THREE.JS / MATERIALS / CANVASTEXTURE

Paint the map.

The drawing canvas is the source for a CanvasTexture on a rotating cube. Pointer strokes and the stamp control mark the texture needsUpdate boundary explicitly.

Loading CanvasTexturePreparing the canvas source and cube.
backend
WebGL2
texture
—
source size
—
strokes
0
texture version
—
frames
—
sample avg / p95
NOT RUN

Official page framing, exact pointer/canvas layout, pixel fidelity, device/compiler matrix, GPU upload inspection, device-wide performance, native WebGPU parity, context-loss stress, and whole-example fidelity remain separate.