Processing 1.0 - Processing Discourse - accessing Movie pixels

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Index › Programming Questions & Help › Syntax Questions › accessing Movie pixels

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accessing Movie pixels (Read 970 times)

drone

accessing Movie pixels
May 2^nd, 2005, 9:06pm

I've been trying to access pixel data from the Movie object, so I can apply effects before its drawn to the screen but i can't find a way. The only solution i can think of is to display the Movie with image(), then use copyPixel() into a PImage object and apply manipulations there,(so I can use it as a texture in OPENGL). This seems very inefficient though.
I'd try using PGraphics2, but from what I've read in these forums and what I've tried, it's broken in the current version.
Does anyone have any ideas of how to acces pixel data from a Movie object.

thank you

fjen

Re: accessing Movie pixels
Reply #1 - May 2^nd, 2005, 9:26pm

well .. movie extends PImage so it should be usable just the same ..

have you read this in the faq(?):
Quote:

When using the pixels[] array of the main window, or on an image, you should first call loadPixels(), and once you're done editing, call updatePixels(). This is because the new JAVA2D and OPENGL renderers both need to post-process the image data before displaying it, which is a time-consuming operation.

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