docs: "Trippy Raymarching" example - #2770
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pkg.pr.new packages benchmark commit |
Resolution Time Benchmark---
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Bundle size comparison (
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| 🟢 Decreased | ➖ Unchanged | 🔴 Increased | ❔ Unknown |
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| 0 | 322 | 0 | 0 |
import { ... } in PR vs import * as ... in PR (is the library tree-Shakeable?):
| Test | tsdown |
|---|---|
| tgpu_init.ts | 260.04 kB ( |
| tgpu_initFromDevice.ts | 259.51 kB ( |
| tgpu_resolve.ts | 165.41 kB ( |
| tgpu_resolveWithContext.ts | 165.35 kB ( |
| tgpu_bindGroupLayout.ts | 69.27 kB ( |
| tgpu_mutableAccessor.ts | 66.27 kB ( |
| tgpu_accessor.ts | 66.26 kB ( |
| tgpu_privateVar.ts | 65.61 kB ( |
| tgpu_workgroupVar.ts | 65.60 kB ( |
| tgpu_const.ts | 64.85 kB ( |
| tgpu_fn.ts | 38.45 kB ( |
| tgpu_fragmentFn.ts | 38.45 kB ( |
| tgpu_vertexFn.ts | 38.27 kB ( |
| tgpu_computeFn.ts | 37.97 kB ( |
| tgpu_vertexLayout.ts | 27.08 kB ( |
| tgpu_comptime.ts | 14.77 kB ( |
| tgpu_unroll.ts | 1.66 kB ( |
| tgpu_slot.ts | 1.54 kB ( |
| tgpu_lazy.ts | 1.19 kB ( |
If you wish to run a comparison for other, slower bundlers, run the 'Tree-shake test' from the GitHub Actions menu.
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✅ No new issues found.
Reviewed changes — adds a "Trippy Raymarching" interactive docs example with a full-screen fragment shader rendering a 3D SDF scene with live controls and pointer/touch input.
- Add fragment shader raymarching example — a
palette-based color scheme, twist/wave/displacement SDF scene, half-Lambert lighting, and glow accumulation in the marching loop. - Add interactive controls — resolution scale, sphere spacing/base radius, max distance/raymarching steps, wave frequencies/amplitude, and twist factor via
defineControlssliders. - Add pointer and touch input — maps pointer/touch coordinates to a world-space mouse uniform that offsets the SDF scene.
- Add resolution scaling — manual
ResizeObserver+ DPR-aware canvas sizing with a user-adjustable scale slider for performance tuning. - Add cleanup —
AbortControllerfor event listeners,ResizeObserver.disconnect(),cancelAnimationFrame(), androot.destroy().
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Pull request overview
Adds a new interactive docs example showcasing a “trippy” 3D SDF/raymarching scene, fitting into the TypeGPU docs examples gallery under the rendering category.
Changes:
- Introduces a new raymarching example implementation (shader + controls + cleanup).
- Adds example metadata (title/category/tags/cool factor) for discovery/sorting.
- Adds a minimal HTML entry with a canvas configured for pixelated rendering.
Reviewed changes
Copilot reviewed 3 out of 4 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| apps/typegpu-docs/src/examples/rendering/trippy-raymarching/meta.json | Registers the example in the docs gallery with metadata/tags. |
| apps/typegpu-docs/src/examples/rendering/trippy-raymarching/index.ts | Implements the raymarching scene, uniforms, interaction, resize handling, and controls/cleanup. |
| apps/typegpu-docs/src/examples/rendering/trippy-raymarching/index.html | Provides the canvas host element with image-rendering styles. |
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reczkok
reviewed
Aug 3, 2026
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✅ No new issues found.
Reviewed changes — applies review feedback to the "Trippy Raymarching" docs example.
- Simplified context and uniforms — removed the unused
alphaMode: 'premultiplied', dropped default zero initializers, and replaced the full-resolution uniform with a singleaspectRatioBuf. - Streamlined pointer handling — moved
touch-action: noneintoindex.htmland removed the redundant touch event listeners, relying onpointermoveonly. - Tightened shader helpers — simplified the palette function, collapsed the SDF cell math into a vector expression, and deferred hit position/color calculation until after the raymarching loop.
- Cleaned up controls — introduced a
paramSliderhelper to remove repetitive slider definitions. - Fixed metadata consistency — changed
coolFactorto an integer (7) to match every other example.
Kimi K2 (free via Pullfrog for OSS) ｜ 𝕏
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Adds trippy interactive 3d sdf raymarching example.