Skybox Shader

A stylized procedural sky horizon-to-zenith gradient, sun disc with glow, haze above the ground and animated cel-shaded clouds. No textures and no cubemaps.

What it does

• draws five cloud patterns: billowing, feathered streaks, round puffs, diagonal bands and connected cotton
• flattens the clouds into steps with posterization bands, from one step up to eight
• moves the cloud edge smoothly on the coverage slider while the edge itself stays hard
• reshapes the clouds as they drift - stretch, swirl and wind speed sit on separate sliders
• aims the sun by hand or takes the direction from a DirectionalLight3D
• feeds ambient light and reflections, so the scene below picks up the colour of the sky
• grades itself in the material: exposure, contrast, saturation, lift, gamma and gain

What is inside

• the sky shader
• 2 preset materials: clear daylight and warm dusk
• a demo scene with ground, light and a few shapes
• 2 demo scripts: orbit camera and preset switch
• README and documentation

Technical

• Forward+ renderer, also runs on Mobile; Compatibility has not been tested
• no textures - everything is procedural, so the clouds drift and change shape with no baked animation
• 38 settings on the material in six inspector groups: 23 sliders, 12 colour fields, 2 toggles and the sun direction