Shaders

[impworks]

• Infrastructure
  • Shader support in DynamicObject
  • Platform-specific libraries
• Effects
  • Gaussian blur
  • Radial blur (https://www.shadertoy.com/view/XsfSDs)
  • Color / texture overlay
  • Stroke
  • Fisheye: https://www.shadertoy.com/view/4s2GRR
  • Saturate / desaturate (http://xboxforums.create.msdn.com/forums/p/45836/274502.aspx#274502)
  • Whirl (https://www.shadertoy.com/view/XdfyW4)
  • Shockwave (https://www.shadertoy.com/view/llj3Dz)
  • God rays (https://www.shadertoy.com/view/XsKGRW)
  • Cassette distortion (https://www.shadertoy.com/view/Ms3XWH)
  • Ripples (https://www.shadertoy.com/view/4sBXRc)

[impworks]

The fisheye shader from this link has a lot of issues:

https://www.shadertoy.com/view/4s2GRR

1. Complete source does not fit into level_9_1, must probably be broken into FisheyeShader and AntiFisheyeShader.
2. Moving the center produces weird results (especially on "positive" mode).
3. Effect power is non-linear.

[impworks]

Another fisheye candidate:
https://www.shadertoy.com/view/XsVSW1