3D scenes, cameras, and lights

A reliable 3D scene starts with scale, camera, lights, and depth before procedural or interactive behavior is added.

Camera fields

• Camera3D.type is perspective or orthographic.
• Required camera field: position: [x, y, z].
• Optional fields include rotation, fov, near, far, size, tonemap, exposureStops, and agxLook.

Light fields

• Light3D.type supports ambient, directional, point, spot, and hemisphere.
• Required light fields are id, type, name, color, and intensity.
• Optional fields include position, castShadow, visible, angle, penumbra, distance, decay, and groundColor.

Verification

• Check first-frame framing, resize framing, depth clipping, and interaction range.
• Use stable scene units so camera distance, object positions, physics values, and procedural fields stay understandable.
• Use debug snapshots and screenshot checks when lighting, depth, or cross-scene texture behavior changes.

Verified runnable example

This guide points to proof-backed sample coverage. The full ledger lives in Generated examples and proof log.

Canvas: Fill rule diagnostic

• Source: faster-motion/demo/tests/canvas/fillrule-diagnostic/fillrule-diagnostic.fmtion
• Expected output: A contained Canvas scene renders paired path cases so nonzero and evenodd fill handling can be compared visually.
• Validation: Schema validation passed. Runtime proof reports zero blocking runtime issues and 10 rendered objects; the accepted metadata note is preserved in the proof ledger.
• Desktop proof: generated-assets/faster-motion-docs/proofs/screenshots/canvas-fillrule-diagnostic-desktop.png
• Mobile proof: generated-assets/faster-motion-docs/proofs/screenshots/canvas-fillrule-diagnostic-mobile.png

Guide-specific sample target: Camera and light sample with perspective and orthographic variants, first-frame screenshot, and resize screenshot.

Faster Motion docs

Use this local map together with the left navigation. The source-backed content tree controls the main article order; this section keeps related pages one click away.

Start

• Faster Motion docs map
• Faster Motion documentation overview
• Get started with Faster Motion
• Faster Motion concepts
• .fmtion file format

DOM animation

• DOM animation guide
• DOM selectors and targets
• Scroll animation
• Pointer, hover, and drag inputs
• Text, SVG, and path animation
• Responsive gates and parameter overrides

Canvas animation

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

3D and procedural

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

Reference

• Node reference index
• Node categories reference
• Runtime loading and publishing
• Runtime API reference
• Debugging and preflight
• Debug API reference
• Validation errors and warning codes
• Faster Motion production checklist
• Faster Motion recipes overview