Sample App Improvements

[hawkerm]

Description (optional)

Been messing around on the samples a bit so figured I should have an issue to track these for future integration and better coordination/discussion. My current mess of a branch is here. Plan to clean-up individual features and sample additions in the future once the WinUI/UWP based sample apps are in main.

• [x] Add Mouse Input (Movement, and Left Click)
  • [ ] Right Mouse Button
  • [ ] Add Mouse input to pure Win32 sample
• [ ] Keyboard Input? (Not sure about complexity here and extra value?)
• [x] Dynamic Shader Color Parameters
  • [ ] Generalize parameter options that appear for selected shader:
    • [ ] Color Selector button
    • [ ] x to y Float Range thumbs?
    • [ ] Bool toggle button
  • [ ] Use Attributes on Shaders or have sample detect public properties maybe?
• [ ] Extra Buttons
  • [x] Quit Button (top-left)
  • [ ] Full Screen Button (left of quit)
  • [ ] Restart Shader Button (left of bottom buttons)
  • [ ] Improved Settings UI (Make toggle to bring up buttons to configure shader parameters)
• [ ] Other UX Improvements
  • [ ] Add Name of Sample to Shader List
  • [ ] Bug? (Investigating) Shader's Shared in List with texture resources cause degradation...?
• [ ] Extra Samples
  • [ ] RotoZoomPainter (Feedback Buffer #137 + Mouse Interaction) [Custom] and/or ShaderPainter [No License? 😟] From: https://www.shadertoy.com/view/XdyfWK
  • [x] ShoalOfFish [CC] (Data Compute + Image + Mouse Interaction) From: https://www.shadertoy.com/view/ldd3DB
  • [x] DiskDistance [MIT] (Simple + Mouse Interaction) From: https://www.shadertoy.com/view/3ltSW2
  • [ ] Bricks Game [CC] (2D Data Compute + Complex Game + Mouse Interaction) From: https://www.shadertoy.com/view/MddGzf
  • [ ] Reaction Diffusion [License Check Needed] (Multi-pass) From: https://www.shadertoy.com/view/XsG3z1
  • [ ] Goo [MIT] (Complex + Multi-pass) From: https://www.shadertoy.com/view/lllBDM

Rationale

ComputeSharp is really cool, so having a wide variety of samples shows folks what's possible with the tool. It also increases the number of converted GLSL shaders which helps provide a better reference for folks familiar with that technology.

FYI @ahmed605, @Sergio0694