Graphics

Applications draw today through (snail-core app): view returns a frame of mesh batches, sprites and pictures, and a fixed WebGPU renderer in host/browser/renderer.mjs draws it with one metallic-roughness shader.

• The WebGPU design proposes an effect and graphics libraries of composable pipelines and packers. The application-owned JSPI loop already runs; the renderer replacement remains proposed.
• The path tracing primer explains the physics of the lighting that plan leaves for after rasterization.