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All the filters and adjustments are implemented in webgl. Some of the local brushes do per pixel adjustments on the 2d canvas.

• amelius 7y ago
  Ok, I guess I have to read up on WebGL's capabilities one of these days. Curious, how did you implement the "flood fill" operation?
  • poniko 7y ago
    Flood fill is one of those that's not ideal for GL so they are implemented with canvas 2d.