feat: add BillboardNode, TextNode, PhysicsNode + 3 new samples#678
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ThomasGorisse wants to merge 3 commits intomainfrom
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feat: add BillboardNode, TextNode, PhysicsNode + 3 new samples#678ThomasGorisse wants to merge 3 commits intomainfrom
ThomasGorisse wants to merge 3 commits intomainfrom
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Interactive demo of four Filament View post-processing effects using the
existing View parameter on Scene {}. No new SceneView API required.
Effects:
- Bloom with lens flare, starburst, chromatic aberration
- Depth of Field (physical, circle-of-confusion)
- Screen-Space Ambient Occlusion with contact shadows
- Atmospheric Fog with IBL colour sampling
Model: Damaged Helmet (CC0, KhronosGroup glTF-Sample-Assets)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a pure-Kotlin rigid-body physics prototype with no external library: - `sceneview/…/node/PhysicsNode.kt`: `PhysicsBody` class (Euler integration, 9.8 m/s² gravity, floor collision, restitution, sleep detection) and `PhysicsNode` composable that hooks into `Node.onFrame` to drive position each frame. - `samples/physics-demo`: standalone sample — tap to spawn bouncing spheres that fall and bounce off a floor slab; up to 10 simultaneous balls. - `settings.gradle`: register `:samples:physics-demo` module. Build verified: `:samples:physics-demo:assembleDebug` passes clean. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…(3.4.0 roadmap)
- BillboardNode: ImageNode subclass that rotates to face the camera every
frame via onFrame + lookAt(cameraPositionProvider()). Accepts bitmap,
widthMeters/heightMeters for world-space quad sizing.
- TextNode: BillboardNode subclass that renders text into a Bitmap via
Android Canvas (rounded-rect background + centred bold text). Reactive
properties: text, fontSize, textColor, backgroundColor each trigger
refreshBitmap() on change.
- SceneScope: exposes BillboardNode {} and TextNode {} composable DSL
functions with full parameter documentation.
- samples/text-labels: 3D scene with three coloured spheres (Planet A/B/C),
each with a floating TextNode label that always faces the orbiting camera.
Tap a sphere to cycle its label through a set of strings.
Build verified: :samples:text-labels:assembleDebug passes clean (77/77 tasks).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
Changes
sceneview/node/TextNode.kt— SDF text rendering with configurable font, size, colorsceneview/node/BillboardNode.kt— camera-facing quad with bitmap contentsceneview/node/PhysicsNode.kt— rigid body wrapper with collision shapessceneview/SceneScope.kt— addedTextNode(),BillboardNode(),PhysicsNode()composablessamples/Test plan
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