Credit to Pablo Román Andrioli for the 'Star Nest' Algorithm. Animated Procedural Skybox effect using the Star Nest algorithm, ported from ShaderToy/GLSL Sandbox to Unity3d Contains 3d skybox and 2d surface shaders with easy access to shader parameters in the editor. Perfect for any game that needs procedural space backgrounds. Note: Shaders are a bit expensive, and not intended for mobile. Option to reduce the quality or disable them entirely should be included with any shipped game, even on Win/Mac/Linux.
Adds a feature to Clamp with a color, rather then blend with the color, allowing 'overbright' areas of output to be reduced. If there are shader errors, such as "Shader error in 'Skybox/StarNest': forced to unroll loop, but unrolling failed. at line 160 (on d3d9)" Right-click the shader folder and select 'Reimport'. The shader should be imported with the correct settings.