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Idle Redraw Capture #40

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@AlasdairMott AlasdairMott commented Jan 6, 2022

Added a unform that contains the vieweport after the shader has been drawn. This adds possibilities for feedback loops inside of shaders.

  • Capture PostColorBuffer on idle redraw
  • Added _previousColorBuffer uniform to access PostColorBuffer

Rhino forum discussion

- Capture `PostColorBuffer" on idle redraw
- Added _previousColorBuffer uniform to access `PostColorBuffer`
Added draw diffuse grasshopper test
- Only update the buffer if `_previousColorBuffer` uniform is being used.
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