kDiffuseShKtx2Key top-level constant Lighting and environment

String const kDiffuseShKtx2Key

The KTX2 key/value key an environment file's diffuse spherical harmonics are read from, holding exactly the kDiffuseShSidecarByteLength bytes encodeDiffuseShSidecar produces.

A file carrying this key needs no sidecar; an explicitly passed coefficient list still wins over it.

Implementation

const String kDiffuseShKtx2Key = 'fsDiffuseSh';