here is an example c Le 05/11/2013 16:10, Marco Donnarumma a écrit :
Hi Cyrille,ok, I now managed to use gemframebuffer in a smaller test patch. For some reason, in my larger patch it crashes everytime I connect it to the pmpd system. Had to use [scaleXYZ 0.5 1 1] to fit the rectangular dimension of the gemwin. Could you explain a little more how you achieve the motion blur? i.e. what do you mean with "just render 10 primitives for every image..."? thanks! M -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.liveperformersmeeting.net On Tue, Nov 5, 2013 at 11:35 AM, Cyrille Henry <c...@chnry.net <mailto:c...@chnry.net>> wrote: hello Marco, better than snap2tex, you can use rendering in framebuffer. The framebuffer can directly be rendered as a texture, no snapping is needed. i did not understand the way you make your motion blur. I usually have my model to run at a frequency 5 or 10 time faster than the rendering. then, you can just render 10 primitives for every image... or make 10 rendering per frame, and average them in the final render. cheers c Le 05/11/2013 12:08, Marco Donnarumma a écrit : Hi all, I have a 1900 x 800 gemwin. I render a few geos on a big [sphere] and a pmpd system on top of it. I'd need some cpu-friendly motion blur and glow effects on everything rendered in the gemwin. My strategy so far has been to split the final rendering into two 800x800 squares. That is: I have two [snap2tex] snapping two separate [gemwin -1] onto two [square]. One [snap2tex] has 0 0 offset, and the other has 800 0 offset. Then, by modulating the opacity of [colorRGB] for the 2 squares I can get motion blur effect. This works fine, but the same splitting strategy doesn't work for shaders. If I apply a shader to the two [square] the coordinate of the texture are all mixed up. Also, when applying the shaders the cpu go up +30%, whereas [snap2 tex] takes way less resources. is that normal? What's the best way to go here? thanks! best, -- Marco Donnarumma New Media + Sonic Arts Practitioner, Performer, Teacher, Director. Embodied Audio-Visual Interaction Research Team. Department of Computing, Goldsmiths University of London ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Portfolio: http://marcodonnarumma.com Research: http://res.marcodonnarumma.com Director: http://www.__liveperformersmeeting.net <http://www.liveperformersmeeting.net> _________________________________________________ Pd-list@iem.at <mailto:Pd-list@iem.at> mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/__listinfo/pd-list <http://lists.puredata.info/listinfo/pd-list> _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
03_chaos2D.pd
Description: application/puredata
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