Shaders

[impworks]

• [x] Infrastructure
  • [x] Shader support in DynamicObject
  • [x] Platform-specific libraries
• [ ] Effects
  • [x] Gaussian blur
  • [x] Radial blur (https://www.shadertoy.com/view/XsfSDs)
  • [x] Color / texture overlay
  • [ ] Stroke
  • [ ] Fisheye: https://www.shadertoy.com/view/4s2GRR
  • [x] 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