http://cycling74.com/forums/topic.php?id=18017 Cycling '74 Forums » Topic: corner pin adjustement of plane/quad with videotexture? en-US Tue, 07 Sep 2010 02:39:34 +0000 http://bbpress.org/?v=1.0.2 http://cycling74.com/forums/topic.php?id=18017#post-133849 Wed, 02 Jun 2010 02:32:41 +0000 e-ars 133849@http://cycling74.com/forums/ <p>I am new with max/msp, and not where paste the key patcher, tell me please </p> http://cycling74.com/forums/topic.php?id=18017#post-95515 Tue, 20 Jan 2009 23:14:50 +0000 pelado 95515@http://cycling74.com/forums/ <p>This makes the texture part a bit more efficient. You can send messages to<br /> the slabs to change the dimensions of their texture units if you need to.</p> <p>----------begin_max5_patcher----------<br /> 996.3ocuX1siapCDG+5jmBKj5c4fv7M8p87bbT0JGvg3sFL01jlcq569wePf<br /> jrIcy1XhTDnYvX+2+X73w4WKW3slsGK7.eE7efEK90xEKLtzNVLXuvqAsujh<br /> Dll40h+Ia8KdqrORh2KMtegH8qo9BJZMngw.OsgPwfxR+9W28ZHudMxmRjX+<br /> W1K.OUQZDkH0yCAvC8DkzhKY8sltKZv4FVqTPdCq8Ag9ACtY8RJVJesCaUtd<br /> zetl9rVM8br2JfmG3aCMlTYDnRz+Sr2Q8aKpw75d+KmfnGdRaeCoU04lIa3f<br /> yNjrbKos9YNtTZGxjzH+fjhhh7Uf3hbkz.vnP8s3X+fwAW0cVwZ6Osyeubo9<br /> xpaj28M31du+LOzjX3i33H+NFQTnUClSgiD2L7ldnpJhjryfuU5KncXNpdxd<br /> MmTuUR0Wl70yaGMpP7uiOxjrYCliaKm5hJV0QcHVMO6qlr2vw32lLqoreNZr<br /> EwqNcn2hQSFjVkXESuqooGokldpjzQeczQKtFImZeKi2niBFLYpdihlZMGug<br /> p+1evVTpj5TuKXaNiKBIpoaxpesjiJMzcj8pnJIugUY+Z99n0vrOY3J75gqY<br /> olPz3rDSjZPf4VwUiTi9KhTuRlAQGWE5sAvwnJPIy+KBcR.uO4J7KtdNL2gD<br /> Jyr5MInvtVN9CHDzcD5rbmdyTxuj4I6WRpEUAoe.wBuahsCwG0cm+.11Qpvr<br /> 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patch.<br /> I wouldn&#180;t say it was a big success, but it sort of works.<br /> I captured the gl.mesh to a texture and used that with a co.multiply slab with the movie.<br /> It is not very high res and is very inefficient.</p> <p>again referring, to the quartz composer example, he also has a mask version, so I have the feeling it is a very simple operation which I have overcomplicated.</p> <p>anyway, here is my attempt:</p> <p>----------begin_max5_patcher----------<br /> 3882.3oc6cs0jiZiE94d9UnxU17T2r5NvVapZRkZeHOuOljpKrQtaxfAG.2y<br /> LI09ee0ErA6w.B2.MLSpIwcCMFcNe5bSGIcze8t6VsN8Sh7Uf+E3W.2c2e8t<br /> 6tSeK0Mtq756VsK3SahCx0O1pMo61IRJVcu4uUH9Tg99aixxK.gYAaK.+wgf<br /> vcA4e3WS90jfhBwt8EQIOAJRAaB1WbHS.JdV.BixKRyJDg5mGDjCB.pWm5uG<br /> jDBjsz5nDAHp.7wnhmk+0couDI.GxUur.PdbvZmeMQ8pxD4owGJhRS.Q4fjz<br /> BPdJ3ozT8aU8.pV3iAY6AuHxxkO185Vn7Yk26y.w1sQahjblyQVKV13aROjn<br /> 4O+xatMMoHO5OEp6gvNvxambXWTRrnPiQnxatOnXyyRZ8wLwlBCFyopuC.gb<br /> 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this way :</p> <p>----------begin_max5_patcher----------<br /> 7072.3oc6cs9iihjj+yU+WAp18Nsaqpql7MbeZ1c08kSZzdZ0Jc2oQmJQYSW<br /> Myfeb13dppWs+uePFIXvEfSRbhwLLObYdXHyewiLxHxLh+wGt69m27Z396c9<br /> 2b9Im6t6e7g6tSdprSbm536teUvqKhC1Kus6WG9qad9mu+A3RIgulHO81cQq<br /> Sb1uHHNL+ZqOrZygj3vD4OzUc1sAIK9Zz5WdZW3hD3EiQhGcevg5ix9CyK6y<br /> rS47+p9MQKkuiz26mP4O8urYcx5fUgxq7m1EEDW9J6i9t7J9O5dr0DsNuwfx<br /> N2+7CeH6iG5YG+aA6bB1tM9MGR88bRy8bNW1WoYMSGtnsNN97cb3cl711P3o<br /> e+8On9+hGX8XyhMwa1A+F2GQLtGm7P527x9fQ8cwoMqRspdCkqB2uO3kv2gk<br /> OGGtd4Sq1rLzg6fpGMQMilTOWIejmDHgCPr5gShIv4YfwJ3B9hiKgqCR+hI3<br /> BvlQERDQvaCWniQboAQuDmmS+23NK0gvzLHfnj9v31j6XF.HOGr9kL4t7+1I<br /> .BcgAn5gGbKvSFbfckLKD21vFdewlqDtrKsUE5.sDS.GjPpvl0pBagoJruRf<br /> xxv3Lpdm0tnjlnDIlPosgIdlxvbE0vrKbabvhvtyonvEj24spwuGBR4suaS1<br /> FhuFrMH2QKeygUOGtKuMjZJXQiKN3siW34M6VFtqjYVfZjhObqZckdLXXr33<br /> 3432yekrKBrGOy56G8qAVQF.qol4+d02O+hd8sTzNZ0gUkmOP1q9KR92irK0<br /> SrRA97eLBKTm7q59pSQizlrBMpUlH+IlwZWwh3TKfQ97Gp8aR6hMfwYwlUqB<br /> 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This should be useful for a few others than me as well.<br /> &gt;<br /> &gt; hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95510 Mon, 19 Jan 2009 23:50:38 +0000 hc gilje 95510@http://cycling74.com/forums/ <p>excellent, thanks for sharing!<br /> I have had quite a few false starts trying to get this working, so glad you took the time to help me out. This should be useful for a few others than me as well.</p> <p>hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95509 Mon, 19 Jan 2009 23:36:14 +0000 Joshua Kit Clayton 95509@http://cycling74.com/forums/ <p> On Jan 19, 2009, at 3:16 PM, hc gilje wrote:</p> <p>&gt; \I am just wondering if this approach would work if I wanted to <br /> &gt; apply different warpings to different videoplanes. Since the matrix <br /> &gt; transform goes directly to the renderer in this example, I would <br /> &gt; need some way to connect individual matrix transforms to each <br /> &gt; separate plane.<br /> &gt; This is where I thought it would be handy to have a shader version, <br /> &gt; but would it work with your method if things are banged in the right <br /> &gt; order?</p> <p>Sure. You can also use jit.gl.mesh if it makes your patch organization <br /> simpler... So many different ways to do the same thing.</p> <p>-Joshua</p> <p>----------begin_max5_patcher----------<br /> 1957.3oc4akziahDF8r6eEHq4X2V0FayoNJZNjyywnnVXSY2jls.3NcRT9uO<br /> 0BXC1lhxXLMNiRTaCTT7p229Gk+0cyluL4MZ9bi+13yFyl8q6lMSbJ9IlUd7<br /> r4QdusJzKWLr4qCSh2FM+d4kR1VDRKJ9QJUNG7K6UL+di4K8h2L23KkiK0qX<br /> 0yAwadJitpPNTS.XA3dCnKl+go3.D6u6tmnf3fH1ihM5GfrqJOafu.FIK+5C<br /> 3JTrNItH1KRfg4eHKvKr5JLnWMG6mBF9ChYvVrff6OobwHNKp1LmG7SwLCQK<br /> .7y966ti+m60jvhoemA1J.UPeSr9m+0fhEaBWDQye1HJIw3wUIgIYFP4+Zke<br /> Y21SQdEYAuwIYkDLzwgyoDKKAOaiOhgqwkvt4xFzl66DswTu7EpVsQPcp2gb<br /> PBENSA6XATwJlfyjVNs1Db3nkhjMaBost5ChKTqSXCEKdaT0xt8EOw4bVhua<br /> h3mC78ow0Q1oD51t7kpb0qVlSvSMYdK7Tp2KBmEu5Exbtw8QZ.Vv+FbQqTmR<br /> kCrqvj.gEJGPrqJZB6blzjy0llFrHSDhj.bQ8Nxj6MQnoAiwvUwx6MiQ.2xA<br /> y4lhfRSwG1aKB5usHBHCWikDKQYvaB7OVaQDwVpYA6slE5+W1hDahfwP8lwv<br /> jacaQHyZrLr3tnhf9FUzVDUDJyZ.hMUFUz7O2nhREJnLowdoWYcqWvlrxKCS<br /> CAsgQLBf++GYocSyRGpx1D0qgkd7JKOtU8sgIY0qO6UXrzHTcF8cSLBGaXjj<br /> ePKLUvKnoFuLbQDkkxbI1gvaZ+6YzTZruQNsXEMLreN0qzkj4s5hTYigLugJ<br /> HDTF46gcg9.8OzGT1pjcg9TVPHhL0B8cVNxMPCiyaQ5AXyRaTkIK.cmZNohn<br /> 44danGQY4EIo8SExjHBigk8TP5zF5zhFz4FLCouFDbgoqIzw9c0ysLxED51W<br /> O2n+.53cFy4MMi2y6KKc.WAKZgDe3RTZngrudVZWflEmQVmluYaP6FWc5wAK<br /> RPjHySzAHc+zR6rQSRZfM6KoYJ6osNlWPrrUAx7mMAp0HzneSLO94q7BEWAr<br /> v88iftvl9KUMJ4ETG7B98oo+eKhVjkXrWrb9uXmxJkfhHMVpeaWmcxJiSnFE<br /> EOQy7xoFK6zmoXbZYuTxWXGc3qgIGX73vWkQZ3GuMiJe8pbLy91qATiGWGFj<br /> Z.Tlu2lvmJu8N8.S.xTbpz+TxjSy.Qsk2WF0y2vO4mzrELpqeY.RjuqQLP7g<br /> qrThVx.zYRZU1dVwdYE8LsXfc8zhgpHEHXRxJWXPoJqF.QinRva1fRUKSoHt<br /> Kur2RAk3NY+VwhRWpd9doECSCPqnLK6Z84pUNCOMSoskNzXPyW8v5sgg4qxn<br /> z3d1VlxRej6fEW07y4F3Fb95T0QJKOdIqTRKraIHj9JMKOHo9lzX178qGYho<br /> PP4tOnrmI0pggw1aBSV8B0uFBmM2mt9rljjTZ79aPPaM9SyQFDmlQyowEdEk<br /> Pu9C1aaXwSMXCvhSd80dqnsdymTdLa9lr.+jXNHZbm7SW83XZAhkHrwJTLhX<br /> uzSbyEIIgK8xdMHOXorjlcRBlprWb.y5jVDHwCBr69BhRyD9xqMWM1zf0j0M<br /> LKZb9CLOVkDEQiqhc1zF4eX0bkRM9v+9wO8IiOl3SqOpSXMHE7kNKfG0Gf1R<br /> .SsMQq9MNgsA3fI7j9OlU4CQ9k66IwIercvHHIWXZu.weEIRSAy1oDzEtnqj<br /> l74a9.tXal2USsj89PM9KX8QztqzNnKjjtrsNLWr111omqFDpUxDNhZPMhL0<br /> jSeg9CkLYYiXN9C8XXY6YHVcYgR5I+BZkeISC9MmFxnDCjsRV9nleplUsjps<br /> l1cQqlCtZKZDo0FUazcEGp4L2ROift3Lqd3YDdhU89HzgAwsE5T.W90OMcjm<br /> rMaU0ZszNwnIx8o4EAw6xW4y6D7GLt8aY151LQA9oILRrDdFeQKw24hZSMQs<br /> 0jB0VZhZ7jB0XMQMZ.Qc4IYvWVUPt2qT+mXOElM3SdErJ.WtsPZBTuJgKMkY<br /> EWpqr0YkVrzKrr5kcyQiY9HDc3bc2dVX3pt96Aw9IeW19ReZZwyK2tdMk+aD<br /> 4w04ddJp1Vu8SSYYjNxPGPKk0QZcS03xzjve7TDq3AV1g6SP7bqy1RTLooqL<br /> AQ.VUW5HVWul2z70vJd5MCjHopCcOTRXGG3ngeg17j4zXPG+qr3jNCNR7oKl<br /> N3w0heJyVvD3zXh.rEaRLGwG7sRW0QWJZc0kAw5i1KDS5IUMGWop4UPphkhS<br /> jMttTkezkhVKcYvwSphI5hIxzRSi+aRXD0zN3wMLZZ72kLW2xxrZq3VczkhV<br /> jtL3H5+.nKllXZZHxnpogzERinSBntXZ7DcHxUvf7RUmzIICh0nhIrN5SP2w<br /> GSvoElP5jJwAj40FSPsTxgirVtXusoApHMDxWeTg0FUiIWwkMnNPk4HqVA0h<br /> oFWWmVZgI62Ao2zDUvoFpzhpNyXeHfCOkXKmxe.M6O5RQqVEXiGWFTGGXiqP<br /> UOepmIMYZB3hwxeCKD39itTBDbMPKzRhOmFn04hQqyU.rDG30ArPz0.s0v2f<br /> hVac.63lwKd5AIcawXeqoicvuu6+.BH0GT.<br /> -----------end_max5_patcher-----------</p> http://cycling74.com/forums/topic.php?id=18017#post-95508 Mon, 19 Jan 2009 23:30:44 +0000 hc gilje 95508@http://cycling74.com/forums/ <p>your patch came while I was writing my post, so that is why my message about texture distortion appears after your example, sorry for the confusion.<br /> it works beautifully with 20x20 here.<br /> thanks again!</p> <p>hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95507 Mon, 19 Jan 2009 23:16:44 +0000 Joshua Kit Clayton 95507@http://cycling74.com/forums/ <p> On Jan 19, 2009, at 2:52 PM, hc gilje wrote:</p> <p>&gt; I just look at the output and see no unwanted distortion in the <br /> &gt; video texture in the qc example, and lots of distortion with my <br /> &gt; jitter test.</p> <p>Texture size? Use jit.qt.movie @adapt 1-&gt; jit.gl.texture to make sure <br /> that's not the issue.</p> <p>Dimensions of the plane's vertex mesh? Try 40x40 rather than 20x20.</p> <p>I'm pretty sure it's only one of those two possibilities. In your <br /> first example you were using a 320x240 -&gt; 256x256 down sampling <br /> without any antialiasing, which of course would have significant <br /> artifacts.</p> <p>-Joshua </p> http://cycling74.com/forums/topic.php?id=18017#post-95506 Mon, 19 Jan 2009 23:16:34 +0000 hc gilje 95506@http://cycling74.com/forums/ <p>thanks,<br /> yes it looks quite good here. I didn&#180;t mean to make you fix the antialiasing, that is one of the things I still know how to do :-)</p> <p>I am just wondering if this approach would work if I wanted to apply different warpings to different videoplanes. Since the matrix transform goes directly to the renderer in this example, I would need some way to connect individual matrix transforms to each separate plane.<br /> This is where I thought it would be handy to have a shader version, but would it work with your method if things are banged in the right order?</p> <p>I will try this out tomorrow.</p> <p>hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95505 Mon, 19 Jan 2009 23:08:21 +0000 Joshua Kit Clayton 95505@http://cycling74.com/forums/ <p> On Jan 19, 2009, at 2:55 PM, hc gilje wrote:</p> <p>&gt; So if get rid of the aliasing I will be happy</p> <p>Here you go with a natively sized jit.gl.texture object and @fsaa 1. <br /> That's as good as you'll get without some alternate form of texture <br /> filtering. Bilinear filtering (which is most likely the same as is <br /> used in QC/vvvv), will have visible aliasing artifacts when <br /> downsampling by large amounts. Performing gaussian/bicubic/mitchell/ <br /> etc filtering is more of an endeavor.</p> <p>-Joshua</p> <p> ----------begin_max5_patcher----------<br /> 1929.3oc4bs7iahCG9bl+Jrh1iyD4W7ZOMUU6gddOVUMhDbxPGBPAxzosp+u<br /> u9AIARBFGHggzUsMDvf8m+7u23zec2joySdikOE72fOClL4W2MYh7RhKLo77<br /> ISW6+1hH+b4sMMl88j4ec58plJXuUHubThevb+3UaaHYSQDqn3GoLUmOU1H3<br /> KkMm5Wr34v3UOkwVTntCL0cF7dfMlHO.Eeh4et6YBCjiDezevBtcbVlDWD6u<br /> VNJS+PVnez1Vh2rNLliAIrQ6unBY0tpnSxC+orSP3YPwU+8c2I93dCokhjUq<br /> hXMN6CiKzN4QDG4rVc.qcxScOmoXGlKWlk3mCCBXwUQ1IWz8DSUJp80bJYrs<br /> l2.Ok5+B.w+yq9Q.zLvC7+AmI9FZViTmVgChsqhXvhCHhmNZh3dlzj60llVF<br /> kv66Fm57l8KlduAVHnHEAXKOXcrzBeVEtlOT769AgD0wjiW6jCG6a6j88gAB<br /> V3QHigcf8jwnvaBFSipHrTU7g85hvtqKhbHJRTQrThVSVn+X0EwHGkjEpyRV<br /> 3+eoKRoTAI40YBiPu0UEQbkwRuh6bJB6pSQU3hHhRQjXo0on0erJhDk.kGry<br /> hU12xhUeMrX1Z+hrv2.V.IqQvbBP72G4AcyxR4RcOV7b1F.rQ1l2IOo5DAkq<br /> 29uksfhINp.0oZCYkbYBY85yhEf4fH8w02NwHMug8T7CdlkFdAO13kKmeQUB<br /> M8PcDcSakOikxhC.4rhErnnNFiUonjJ3UOrNULr0MTVgvR+eOryAHr6N.QV3<br /> ZN.0lUHlN1b.dV1yA3KisaKksIIUgvZCY.4M1rQslkm6uhcDkkWjj1MQHJRl<br /> 9Bkh2ayF41fDz45KCatDDZlkmEx048zvMR43x0qqFtw25gQsJZVF21MKCrNI<br /> oeACXKUsr8TY7P0pmgctdJZ8PvRvHKSyWsIrYcqVM3fkScKOoZlqTnRjnxIK<br /> oMdTRC7deNKSacsMR6BpJWfJ5YKndIBCp4D2fe9B+HYKvYdueDTOK7uMoBuf<br /> agWHuOE9+aqYEYI.Lr6ubmxooKV8VNzOMoiROMZRchk4my.ya0lo79LReYKE<br /> 4ZBecYBAlLL7UomFw4axXBWMfGEXl+sWCYfGWFEl1Rp5qhdp7wa0BLVUtVKn<br /> hBQZYxwoinlB6Ki4G.BR9IKaFm55ZQznpW+FdeRqME.n6nTqr4fh8yJ5Ho33<br /> UMpXjNRAAGkrROcJUp0PQTC7JgtYcJscZV91mawJ6sjSIgQ1uULSYRkHJGJ8<br /> hT8ysLlp5mHDRKkQFmQz1P8Y.r7EOrbSTT9hLFKtiEkQk4iiZSr3oWy4b8aC<br /> OeQppHkGFuhUJoE9iDFwdkkkGlTceZLY594iqLtTjJND71WxRkTX3r8pnjEu<br /> vBpfvISCXKOqNIIkEu+AjzVsOpemgwoYrbVbgeQIzqNv9ahJdpFa.mcx1W5u<br /> f03Cex0iISWkEFjDK.QsmTb4sCmnPSpf5qha4cD6mdhGtHIIZte1qg4gyUYz<br /> rakfKJ6GGx0NYEgJ7fg6dtv0oYRS4U5qZ6mqJq00TKpc8CTOVjrdMKdqqy55<br /> H+COkqTF3C+6G+zm.eLIfU8tNg1fZg2tzXwQkAno3uzqSznciSna.OnCOo8i<br /> Iasgn9x8cj3TCaKLBtLMXmYXw6GQoJX0Lkf64jd6pon+ldAmr0C6ptTxdanf<br /> +BU8NZ1TZKzEVQWN1GFJ1Qu7jNJAgajLQCnDTMOS04zWX+PKSVVGliOXFCq1<br /> 1gT61zPocjegMxuzwA+lyh3TB.6nkkOp1m5YUakXqkSazp0EWrEOfzZsjMZO<br /> gC8blWokQXablcGrLhNwrduG5nv3lbcJgqn8SSG4IaxVrctVpm.pi7.VdQX7<br /> t3U97tE9Ctu86Z1p5LqCCRS3jXI7.ewnkuyE0VFhZ6QEpsMD0jQEpIFhZ7ED<br /> 0kWjCeUVA49uxBdhOJbcvm7K3Y.NeSgREnZVB8MjYMM0Vz57TKl6GUl8xt9n<br /> VOeDhNrutaOKb4Rt96gwAIeWU8x.VZwyy2rbIKSrWiVl66CP8byzTlFo5U7i<br /> Q1Zyiz9lptkoIQ+3o07jG3QGtO.wyMOahLaBa0FaFAI5JRG095U6lK6qxeSN<br /> aegweMjcOXQRTRl7mS.BzQtZ6OrFUbHHGKsbk2PwUxQutSWE0cnozRB7Xmr0<br /> rg1jUe2Z2zw+nTNogyiVNMESGLbMXS2pALAOMlDa1PY1hxCHaxty5KZ8LkAI<br /> li1dhIyVUsF1UUqqwppZ4DSIUWUEm0WzZaJCNbqpDpoXhNtjzD+DNFPIsCFt<br /> Kijl30tasqxqakzTaDk9gVroL3.Z+.ZJlFYRZX5fJogMERCnQBjoXZ3V5vzq<br /> fBYOwjkQh3dCJlnlD3C0dPwDBaheaBYXAk23CSDSLFf7FdLgFWXxL4I7.Kja<br /> hEJz.ahRtGNM.UzZKxWeTQLFUCsYJbKnxZnEqLgoNSyTXUfnzx++LnxY8EsH<br /> iVWGTFz8JPfDKxUh.gWCz55dcPqYpwmIZo3R74UCsd8maMAsNCazZdFouLvf<br /> xdDBJBYDBJyBr88AUnwFpLhpNyDSPNTg0AGZYI02eVMzxO4228e.M0h+M<br /> -----------end_max5_patcher-----------</p> http://cycling74.com/forums/topic.php?id=18017#post-95504 Mon, 19 Jan 2009 22:55:51 +0000 hc gilje 95504@http://cycling74.com/forums/ <p>that was quick, thanks!<br /> I would have spent a bit more than 10 minutes on that :-)</p> <p>So if get rid of the aliasing I will be happy, and maybe I will force myself to make a shader out of it. Maybe that&#180;s a good idea if I want to include a whole bunch of these.</p> <p>hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95503 Mon, 19 Jan 2009 22:52:05 +0000 hc gilje 95503@http://cycling74.com/forums/ <p>ok, I am not obsessed with shaders myself, <br /> I just look at the output and see no unwanted distortion in the video texture in the qc example, and lots of distortion with my jitter test.<br /> So obviously I am missing something?</p> <p>hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95502 Mon, 19 Jan 2009 22:50:35 +0000 Joshua Kit Clayton 95502@http://cycling74.com/forums/ <p> Here's what I'm suggesting. Took about 10 minutes to make from your <br /> existing patch.</p> <p>----------begin_max5_patcher----------<br /> 2038.3oc2bkziahDF8r6eEHq4XGqZkk4TGEMGx44XTTKroraRv.Avc5jn7ee<br /> pMaC1FnLfI3QIwtY6iW8pu8p57qGlMeYxar74V+s0mrlM6WOLal7ThSLSe7r<br /> 4a8eaUjet71lGy9dxxuL+Q0kJXuUHOcThevR+3M6uPZFKmEW3WDlD+bFaUg5<br /> cfftK.OZQ8vhu.5Or9r9oR1UDwJJ9QJSc6ykh7vkS8KV8RX7lZEnsThnxhLL<br /> PhONleGErGcqShKh82JeKyeeVnez9qDuaaXLGCxAK73IUHqxYEBIO7mRg.QK<br /> .hy96GdP7wiFRlEIa1DwlW2nOLtnwAOD3nF0N6G10O3ItWyPrCiECULZYJ9k<br /> vf.VbYjcwIcOwPEBaeNmfmZy4qiR3xtE6DBlJGgXCsS3B0uX9iFXvTUxzyIO<br /> NWDtkCP9c+NAAeFkhcZmR4i38B4nLLfmQCGOWi9Xp+Wsf7+7peDGZhgHmYE+<br /> DbQspnMRnXrzCDzAo3UulTGwtWo5n6jPcD6pGbngVcrpj6j5n2cg5nQ7Lh.t<br /> Q7bUI2Edl.t2M6AZy92cztGzc6dHAqr6UDq5nZCCAuKs6gtNJsF3PqOVUxcR<br /> eD8+G6dBjHSkYvo4JBtSdWI2+A6A6C1eHVOnqw5UUa.AZmozFi0SuOi0aWJs<br /> 5AMTeYA2IcQ66YcwuDVrXqeQV3aVTKIqgQbBP72m3E5wxR4ppOU7R1NKPsZm<br /> bg7rRHBJuYOrHaAEiIphCIMVlDdXJS51yhEVKshZtVx1IFoOQjshePKnMvKn<br /> oFuXVdjp1gnSJYPyiTU5cOLhg20ATxXor3.qbVwJVTTGybTq.pLI8PMYXhnS<br /> s9WzXB1fCIXeH+5tFqEhPUh01Xc0HxTKV6UEEvBMLd7U4i3o5NFpwrSfdSMO<br /> aaY449aXmQY4EIocLcMWo+OBDczSuHCtKpAcsQ.QlqAAWP8n7Jd5s699TvkJ<br /> bG0qqNtQ26IesIZQF22MKyZaRR+RgPk3usszOtGoQ6LjysyPqGJVBFYcZ9lc<br /> g0aa0FMnF4TaoUlqTmRvLWbsWPSRVfK8krrFW.FSLtbTMyPkwMEzr9fA8Qi6<br /> tOekej7JfEd+43mdt.UpEYPyKnV3E7elEn5aaYEYIVHv7NuHj5gIUFlwF27v<br /> jLIiyzP4VrL+bl0xV8XJuOy5DftyotlvWCSBv3wgu1Wef3D6xX7HMuFx5VxK<br /> HhdE5rOwF5Rzj8sqJggmjJkCLwZ0K9YVHps7eOkF4Gy15mJWhNjEdHRKVSjD<br /> 0BzgZtPhoYv55RMNi4GXEj7SV1BtlVW6ooLJtdg37TUaUSRxtSReW0W3feVQ<br /> GIEhW4JGfMQJPvjjU5YnasUC1kXPra3can68NGz6kjVhEcOE5V3k8aEKjQf3<br /> 09BD8aZHcmp5qLTQb0RY3oYZ+0D81hku5cq2EEkuJiwh6XiqzUGp5AqWyVNW<br /> a1MfqWkpLR405nXEMsvejvH1qrr7vjx65pYyONdbUIf.bUgO0cUpTcdb1dST<br /> xpuxBJgvYyCXquJgjvyb53CTY4mpz9Z0cFFWt22m9h82EU7bE1.r3hWes+JV<br /> sO7EmOlMeSVXPRr.DUdRwo2+53ZApsYUkQn7Nh8SuvCWjjDszO60v7vkp59N<br /> LSvUk8iC4VmrhPEdPfCOW31zLoq7Rxpxd5rzbcEyhJm+DyiUIa2xh2G5rpMx<br /> +vKLMkY89+8Ce7iVeHIfU9ttf0fZh2V6r3rVkTW9WMaSTqeiKXa.NQfWz+wr<br /> 89PT+vicj3Tu1VXDjhKnNKPhUdRYJPqmRP8bPue1THu4C3fsZZWU0RN5C05u<br /> fkui5ck1BcgTzki8oohc1BL0QMHTsjIbD0fpDYpJm9U1OZjI0Mq57uLigwxO<br /> I1sYgR5H+BpkeISC9MmEwoDKjSir7Y8GtYV0Vo1RcZiVoCtZKZDo0JEazdAG<br /> MyYdZOif13L6N3YDdgQ8wHzQgw0E5TBWw0uLcjmrKa09wp1NwpJxCX4EgwGx<br /> W4SGl3O49NtG3KayrMLHMgShZ3Y8Yil9tVTSMD01SJTaaHpwSJTiMD0nAD05<br /> Sxguppfb+WYAOyeKbavm8K3U.tbWgxDnbUB8Mk4FtTaYqyKsXoejt5kCxnhj<br /> OCQmJqGNxBCWw0eOLNH46hESz5o.VZwKK2sdMKyB1ysmjp3HG81evo45Gsuq<br /> 5WYZRzOddKunAdVgGSL7ZquFn1SqX89CA2Ty4H12td1Lraygc4rJqZviVqRh<br /> RxjcBGZ0QtBIsj3bEQoLQajq7FKtR91qFrUQcm5BUSfmGbshuy5716V4lN+W<br /> srK5v7roSSwzIutZ7kSqASfKiIw12TjKDR9k32Zq8G0Wz5XJCRLGs8ESdlhI<br /> 7ngIyzzniqlF8VnooTwPPbYMMwQ8Es1lxfi2rJlXJlHSKMMwuHQinl1IutgQ<br /> SSrQIn51+dTSS0L39gVjoL3H5+.XJllXZZHxnpogLERinSBnoXZ7l5PjafAY<br /> OwD0HUbuQESDSRkPt2LGSPYRFhD6wES1SPhBimffBhLIsqSf9MGTdSOLgMwW<br /> Nza7wDbZgIyzmPiJltIdCPpD9nT8NG4vAihE4eF+DvIGpHFwUzQFU.iPEoBi<br /> d6QE1XTM15UnVPEEMxfxDlB2I+ED0+y5T9n9hVnQyqiJC5dCHPLBeiHPvs.s<br /> T2aDZMwLdbcCaRWWs6l0hmSY5SbTeoOihtdknEpB+6.UaqmRG02rov2BUSOs<br /> xnWEUSuSPK+fe+v+Am3GUaB<br /> -----------end_max5_patcher-----------</p> http://cycling74.com/forums/topic.php?id=18017#post-95501 Mon, 19 Jan 2009 22:34:50 +0000 Joshua Kit Clayton 95501@http://cycling74.com/forums/ <br /> http://cycling74.com/forums/topic.php?id=18017#post-95500 Mon, 19 Jan 2009 22:18:23 +0000 hc gilje 95500@http://cycling74.com/forums/ <p>I was sort of guessing that was the problem, but that still makes me wonder why such a simple shader as the one I linked to for quartz composer doesn&#180;t have this issue with the texture.<br /> Is a quad and a quad different things in quartz composer, jitter and vvvv? (the first ones are based on opengl, the last one on directx)</p> <p>hc </p> http://cycling74.com/forums/topic.php?id=18017#post-95499 Mon, 19 Jan 2009 21:57:26 +0000 Joshua Kit Clayton 95499@http://cycling74.com/forums/ <p> On Jan 19, 2009, at 1:18 PM, hc gilje wrote:</p> <p>&gt;<br /> &gt; here is a simple patch with a quad using a video texture, but the <br /> &gt; texture gets a pretty nasty distortion even with moderate tweaks of <br /> &gt; the quad, so I need to do something with the texture coordinates as <br /> &gt; well I assume?</p> <p>Sorry about that. Yeah, you'll be better off using either a more dense <br /> vertex mesh, since a simple quad breaks down into two triangles and <br /> interpolates only within each triangle.</p> <p>The basic idea would be to make a 4 cell matrix containing each of <br /> your corner xyz values, and the standard texture coordinates, and then <br /> send it to a 20x20 or whatever jit.matrix @interp 1. This will make a <br /> mesh which can be sent on to jit.gl.mesh, jit.gl.sketch drawmatrix, or <br /> jit.gl.render or whatever your preferred means of drawing vertex data <br /> as a trigrid/quadgrid. The more vertices in your mesh the better it <br /> should look.</p> <p>-Joshua</p> http://cycling74.com/forums/topic.php?id=18017#post-95498 Mon, 19 Jan 2009 21:18:17 +0000 hc gilje 95498@http://cycling74.com/forums/ <p>here is a simple patch with a quad using a video texture, but the texture gets a pretty nasty distortion even with moderate tweaks of the quad, so I need to do something with the texture coordinates as well I assume?</p> <p>hc</p> <p>----------begin_max5_patcher----------<br /> 1769.3oc4Z0zbapCEcs8uBMLYoiGjDe1UsSm2ht9srSmLxFYG0fAWPNM80o+<br /> 2eRHvFbrvBLl3oYQrCR.5bO5py8dk7umNwZQ5KzbKvG.eELYxumNYRQSxFlT<br /> d8DqMjWVFSxKtMqMz7bxZp0LUeb5K7h1y4oaqZbUZBOm8eTYGP3b2PWXfeYe<br /> ayn4zDNgyRSdHitjqFbrWvb6Y.bnu7K6xO.eq7oR1sgkDS4EX.U8pH7kOxRV<br /> q80fQycmAfA0dQrnBzlt362iv0waBYSAds9TFiDacXbS2wqFXXYqpl3+ZKUM<br /> pVVfuI64OSmJ+XlgT4hcbdZh0oLQndSDFDJsMnaAIg1+4IMQTGMjEjj08yXz<br /> 4WHmt4y.qiWvRhjstKiB1j9LiVzHcMKA7icjnb4kh9WlllEAfBHJt9YZlnIv<br /> cPvcnF8a2reL3Nmi52td+tf67N582neevcAxqoIQUFPLKgtLcWButGWObrUd<br /> hHO7E4WG5T7VbPxu7rK9BC0Loa+F6WmP+o.GuxSXK4Iv8v4E+c3q8+2IEOjF<br /> 5IXp.8LERQNPee0pDbaqOfguwT0p3Tw6uZnDcw1HtTNN6MbM7gNcTGkAWbmm<br /> weqEQFLRIxXW71baUjA52URrxQWfkJ689CF7qnVAIQ3VytD0oqEOCCsGBdN.<br /> Z.MG7NjlQNACg6LLz0X24v2uz7k5MCCwF6M67tTzPEax06BEMJlsb7OOM+dl<br /> kwNCAKibOOK69tTxnLAK+KTxnXxRo+zNKi+alk6Heg7NOegt84KMUJ7cFe95<br /> 34YhxwnYhhESMYiELmAKnNUUzk0UoKHEp2o1d5Jqm025DjLxps4q2wFRpvWQ<br /> EpEeAENSXWMRbnAiI5OKHFfEzLSX.dFKeIItnO64g8hWb7rMHOltWssVhgkb<br /> gKm3oqWGS65FJgcqYsnyXs3NVVrzlFRogergxyRAMYciVGfNKCDTHp509NFf<br /> bFrsLXv0M4fE.ZFImBVLjxDJ5wUUC14nmNmKD9bJlEVzUINiH0lshXLfFaK4<br /> PxbnxL0CKpHBphZqi67tM21NYnmMDgf5K.GvxGIYhTh8J96iaiIIzMjsxsqE<br /> f.3qA0oxuDgCai5FtvzBq8Ak01+vT52JbRzPJagBO5vNr0eXGAuwNW5O1HRF<br /> eP0xUk8UQJv1HE3a8Nk2u.1kKMvdgFDwF92X.6JFHznH12tArkZq+PHuJi6H<br /> V.aKpp19ZHhVpM.gsRT3aJUTcwrAz7k2uZWbb9xLJMoyzkcKkFppMzCVvZgs<br /> uvxcH0NpiIQENJVojVDi.Kl9LMKmklT6EMw5.xUotBsUaYkJgMjcsZ4Dr853<br /> zkOQipwASrhnq5zKIUjuzgGnwtE2X+eT2IKo9lGc7.S1Eyenwzl87S1+JxRp<br /> 1G9jL+Dq0YrnzDIHZ7jxlqFNw7s5TAZXgE2QBY6IdXdZZ7BR1yrb1BUok6mI<br /> DtxjDlvkmxYJ7fr2+brMayXpCRdeaBUQRDgST.o1rT8eOF07AZrboQ6GsrYY<br /> 5lMzjpPpMW67OhZh2RAe5e+7W9B3yoQz52UKKfzp4nagTYkTpcHD9p8XQW5a<br /> sub5DKorq5nPaQ8Oy5IwodsV8zhQ62MTja0lFib0axnVLpZ8TMaJeLqAzXal<br /> NVSujCZqf6f81CAYDegT7ku2woooaye6rKR84McYsMPjZiHVM4zmn+p2LosI<br /> LI1WsINmaolSe4Qm13wxct50eMV7aNMVPH.j+00e0S4tVVSZKzraeoYTaz7Q<br /> 6g7.QqMJBomBegk5d1miX754JUsNSGBcJ+EaoIzYAtk8eZ5HOcW1xpQpTsAz<br /> zDhn4bVx97X95dU7ituGYQQMSaPchJQaSElPdU3dil95Jp8LD03aJT6ZHp8t<br /> oPsign1c.QcYiB3qpVHm7LM5AwnHVL9.gKJ2ZwNtZIP8pGD48ufDWVZwdcHK<br /> SyD+jYf2qz1aIc8Vxne5AVX3J59mrjnzeJOZQvGina4OtX2pUzL.bPOowxxI<br /> KOob+1qmz6F4nFa+LYyehJryg9LYU+7rvkwRNyYx5cEOIxhQrYjDEmcr9PIy<br /> 8JcATCwUMhBvl2zqTDNVM.66K+gr6fTLC9vUZlgMFsHSPaX2P6EhIroPxezf<br /> jwrj2nAIGSgj6nAIWSgjynAI4OMYyvDd7vTfoXBMZXJzTHAGOZx41SZBZBOI<br /> OoiQDSGMbZ3Ij23RTFoEzQLAQAx3ddk+7Nqc0EhVSDI5HVqhQGfpGwN3xwJz<br /> jvi9i6js80HkGGrJIGbiTdvWLAFbM.qs+0ArxSu0fE2i6zM5Jvf04rgkAk+f<br /> jpEIUSU5iMEZTRtHmQFU1FipQLO.jQIBfbGYtxsAKnCU9uAnx9FCUdWCLUJQ<br /> 3hUGVcv9KNpb9o+Y5+eTQwfJ<br /> -----------end_max5_patcher----------- </p> http://cycling74.com/forums/topic.php?id=18017#post-95497 Mon, 19 Jan 2009 17:04:29 +0000 Joshua Kit Clayton 95497@http://cycling74.com/forums/ <p> On Jan 19, 2009, at 8:36 AM, hc gilje wrote:</p> <p>&gt; I am trying to achieve something which seems simple in environments <br /> &gt; like quartz composer/vdmx and vvvv: corner pin positioning of a quad/ <br /> &gt; plane.</p> <p> Something like the following email coding should be all you need. You <br /> might need to flip the texture coordinates to get the proper texture <br /> orientation. Check out the redbook if the following doesn't make sense.</p> <p>glbindtexture texname,<br /> glbegin quads,<br /> gltexcoord 0 0,<br /> glvertex left top 0,<br /> gltexcoord 1 0,<br /> glvertex right top 0,<br /> gltexcoord 1 1,<br /> glvertex right bottom 0,<br /> gltexcoord 0 1,<br /> glvertex left bottom 0,<br /> glend</p> <p>-Joshua </p> http://cycling74.com/forums/topic.php?id=18017#post-95496 Mon, 19 Jan 2009 16:36:36 +0000 hc gilje 95496@http://cycling74.com/forums/ <p>Before I twist my brain yet another turn:</p> <p>I am trying to achieve something which seems simple in environments like quartz composer/vdmx and vvvv: corner pin positioning of a quad/plane.</p> <p>If you take a look at this link there is an example video and also the shader used to create the warp for qc/vdmx: <a href="http://www.memo.tv/projection_mapping_quad_warping_with_quartz_composer_vdmx" rel="nofollow">http://www.memo.tv/projection_mapping_quad_warping_with_quartz_composer_vdmx</a></p> <p>In vvvv there is the homography module which does the same thing.</p> <p>I have looked at different keystone examples on the list (particularly jasch and robtherich), but they seem quite complex to achieve a simple corner pinning (and also I would want many instances in my setup).</p> <p>I have figured out how to capture parts of or the whole gl scene to a texture, and then ideally I would want a shader based on the code from the link above:</p> <p>uniform vec2 BL, BR, TL, TR;<br /> uniform vec2 renderSize;</p> <p>void main() {<br /> // transform from QC object coords to 0...1<br /> vec2 p = (vec2(gl_Vertex.x, gl_Vertex.y) + 1.) * 0.5;</p> <p> // interpolate bottom edge x coordinate<br /> vec2 x1 = mix(BL, BR, p.x);</p> <p> // interpolate top edge x coordinate<br /> vec2 x2 = mix(TL, TR, p.x);</p> <p> // interpolate y position<br /> p = mix(x1, x2, p.y);</p> <p> // transform from 0...1 to QC screen coords<br /> p = (p - 0.5) * renderSize;</p> <p> gl_Position = gl_ModelViewProjectionMatrix * vec4(p, 0, 1);<br /> gl_FrontColor = gl_Color;<br /> gl_TexCoord[0] = gl_TextureMatrix[0] * gl_MultiTexCoord0;<br /> }</p> <p>I have so far not been able to get this shader code to work in jitter, I haven&#180;t worked with vertex shaders before, and haven&#180;t found any similar types of shaders to point me in the right direction.<br /> So if someone wants to help me out, or point to some good examples, or explain why this wouldn&#180;t work at all, that would be great!</p> <p>Another related question from a earlier post by fp which has been left unanswered:<br /> he had made a simple patch where a video texture was sent to a jit.gl.sketch object. When used with the plane command it worked fine, but when trying to use a quad (which would do what I am looking for) the texture disappears.<br /> So why doesn&#180;t quad like the texture?<br /> Here is the link to that thread (patch is the last post in the thread:<br /> <a href="http://www.cycling74.com/forums/index.php?t=msg&amp;rid=0&amp;S=d3700dd9c5aa4636cd29fced1d3230b8&amp;th=34641&amp;goto=147027#msg_147027" rel="nofollow">http://www.cycling74.com/forums/index.php?t=msg&amp;rid=0&amp;S=d3700dd9c5aa4636cd29fced1d3230b8&amp;th=34641&amp;goto=147027#msg_147027</a></p> <p>thanks,<br /> hc</p>