glhimmel

real-time rendering of background imagery

texturebased

Rendering different kinds of textures on a screenaligned quad. Texturemapping modes:

• Spheremapped
• Polarmapped
• Cubemapped
• Paraboloidmapped

Additional Features:

• Horizonband (blend between a horizon and bottom color at the edge of the texture and ground)
• fake sun (add an alpha channel to your texture to make it disappear behind clouds)
• transitions (switch between multiple textures)
• Rotation around Zenith (raz) (rotates the texture to simulate cloud movement)