A Sky For Maps That Only Have One Texture

Two Fallbacks

• ▸loadSkyboxFromTexture added to SkyboxLoader, with BspMeshBuilder

extracting stage textures from sky shaders. If no cubemap farbox exists, applySkybox falls back to a textured skybox.

• ▸A sky sphere instead of a cube for single-texture skies. The texture is

created via canvas for reliable display, and negative scale flips the sphere and its diffuseTexture correctly.

Also: the skybox now loads from PK3 data instead of a pk3:// URL, which removes a URL round-trip from the map load path.

The Rest

• ▸Isometric controller: fixed ArcRotateCamera creation on switch.
• ▸Camera height command now falls back to CameraSystem.setHeight() when direct

camera access fails — which is a fallback for a command that already had a fallback, and is the shape most of the fixes in this project take.

• ▸r_wireframe and r_showtris no longer persist to localStorage, on the grounds

that they are debug-only and nobody wants a wireframe engine after a bad crash.

Known Issues: none stated.