L1 SH RGB representation of irradiance.
| Name | Description |
|---|---|
| Geo::v128 B | Each colour channel has 4x 32-bit floating point SH coefficients. |
| Geo::v128 G | Each colour channel has 4x 32-bit floating point SH coefficients. |
| Geo::v128 R | Each colour channel has 4x 32-bit floating point SH coefficients. |