Companion

Anisotropic-splat renderer setup: centres + scales + rotations + rgba (alpha baked in); SH still skipped (DC term only). Use when the shader does proper covariance projection but no view-dependent colour.

Anisotropic-splat renderer setup with SH=1 view-dependent colour. Decodes all bands the payload ships; the renderer is responsible for picking the prefix it needs (typically SH=1 → first 9 floats per splat for the RGB-interleaved layout).

Decode every field. Spec-compliant default.

Round-splat renderer setup: only centres + scales + rgba (alpha baked in).