Hi, I'm looking for a cpu efficent way of streaming video from an external video preview window into a jit.matrix (for native processing). So far the best solution seems to be using vade's GPU accelerated screen capture plugin for Quartz Composer accessed through DIPS ( http://dips.dacreation.com/
) or Remy Muller's quartzplayer ( http://sourceforge.net/projects/quartzplayer/
Anyway, using Max4.6 I trying to find out how to perform a readback from VRAM to RAM for native processing in a jit,matrix. I'd be very interested in hearing about any possible solutions for achieving this, maybe by doing something similar to using glreadpixels with jit.gl.sketch or (in Max5) jit.gl.asyncread.
Alternatively a port of Vade's QC plugin would circumvent all what's mentioned above. Or, maybe someone would be interested in tweaking the code of quartzplayer for Max5 compatibility and "glreadpixels"/readback-functionality?