May 6, 2008 
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May 6, 2008 [00:02:30] *** mattn2|home has quit IRC[00:03:41] *** neoneurone has quit IRC[00:05:49] *** Jorachim has quit IRC[00:05:52] *** _boto has quit IRC[00:08:11] *** Xmas| has joined ##OpenGL[00:10:44] *** aalex has quit IRC[00:19:14] *** groton has quit IRC[00:19:31] *** HuntsMan has quit IRC[00:21:51] *** [this] has quit IRC[00:22:03] *** LiQuiDninja has quit IRC[00:25:34] *** replor has joined ##OpenGL[00:30:32] *** deathstar550 has joined ##OpenGL[00:40:10] *** TurboAWAY has quit IRC[00:46:06] *** Gonzo has quit IRC[00:47:29] *** Suprano has quit IRC[00:51:45] *** korff has quit IRC[00:58:55] *** Walt_ has quit IRC[01:00:45] *** JernejL_ has joined ##OpenGL[01:04:20] *** JernejL has joined ##OpenGL[01:05:39] *** Walt has joined ##opengl[01:08:19] *** p3sho has quit IRC[01:08:35] *** p3sho has joined ##OpenGL[01:10:52] *** p3sho has left ##OpenGL[01:15:03] *** Gonzo has joined ##OpenGL[01:19:14] *** Jernej has quit IRC[01:21:02] *** JernejL_ has quit IRC[01:21:08] *** 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IRC[02:28:25] *** mastro has quit IRC[02:40:37] *** apple_ide has quit IRC[02:45:50] *** hibread has joined ##opengl[02:56:18] *** HuntsMan has joined ##opengl[02:56:50] *** nathan_ has quit IRC[02:56:55] *** juanmabc has quit IRC[03:21:35] *** TehLorax has joined ##opengl[03:21:58] *** TheLorax has quit IRC[03:36:50] *** hydoskee has quit IRC[03:43:15] *** reduz has joined ##OpenGL[03:43:21] <reduz> hey openglrs![03:43:29] <reduz> I'm learning GLSL, mind if i ask some questions?[03:44:45] <reduz> here's the first one: say i want to do some skeletal animation, and i send vertex weights/bone matrices in separate arrays, then i want to make a shader to process that[03:45:37] <reduz> depending on if the array has 1/2/3/4 to 8 weights, can i set the amount of weights per vertex as an uniform value? or should i compile 8 different vertex programs for each weight amount?[03:46:09] *** TehLorax has quit IRC[03:49:40] <reduz> oh also another question, can i retrieve a list of uniform params from a shader?[03:50:41] <HuntsMan> you can retrieve the names/types of active uniform variables[03:51:13] <reduz> cool, how do i do that? also, do you know what should I do about the bone processing question above?[03:51:37] <HuntsMan> glActiveUniform i think[03:51:44] <HuntsMan> no idea about skinning :P[03:54:04] <Satan_Inside> HuntsMan was close but its actually glGetActiveUniform( ... ) -- http://www.opengl.org/sdk/docs/man/xhtml/glGetActiveUniform.xml[03:55:13] <reduz> ah thanks HuntsMan, Satan_Inside[03:55:28] <reduz> Satan_Inside, do you actually know about how to implement the skinning problem mentioned above?[03:56:27] *** Neo|Laptop has joined ##OpenGL[03:56:40] *** NeoServer has quit IRC[03:56:52] *** NeoServer has joined ##OpenGL[03:58:00] *** NeoThermic has quit IRC[04:01:49] *** rodietze has joined ##opengl[04:14:35] *** blight_ has quit IRC[04:14:39] *** rutski has joined ##OpenGL[04:14:49] *** deathstar550 has quit IRC[04:15:02] *** deathstar550 has joined ##OpenGL[04:19:29] *** BahamutZERO has quit IRC[04:22:10] *** Neo|Laptop is now known as NeoThermic[04:26:00] *** BahamutZERO has joined ##OpenGL[04:31:35] *** rodietze is now known as niteon[04:32:04] *** aalex has joined ##OpenGL[04:36:12] *** amz has quit IRC[04:45:31] *** nathan_ has joined ##OpenGL[04:55:14] *** m4ggus_ has quit IRC[05:12:01] *** BahamutZERO has quit IRC[05:15:43] *** TheLorax has joined ##opengl[05:28:03] *** hibread has quit IRC[05:28:50] *** vasoq has joined ##OpenGL[05:29:39] <vasoq> is there a way to have opengl just reshape once? my display function has a translate so every time it reshapes it also translates it again which i don't want[05:30:29] *** rnx has left ##opengl[05:31:25] <LiraNuna> opengl doesn't reshape[05:31:27] <LiraNuna> the OS does[05:31:31] <LiraNuna> more like, the WM[05:33:11] <vasoq> well however you put it, glutReshapeFunc() causes the screen to be redrawn every time the window is reshaped, and the translation happens repeatedly[05:33:41] <LiraNuna> okay, you use glut, that's a good start,[05:33:51] <LiraNuna> well, my suggestion would be use a boolean[05:33:58] *** twilightstar has joined ##OpenGL[05:34:37] <twilightstar> hey I can't get into java[05:34:45] <twilightstar> any one know How I can get in[05:40:23] *** mm765 is now known as mm765^sleep[06:04:47] *** XSource has joined ##OpenGL[06:07:09] *** deathstar550 has quit IRC[06:08:10] *** deathstar550 has joined ##OpenGL[06:24:02] *** niteon has quit IRC[06:33:46] *** twilightstar has quit IRC[06:36:28] *** Lemml has joined ##OpenGL[06:37:43] *** TheLorax has quit IRC[06:44:32] *** Andon has quit IRC[06:49:11] *** Andon has joined ##OpenGL[07:00:24] *** mm^away has joined ##opengl[07:00:52] *** deathstar550 has quit IRC[07:02:07] *** deathstar550 has joined ##OpenGL[07:12:10] *** vasoq has quit IRC[07:17:33] *** mm765^sleep has quit IRC[07:19:24] *** nathan_ has quit IRC[07:35:48] *** Lemml has quit IRC[07:51:42] *** charlie_zzz is now known as charlie5[08:06:22] *** mattn2|home has joined ##OpenGL[08:12:57] *** Castigador has joined ##Opengl[08:17:12] *** karabash has joined ##OpenGL[08:28:14] <karabash> hi[08:29:16] *** scy has joined ##opengl[08:43:34] *** aalex has quit IRC[08:44:28] *** scy has left ##opengl[08:49:36] *** neoneye has joined ##OpenGL[08:56:54] *** deathstar550 has quit IRC[09:04:02] *** korff has joined ##OpenGL[09:04:32] *** Roderic has joined ##OpenGL[09:04:33] *** Roderic is now known as Ingenu[09:06:45] *** [this] has joined ##opengl[09:24:13] *** [AD]Turbo has joined ##OpenGL[09:24:43] *** Suprano has joined ##OpenGL[09:25:06] <[AD]Turbo> yo[09:29:35] *** mattn2|home has quit IRC[09:30:34] *** groton has joined ##OpenGL[09:30:59] *** Chrizo has joined ##OpenGL[09:31:38] *** Burga has joined ##OpenGL[09:44:16] *** XSource has quit IRC[09:56:45] *** ajww has quit IRC[09:57:56] *** charlie5 has quit IRC[10:01:37] *** servus_ has joined ##opengl[10:03:28] *** IJs\laptop has quit IRC[10:07:03] *** charlie5 has joined ##OpenGL[10:07:32] *** Ademan has joined ##OpenGL[10:18:55] *** servus has quit IRC[10:19:10] *** servus has joined ##opengl[10:21:10] *** tola__ has joined ##OpenGL[10:21:11] *** tola has quit IRC[10:21:55] *** avacore has quit IRC[10:23:34] *** servus_ has quit IRC[10:41:05] *** reduz has quit IRC[10:53:52] *** HyperNewbie has joined ##OpenGL[11:00:14] *** BahamutZERO has joined ##OpenGL[11:08:25] *** tola__ has quit IRC[11:08:56] *** karabash has quit IRC[11:13:43] *** MatthiasM has quit IRC[11:13:49] *** MatthiasM has joined ##opengl[11:15:20] *** Chrizo has quit IRC[11:19:08] <HyperNewbie> hey[11:19:13] *** karabash has joined ##OpenGL[11:19:26] <HyperNewbie> does anyone here know how to intersect a 3d line with a 3d plane?[11:19:38] <HyperNewbie> (the plane is just flat at 0,0)[11:19:53] <HyperNewbie> (the line is two sets of x,y,z co-ords)[11:21:29] <dindinx> HyperNewbie: you want to compute the intersection coordinates?[11:22:24] <HyperNewbie> dindinx: yes[11:22:35] <HyperNewbie> dindinx: the plane is just pointing straight up and lying at 0,0,0[11:23:23] <dindinx> the line is defined by two points, say A and B, right?[11:23:44] <HyperNewbie> yes[11:23:47] <dindinx> then any point on this line is A+t(B-A), right?[11:23:59] <HyperNewbie> m hmm[11:24:21] <dindinx> parametric definition of a line.[11:24:46] <HyperNewbie> point + vector[11:24:47] <HyperNewbie> yep[11:25:00] <dindinx> any point on the plane have y=0[11:25:09] <HyperNewbie> yes[11:25:43] <dindinx> so A.y+t(B.y-A.y)=0 for the intersection point.[11:26:15] <dindinx> so t = -A.y/(B.y-A.y)[11:26:44] <HyperNewbie> then i sub t back in[11:26:45] <HyperNewbie> ?[11:26:52] <dindinx> yeah[11:27:02] <dindinx> and the intersection point is: A-A.y/(B.y-A.y)(B-A)[11:27:24] <HyperNewbie> thanks heaps[11:27:43] <dindinx> yw[11:40:47] *** Burga has quit IRC[11:42:05] *** Chrizo has joined ##OpenGL[11:47:10] *** Burga has joined ##OpenGL[12:03:53] *** apple_ide has joined ##OpenGL[12:06:01] *** HyperNewbie has quit IRC[12:07:27] *** ajww has joined ##OpenGL[12:15:41] *** tola has joined ##OpenGL[12:17:49] *** [this] has quit IRC[12:18:06] *** Ingenu has quit IRC[12:20:14] *** tola has quit IRC[12:23:42] *** replor has quit IRC[12:25:02] *** TurboAWAY has joined ##OpenGL[12:27:20] *** MrPrise has joined ##OpenGL[12:27:28] <MrPrise> hello[12:31:07] <groton> Hello MrPrice[12:31:26] *** dvoid_ has joined ##OpenGL[12:33:28] *** avacore has joined ##OpenGL[12:37:55] *** [AD]Turbo has quit IRC[12:39:07] *** TurboAWAY is now known as [AD]Turbo[12:40:14] <MrPrise> why all the lightmap tutorials are so old?[12:42:34] <MrPrise> and there are not too many of them...[12:42:36] *** kaotrix has joined ##OpenGL[12:48:24] *** Roderic has joined ##OpenGL[12:48:25] *** Roderic is now known as Ingenu[12:59:28] *** tola has joined ##OpenGL[13:08:24] *** Jorachim has joined ##openGL[13:12:10] *** tola has quit IRC[13:22:07] *** MrPrise has quit IRC[13:28:57] *** blight_ has joined ##opengl[13:31:41] *** Walt has quit IRC[13:33:27] *** darka has joined ##opengl[13:37:56] *** Bollinger has joined ##opengl[13:40:39] *** MrPris1 has joined ##OpenGL[13:40:44] <MrPris1> re[13:44:50] *** Chrizo has quit IRC[13:45:57] *** MrPris1 is now known as MrPrise[13:52:36] *** odietsch has joined ##OpenGL[14:03:58] *** Jorachim has quit IRC[14:05:59] *** m4ggus has joined ##OpenGL[14:08:27] *** hibread has joined ##opengl[14:15:44] *** karabash has quit IRC[14:16:52] *** MrPrise has left ##OpenGL[14:20:44] *** Walt has joined ##opengl[14:22:55] *** rodietze has joined ##opengl[14:24:42] *** deniz_ has left ##OpenGL[14:31:15] *** rodietze is now known as Niteon[14:32:31] *** fargiolas has joined ##OpenGL[14:34:40] *** rnx has joined ##opengl[14:38:18] *** juanmabc has joined ##opengl[14:56:30] *** Jorachim has joined ##OpenGL[15:03:31] *** MrPris1 has joined ##OpenGL[15:03:37] <MrPris1> re[15:03:41] *** MrPris1 is now known as MrPrise[15:04:55] *** m4ggus has quit IRC[15:05:03] *** m4ggus has joined ##OpenGL[15:06:38] *** blight_ has quit IRC[15:13:31] *** blight_ has joined ##opengl[15:15:24] *** replor has joined ##OpenGL[15:16:12] *** MrPrise has left ##OpenGL[15:16:33] *** bobbens has quit IRC[15:17:56] *** amalon has joined ##opengl[15:18:08] *** bobbens has joined ##opengl[15:26:55] *** aalex has joined ##OpenGL[15:32:06] *** Suprano has quit IRC[15:32:29] *** Suprano has joined ##OpenGL[15:37:52] *** meteors has joined ##OpenGL[15:38:14] <meteors> hi all[15:38:30] <meteors> anyone know a tutorial which explains how to generate a texture proceedurally?[15:38:53] <meteors> I need to generate a texture for a spheremap, just once, at the beginning of my program.[15:39:16] <hibread> meteors: a sphere map that does what? Reflects a fake surrounding?[15:39:38] <meteors> no, although the tecnique will probably be similar[15:39:56] <hibread> so what do you want to "proceedurally" generate?[15:40:03] <meteors> I'm actually going to render a star dome[15:40:09] <meteors> this is for a scientific app[15:40:19] <hibread> star dome? hehe maybe ill be no help[15:41:12] <hibread> you mean to say you want to fake a "ceiling" to look like stars?[15:41:17] <meteors> well I could easily make the app render each star in my paint function[15:41:23] <meteors> but that would be stupid[15:41:41] <meteors> so I want to render all 3000+ stars to a texture in the beginning and be done with it.[15:42:07] <hibread> can't you just find a texture of many stars, and map that?[15:42:10] <meteors> I know how to render to a texture in Ogre, but not raw OpenGL, and I can't find a class for that.[15:42:22] <meteors> no, that would look the way I want[15:42:28] <hibread> render to texture would be done with FBOs[15:42:28] <meteors> *won't look[15:42:31] <meteors> ok[15:42:43] <meteors> that sounds like a good starting point[15:43:29] <hibread> so er... hmmm. maybe check out some tutorials on sky box creation[15:43:43] <hibread> that should go through the necessary concepts you will need to tackle[15:43:55] <meteors> I won't need a skybox for this[15:44:08] <meteors> I don't think you understand exactly what I'm doing, but that's fine :-)[15:44:14] <meteors> I'll show you when its done.[15:44:20] <hibread> what the hell is a star dome then? :p[15:44:33] <meteors> like a planetarium[15:44:42] <hibread> yeah so you want a sky "dome" ?[15:44:48] <hibread> as opposed to "box"[15:45:19] <meteors> I think i can take it from here.[15:45:20] <hibread> plane'arium? haha (southpark)[15:45:23] <meteors> Thanks for the FBO tip.[15:45:25] <hibread> no worries, enjoy[15:50:14] <quicksilver> meteors: no need to use FBOs[15:50:21] <quicksilver> meteors: you can if you want, of course, but there is no need.[15:50:48] <quicksilver> meteors: if you're just procedurally generating a texture, just generate it in a block of memory in RGBA format and then glTexImage2D[15:50:59] <quicksilver> meteors: FBOS are for when you want to use opengl itself to render the texture[15:51:12] <hibread> quicksilver: he said he wanted to render to texture[15:51:36] <quicksilver> he said he wanted to generate a texture procedurally[15:51:40] <quicksilver> not quite the same :)[15:51:52] <hibread> "<meteors> I know how to render to a texture in Ogre, but not raw OpenGL, and I can't find a class for that."[15:53:01] <hibread> but you're right if he wants to procedurally generate a texture merely with client side code[15:54:18] <meteors> Well, I oinly need to render once, in software[15:54:27] <meteors> I don't need to render the texture in hardware[15:54:43] *** LordMetroid has joined ##OpenGL[15:54:48] <hibread> then do as quicksilver said[15:55:09] <meteors> You wouldn't happen to know a snippet of code which does that, would you?[15:55:58] <hibread> what are you rendering once though? Haven't you already got your 3000 stars renderable through the normal pipeline?[15:56:33] <meteors> not yet, but I certainly could[15:57:22] <quicksilver> meteors: I don't even know which part you're asking questions about, really.[15:57:40] <quicksilver> meteors: if you understand how images are stored in memory (just as rows of pixels) then this is trivial[15:57:53] <quicksilver> if you would rather use another library to "draw" the stars onto an offscreen buffer[15:58:15] <quicksilver> then most of the toolkits have that capability[15:58:22] <quicksilver> but that's a per-toolkit question :)[15:58:30] <meteors> Ok, thanks again :-)[15:58:36] <quicksilver> openGL itself has that capability[15:58:40] <quicksilver> if that's your toolkit of choice[15:58:46] <quicksilver> either using FBOs as hibread originally said[15:58:53] <quicksilver> or just using glCopyTexImage2D[15:58:56] <quicksilver> oldskool[16:05:19] *** korff has quit IRC[16:05:29] *** apple_ide has quit IRC[16:05:35] *** lordmetroid_ has joined ##OpenGL[16:12:03] *** lordmetroid_ has quit IRC[16:13:19] *** aalex has quit IRC[16:17:42] *** Yustme has joined ##opengl[16:22:12] *** LordMetroid has quit IRC[16:27:04] *** amz has joined ##opengl[16:34:49] *** charlie5 is now known as charlie_zzz[16:43:46] *** aalex has joined ##OpenGL[16:47:56] *** BahamutZERO has quit IRC[16:51:50] *** bolides has joined ##OpenGL[16:51:56] *** Jorachim has quit IRC[16:52:54] *** Jorachim has joined ##OpenGL[17:04:19] *** Ingenu has quit IRC[17:11:37] *** amz has quit IRC[17:12:26] *** Muzzle has joined ##OpenGL[17:13:29] *** BahamutZERO has joined ##OpenGL[17:14:46] *** prophile has joined ##opengl[17:19:06] <Muzzle> yo[17:30:14] *** TheLorax has joined ##opengl[17:32:29] *** Lucine is now known as Lucine_AFK[17:32:55] *** LtJax has joined ##OpenGL[17:35:48] *** gaffa has joined ##opengl[17:37:18] *** bolides has quit IRC[17:48:58] *** karabash has joined ##OpenGL[17:53:39] *** [AD]Turbo is now known as TurboAWAY[18:03:05] *** juanmabc has quit IRC[18:07:07] *** bbeausej has joined ##OpenGL[18:08:02] *** gusano has joined ##OpenGL[18:10:16] *** LtJax has quit IRC[18:10:53] *** Castigador has quit IRC[18:19:13] <Muzzle> How do I draw an elipsoid in opengl?[18:19:32] <Muzzle> spheres are easy, but I don't know elipsoids[18:20:19] <quicksilver> call glScale and draw a sphere?[18:20:34] <Muzzle> ahh[18:20:39] <Muzzle> nice[18:20:41] <Muzzle> thanks :D[18:22:23] *** brutopia has quit IRC[18:28:11] *** aalex has quit IRC[18:29:31] *** aalex has joined ##OpenGL[18:33:08] *** DMINATOR has joined ##OpenGL[18:41:15] *** odietsch has quit IRC[18:45:42] *** stringfellow has joined ##opengl[18:53:36] *** Jorachim has quit IRC[18:56:38] *** smiler has joined ##OpenGL[18:57:25] <smiler> Ive just tried to port some stuff to windows (vista, using vs.net 2008) and I wonder how I get access to glGenBuffers() and friends.[18:58:54] <smiler> I can include glext.h and define GL_GLEXT_PROTOTYPES but then I get error in linking[19:01:18] *** neoneye has quit IRC[19:02:56] <HuntsMan> dynamically getting extension function pointers[19:03:05] <HuntsMan> using wglGetProcAddress[19:03:06] *** _boto has joined ##opengl[19:03:14] <HuntsMan> a wrapper such as glew do this automatically for you[19:03:28] *** karabash has quit IRC[19:03:58] <smiler> I tried glew, but it ended up crashing on me.. I think it doesnt like the 64bit version of vista or something[19:04:12] <hibread> glee is another[19:04:47] <hibread> but glGenBuffers.. that shouldn't require extensions should it? Thats been promoted to core hasn't it?[19:04:55] <HuntsMan> yep[19:05:06] <HuntsMan> it's core from 1.5 and beyond[19:06:15] *** NeoThermic_II has joined ##OpenGL[19:06:32] *** NeoThermic has quit IRC[19:06:33] *** NeoThermic_II is now known as NeoThermic[19:06:47] *** groton has quit IRC[19:12:24] * smiler shrugs[19:12:32] *** dolphin has joined ##OpenGL[19:13:55] *** joakim_ has joined ##OpenGL[19:15:44] *** brutopia has joined ##opengl[19:15:53] *** NeoServer has quit IRC[19:17:07] *** NeoServer has joined ##OpenGL[19:24:07] *** NeoThermic_II has joined ##OpenGL[19:25:43] *** hibread has quit IRC[19:30:10] *** joakim__ has quit IRC[19:32:53] *** Xmas| has joined ##OpenGL[19:33:13] *** LordMetroid has joined ##OpenGL[19:34:10] *** NeoThermic has quit IRC[19:34:27] *** NeoThermic has joined ##OpenGL[19:35:43] *** m4ggus has quit IRC[19:36:45] *** NeoServer has quit IRC[19:37:52] *** m4ggus has joined ##opengl[19:41:09] *** mm^away is now known as mm765[19:41:46] *** NeoThermic has quit IRC[19:41:47] *** NeoThermic_II is now known as NeoThermic[19:42:01] *** NeoServer has joined ##OpenGL[19:42:36] *** karabash has joined ##OpenGL[19:43:02] *** XORAND has joined ##OpenGL[19:44:54] <XORAND> Hi all. I'm trying to compile this program http://rafb.net/p/97HkhT57.html on fedora 8 linux but it doesn't recognize my header. How to correct this please?[19:45:22] <Xmas|> error message?[19:45:35] <adampetrone> you need to include glut.h too[19:45:37] <XORAND> included below the code[19:45:40] <Jupp3> What you mean with "doesn't recognize your header"?[19:45:41] <XORAND> oic[19:46:02] <Xmas|> yes, those are glut functions, not gl functions[19:46:52] <adampetrone> oh and be sure to link with glut too[19:51:34] <XORAND> error: glut.h: No such file or directory. i compiled like so: g++ /home/Rick/C++/openg/test.cpp[19:52:56] <rnx> make sure you have glut and the glut devel package installed[19:53:13] <rnx> freeglut to be precise[19:53:33] <XORAND> mk[19:56:30] *** Azzkikr_ has joined ##OpenGL[19:56:55] *** XzN`L3g3ndZ has quit IRC[19:57:22] *** Jorachim has joined ##OpenGL[19:57:40] *** bbeausej_ has joined ##OpenGL[19:58:13] *** mattn2|home has joined ##OpenGL[19:58:18] <XORAND> Package freeglut - 2.4.0-11.fc8.i386 is already installed.[19:58:26] *** fargiolas_ has joined ##OpenGL[19:59:44] <rnx> and ...[20:00:43] <rnx> you also need the devel package if you want to compile against freeglut[20:05:18] <XORAND> rnx: i installed freeglut-devel, what header do i use?[20:05:32] *** juanmabc has joined ##opengl[20:05:48] <rnx> glut.h[20:06:03] *** Lekane has quit IRC[20:06:13] <rnx> #include <GL/glut.h>[20:06:19] <XORAND> then I get error: glut.h: No such file or directory again :([20:07:03] <XORAND> ah hang on, different type of error now[20:07:34] *** Azzkikr has quit IRC[20:07:41] *** bbeausej has quit IRC[20:08:14] <XORAND> http://rafb.net/p/gfSgXe19.html[20:09:36] <HuntsMan> you didn't link to glut or even GL[20:11:36] <XORAND> ahhh :)[20:11:38] <XORAND> g++ -lglut -GL /home/Rick/C++/opengl/test.cpp[20:11:39] <XORAND> g++: unrecognized option '-GL'[20:11:40] <XORAND> Compilation finished at Tue May 6 20:10:48[20:13:05] <XORAND> woohoo! Thanks guys, for the help![20:14:21] *** dolphin has quit IRC[20:15:15] *** fargiolas has quit IRC[20:16:32] <XORAND> What does this error mean? I got it when i ran my file:[20:16:35] <XORAND> freeglut (/home/Rick/C++/opengl/a.out): Unable to create direct context rendering for window 'Triangles'[20:16:36] <XORAND> This may hurt performance.[20:17:02] <XORAND> How do I let it create a direct context?[20:17:38] <quicksilver> maybe your card doesn't have 3D hardware[20:17:43] <quicksilver> or mayb you don't have drivers for it[20:17:51] <quicksilver> or maybe they're not correctly set up[20:18:00] <HuntsMan> lots of maybe's :[20:18:00] <HuntsMan> :)[20:18:37] <XORAND> ah i see. Yeah, i'm using an old laptop with SiS graphics[20:18:41] <HuntsMan> lol[20:19:40] <XORAND> What do i type to rename the output file to anything else but a.out?[20:19:54] <HuntsMan> mv a.out whatever[20:20:02] <HuntsMan> or -o whatever to gcc[20:20:23] <XORAND> I see. Thanks again :)[20:20:35] <Madsy> Real men does the linking step themselves.[20:20:38] <Madsy> do*[20:23:14] *** doogers has joined ##OpenGL[20:23:20] <doogers> Hi[20:27:35] <doogers> I want make a simple program that when I run it in FULL SCREEN many rectangles with inside images appear and when I click with the mouse on one of those, I get a zoom effect... How can I do? I'm Italian XD[20:29:29] <rnx> post a testcase[20:31:06] <doogers> rnx what?[20:31:38] *** Lekane has joined ##OpenGL[20:32:54] <bobbens> Madsy: real men don't link, they write the functionality themselves[20:33:05] *** xonev_ has quit IRC[20:33:37] <Madsy> bobbens: Writing your own linker, or doing the relocation and resolving of labels yourself? :-)[20:33:45] <Madsy> I'm writing a linker atm.[20:34:11] <rnx> post a minimal failing example of your code to a pastebin site (see topic)[20:34:54] <Madsy> rnx: He asked for suggestions, not aid with failing code[20:34:55] <doogers> rnx, I didn't program... I'm asking How to do...[20:35:01] *** joakim__ has joined ##OpenGL[20:35:13] <bobbens> Madsy: say you want SDL, instead of linking to SDL you make your own implementation, say you want libc? instead of linking to libc you write your own[20:35:20] <doogers> Madsy, exact[20:35:23] <bobbens> so you'll end up rewriting your entire os just to support your app :)[20:35:34] <Madsy> doogers: That's not what I said.[20:35:56] <bobbens> doogers: you get the red book and read on transformation matrix[20:35:59] <Madsy> With your example you would still have to run ld in order to generate the ELF or PE header.[20:36:11] <Madsy> s/doogers/bobbens[20:36:29] <doogers> whhat? bobbens?[20:36:40] <rnx> oh i see[20:36:46] <bobbens> meh, it's no fun if you write your own linker :([20:36:47] <Madsy> Your nicks seems very similar to me.[20:36:50] <DMINATOR> lol clones[20:37:01] <bobbens> ummm not similar at all :([20:37:10] <Madsy> bobbens: You can do a lot if you know the syscall numbers.[20:37:36] <Madsy> Then your file won't have any external dependancies at all[20:37:47] *** amalon has quit IRC[20:38:02] <doogers> Is there openGL tutorial in italian?[20:38:31] <Madsy> doogers: Not that I know of. Most manuals expects you to know english.[20:38:34] *** XORAND has left ##OpenGL[20:39:52] <bobbens> if red book is translated to italian, buy that[20:42:59] *** scy has joined ##opengl[20:48:40] *** joakim_ has quit IRC[20:54:49] *** Suprano has quit IRC[20:55:32] *** Suprano has joined ##OpenGL[20:59:57] *** speedy1 has joined ##OpenGL[21:00:41] *** Xmas| has quit IRC[21:06:20] *** doogers has quit IRC[21:06:27] *** stringfellow_ has joined ##opengl[21:07:51] *** karabash has quit IRC[21:17:03] *** XzN`L3g3ndZ has joined ##OpenGL[21:19:17] *** neoneurone has joined ##OpenGL[21:19:33] *** stringfellow has quit IRC[21:29:17] *** stringfellow has joined ##opengl[21:31:59] *** Jup4 has joined ##OpenGL[21:32:33] *** Jupp3 has quit IRC[21:32:39] *** Jup4 is now known as Jupp3[21:33:05] *** DobosCake has joined ##OpenGL[21:34:01] *** TheLorax has quit IRC[21:42:24] *** roknir has joined ##OpenGL[21:42:57] *** mm765 is now known as mm765^away[21:44:45] *** reviver has joined ##OpenGL[21:49:29] *** reviver has quit IRC[21:52:28] *** karabash has joined ##OpenGL[22:02:39] *** stringfellow_ has joined ##opengl[22:03:48] *** TheLorax has joined ##opengl[22:04:03] *** stringfellow_ has quit IRC[22:07:27] *** devurandom has joined ##OpenGL[22:07:31] <devurandom> Hi![22:08:43] <devurandom> Can someone point me to a tutorial about decals? I am unable to find something on i.e. nehe or delphigl, or google... :([22:10:40] *** beyond3d has joined ##OpenGL[22:10:49] *** beyond3d is now known as zero_k[22:11:07] <zero_k> 720 x 480 = 480p?[22:11:49] <devurandom> delphigl says how simple one-quad decals are done, but only gives a very vague hint on "wrapping" decals.[22:15:01] <devurandom> Or maybe "decal" is the wrong term?[22:15:59] <devurandom> I mean something like burn effects on walls, or territorial-zones mapped onto a 3d map, etc.[22:16:28] *** zero_k has quit IRC[22:18:31] *** stringfellow has quit IRC[22:19:04] <quicksilver> devurandom: burn effects on walls are just an extra texture normally[22:19:12] <quicksilver> devurandom: is that what you want?[22:19:32] <Madsy> Well, your best bet it to just draw an extra quad on top.[22:19:41] <Madsy> And use alpha blending or color masking.[22:19:59] <devurandom> I read that they can be done simply tracing a ray towards the wall, and adding another quad (with the burn texture) on the intersection.[22:20:36] <devurandom> But if the burn effect is just in the corner of a wall, it would have to wrap around it, onto another one.[22:21:10] <devurandom> Or if I have the zones on my terrain, which is not flat. Then I need something more advanced than a simple quad.[22:21:31] <devurandom> And I am currently unsure how this should be done. Initial idea: Trace more rays.[22:21:37] <devurandom> But perhaps there is a better solution.[22:24:25] *** joakim_ has joined ##OpenGL[22:24:40] <rnx> i guess it's similar to a flashlight ... texture projection[22:25:39] *** Yustme has quit IRC[22:26:27] <devurandom> Do you have some material on that?[22:28:48] <devurandom> And that is simpler or faster than the quads?[22:29:55] <rnx> quite the contrary[22:30:54] *** dispraekailo has joined ##OpenGL[22:31:41] <rnx> but it might solve the corner cases[22:32:04] <devurandom> "corner case" as in "decals over corners of walls"?[22:32:13] <rnx> not sure how a bullet decal on a wall corner really looks or should look[22:32:53] <rnx> yes[22:33:18] <devurandom> Well, as I dont need it for bullets, that's not an issue to me. ;)[22:34:53] <rnx> dont seem to have a specific link here ... should be easy to find though[22:34:53] *** Suprano has quit IRC[22:35:18] *** Suprano has joined ##OpenGL[22:36:00] <devurandom> Found http://www.ozone3d.net/tutorials/glsl_texturing_p08.php and http://www.opengl.org/resources/code/samples/mjktips/projtex/index.html[22:36:08] <devurandom> Hope that will contain something useful.[22:36:25] <devurandom> (will look later, someone presses me to play a game. ;) )[22:38:28] <Jupp3> must... resist...[22:39:34] *** TurboAWAY has quit IRC[22:39:54] <devurandom> Also found http://cmiss.bioeng.auckland.ac.nz/development/examples/a/project_texture/index.html but dont even know what language that is...[22:41:10] *** joakim__ has quit IRC[22:42:51] *** fargiolas_ has quit IRC[22:43:38] *** magnet_ has quit IRC[22:44:07] *** magnet_ has joined ##OpenGL[22:44:27] *** magnet_ has quit IRC[22:45:22] *** magnet_ has joined ##OpenGL[22:47:31] *** Lemml has joined ##OpenGL[22:49:41] *** bbeausej_ is now known as bbeausej[23:00:01] *** roknir has quit IRC[23:05:00] *** rutski has quit IRC[23:05:25] *** m4ggus has quit IRC[23:15:54] *** bbeausej_ has joined ##OpenGL[23:15:56] *** bbeausej has quit IRC[23:17:29] *** LiQuiDninja has joined ##OpenGL[23:29:47] *** m4ggus has joined ##opengl[23:33:44] *** Lemml has quit IRC[23:34:04] *** gaffa has quit IRC[23:41:56] *** bbeausej_ is now known as bbeausej[23:42:03] *** Jup4 has joined ##OpenGL[23:42:03] *** Jupp3 has quit IRC[23:42:03] *** Jup4 is now known as Jupp3[23:43:14] *** scy has left ##opengl[23:46:08] *** blbmp has joined ##OpenGL[23:48:56] *** Muzzle has quit IRC[23:57:06] *** Xmas| has joined ##OpenGL[23:59:20] *** Bollinger has quit IRC