WEBGPU / TEXTURES / PARTIAL COPY
Patch the surface.
A deterministic 2×2 DataTexture is copied into a 4×4 destination at an explicit texel offset, then verified through GPU readback.
Loading partial copy—
Preparing the source, destination, and readback target.
Waiting for the first GPU readback.
- path
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- source
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- destination
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- region origin
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- changed / kept
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- readbacks
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WebGPU unavailableOpen this route in a WebGPU-capable browser, or append
?backend=webgl for the labeled WebGL2 reference path.Initialization error
The ?backend=webgl route exercises the same WebGPURenderer contract through WebGL2. Official gallery assets, page/pixel fidelity, device matrices, performance, context loss, and whole-example fidelity remain separate claims.
three.js lab / contract probe