Manual mipmaps, visible as data.

The lab compares the official-style CubeTexture.mipmaps path with automatic generateMipmaps GPU generation. The two spheres share geometry but own separate cubemap policies.

STATUS

Ready

BACKEND

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STATUS DETAIL

Preparing authored levels.

POLICY

—

LEVELS

—

VISIBLE

—

SAMPLE AVG / P95

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Native WebGPU keeps authored and generated ownership separate. Forced WebGL2 is an explicit reference lane. Official Angus assets, exact page/pixel fidelity, render-to-mipmap, arbitrary cube/mip dimensions, device performance, context loss, and whole-example fidelity remain separate.

Sources: CubeTexture docs · official cubemap mipmaps example