3 ms·

what data do you want to extract?, all postprocessing effects are made with GLSL shaders, you don't process data with javascript algorithms.

• bitL 12y ago
  Just the call on getImageData to extract texture and read all pixels from an image can take 15s if CORS is in the play...
  • patrick73 12y ago
    you don't call getImageData to extract a texture data. You load the image, make a texture of it, and then apply all postprocessing effects with a WebGL shader.
    • bitL 12y ago
      OK, thanks for the hint! I'll try to play with CORSed image texture binding to see what the performance is.