Hello
I would like to be able to interactively pan across VERY large images,
on the order of 5000 x 5000 pixels in size.
I have been able to implement a realtime solution to this with Max/MSP
and Jitter by doing my 'pan and scan' across two cropped versions of
my image.
My solution first crops down to 2048x2048 on the CPU side, uploads
this as a static texture (this size seems to be supported on most
cards on the high end), then pans around this texture on the GPU with
ease. When I move across the bounds of my smaller 2048 sub cropped
textured I then move to the first crops origin, and reupload the
texture, and continue panning on the GPU.
How can one do this with Quartz Composer? Ive attempted to stupidly
just load my 5000x5000 image with an Image Loader, but , as I
suspected, hiccup city. If I crop this, it will display just fine,
but interactively changing the crop location for the larger portion
causes hiccups.
Is this a case for writing a custom QC Plugin to do this?
Any pointers?
Thank you,
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