feat(examples): add Prism Atelier creative surface example#39
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Add Prism Atelier as a vanilla TypeScript example that demonstrates DOM-authored HTML/CSS/SVG surfaces as creative canvas material. Atelier preserves the visual prototype's studio/gallery direction while replacing the prototype rendering and export path with Prism canvas composition. The default public artwork uses SURFACE as the source word. What changed: - Add apps/prism-atelier. - Use CanvasRuntime from @synthesisengineering/prism. - Register DOM-authored source nodes as Prism surfaces: - type-surface - glyph-surface - css-surface - pattern-surface - Draw the active source repeatedly inside runtime.onPaint() using canvas transforms, alpha, shadows, blend modes, and pointer-driven offsets. - Add creative modes: - Extrude - Orbit - Trail - Split - Grid - Add source-aware draw budgets so expensive CSS/pattern sources avoid accidental worst-case draw counts. - Add Prism-ready PNG export: - document.fonts.ready - runtime.paintOnce() - canvas.toBlob(..., "image/png") - Add a native-support gate for non-native environments. - Add explicit surface registration and disposal helpers. - Add pagehide/beforeunload cleanup for runtime teardown. - Add focused teaching comments around Prism surface registration, readiness, repeated drawSurface() composition, and cleanup. This example does not use React, Next.js, Three.js, WebGL, WebGPU, html2canvas, screenshots, iframe, foreignObject export, or a UI library. Verification: - pnpm --filter @prism/example-atelier build - pnpm e2e - pnpm test - pnpm typecheck - pnpm lint - pnpm build Native smoke: - Confirmed window.prismRuntime.backendKind === "native" with canvas-draw-element enabled. - Confirmed await window.prismRuntime.paintOnce() resolves successfully. Note: - Full artwork requires Chromium/Chrome Canary with chrome://flags/#canvas-draw-element enabled.
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Summary
Adds Prism Atelier, a vanilla TypeScript creative-coding example that demonstrates DOM-authored HTML/CSS/SVG surfaces as canvas-composited visual material.
What changed
apps/prism-atelier.SURFACE.Prism usage
Atelier:
CanvasRuntimeruntime.onPaint()drawSurface()under canvas transforms, alpha, shadows, and blend modesRegistered DOM surfaces:
type-surface: HTML/CSS typographyglyph-surface: inline SVG prism glyphcss-surface: CSS gradient/blob surfacepattern-surface: SVG/CSS geometric pattern tileImplemented modes:
ExtrudeOrbitTrailSplitGridExport
Export uses the Prism-ready canvas path only: