Hi p f i have seen caspar before, interesting project. I started checking your glsl example and am starting to discover the shader beautyness!!
the original keying project went dead because artistical difficulties, but i will research a little more.. Am 08.09.2015 um 16:44 schrieb Py Fave <[email protected]>: > check this > > http://www.casparcg.com/ > > 2015-09-07 19:28 GMT+02:00 hi <[email protected]>: >> thanks for the answer! >> >> i will need to start to use shaders one day, i know that long already >> **dream** For now the project goes back to the drawer >> >> I would love to see a new pd convention to find motivation for week intense >> pd work.. >> >> >> Am 26.08.2015 um 09:46 schrieb Py Fave <[email protected]>: >> >>> you need to use glsl shaders to do that efficiently . >>> >>> first check for existing shaders >>> >>> you will need a powerful gpu >>> >>> >>> >>> ------------ >>> this is a lumakey example (was sent to me by chdh) >>> -------------- >>> keying.frag >>> >>> ------------- >>> uniform float R,G,B,K; >>> uniform sampler2D texture; >>> >>> void main (void) >>> { >>> float d = 0.; >>> vec4 color = texture2D(texture, gl_TexCoord[0].st ); >>> >>> d+= abs(color.r - R); >>> d+= abs(color.g - G); >>> d+= abs(color.b - B); >>> >>> d*=K; >>> >>> color.a = abs(d); >>> >>> gl_FragColor = color; >>> >>> } >>> >>> ------------------------------ >>> >>> >>> 2015-08-12 15:13 GMT+02:00 hi via Pd-list <[email protected]>: >>>> Dear Pd folk, >>>> >>>> I am investigating options to improve chroma keying within pd and gem to >>>> use within a theater installation. I need more advanced keying features >>>> than seemingly possible with [pix_choma_key], like border corrections and >>>> smoother edge transparencies. The best thing i found so far is this: >>>> >>>> http://forum.pdpatchrepo.info/topic/2953/neat-chroma-keying/3 >>>> >>>> very nice, but i would need more a quality like in readymade video mixers >>>> Did any of you program anything like that? >>>> >>>> Also i'm trying to find out, whether a potential setup with a computer >>>> with 4 HD-SDI inputs would be capable of keying 2 HD-live-signals at the >>>> same time and overlay that over one HD-live-background. >>>> >>>> Are there any experiences (hardware and software) from your side, you >>>> could share? >>>> >>>> I would so much love to make this happen with pd and not with an expensive >>>> video mixer i would have to buy. >>>> >>>> Any help or ideas are appreciated. >>>> >>>> Love to pd, >>>> >>>> jonny >>>> _______________________________________________ >>>> [email protected] mailing list >>>> UNSUBSCRIBE and account-management -> >>>> http://lists.puredata.info/listinfo/pd-list >> _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
