March 14, 2019 
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<slime73!~slime73@24.215.81.93> has quit IRC (Quit: This computer has gone to sleep)[12:34:03] *** GreyHound <GreyHound!~GreyHound@120.85.205.19> has quit IRC (Ping timeout: 252 seconds)[12:43:27] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[12:49:02] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[12:50:03] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has quit IRC (Ping timeout: 252 seconds)[12:57:46] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has joined ##OpenGL[12:58:05] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has quit IRC (Ping timeout: 244 seconds)[12:58:37] *** GreyHound <GreyHound!~GreyHound@112.97.49.36> has joined ##OpenGL[13:49:47] *** d3x0r <d3x0r!~d3x0r@ip174-72-226-164.lv.lv.cox.net> has joined ##OpenGL[13:54:30] *** Serus2 <Serus2!9165c725@gateway/web/freenode/ip.145.101.199.37> has joined ##OpenGL[13:54:52] <Serus2> Hello[13:57:09] <Stragus> Greetings carbon-based mammal[13:57:28] <Serus2> I'm having trouble getting anything to render using opengl es 2 on a raspberry pi[13:58:02] <Serus2> I'm using SSH X11 forwarding, and apitrace doesn't like that[13:58:16] <Serus2> Is there a different debugger that I can use?[13:58:17] <Stragus> Does glClear() work? Does a triangle draw without any vertex attributes or uniforms, just hard-coding the 3 vertices based on gl_VertexID?[13:58:29] <Stragus> drawn*[13:58:43] <Serus2> glClear does seem to work[13:58:54] * Serus2 changes the clear color to be absolutely sure[13:59:52] <Serus2> ok nvm[13:59:57] <Serus2> glClear does not work[14:00:46] <Serus2> I get a black screen either way[14:00:46] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Ping timeout: 255 seconds)[14:00:46] <Stragus> Sounds like serious GL context trouble[14:00:54] <Stragus> Check for errors all the way[14:01:19] <Serus2> I've plastered glGetError through the entire codebase[14:01:27] <Serus2> I always get 0 back[14:01:43] <Stragus> You probably don't even have a valid GL context, the problem is earlier than that[14:01:48] <Serus2> And is 0 a valid buffer index?[14:01:58] *** cantstanya <cantstanya!~chatting@gateway/tor-sasl/cantstanya> has quit IRC (Remote host closed the connection)[14:02:09] <Stragus> If glClear() does not work and you don't have a context, no gl* calls will work[14:02:25] <Serus2> Yes, that makes sense[14:02:31] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has joined ##OpenGL[14:02:34] <Serus2> but is 0 a valid buffer?[14:02:39] <Serus2> from glGenBuffers[14:02:45] <Stragus> No it's not[14:02:58] <Stragus> Again, all your gl calls do nothing without a context[14:03:15] *** cantstanya <cantstanya!~chatting@gateway/tor-sasl/cantstanya> has joined ##OpenGL[14:03:20] <Serus2> hmmm[14:03:28] <Serus2> glfw window creation succeeds[14:03:37] <Serus2> and I call glfwMakeContextCurrent beforehand[14:03:53] <Serus2> before calling anyting gl related, I mean[14:04:02] <Stragus> Can you run a tiny code base that only does glClear() after successfully creating the GLFW window?[14:04:25] <Stragus> GLFW is pretty robust on error checking...[14:04:38] <Serus2> I should have a small test somewhere[14:06:34] <Serus2> oh I threw it aways[14:06:39] <Serus2> away*[14:08:01] <Stragus> Create window, while(1) { glClearColor(), glClear, glfwSwapBuffers(( }[14:09:37] *** charlie5 <charlie5!~rod@pa49-181-232-168.pa.nsw.optusnet.com.au> has quit IRC (Ping timeout: 252 seconds)[14:13:21] <Stragus> If that test works, it's possible your code was running fine earlier, and the glClear() was just clearing some framebuffer object instead of the default framebuffer[14:15:18] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has joined ##OpenGL[14:25:51] *** charlie5 <charlie5!~rod@pa49-181-232-168.pa.nsw.optusnet.com.au> has joined ##OpenGL[14:26:43] <Serus2> https://gist.github.com/DragoonX6/8864c95b7bdf66c4e4e454a710928149[14:26:49] <Serus2> I would expect a red screen here[14:27:30] <Stragus> Is window non-zero?[14:28:06] *** Foaly <Foaly!~Foaly@ppp-88-217-49-219.dynamic.mnet-online.de> has joined ##OpenGL[14:28:09] <Serus2> yes, because I get to see a window created[14:28:16] <Serus2> but I'll add an assert to be sure[14:29:14] <Serus2> ok it is[14:29:16] *** stefkos <stefkos!~Pawel@79.184.200.90.ipv4.supernova.orange.pl> has quit IRC (Quit: Going offline, see ya! (www.adiirc.com))[14:29:18] <Serus2> 100% sure now[14:30:02] <Stragus> That is unexpected. Maybe you could ask in #glfw, see if dreda is around, I'm not sure it's a GL problem at this point[14:32:09] <Serus2> :/[14:32:27] <Serus2> I tried setting the window size and using glViewPort, but that made no different[14:32:35] <Serus2> I thought my tiling wm was at fault here[14:32:49] <Stragus> Does other software using GL works?[14:33:00] <Serus2> Well, yes, but no[14:33:11] <Serus2> It stopped working after I upgrade my linux kernel a while ago[14:33:21] <Serus2> Can't do glxgears anymore[14:33:26] <Serus2> I used to be able to do it[14:33:53] <Serus2> # pi @ raspberrypi3 in ~ [4:35:28][14:33:53] <Stragus> Oh. If glxgears doesn't work, that seems like a bad installation[14:33:58] <Serus2> $ glxgears[14:34:00] <Serus2> Error: couldn't get an RGB, Double-buffered visual[14:34:07] <Stragus> But at least it produces an error[14:34:41] <Serus2> Well, it stopped working after I upgraded my linux install[14:34:46] <Stragus> I never touched a Pi, but maybe you should update/reinstall all GL drivers related packages[14:34:47] <Serus2> the pi is untouched in that regard[14:35:10] <Serus2> It happens to me both on arch linux and on my gentoo install[14:35:19] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[14:35:20] <Stragus> What's your hardware?[14:35:25] *** wedr <wedr!32ffae32@gateway/web/freenode/ip.50.255.174.50> has joined ##OpenGL[14:35:36] <Serus2> This laptop has an i7-8750H with a GTX1070[14:35:47] <Serus2> i7-8700K with a GTX1080 on my desktop[14:35:55] <wedr> Hello, asking to see if the Youtube series, Handmade Hero, is already using OpenGL?[14:36:15] <Serus2> wedr: ask Casey on his streams (the answer is yes btw)[14:36:23] <Stragus> Cool. Make sure the source for the kernel you are currently running is in /usr/src/linux, then run the binary NVIDIA linux driver installer[14:36:42] <wedr> Serus2: Ok, that's all I wanted to know.[14:36:42] <Serus2> my drivers work[14:36:59] <wedr> Serus2: I can't ask on stream, because when he's livestreaming, I'm sleeping[14:40:13] <Serus2> Stragus: https://media.discordapp.net/attachments/483737902505918464/555746905011781633/00000.png[14:41:01] <Serus2> server glx vendor string: NVIDIA Corporation[14:41:02] <Stragus> So a game works but not glxgears?[14:41:04] <Serus2> From glxinfo[14:41:15] <Serus2> glxgears doesn't work over SSH[14:41:32] <Serus2> I SSH into my pi with SSH -X pi@raspberrypi3[14:41:38] <Serus2> And then run glxgears[14:41:57] <Stragus> Ah right, that's different[14:42:06] *** davr0s <davr0s!~textual@host109-150-28-226.range109-150.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[14:42:22] <Serus2> and if I use ssh -Y it fails with it being unable to load swrast[14:42:30] <karalaine> is that even supported scenario? like does that work from normal linux distro to another?[14:42:36] <Serus2> libGL error: No matching fbConfigs or visuals found libGL error: failed to load driver: swrast[14:42:59] <Serus2> karalaine: it does, I used it often in past[14:43:34] <Serus2> I can't SSH from out of the school net from here, but I can SSH in my server later and show you it works[14:43:54] <karalaine> I believe you, just curious[14:44:04] <Serus2> if I try the glfw test via SSH -Y it fails to load EGL[14:44:11] <Serus2> libEGL warning: DRI2: failed to authenticate[14:46:03] <karalaine> have you checked this: https://pi3d.github.io/html/FAQ.html#glx-dri2-not-supported-or-failed-to-authenticate[14:49:02] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has quit IRC (Ping timeout: 250 seconds)[14:53:10] <Serus2> yeah, I just found that[15:00:45] <Serus2> ok the error changed now[15:00:50] <Serus2> now it can't create a window[15:00:59] <Serus2> EGL: Failed to get EGL display: Success[15:02:14] <Serus2> https://raspberrypi.stackexchange.com/questions/28513/egl-and-opengl-es-forwarding-via-ssh oh[15:03:12] <Stragus> Oh eh, that explains it[15:05:44] <Serus2> This makes my life substantially worse[15:07:11] *** karab44 <karab44!~karab44@unaffiliated/karab44> has joined ##OpenGL[15:08:22] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Ping timeout: 245 seconds)[15:11:39] *** Foaly <Foaly!~Foaly@ppp-88-217-49-219.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[15:12:33] *** jfpoole <jfpoole!~textual@72.143.113.107> has joined ##OpenGL[15:18:32] *** raaf <raaf!~raaf@ip51ce60a8.speed.planet.nl> has joined ##OpenGL[15:24:09] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[15:30:12] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Ping timeout: 250 seconds)[15:54:51] *** Matthijs <Matthijs!~quassel@unaffiliated/matthijs> has quit IRC (Ping timeout: 252 seconds)[15:54:59] *** MatthijsH <MatthijsH!~quassel@unaffiliated/matthijs> has joined ##OpenGL[15:56:12] *** MatthijsH is now known as Matthijs[16:00:02] *** quadsar <quadsar!~quadsar@unaffiliated/quadsar> has quit IRC (Ping timeout: 245 seconds)[16:05:43] *** quadsar <quadsar!~quadsar@unaffiliated/quadsar> has joined ##OpenGL[16:09:06] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has quit IRC (Quit: Leaving)[16:14:20] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[16:29:07] *** ville <ville!~ville@212-149-214-47.bb.dnainternet.fi> has quit IRC (Ping timeout: 240 seconds)[16:34:59] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has joined ##OpenGL[16:44:48] *** Danol <Danol!~Danol@ip-94-112-108-12.net.upcbroadband.cz> has joined ##OpenGL[16:45:17] <Danol> Yo. Is it possible that uv coordinates with MSAA go "outside" the specified triangle bounds?[16:46:40] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Ping timeout: 268 seconds)[16:53:19] *** Foaly <Foaly!~Foaly@ppp-88-217-51-77.dynamic.mnet-online.de> has joined ##OpenGL[16:55:03] *** groton <groton!~groton@unaffiliated/groton> has joined ##OpenGL[16:58:09] *** Foaly <Foaly!~Foaly@ppp-88-217-51-77.dynamic.mnet-online.de> has quit IRC (Ping timeout: 246 seconds)[16:59:08] *** a_trox <a_trox!~a_trox@m3.unl.edu> has quit IRC (Quit: Lost terminal)[16:59:09] *** grouse <grouse!~grouse@83-233-9-2.cust.bredband2.com> has joined ##OpenGL[16:59:41] *** Foaly <Foaly!~Foaly@ppp-88-217-51-77.dynamic.mnet-online.de> has joined ##OpenGL[17:09:42] *** Yaniel <Yaniel!yaniel@unaffiliated/yaniel> has quit IRC (Ping timeout: 246 seconds)[17:11:49] *** Yaniel <Yaniel!yaniel@unaffiliated/yaniel> has joined ##OpenGL[17:16:56] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[17:24:52] *** realz <realz!~realz@unaffiliated/realazthat> has joined ##OpenGL[17:31:19] *** nitroxis <nitroxis!n@nxs.re> has quit IRC (Quit: nitroxis)[17:34:08] *** nitroxis <nitroxis!n@nxs.re> has joined ##OpenGL[17:36:45] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Remote host closed the connection)[17:44:23] *** hellozee <hellozee!~hellozee@116.73.34.190> has joined ##OpenGL[17:44:37] *** raaf <raaf!~raaf@ip51ce60a8.speed.planet.nl> has quit IRC (Ping timeout: 245 seconds)[17:56:28] *** davr0s <davr0s!~textual@host109-150-28-226.range109-150.btcentralplus.com> has joined ##OpenGL[17:56:42] *** krystcich <krystcich!~krystcich@088156132126.dynamic-ww-04.vectranet.pl> has joined ##OpenGL[17:59:37] *** Matthijs <Matthijs!~quassel@unaffiliated/matthijs> has quit IRC (Quit: *waves frantically*)[18:00:11] *** Serus2 <Serus2!9165c725@gateway/web/freenode/ip.145.101.199.37> has quit IRC ()[18:17:37] *** d3x0r <d3x0r!~d3x0r@ip174-72-226-164.lv.lv.cox.net> has quit IRC (Read error: Connection reset by peer)[18:22:49] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has quit IRC (Ping timeout: 272 seconds)[18:27:58] *** snyp <snyp!~Snyp@1.39.174.192> has joined ##OpenGL[18:31:07] *** ratchetfreak <ratchetfreak!c351a8d8@gateway/web/freenode/ip.195.81.168.216> has quit IRC (Ping timeout: 256 seconds)[18:32:38] *** grouse <grouse!~grouse@83-233-9-2.cust.bredband2.com> has quit IRC (Quit: Leaving)[18:50:50] *** davr0s <davr0s!~textual@host109-150-28-226.range109-150.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[18:54:17] *** Foaly <Foaly!~Foaly@ppp-88-217-51-77.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[19:00:41] *** notadeveloper <notadeveloper!~textual@unaffiliated/notadeveloper> has joined ##OpenGL[19:05:36] *** karab44 <karab44!~karab44@unaffiliated/karab44> has quit IRC ()[19:17:40] *** Foaly <Foaly!~Foaly@ppp-88-217-51-77.dynamic.mnet-online.de> has joined ##OpenGL[19:25:30] *** snyp <snyp!~Snyp@1.39.174.192> has quit IRC (Ping timeout: 250 seconds)[19:25:50] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has joined ##OpenGL[19:29:02] *** snyp <snyp!~Snyp@1.39.174.192> has joined ##OpenGL[19:30:34] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has quit IRC (Ping timeout: 272 seconds)[19:30:57] *** cnu- <cnu-!~u@s8635.suka.se> has quit IRC (Ping timeout: 252 seconds)[19:37:14] *** davr0s <davr0s!~textual@host109-150-28-226.range109-150.btcentralplus.com> has joined ##OpenGL[19:41:34] *** englosh <englosh!1f12ff15@gateway/web/freenode/ip.31.18.255.21> has joined ##OpenGL[19:41:51] <englosh> Hello. Are these the correct vertices to draw a rectangle? x, y, width, y, x, height, width, height[19:42:04] <englosh> with x, y and width, height[19:43:25] <zy]x[yz> you probably want x+width and y+height, right?[19:44:16] *** cnu- <cnu-!~u@s8635.suka.se> has joined ##OpenGL[19:45:21] <englosh> hmmmm maybe. so x+width, y, width, y+height, x, height, width, height, ?[19:45:33] <englosh> every single one of these is one vertex[19:45:50] <Yaniel> depends on your transform[19:45:56] <zy]x[yz> x, y, x+width, y x, y+height, x+width, y+height[19:46:16] <Yaniel> but that one is what i'd do[19:46:27] <Yaniel> because actually I'd swap the last two[19:47:10] <Yaniel> (but I'd use a triangle fan instead of a strip)[19:47:14] <zy]x[yz> if --oh[19:47:38] <zy]x[yz> why? just preference, or is there an objective reason to prefer fan when you can?[19:47:43] <Yaniel> preference[19:47:54] <Yaniel> I'm not sure what makes you think that width or height alone would make sense as either coordinate[19:54:27] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Remote host closed the connection)[19:55:22] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[19:55:53] *** thomas_25 <thomas_25!~thomas_25@unaffiliated/thomas-25/x-0068438> has joined ##OpenGL[19:58:30] *** thomas_2_ <thomas_2_!~thomas_25@unaffiliated/thomas-25/x-0068438> has joined ##OpenGL[19:59:44] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Ping timeout: 250 seconds)[20:00:16] *** thomas_25 <thomas_25!~thomas_25@unaffiliated/thomas-25/x-0068438> has quit IRC (Ping timeout: 246 seconds)[20:02:28] *** d3x0r <d3x0r!~d3x0r@ip174-72-226-164.lv.lv.cox.net> has joined ##OpenGL[20:08:05] *** hellozee <hellozee!~hellozee@116.73.34.190> has quit IRC (Remote host closed the connection)[20:13:53] *** notadeveloper <notadeveloper!~textual@unaffiliated/notadeveloper> has quit IRC (Quit: My Mac Pro has gone to sleep. 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ZZZzzz…)[20:39:18] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Remote host closed the connection)[20:43:28] *** immibis <immibis!~immibis@125-238-72-168-fibre.sparkbb.co.nz> has joined ##OpenGL[20:51:19] *** random_yanek <random_yanek!~random_ya@87.116.231.245> has quit IRC (Read error: Connection reset by peer)[21:00:47] *** immibis <immibis!~immibis@125-238-72-168-fibre.sparkbb.co.nz> has quit IRC (Ping timeout: 240 seconds)[21:06:34] *** random_yanek <random_yanek!~random_ya@87.116.237.230> has joined ##OpenGL[21:15:35] *** glYoda <glYoda!~MTLYoda@c-73-25-27-206.hsd1.or.comcast.net> has quit IRC (Quit: glYoda)[21:22:45] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has quit IRC (Read error: Connection reset by peer)[21:24:52] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has joined ##OpenGL[21:25:05] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has joined ##OpenGL[21:29:02] *** slime73 <slime73!~slime73@24.215.81.93> has joined ##OpenGL[21:54:05] *** ville <ville!~ville@212-149-214-47.bb.dnainternet.fi> has joined ##OpenGL[21:54:09] <Serus> Stragus: what's even worse is that raspi DRM is not your regular DRM[21:54:25] <Serus> It uses an entirely different API to setup DRM rendering[21:54:41] <Serus> So you can't even use a generic abstraction for it[21:57:17] <derhass> Serus: I still don't understand why _indirect_ rendering shouldn't work[21:57:53] <derhass> glxgears shouldn't use egl in the first place[21:58:07] <Serus> it doesn't[21:58:15] <Serus> oh, let me test that on my server now[21:59:30] *** thomas_25 <thomas_25!~thomas_25@unaffiliated/thomas-25/x-0068438> has quit IRC (Ping timeout: 246 seconds)[22:00:00] <derhass> englosh: if what you want is a rectangle filling the complete viewport, I'd recommend using a single triangle[22:03:20] <englosh> derhass: the complete screen you mean? wouldn't it be better to just change the background color then?[22:03:37] <derhass> not if you want to do some work in the fragment shader[22:04:41] <Yaniel> if you want a single color as your bg then sure, clearing is the best way[22:05:24] *** snyp <snyp!~Snyp@1.39.174.192> has quit IRC (Quit: WeeChat 2.4)[22:11:03] *** unreal <unreal!~unreal@unaffiliated/unreal> has quit IRC (Ping timeout: 252 seconds)[22:12:59] *** unreal <unreal!~unreal@unaffiliated/unreal> has joined ##OpenGL[22:24:49] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[22:25:10] <Stragus> OpenGL draws triangles, triangles have 3 vertices[22:25:23] <Stragus> You could reuse the same vertices, with indices, though[22:26:56] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Remote host closed the connection)[22:27:33] <englosh> hmmmmmm wait do you mean it does this? https://i.imgur.com/kjlI3Zg.png it draws two triangles and that's the rectangle?[22:30:02] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[22:30:07] <Stragus> Yup[22:30:18] *** davr0s <davr0s!~textual@host109-150-28-226.range109-150.btcentralplus.com> has joined ##OpenGL[22:30:53] <englosh> ohhhhh.... but why? Why doesn't it simply do it like I thought? Wouldn't that be much more efficient?[22:31:33] <Stragus> Because the hardware works with triangles. Legacy OpenGL used to have quads, and drivers had to break them down into triangles[22:32:07] <englosh> ah so there's no way to change that to something like I thought. I need to work with triangles. Well then I will get used to that. Thanks[22:32:34] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Client Quit)[22:32:44] <Stragus> If you look at the first argument of your glDrawArrays call, that should be a bit hint of the kind of geometry[22:33:01] <Stragus> (or any other glDraw*() variant)[22:35:23] *** AfroThundr|main <AfroThundr|main!~AfroThund@countervandalism/AfroThundr3007730> has joined ##OpenGL[22:38:04] <englosh> ah and so this stuff with only 4 vertices is legacy glVertex2f(x1,y1); glVertex2f(x2,y1); glVertex2f(x2,y2); glVertex2f(x1,y2);[22:38:30] <Yaniel> yes[22:41:22] *** hnsz <hnsz!~hnsz@s5594260d.adsl.online.nl> has quit IRC (Ping timeout: 250 seconds)[22:43:34] *** Foaly <Foaly!~Foaly@ppp-88-217-51-77.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[22:51:22] <Serus> welp, now I'm in a whole adventure of upgrading my server and restoring zpools[22:53:48] <englosh> Stragus: "You could reuse the same vertices, with indices, though" would that be faster/more efficient? Or is there not really a difference?[22:54:51] <Yaniel> for a single quad there's no big difference[22:55:13] <Stragus> englosh: It is faster when you have millions of vertices[22:55:17] <Yaniel> you could even draw it without any vertex attributes at all[22:55:29] <Yaniel> and just harcode the positions for each vertex in your vertex shader[22:55:44] <Yaniel> and yes that's something people actually do[22:55:53] <derhass> I do that a lot[22:55:54] <Stragus> For a full-screen shader, sure[22:56:01] <derhass> not only for fullscreen[22:56:24] *** slvn_ <slvn_!~slvn_@c2s31-1-78-245-90-111.fbx.proxad.net> has quit IRC (Quit: Leaving)[22:56:54] <englosh> ooh.. just for a little bit more perfomance? that would probably be the fastest way then[22:57:18] <Stragus> More a matter of convenience[22:57:39] <Stragus> It really makes no difference for so few vertices[23:00:45] *** unreal <unreal!~unreal@unaffiliated/unreal> has quit IRC (Ping timeout: 246 seconds)[23:04:13] *** ShadowIce <ShadowIce!~pyoro@unaffiliated/shadowice-x841044> has joined ##OpenGL[23:07:52] *** ShadowIce <ShadowIce!~pyoro@unaffiliated/shadowice-x841044> has quit IRC (Client Quit)[23:10:02] *** Wagoo <Wagoo!~wagoo@24.65.76.83.dynamic.wline.res.cust.swisscom.ch> has quit IRC (Ping timeout: 245 seconds)[23:12:15] <englosh> it never hurts to use indices right? I will probably use it for lower memory footprint[23:14:29] <Yaniel> for a single quad you'll only increase the memory[23:15:50] <englosh> ooh.. and what about 2 rectangles/quads?[23:16:17] <englosh> I heard it can reduce draw calls[23:16:29] <derhass> not really[23:27:44] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[23:38:46] *** d3x0r <d3x0r!~d3x0r@ip174-72-226-164.lv.lv.cox.net> has quit IRC (Read error: Connection reset by peer)[23:47:13] *** krystcich <krystcich!~krystcich@088156132126.dynamic-ww-04.vectranet.pl> has quit IRC (Quit: Going offline, see ya! 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