Specifies the format of the currently loaded resource packs.

• Default: Uses values hard-coded in the shader.
• Lab PBR: For PBR resource packs with LabPBR encoding.
• Old PBR: For PBR resource packs using the old, non-standard PBR encoding.
• Patrix PBR: A combination of OldPBR & LabPBR added specifically for the Patrix resource pack.

Allows textures to have 3D depth.

When enabled, surfaces with SSS will allow light to scatter through.

The method for reflecting light from mnaterials.

• None
• Sky
• SSR [WIP]