Re: [PD] problem with glsl shaders and texunits
Thanks for the help Cyrille and IOhannes, that's gotten me up the next step. -Ben On Thu, Mar 4, 2010 at 9:39 AM, cyrille henry c...@chnry.net wrote: after a very quick look, i noticied that it work if you connect the right output of the framebuffer to the right input of the 2nd texture, in order to set the coordinate. i thought that Iohannes had recently made some change in order to improve this, but this patch is not working better than before. maybe because the texture is use not the texunit 0??? Cyrille Ben Baker-Smith a écrit : Hello, I'm in over my head with glsl shaders right now. The attached patch is a test I'm using to try and figure out how to properly use [texunit( messages, but it only partially works. Instead of a clear image of me in front of my webcam, I get a changing series of solid colors. It responds to some rapid movements, so I know my video is making it to the shader. The shaders do nothing to alter the image, they are just there for testing purposes. I've tested by running the video straight through the shaders and it displays clear and normal, as expected. I've read some things about the image size needing to be a power of 2, not sure if that's related. Thanks, this stuff is nuts! -Ben ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] problem with glsl shaders and texunits
after a very quick look, i noticied that it work if you connect the right output of the framebuffer to the right input of the 2nd texture, in order to set the coordinate. i thought that Iohannes had recently made some change in order to improve this, but this patch is not working better than before. maybe because the texture is use not the texunit 0??? Cyrille Ben Baker-Smith a écrit : Hello, I'm in over my head with glsl shaders right now. The attached patch is a test I'm using to try and figure out how to properly use [texunit( messages, but it only partially works. Instead of a clear image of me in front of my webcam, I get a changing series of solid colors. It responds to some rapid movements, so I know my video is making it to the shader. The shaders do nothing to alter the image, they are just there for testing purposes. I've tested by running the video straight through the shaders and it displays clear and normal, as expected. I've read some things about the image size needing to be a power of 2, not sure if that's related. Thanks, this stuff is nuts! -Ben ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
Re: [PD] problem with glsl shaders and texunits
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 cyrille henry wrote: after a very quick look, i noticied that it work if you connect the right output of the framebuffer to the right input of the 2nd texture, in order to set the coordinate. i thought that Iohannes had recently made some change in order to improve this, but this patch is not working better than before. yea, still everything is a bit in flux here, so i reverted the changes that introduced the automatic handling here. it seems like they need some more thinking about how and when to reset the texture-matrices. so this basically means, it hasn't become much better than it was some months ago. you should still premultiply the texturematrices in the shaders though, because i'm pretty sure they will come at some point in the near future. mdgasr IOhannes maybe because the texture is use not the texunit 0??? -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkuP11QACgkQkX2Xpv6ydvStTACggVFLJLiefdu34C7wqM26CgO3 r2IAoNaOmzZe5zXUUvH3E4yVYMYJ8ZFZ =nHDL -END PGP SIGNATURE- ___ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management - http://lists.puredata.info/listinfo/pd-list
