster Motion documentation overview explains the high-level surfaces and reading order.
• Debugging and preflight explains validation before publish.

Particle systems

• Define emitter position, spawn rate, lifetime, velocity, color, size, and decay before adding interaction.
• Use fields and forces intentionally. A field should have a visible purpose, such as focus, drift, burst, or avoidance.
• Set density based on the weakest expected device, not the authoring machine.

Physics scenes

• A physics world should own its bodies, joints, forces, collisions, and coordinate scale.
• Use stable body IDs and scoped selectors so future DOM changes do not create unintended bodies.
• Avoid double-writing transforms: either physics owns a body pose or the graph writes it directly, not both.

Debug checks

• Validate that the world exists, referenced bodies exist, body scale is reasonable, and collision/picking selectors are scoped.
• Inspect live body IDs, collision logs, and geometry when a physics scene behaves differently from the authored layout.
• Check reset, pause, visibility, and resize behavior before publishing.

Working sample slot

Particles and physics: This page reserves a sample location for a later verified example. Add the sample only after the source file, public page, validation output, and visual check all pass.

Faster Motion docs

Use these links to move between the guide set, the deeper reference pages, and the recipe planning pages. Verified working samples will be inserted after this documentation structure is reviewed.

Start

• Faster Motion documentation overview
• Get started with Faster Motion
• Faster Motion concepts

Surfaces

• DOM animation guide
• Canvas animation guide
• Canvas 3D and procedural guide

Reference

• .fmtion file format
• Runtime loading and publishing
• Debugging and preflight
• Node reference index

Start

• Faster Motion docs map

DOM animation

• DOM selectors and targets
• Scroll animation
• Pointer, hover, and drag inputs
• Text, SVG, and path animation

Reference

• Responsive gates and parameter overrides
• Runtime API reference
• Debug API reference
• Validation errors and warning codes
• Node categories reference

Canvas animation

• Canvas area lifecycle
• Canvas objects, assets, and rendering
• Canvas inputs and state machines

3D and procedural

• 3D scenes, cameras, and lights
• Procedural geometry and fields
• Particles and physics

Operations

• Production checklist

Recipes

• Recipes overview