September 21, 2016 
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September 21, 2016 [00:01:06] *** Albori <Albori!~Albori@64-15-83-167.fidnet.com> has joined ##OpenGL[00:03:15] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Ping timeout: 244 seconds)[00:04:16] *** Albori <Albori!~Albori@64-15-83-167.fidnet.com> has quit IRC (Excess Flood)[00:05:45] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[00:07:33] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 276 seconds)[00:08:11] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has joined ##OpenGL[00:09:57] <foobaz> how can you use SIMD in raytracing? shading adjacent pixels that you have already determined to be on the same shape?[00:10:56] <Codex_> foobaz: the same way how shaders are doing it[00:11:17] <Codex_> use of the same algorithm, but following different path through it[00:11:28] <foobaz> seems like tracing the rays is a very serial process because they can go down different paths in your spatial geometry tree[00:11:34] <Stragus> You can use SIMD when the rays are coherent, until the bundle breaks up[00:11:41] *** Jeanne-Kamikaze <Jeanne-Kamikaze!~Jeanne-Ka@thunderhill.nvidia.com> has quit IRC (Read error: Connection reset by peer)[00:11:50] <foobaz> but maybe once you find out what rays intersect what geometry you can shade them in parallel[00:12:30] <Stragus> Codex_: GPU hardware can do very cheap scatter/gather, CPU SIMD can't[00:12:40] <Stragus> Same for branching[00:13:08] *** slidercrank <slidercrank!~slidercra@unaffiliated/slidercrank> has quit IRC (Ping timeout: 265 seconds)[00:13:58] <foobaz> i wonder if there's any data structure with good random access time like a tree but which is less branch-heavy so it's more parallelizable[00:14:57] <Stragus> Sure, non-hierarchical graphs[00:15:11] <Stragus> Hierarchy and trees are terrible, it's just easy to implement[00:15:15] <Stragus> Hierarchies*[00:16:03] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[00:16:20] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[00:16:30] <foobaz> trees are great for huge data sets and for worst-case performance[00:17:18] <Stragus> Meh, they are never great to me, this jumping all over the place in memory impossible to parallelize[00:17:47] *** Waynes <Waynes!~wayness@23.94.61.168> has quit IRC (Quit: Leaving.)[00:17:58] <foobaz> yea you have to protect the whole tree with a mutex[00:18:11] <foobaz> can't even do copy-on-write to make a new tree[00:18:55] <foobaz> although i've heard about a structure called finger trees which is immutable and copy-on-write, that doesn't need the mutex but still has terrible memory access patterns[00:19:06] *** kasper^ <kasper^!~safaf@82.137.10.213> has quit IRC (Ping timeout: 264 seconds)[00:19:44] <foobaz> for decades computing has been built on binary trees but they do seem to be at odds with 21st century hardware[00:19:48] *** unreal <unreal!~unreal@unaffiliated/unreal> has joined ##OpenGL[00:20:22] <chrisf> barely made sense on 90s hardware ;)[00:20:26] <foobaz> these non-hierarchical graphs seem like an undeveloped area, i hope they find good solutions[00:20:28] *** eivarv <eivarv!~eivarv@cm-84.215.4.97.getinternet.no> has joined ##OpenGL[00:26:23] *** notadeveloper <notadeveloper!~letsmakej@2602:306:bd2a:a160:ba27:ebff:fec6:9520> has joined ##OpenGL[00:26:34] *** fergal <fergal!~fergal@62.6.144.250> has quit IRC (Quit: fergal)[00:28:29] *** swnc <swnc!~swnc@port-92-204-76-157.dynamic.qsc.de> has quit IRC (Remote host closed the connection)[00:31:42] *** unreal <unreal!~unreal@unaffiliated/unreal> has quit IRC (Read error: Connection reset by peer)[00:32:26] *** unreal <unreal!~unreal@unaffiliated/unreal> has joined ##OpenGL[00:33:30] *** Albori <Albori!~Albori@64-15-83-167.fidnet.com> has joined ##OpenGL[00:35:11] *** Joefish 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nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[01:03:31] <}> finger trees are mostly used in pure functional languages like haskell[01:03:40] <}> and even there they're a huge pain in the ass to work with[01:05:21] *** MrFlibble <MrFlibble!~Flibble@90.196.207.27> has quit IRC (Quit: MrFlibble)[01:06:42] *** reogl <reogl!~max@octopus.cs.ucdavis.edu> has quit IRC (Ping timeout: 276 seconds)[01:07:48] *** flavi0 <flavi0!~anon@unaffiliated/flavi0> has quit IRC (Quit: leaving)[01:08:31] *** karab44 <karab44!~karab44@unaffiliated/karab44> has quit IRC (Quit: Bye bye! o/)[01:09:35] <dahlia> afl_ext: yes, all c#, no gpu[01:09:37] <Codex_> stragus: oh, if you make the data structure constant, parallerizing is very easy. (and c++ allows making it constant, if you just make all member functions const)[01:09:48] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: Leaving)[01:10:49] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 255 seconds)[01:10:54] <dahlia> afl_ext: it took a couple minutes to render this: http://wwweb3d.net:8099/screenshots/csharpRaytracerInterpolatedNormals.jpg[01:11:03] <Stragus> What? How does making it "constant" help?[01:11:05] <dahlia> using the octree[01:11:22] <afl_ext> dahlia move it to gpu or at least to c++[01:11:27] *** doomlord <doomlord!~textual@host86-142-61-36.range86-142.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[01:11:30] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[01:11:44] <dahlia> afl_ext: it was just me learning the concept[01:11:54] <dahlia> not meant for real stuff[01:11:56] <afl_ext> dahlia the example you sent should be > 60 fps on gpu[01:12:01] <Codex_> stragus: read-only data structure never changes, so the operations different threads are doing will never cause problems.[01:12:13] <}> dahlia, needs more GL_TEXTURE_MAX_ANISOTROPY_EXT :-D[01:12:16] <}> hehe[01:12:37] <dahlia> well its slow because of searching the trimesh for intersections[01:12:43] <Stragus> I'm aware of that Codex_, the problem is SIMD parallelism. Or GPU warp parallelism, which far prefer coherent memory transactions[01:13:01] <Codex_> stragus: when the problems are things like race conditions and data structures changing under your implementation[01:13:24] <Codex_> oh dunno much about that[01:13:28] <dahlia> afl_ext: and i don't know how to do trimesh raytrace on gpu[01:13:40] <dahlia> at least in opengl[01:13:59] <Stragus> Would be more pleasant in CUDA or OpenCL than OpenGL[01:14:30] <Stragus> I'm doing about a billion rays per second on a GTX 980[01:14:43] <dahlia> pics?[01:15:34] <dahlia> theres probably a billion rays in that screenshot of mine[01:15:45] <Stragus> http://www.rayforce.net/rfmultihits.png[01:15:54] <Stragus> Or http://www.rayforce.net/rfboo.png[01:16:11] *** spich <spich!~yaaic@62.74.17.199> has joined ##OpenGL[01:16:24] <Stragus> I don't really have pretty pictures, since it was written to do physics[01:16:24] <dahlia> a tank?[01:16:48] <afl_ext> dahlia trace sponza[01:17:14] <dahlia> the exercise is over ;)[01:17:23] *** Gama11 <Gama11!~quassel@pD9F90242.dip0.t-ipconnect.de> has quit IRC (Remote host closed the connection)[01:17:27] <afl_ext> :([01:18:05] <dahlia> I think I have a tank model like that, or close to it[01:18:57] *** KAHR-Alpha <KAHR-Alpha!~Alpha@AReims-652-1-187-168.w92-142.abo.wanadoo.fr> has quit IRC (Ping timeout: 272 seconds)[01:19:05] *** spich <spich!~yaaic@62.74.17.199> has left ##OpenGL[01:19:23] *** razieliyo <razieliyo!~razieliyo@unaffiliated/razieliyo> has joined ##OpenGL[01:21:11] *** razieliyo <razieliyo!~razieliyo@unaffiliated/razieliyo> has quit IRC (Client Quit)[01:21:49] *** } <}!~none@unaffiliated/bsdbeard> has quit IRC ()[01:22:09] *** wolfcub <wolfcub!~henrique_@186.194.99.136> has joined ##OpenGL[01:23:25] *** Ad1 <Ad1!~Adrian@public-gprs394140.centertel.pl> has joined ##OpenGL[01:23:44] *** Ad1 <Ad1!~Adrian@public-gprs394140.centertel.pl> has quit IRC (Read error: Connection reset by peer)[01:24:30] <Codex_> dahlia: btw, are you using some acceleration structure for the ray tracing of the mesh?[01:24:42] *** quickbrownfox <quickbrownfox!~henrique_@177.131.178.148> has quit IRC (Ping timeout: 265 seconds)[01:25:07] <dahlia> Codex_: ya an octree[01:25:21] <dahlia> it was like 40ish minutes without it[01:25:27] <Codex_> it still takes couple of minutes to render that?[01:25:28] <dahlia> couple minutes with it[01:25:38] <Codex_> oh[01:25:46] <Stragus> Ouch[01:25:56] <afl_ext> c#[01:25:58] <Codex_> how does the ray find correct triangle from the mesh?[01:26:11] <Stragus> Even on the CPU, you can easily get 10 million rays per escond per core...[01:26:17] <Stragus> per second* per core[01:26:27] <dahlia> each triangle goes into the octree[01:26:38] <dahlia> it does ray query on the octree[01:26:49] <dahlia> then tests each triangle[01:26:56] <dahlia> picks the closest[01:27:00] <dahlia> and reflects[01:27:04] <dahlia> ...[01:27:24] <dahlia> I dont remember what the reflect limit was set at[01:27:37] <afl_ext> dahlia every octree box intersecting the ray is tested?[01:27:38] <dahlia> may have not been set[01:27:46] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[01:27:57] <afl_ext> lol you really need limit on it[01:28:24] <dahlia> afl_ext: well if a higher level node is empty.. then there's no children to test[01:28:42] <Codex_> dahlia: if it takes that long to render one image, how are you tweaking all shading parameters correctly without rendering the image repeatedly?[01:28:47] <afl_ext> dahlia i mean every node that is not empty and intersect[01:28:51] <afl_ext> you need to test them all[01:28:57] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[01:29:06] <dahlia> Codex_: by making the image smller[01:29:20] <dahlia> *smaller[01:29:55] <dahlia> its only a few seconds with a small image[01:30:41] <dahlia> and I did most of the shading using spheres[01:32:18] <dahlia> something like this is much faster http://dahliaisland.wwweb3d.net:8099/screenshots/csharpRaytracer06.jpg[01:33:15] *** Ad1_RN <Ad1_RN!~Ad1_RnR@public-gprs394140.centertel.pl> has quit IRC (Read error: Connection reset by peer)[01:36:19] <Codex_> dahlia: hmm, what kind of root finding are you using?[01:36:33] <dahlia> root finding?[01:36:54] <dahlia> you mean where it intersects the sphere?[01:37:05] <Codex_> yes, finding the surface of the sphere[01:37:18] <dahlia> cant remember, would have to dig the code up[01:38:59] <Codex_> I'm normally using lipschitz based root finding from "blinn's blobs"[01:40:49] <Codex_> it basically goes forward in x without ever jumping over the root.[01:41:28] <Codex_> so it just requires describing the objects as distance functions where there's surface at f(x,y,z)=0.[01:42:40] <Codex_> but I've never tried to do 2nd level rays after finding the first surface[01:42:48] <dahlia> Codex_: http://pastebin.com/jd0Z8dqY[01:43:20] *** konom <konom!~tamatias@141.15.138.77.rev.sfr.net> has joined ##OpenGL[01:43:44] *** derhass <derhass!~derhass@dslb-088-073-239-109.088.073.pools.vodafone-ip.de> has quit IRC (Quit: leaving)[01:43:59] <Codex_> oh, you have to write the intersection code for each object separately?[01:44:16] <Codex_> there's easier way to do that[01:45:05] <Stragus> It really helps performance if the pipeline only supports one kind of primitive, you want as little branching as possible and no function call in there[01:45:06] <dahlia> well the intersection test was different for each object type[01:49:10] *** ArkaZeen <ArkaZeen!~ArkaZeen@rn-nat-129-97-131-0.dynamic.uwaterloo.ca> has quit IRC (Ping timeout: 244 seconds)[01:50:23] *** funfunctor <funfunctor!~edward@203.44.10.68> has joined ##OpenGL[01:51:15] *** DolphinDream <DolphinDream!~DolphinDr@pool-74-98-212-98.pitbpa.fios.verizon.net> has joined ##OpenGL[01:53:45] *** pril <pril!~userid@unaffiliated/pril> has quit IRC ()[01:55:51] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.193.77> has joined ##OpenGL[01:56:36] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[01:59:57] * thoys casts a ray to dahlia[02:00:17] * dahlia intersects and reflects[02:06:46] * Codex_ passes the ray to process that separates the wavelengths, and sends it to moon via normal ethernet cable...[02:07:27] *** kofman <kofman!~kofman@198-27-128-168.static.sonic.net> has quit IRC (Ping timeout: 244 seconds)[02:07:56] *** konom <konom!~tamatias@141.15.138.77.rev.sfr.net> has quit IRC (Quit: Leaving)[02:08:12] *** Maddix <Maddix!ada15eca@gateway/web/freenode/ip.173.161.94.202> has quit IRC (Ping timeout: 240 seconds)[02:08:19] <afl_ext> actually there are raytracers that operate on wavelenght separated channels instead of rgb[02:10:07] * dahlia ponders the final map in portal 2[02:19:31] *** afl_ext1 <afl_ext1!~afl_ext3@aclg206.neoplus.adsl.tpnet.pl> has joined ##OpenGL[02:21:44] *** nine_milli <nine_milli!~nine_mill@32.211.52.104> has quit IRC (Quit: nine_milli)[02:22:03] *** Keniyal <Keniyal!~Keniyal@unaffiliated/keniyal> has joined ##OpenGL[02:24:03] *** afl_ext <afl_ext!~afl_ext3@unaffiliated/afl-ext/x-2796036> has quit IRC (Ping timeout: 276 seconds)[02:25:32] <foobaz> space space wanna go to space[02:25:45] <foobaz> what's your favorite thing about space? mine is space[02:26:37] <Codex_> it's so big?[02:27:04] <Codex_> filled with plenty of energy[02:27:25] <dahlia> it's so... curvy![02:27:46] <Codex_> moves faster than light[02:28:01] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has quit IRC (Quit: Leaving)[02:29:24] <ibouvousaime> its boring[02:30:17] *** ScorpionJack <ScorpionJack!~Scorpion@unaffiliated/scorpionjack> has quit IRC (Quit: ScorpionJack)[02:31:13] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[02:36:24] *** Codex_ <Codex_!~terop@91-157-91-164.elisa-laajakaista.fi> has quit IRC (Ping timeout: 276 seconds)[02:38:56] *** vassagus <vassagus!~vassagus@186.4.2.162> has quit IRC (Quit: Leaving...)[02:42:51] *** saijanai_ <saijanai_!~lawsoneng@ip68-98-121-112.ph.ph.cox.net> has joined 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##OpenGL[04:05:39] *** shingshang <shingshang!~shingshan@115-64-27-246.static.tpgi.com.au> has joined ##OpenGL[04:06:52] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has joined ##OpenGL[04:09:58] *** fqtw__ <fqtw__!~me@x4db130da.dyn.telefonica.de> has joined ##OpenGL[04:10:13] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[04:11:45] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has quit IRC (Remote host closed the connection)[04:13:03] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[04:13:30] *** fqtw_ <fqtw_!~me@x590e0bd7.dyn.telefonica.de> has quit IRC (Ping timeout: 244 seconds)[04:15:29] *** NateRiver <NateRiver!~IceChat9@softbank126093098229.bbtec.net> has joined ##OpenGL[04:15:38] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has joined ##OpenGL[04:17:43] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Remote host closed the connection)[04:19:02] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[04:19:31] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[04:22:09] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: This computer has gone to sleep)[04:27:09] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has joined ##OpenGL[04:27:53] <doek> hi ![04:28:10] <doek> I have a question...[04:30:01] *** matpow2 <matpow2!~Mathias@130.226.161.124> has quit IRC (Ping timeout: 248 seconds)[04:30:43] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[04:30:55] *** paperManu <paperManu!~Elite1334@gateway/shell/elitebnc/x-mbpldcgqnxtwfecr> has quit IRC (Read error: Connection reset by peer)[04:31:15] *** paperManu_ <paperManu_!Elite13342@gateway/shell/elitebnc/x-otgvxahooefxujsn> has joined ##OpenGL[04:31:24] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[04:31:26] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has quit IRC (Remote host closed the connection)[04:31:56] <doek> I have an image that had been rendered with a perspective and modelview matrices I know, I also have the depthmap. I'm trying to build a 3d model back from it. So since all positions were calculated with perspective*modelview*position, I thought that I could render the 3d coordinents back with inverse(modelview)*inverse(perspective)*vec4(x,y,depth,1)... it almost works but there is a slight error somewhere and I'm thinking[04:31:56] <doek> that it must have something to do with the depth and [near,far] clamping... any ideas ?[04:32:09] *** shingshang <shingshang!~shingshan@115-64-27-246.static.tpgi.com.au> has quit IRC (Ping timeout: 248 seconds)[04:41:43] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[04:42:15] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[04:43:27] *** ArkaZeen <ArkaZeen!~ArkaZeen@wn-res-nat-129-97-125-27.dynamic.uwaterloo.ca> has quit IRC ()[04:48:10] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 255 seconds)[04:48:34] *** akaWolf <akaWolf!~akaWolf@unaffiliated/akawolf> has quit IRC (Ping timeout: 240 seconds)[04:49:25] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[04:51:15] *** jherico <jherico!~bdavis@71-37-32-102.tukw.qwest.net> has joined ##OpenGL[04:53:47] *** hexagoxel <hexagoxel!~hexagoxel@p5B29A1D8.dip0.t-ipconnect.de> has quit IRC (Ping timeout: 244 seconds)[04:55:18] *** hexagoxel <hexagoxel!~hexagoxel@p200300798F20DD00021E33FFFE2231E9.dip0.t-ipconnect.de> has joined ##OpenGL[04:55:34] *** mudlord <mudlord!mudlord@rebote.net> has quit IRC (Ping timeout: 240 seconds)[04:58:18] *** BilboTheHobbit <BilboTheHobbit!~Emma@112.10.170.75> has joined ##OpenGL[04:58:30] *** MoZu4k__ <MoZu4k__!~MoZu4k@c-50-142-183-133.hsd1.tn.comcast.net> has quit IRC (Quit: MoZu4k__)[04:59:10] *** nine_milli <nine_milli!~nine_mill@32.211.52.104> has quit IRC (Quit: nine_milli)[05:02:00] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has joined ##OpenGL[05:03:24] *** mudlord <mudlord!mudlord@rebote.net> has joined ##OpenGL[05:04:02] <dahlia> doek: I'd try googling "unproject"[05:08:23] *** Keydns <Keydns!~Mutter@2601:198:103:12d7::d0e7> has joined ##OpenGL[05:09:39] <doek> dahlia: thanks, I think this might help :¬D[05:10:40] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[05:11:55] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[05:12:28] *** Twipply <Twipply!~Dunno@cpc1-mapp10-2-0-cust641.12-4.cable.virginm.net> has quit IRC (Quit: Leaving)[05:16:10] <doek> dahlia: humm from what I see it seems to be what I was doing...[05:16:47] <dahlia> doek: are your x,y,z in NDC?[05:18:57] <doek> dahlia: ah I think I got the problem here ! thanks ![05:20:01] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[05:20:11] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[05:21:49] *** Keydns <Keydns!~Mutter@2601:198:103:12d7::d0e7> has quit IRC (Remote host closed the connection)[05:22:09] <doek> dahlia: nope it wasn't that, well no they are not in NDC[05:24:30] *** d4ryus <d4ryus!~d4ryus@p54988998.dip0.t-ipconnect.de> has quit IRC (Ping timeout: 264 seconds)[05:26:10] *** Lunatrius <Lunatrius!~Lunatrius@77.38.21.26> has quit IRC (Read error: Connection reset by peer)[05:26:20] <dahlia> doek: here's an unproject I wrote that works http://pastebin.com/NxYgSaCU[05:26:40] <doek> dahlia: thanks ![05:26:57] *** d4ryus <d4ryus!~d4ryus@p54989165.dip0.t-ipconnect.de> has joined ##OpenGL[05:27:12] <dahlia> I think it takes mouse coordinates[05:30:34] *** Lunatrius <Lunatrius!~Lunatrius@77.38.21.26> has joined ##OpenGL[05:31:20] *** Lunatrius <Lunatrius!~Lunatrius@77.38.21.26> has quit IRC (Excess Flood)[05:33:05] <doek> dahlia: humm it really is the same, the only difference is (z) that is (2*z-1) in your case... but both do not work[05:33:34] *** xaxxon <xaxxon!~xaxxon@c-24-18-184-142.hsd1.wa.comcast.net> has joined ##OpenGL[05:33:35] <dahlia> doek: dunno :~[05:34:05] <doek> dahlia: why do you amplify z ?[05:34:05] <dahlia> maybe make sure y axis isn't inverted[05:34:21] <doek> dahlia: the result is almost correct[05:34:32] <xaxxon> I have a sprite with a transparent background and I want to outline the non-transparent part. What's the concept I want to learn about to do that?[05:34:40] <xaxxon> is it scissor?[05:35:06] <xaxxon> hrmmm, probably nto[05:35:07] <doek> xaxxon: discard in fragment shader ?[05:35:12] <dahlia> doek: not sure I remember, maybe because z ranges from -1 to 1[05:35:25] *** NateRiver <NateRiver!~IceChat9@softbank126093098229.bbtec.net> has quit IRC (Ping timeout: 260 seconds)[05:35:26] <dahlia> in NDC[05:35:56] <xaxxon> ahh, "stencil"[05:36:46] <doek> dahlia: the this is I render 8 times the same scene from different angles, and make a point cloud from it, they almost match, but not exactly...[05:37:10] <doek> dahlia: woops this sentence doesn't make any sens[05:37:17] <dahlia> lol[05:37:45] *** Lunatrius <Lunatrius!~Lunatrius@77.38.21.26> has joined ##OpenGL[05:37:52] <doek> dahlia: just remove "the this is"[05:38:08] <doek> dahlia: :¬P[05:38:33] <dahlia> how far off is "almost"?[05:39:41] <dahlia> not that I know about such things but I hear horror stories about 16 bit logarithmic depth buffers[05:40:12] <doek> yea I hope it's not about floats being crazy[05:40:15] <doek> dahlia: I'll show you a video[05:41:13] <dahlia> well that unproject works fine for me for picking but I've not used it for point clouds[05:48:06] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[05:51:37] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 255 seconds)[05:53:28] *** irrenhaus3 <irrenhaus3!~xenon@HSI-KBW-046-005-253-105.hsi8.kabel-badenwuerttemberg.de> has joined ##OpenGL[05:55:17] <doek> dahlia: http://laurent.sexy/video/IMG_5522.MOV[05:55:22] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[06:05:13] *** Keydns <Keydns!~Mutter@2601:198:103:12d7::d0e7> has joined ##OpenGL[06:05:19] *** Keydns <Keydns!~Mutter@2601:198:103:12d7::d0e7> has quit IRC (Remote host closed the connection)[06:05:45] *** TechnoCrunch <TechnoCrunch!~Tech@101.100.137.146> has joined ##OpenGL[06:05:55] <dahlia> doek: "Video cannot be played because the file is corrupt"[06:05:58] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has joined ##OpenGL[06:06:01] <doek> awww[06:06:04] <dahlia> youtube it :P[06:06:14] <doek> I could read it on VLC[06:06:31] <doek> dahlia: do you have VLC ?[06:06:44] <dahlia> anyway the algorithm works, you probably have a typo or something[06:07:14] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has quit IRC (Client Quit)[06:07:21] <doek> dahlia: well I'm almost there :¬D[06:07:54] <doek> dahlia: btw the 2*z-1 is correct, as I checked, my cubes were not cubes :¬P[06:08:14] <doek> dahlia: thanks :¬D[06:08:20] <dahlia> np[06:08:34] *** tambre <tambre!~tambre@6bb9-c0bd-721a-4cbf-a980-8a3e-07d0-2001.dyn.estpak.ee> has joined ##OpenGL[06:12:04] *** tristanseifert <tristanseifert!~tristanse@128.194.3.4> has quit IRC (Quit: WeeChat 1.5)[06:24:12] *** SwiftMatt <SwiftMatt!~Objective@027-194.eduroam-public.du.edu> has joined ##OpenGL[06:24:33] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[06:26:52] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[06:28:37] *** SwiftMatt <SwiftMatt!~Objective@027-194.eduroam-public.du.edu> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[06:41:41] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has joined ##OpenGL[06:42:50] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has quit IRC (Client Quit)[06:44:30] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[06:44:34] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[06:46:19] *** Codex_ <Codex_!~terop@91-157-91-164.elisa-laajakaista.fi> has joined ##OpenGL[06:51:37] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has joined ##OpenGL[06:52:22] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has quit IRC (Client Quit)[06:55:14] *** slidercrank <slidercrank!~slidercra@unaffiliated/slidercrank> has joined ##OpenGL[06:58:49] *** alexsystemf____ <alexsystemf____!uid64964@gateway/web/irccloud.com/x-lybbwocaywdstehd> has joined ##OpenGL[06:59:00] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[06:59:33] *** Beetny <Beetny!~Beetny@14-202-48-200.tpgi.com.au> has joined ##OpenGL[07:00:33] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 240 seconds)[07:00:35] <Stragus> Does anyone have ideas for a space filling curve that starts in the center of a 2D space and extend toward the edges? With mapping of an integer to 2D and back, like other space filling curves[07:02:46] *** kasper^ <kasper^!~safaf@82.137.14.62> has joined ##OpenGL[07:06:26] *** t0by <t0by!~t0by@host100-254-dynamic.41-79-r.retail.telecomitalia.it> has joined ##OpenGL[07:06:40] *** SHC <SHC!~quassel@117.204.41.214> has joined ##OpenGL[07:06:43] *** fqtw <fqtw!~me@x4db28a5c.dyn.telefonica.de> has joined ##OpenGL[07:07:29] *** wolfcub <wolfcub!~henrique_@186.194.99.136> has quit IRC (Ping timeout: 240 seconds)[07:08:47] *** fqtw_ <fqtw_!~me@x4db26fd2.dyn.telefonica.de> has joined ##OpenGL[07:10:27] *** fqtw__ <fqtw__!~me@x4db130da.dyn.telefonica.de> has quit IRC (Ping timeout: 272 seconds)[07:11:33] *** fqtw__ <fqtw__!~me@x590dc04f.dyn.telefonica.de> has joined ##OpenGL[07:12:16] *** fqtw <fqtw!~me@x4db28a5c.dyn.telefonica.de> has quit IRC (Ping timeout: 265 seconds)[07:12:32] *** jdolan <jdolan!~jdolan@2001:4800:7817:101:be76:4eff:fe05:2412> has left ##OpenGL[07:15:10] *** fqtw_ <fqtw_!~me@x4db26fd2.dyn.telefonica.de> has quit IRC (Ping timeout: 265 seconds)[07:15:18] <Codex_> stragus: can you do a spiral? But it might not hit the pixels in right positions? :)[07:15:47] <Stragus> Really looking for an integer based curve...[07:16:24] <Stragus> Each index must map on 2D point exactly[07:17:14] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has joined ##OpenGL[07:17:15] <Codex_> stragus: easiest space-filling curve is just like { (0.0) }, { (1.0), (0.1) }, { (2.0), (1,1), (0.2) }, etc... But it doesnt start from the center[07:18:14] <Stragus> And I need to be able to get the 2D point from an integer directly with little arithmetic[07:18:22] <Stragus> Like Hilbert space filling curves and friends[07:18:25] *** arescorpio <arescorpio!~arescorpi@221-27-245-190.fibertel.com.ar> has quit IRC (Quit: Leaving.)[07:18:31] <Stragus> Tricky little thing :)[07:20:09] <Codex_> what are you using the feature that it starts from the center for?[07:21:13] *** jdolan <jdolan!~jdolan@2001:4800:7817:101:be76:4eff:fe05:2412> has joined ##OpenGL[07:21:20] <Stragus> Need a good search patterns in photogrammetry, image analysis, trying to identify/locate things[07:21:28] <Stragus> pattern*[07:21:37] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has quit IRC (Ping timeout: 255 seconds)[07:21:43] <Codex_> so it needs to find stuff from the center of the image first?[07:22:03] <Stragus> That's the best place where to begin searching, yes[07:22:14] <Codex_> I wonder if flood fill might be able to do something like that[07:22:30] <Codex_> linearised flood fill[07:22:51] <Stragus> Eh, the rest of the software is complicated, it's recognizing 3D shapes from live video[07:22:52] *** NateRiver <NateRiver!~IceChat9@softbank126093098229.bbtec.net> has joined ##OpenGL[07:23:04] <Stragus> But I still need a good search patterns because processing cycles are limited[07:23:08] <Stragus> pattern*[07:23:34] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has quit IRC (Ping timeout: 240 seconds)[07:24:05] <Codex_> if you know the image size beforehand, flood fill might give you an array of pixel positions...[07:24:15] <Codex_> and that solves your problem[07:25:01] <Codex_> the array needs to be regenerated, if image size or the center point changes[07:25:49] <Stragus> I can generate the points and sort by distance, sure... I was looking for something more elegant ;)[07:26:06] <Stragus> Space filling curves are nice, but I don't know of any with the pattern I'm looking for[07:29:02] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[07:29:24] <Codex_> I wonder how long time sorting such array would take... never tried if it works...[07:29:38] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[07:29:46] *** fqtw_ <fqtw_!~me@x4db11772.dyn.telefonica.de> has joined ##OpenGL[07:30:12] <Codex_> you definitely can't do it every frame :-)[07:30:12] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has joined ##OpenGL[07:31:08] <Stragus> These points aren't pixels, more like tiles to check for "new stuff of interest" that frame[07:31:34] *** TSS_ <TSS_!~TSS@86.127.142.242> has quit IRC (Quit: ZNC 1.6.2 - http://znc.in)[07:31:53] *** jorj <jorj!~jorj@162.220.240.216> has quit IRC (Ping timeout: 248 seconds)[07:32:23] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has joined ##OpenGL[07:33:10] *** TSS_ <TSS_!~TSS@2a02:2f0a:4030:1218:d250:99ff:fe83:4a0a> has joined ##OpenGL[07:33:32] *** fqtw__ <fqtw__!~me@x590dc04f.dyn.telefonica.de> has quit IRC (Ping timeout: 265 seconds)[07:37:45] *** t0by <t0by!~t0by@host100-254-dynamic.41-79-r.retail.telecomitalia.it> has quit IRC (Ping timeout: 248 seconds)[07:39:17] <Codex_> the array solution is nice since it makes the access of the tile very simple: Tile f(int i) const { if (i<arraysize) return array[i]; else return Tile(); }[07:40:39] <Codex_> if you do it alot, this will speed up the algorithm very much[07:41:43] <Codex_> adding significant amount of logic to it might not be worth it[07:43:51] <Codex_> but it requires using the same array more than once...[07:45:33] *** eivarv <eivarv!~eivarv@cm-84.215.4.97.getinternet.no> has quit IRC (Quit: Sleep)[07:45:55] *** TSS_ <TSS_!~TSS@2a02:2f0a:4030:1218:d250:99ff:fe83:4a0a> has quit IRC (Ping timeout: 272 seconds)[07:46:50] *** jherico <jherico!~bdavis@71-37-32-102.tukw.qwest.net> has quit IRC (Quit: Leaving)[07:46:51] *** SwiftMatt <SwiftMatt!~Objective@130.253.27.194> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[07:47:27] <funfunctor> Is this formating correct? // Create texture with empty data, we will update it using glTexSubImage2D each frame. The captured video is YCbCr 4:2:2 packed into a UYVY macropixel. OpenGL has no YCbCr format so treat it as RGBA 4:4:4:4 by halving the width and using GL_RGBA internal format.[07:47:27] <funfunctor> glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, mFrameWidth/2, mFrameHeight, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL);[07:50:53] *** xaxxon <xaxxon!~xaxxon@c-24-18-184-142.hsd1.wa.comcast.net> has quit IRC (Quit: This computer has gone to sleep)[07:51:33] *** Waynes <Waynes!~wayness@23.94.61.168> has joined ##OpenGL[07:51:46] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has quit IRC (Ping timeout: 255 seconds)[07:51:53] *** TSS_ <TSS_!~TSS@86.127.142.242> has joined ##OpenGL[07:56:13] *** karab44 <karab44!~karab44@unaffiliated/karab44> has joined ##OpenGL[08:01:01] *** glYoda <glYoda!~MTLYoda@c-50-137-137-82.hsd1.or.comcast.net> has joined ##OpenGL[08:07:15] *** AlphaOmega82 <AlphaOmega82!~alfa@CPE48ee0c279953-CMbc140153e510.cpe.net.cable.rogers.com> has quit IRC (Ping timeout: 276 seconds)[08:08:04] *** AlphaOmega82 <AlphaOmega82!~alfa@CPE48ee0c279953-CMbc140153e510.cpe.net.cable.rogers.com> has joined ##OpenGL[08:14:54] *** Occulus2057 <Occulus2057!~Alfred@24-113-48-48.wavecable.com> has quit IRC (Quit: Leaving)[08:24:20] *** rendar <rendar!~rendar@host170-104-dynamic.61-82-r.retail.telecomitalia.it> has joined ##OpenGL[08:25:13] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[08:25:27] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[08:26:17] *** kasper^ <kasper^!~safaf@82.137.14.62> has quit IRC (Ping timeout: 248 seconds)[08:27:23] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[08:28:24] *** gellose <gellose!~mzzll@c-73-67-183-40.hsd1.or.comcast.net> has joined ##OpenGL[08:30:06] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[08:30:11] *** shingshang <shingshang!~shingshan@115-64-27-246.static.tpgi.com.au> has joined ##OpenGL[08:34:50] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[08:35:00] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has joined ##OpenGL[08:35:57] *** knmt <knmt!~k@69.63.37.65> has quit IRC (Quit: leaving)[08:36:35] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[08:37:42] <gellose> Hi, I have a strange problem in the app I'm developing. It's probably a memory bug that I'll have to tackle on my own, but it is driving me nuts and I wanted to try and see if anyone else has seen anything like it.[08:41:00] <gellose> It's reproducible. Basically I removed an unused shader and that has caused a formerly translucent quad to go totally opaque.[08:41:37] <Yaniel> suddenly it turns out that shader wasn't quite that unused[08:41:47] *** lucaswang <lucaswang!~lucaswang@117.135.159.4> has quit IRC (Remote host closed the connection)[08:41:56] <Stragus> You may have quite a mixup in GL state or GL object names[08:43:04] <btipling> finally resolved all my camera stuff[08:43:05] <btipling> finally[08:43:07] <btipling> https://youtu.be/TS2C6CFGYcY[08:43:09] <btipling> :D[08:43:24] *** SwiftMatt <SwiftMatt!~Objective@162.242.95.120> has joined ##OpenGL[08:43:28] <btipling> I had put the camera rotation in my lookat function[08:43:38] <btipling> but I needed to rotate after doing the lookat[08:43:39] <btipling> duh[08:43:41] <gellose> Yes, it's strange because the shader code has been commented to nothing, seems that nothing actually touches it either.[08:44:24] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[08:44:51] <gellose> The quads color can be changed, but the alpha value is not working.[08:44:54] *** mukunda <mukunda!~mukunda@c-71-205-185-63.hsd1.co.comcast.net> has quit IRC (Ping timeout: 264 seconds)[08:46:10] <gellose> Stragus: what do you mean by GL object names? perhaps a dumb question[08:46:42] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 264 seconds)[08:47:36] <Yaniel> basically any GLuint in your app[08:47:52] <gellose> ah, right[08:47:56] *** xissburg <xissburg!~xissburg@unaffiliated/xissburg> has quit IRC (Quit: leaving)[08:47:59] <Stragus> The "names" returned by glCreateShader, glGenTextures, and so on[08:49:31] *** xissburg <xissburg!~xissburg@unaffiliated/xissburg> has joined ##OpenGL[08:50:57] *** SwiftMatt <SwiftMatt!~Objective@162.242.95.120> has quit IRC (Quit: Textual IRC Client: www.textualapp.com)[08:52:50] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[08:52:58] *** fqtw__ <fqtw__!~me@x590db97d.dyn.telefonica.de> has joined ##OpenGL[08:52:59] <gellose> I'm looking in that direction now, thank you.[08:55:28] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[08:56:40] *** fqtw_ <fqtw_!~me@x4db11772.dyn.telefonica.de> has quit IRC (Ping timeout: 265 seconds)[08:59:41] *** fqtw_ <fqtw_!~me@x590e1139.dyn.telefonica.de> has joined ##OpenGL[08:59:41] *** fqtw__ <fqtw__!~me@x590db97d.dyn.telefonica.de> has quit IRC (Read error: Connection reset by peer)[09:02:14] *** carado <carado!~carado@bea44-1-78-193-226-57.fbxo.proxad.net> has joined ##OpenGL[09:13:30] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[09:14:44] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[09:15:46] *** doomlord <doomlord!~textual@host86-142-61-36.range86-142.btcentralplus.com> has joined ##OpenGL[09:21:06] *** fqtw__ <fqtw__!~me@x590ce61b.dyn.telefonica.de> has joined ##OpenGL[09:24:40] *** fqtw_ <fqtw_!~me@x590e1139.dyn.telefonica.de> has quit IRC (Ping timeout: 260 seconds)[09:29:57] *** xerpi <xerpi!~xerpi@191.red-83-46-76.dynamicip.rima-tde.net> has joined ##OpenGL[09:32:36] *** SHC_ <SHC_!~quassel@59.88.213.119> has joined ##OpenGL[09:32:55] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has joined ##OpenGL[09:33:24] *** alexsystemf____ <alexsystemf____!uid64964@gateway/web/irccloud.com/x-lybbwocaywdstehd> has quit IRC (Quit: Connection closed for inactivity)[09:36:18] *** SHC <SHC!~quassel@117.204.41.214> has quit IRC (Ping timeout: 276 seconds)[09:36:25] *** fqtw_ <fqtw_!~me@x590d5004.dyn.telefonica.de> has joined ##OpenGL[09:38:10] *** xaxxon_ <xaxxon_!~xaxxon@c-24-18-184-142.hsd1.wa.comcast.net> has joined ##OpenGL[09:39:41] *** fqtw__ <fqtw__!~me@x590ce61b.dyn.telefonica.de> has quit IRC (Ping timeout: 265 seconds)[09:39:52] *** fqtw <fqtw!~me@x590d2246.dyn.telefonica.de> has joined ##OpenGL[09:42:06] *** fqtw_ <fqtw_!~me@x590d5004.dyn.telefonica.de> has quit IRC (Ping timeout: 244 seconds)[09:43:38] *** neure <neure!~tsuorant@46.163.250.82> has joined ##OpenGL[09:48:57] *** begui_ <begui_!~bj@104-136-35-54.res.bhn.net> has joined ##OpenGL[09:49:12] *** begui <begui!~bj@104-136-35-54.res.bhn.net> has quit IRC (Quit: Bye)[09:49:24] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[09:50:01] *** ratchetfreak <ratchetfreak!c351a8d8@gateway/web/freenode/ip.195.81.168.216> has joined ##OpenGL[09:50:11] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[09:52:12] *** fqtw_ <fqtw_!~me@x590c1580.dyn.telefonica.de> has joined ##OpenGL[09:55:02] *** fqtw <fqtw!~me@x590d2246.dyn.telefonica.de> has quit IRC (Ping timeout: 244 seconds)[09:57:27] *** foobaz <foobaz!~oofabz@2001:558:6025:4b:183f:744c:8e80:850d> has quit IRC (Ping timeout: 268 seconds)[10:00:15] *** SHC_ is now known as SHC[10:01:00] *** GinoManWorks <GinoManWorks!~GinoMan@50-251-53-110-static.hfc.comcastbusiness.net> has quit IRC (Read error: Connection reset by peer)[10:04:55] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 260 seconds)[10:06:03] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[10:09:29] *** xissburg <xissburg!~xissburg@unaffiliated/xissburg> has quit IRC (Remote host closed the connection)[10:10:08] *** xissburg <xissburg!~xissburg@unaffiliated/xissburg> has joined ##OpenGL[10:14:58] *** xaxxon_ <xaxxon_!~xaxxon@c-24-18-184-142.hsd1.wa.comcast.net> has quit IRC (Quit: Leaving)[10:15:44] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[10:16:11] *** Serpent7776 <Serpent7776!~Serpent77@90-156-68-175.internetia.net.pl> has joined ##OpenGL[10:18:05] *** Gama11 <Gama11!~quassel@pD9F90291.dip0.t-ipconnect.de> has joined ##OpenGL[10:24:03] *** konom <konom!~tamatias@141.15.138.77.rev.sfr.net> has joined ##OpenGL[10:24:43] *** linuxmint <linuxmint!~linuxmint@CPE-124-191-66-108.szbn2.lon.bigpond.net.au> has quit IRC (Quit: Leaving)[10:26:47] <gellose> I've figured it out! I must share...[10:29:09] *** gareppa <gareppa!~gareppa@151.28.158.45> has joined ##OpenGL[10:29:21] *** gareppa <gareppa!~gareppa@151.28.158.45> has quit IRC (Remote host closed the connection)[10:29:48] <gellose> The shader itself was a red herring. There's a std::set<string> storing a unique name for each shader. The bug could be killed by simply inserting the name of the old shader back into the set. At this point I feared the worst... some kind of dynamic allocation bug that could only be solved by C++ Jesus himself..[10:33:00] <gellose> But switching to a std::unordered_set<string> fixed the problem, without requiring the old shader name to be inserted. It turns out, because of the order of iteration, the quad was being drawn on a black background before the actual background was drawn, so it was blended with nothing and ended up opaque![10:33:04] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has quit IRC (Quit: Konversation terminated!)[10:34:06] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 244 seconds)[10:36:56] *** Acer <Acer!~Acer@116.68.108.54> has joined ##OpenGL[10:37:15] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has joined ##OpenGL[10:37:55] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[10:38:35] <ibouvousaime> what would be a good way of making opengl render a variable amount of objects, I mean with an amount of object that could change at any moment[10:41:40] <gellose> That is a very general question...[10:41:58] *** ertesx <ertesx!~never@p4FC92248.dip0.t-ipconnect.de> has joined ##OpenGL[10:42:55] *** kragnfroll <kragnfroll!c139f904@gateway/web/freenode/ip.193.57.249.4> has joined ##OpenGL[10:44:25] *** kragnfroll <kragnfroll!c139f904@gateway/web/freenode/ip.193.57.249.4> has quit IRC (Client Quit)[10:44:44] *** Kragnfroll <Kragnfroll!c139f904@gateway/web/freenode/ip.193.57.249.4> has joined ##OpenGL[10:45:39] <Kragnfroll> Hi guys ! I've a question about opengl context and shaders. I've an app using Qt and OpenSceneGraph. I can have multiple views, context ID seems to be correctly managed (each opened views have a different context ID, and context ID can be reuse if I close a view and open a new one).[10:45:45] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Read error: Connection reset by peer)[10:45:45] *** ertes <ertes!~never@p5485E43A.dip0.t-ipconnect.de> has quit IRC (Ping timeout: 250 seconds)[10:45:46] <Kragnfroll> My problem is that my shaders only works once per context ID. I mean if I load shader1 on view1, it's ok. Then if I close view1 and open view2, and if view1 contextID is the same as view2 context ID, then shader1 won't work, no shiny effects :(. But I can load shader2 on view2 and it's ok ![10:45:50] <Kragnfroll> Also, textures and model rendering is always OK. When shaders are KO, fixed pipeline is used.[10:47:05] *** pa <pa!~pa@unaffiliated/pa> has quit IRC (Ping timeout: 248 seconds)[10:47:50] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[10:47:56] *** gellose <gellose!~mzzll@c-73-67-183-40.hsd1.or.comcast.net> has quit IRC (Quit: Leaving)[10:48:24] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Read error: Connection reset by peer)[10:48:51] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[10:52:17] *** bjz_ <bjz_!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[10:52:32] *** Ipe_ <Ipe_!~Ipe@a91-156-244-1.elisa-laajakaista.fi> has joined ##OpenGL[10:53:17] *** bjz_ <bjz_!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Read error: Connection reset by peer)[10:55:42] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Ping timeout: 264 seconds)[10:55:57] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[10:56:21] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Read error: Connection reset by peer)[10:56:56] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[10:57:22] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Read error: Connection reset by peer)[10:57:56] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[11:00:05] *** pa <pa!~pa@unaffiliated/pa> has joined ##OpenGL[11:01:50] *** NateRiver <NateRiver!~IceChat9@softbank126093098229.bbtec.net> has quit IRC (Quit: REALITY.SYS Corrupted: Re-boot universe? (Y/N/Q))[11:04:51] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Read error: Connection reset by peer)[11:06:27] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[11:06:41] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[11:06:52] <Yaniel> if your textures and models work, you probably are using shared contexts[11:07:06] <Yaniel> and shared contexts only actually share data containers, which shaders are not[11:07:25] <Yaniel> so you have to load your shaders in every context where you want to use them[11:08:21] *** bjz <bjz!~bjz@14-201-215-168.tpgi.com.au> has joined ##OpenGL[11:09:01] *** swnc <swnc!~swnc@port-92-204-84-51.dynamic.qsc.de> has joined ##OpenGL[11:11:26] *** Ploppz <Ploppz!~ploppz@2001:700:303:b:f3ce:ca7c:3834:8e44> has joined ##OpenGL[11:19:38] *** KAHR-Alpha <KAHR-Alpha!~Alpha@AReims-652-1-187-168.w92-142.abo.wanadoo.fr> has joined 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<bjz!~bjz@14-201-215-168.tpgi.com.au> has quit IRC (Ping timeout: 265 seconds)[12:34:04] *** bjz <bjz!~bjz@104.222.140.104> has joined ##OpenGL[12:38:11] *** CuriousMan <CuriousMan!~chatzilla@dslb-188-107-142-250.188.107.pools.vodafone-ip.de> has joined ##OpenGL[12:38:42] <CuriousMan> Is a cast: float->int an expensive operation in glsl?[12:38:51] *** KAHR-Alpha <KAHR-Alpha!~Alpha@AReims-652-1-187-168.w92-142.abo.wanadoo.fr> has quit IRC (Ping timeout: 250 seconds)[12:38:53] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[12:39:36] *** SHC <SHC!~quassel@59.88.213.119> has quit IRC (Ping timeout: 276 seconds)[12:40:07] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[12:40:46] *** stelarcf <stelarcf!~stelarcf@exenir.com> has joined ##OpenGL[12:41:12] *** stelarcf <stelarcf!~stelarcf@exenir.com> has quit IRC (Client Quit)[12:41:31] *** stelarcf <stelarcf!~stelarcf@exenir.com> 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<funfunctor!~edward@promim2.lnk.telstra.net> has quit IRC (Ping timeout: 255 seconds)[13:10:09] *** stelarcf <stelarcf!~stelarcf@exenir.com> has quit IRC (Quit: stelarcf)[13:10:40] *** stelarcf <stelarcf!~stelarcf@exenir.com> has joined ##OpenGL[13:10:44] *** DolphinDream <DolphinDream!~DolphinDr@pool-74-98-212-98.pitbpa.fios.verizon.net> has quit IRC (Quit: DolphinDream)[13:12:38] *** ravior <ravior!~ravior@89.121.200.106> has joined ##OpenGL[13:13:37] *** Yaniel <Yaniel!yanielkolm@gateway/shell/matrix.org/x-oehekmfrgtvfbtle> has joined ##OpenGL[13:13:37] <Yaniel> it's never been exactly cheap anywhere[13:16:12] *** BilboTheHobbit <BilboTheHobbit!~Emma@112.10.170.113> has quit IRC (Read error: Connection timed out)[13:17:46] *** BilboTheHobbit <BilboTheHobbit!~Emma@112.10.170.113> has joined ##OpenGL[13:18:26] *** konom <konom!~tamatias@141.15.138.77.rev.sfr.net> has quit IRC (Read error: Connection reset by peer)[13:18:35] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 260 seconds)[13:21:13] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[13:25:10] <CuriousMan> Yaniel, do you have a source for it? I thought it would be possible in just a few cycles since it's in the case of 4 bytes float and 4 bytes int just a few bitwise operations[13:26:20] *** Ploppz <Ploppz!~ploppz@2001:700:303:b:f3ce:ca7c:3834:8e44> has quit IRC (Quit: WeeChat 1.5)[13:27:07] <Yaniel> uh no[13:28:04] <Yaniel> you have to extract the sign, mantissa and exponent, raise the mantissa to the exponent, truncate, apply sign[13:29:05] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 260 seconds)[13:29:10] <CuriousMan> Makes sense, thanks[13:30:25] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[13:37:02] *** TechnoCrunch <TechnoCrunch!~Tech@101.100.137.146> has quit IRC (Read error: Connection reset by peer)[13:37:28] <neure> there may be HW for conversion in some places[13:37:39] <neure> for attribute data for example[13:38:09] <Yaniel> maybe[13:38:41] <ratchetfreak> in hardware it doesn't sound that hard, you just need a shifter for raising the mantissa to the exponent and a set of xor+half-adders for the negation.[13:39:00] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Ping timeout: 260 seconds)[13:39:00] <ratchetfreak> and running all the wires into the correct places[13:39:13] *** kasper^ <kasper^!~safaf@82.137.15.177> has joined ##OpenGL[13:40:42] *** wolfcub <wolfcub!~henrique_@186.194.99.136> has joined ##OpenGL[13:40:50] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[13:41:21] <ratchetfreak> though just that will not account for overflow[13:43:16] *** omx <omx!~Vlad@86.127.60.21> has joined ##OpenGL[13:51:08] *** Asuran <Asuran!~Asuran@unaffiliated/asuran> has quit IRC (Quit: Leaving)[13:51:58] *** nikki93_ <nikki93_!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has joined ##OpenGL[13:53:06] *** nikki93 <nikki93!~nikki93@c-73-170-252-147.hsd1.ca.comcast.net> has quit IRC (Read error: Connection reset by peer)[13:53:36] *** 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begui_ is now known as begui[14:56:15] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has joined ##OpenGL[14:56:37] *** fqtw__ <fqtw__!~me@x4db1ca68.dyn.telefonica.de> has joined ##OpenGL[14:59:16] *** fqtw_ <fqtw_!~me@x590c1580.dyn.telefonica.de> has quit IRC (Ping timeout: 255 seconds)[15:00:08] *** fqtw_ <fqtw_!~me@x590e3273.dyn.telefonica.de> has joined ##OpenGL[15:00:19] *** nine_milli <nine_milli!~nine_mill@32.211.52.104> has joined ##OpenGL[15:00:44] *** nine_milli <nine_milli!~nine_mill@32.211.52.104> has quit IRC (Client Quit)[15:01:16] *** lucaswang <lucaswang!~lucaswang@183.167.211.74> has joined ##OpenGL[15:01:31] *** omx <omx!~Vlad@86.127.60.21> has quit IRC (Read error: Connection reset by peer)[15:03:04] *** fqtw__ <fqtw__!~me@x4db1ca68.dyn.telefonica.de> has quit IRC (Ping timeout: 240 seconds)[15:05:53] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has quit IRC (Remote host closed the connection)[15:09:36] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has joined ##OpenGL[15:10:16] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has joined ##OpenGL[15:11:23] *** lucaswang <lucaswang!~lucaswang@183.167.211.74> has quit IRC (Ping timeout: 250 seconds)[15:11:58] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has quit IRC (Remote host closed the connection)[15:23:15] *** Murii <Murii!~Murii@86.127.60.21> has quit IRC ()[15:28:43] <Kragnfroll> Hey Yaniel ! Sorry I missed your answer ... How can I know If Qt or OSG use shared OpenGL context ? Shall I search for the wglCreateContextAttribsARB call in the source ?[15:30:12] *** realz <realz!~realz@unaffiliated/realazthat> has quit IRC (Read error: Connection reset by peer)[15:38:33] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has quit IRC (Ping timeout: 240 seconds)[15:39:30] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has joined ##OpenGL[15:41:13] *** PaulCapestany <PaulCapestany!~PaulCapes@2604:5500:17:2ea:54be:94ab:7e72:1328> has joined ##OpenGL[15:42:06] *** tristanseifert <tristanseifert!~tristanse@nat-165-91-12-170.tamulink.tamu.edu> has joined ##OpenGL[15:43:56] *** knmt <knmt!~k@69.63.37.65> has joined ##OpenGL[15:44:10] *** torarne <torarne!torarnemat@gateway/shell/matrix.org/x-zjqopanbneskvles> has joined ##OpenGL[15:47:06] *** PaulCapestany <PaulCapestany!~PaulCapes@2604:5500:17:2ea:54be:94ab:7e72:1328> has quit IRC (Read error: Connection reset by peer)[15:49:05] *** Maddix <Maddix!ada15eca@gateway/web/freenode/ip.173.161.94.202> has joined ##OpenGL[15:49:25] *** PaulCapestany <PaulCapestany!~PaulCapes@2604:5500:17:2ea:54be:94ab:7e72:1328> has joined ##OpenGL[15:52:49] *** Twipply <Twipply!~Dunno@cpc1-mapp10-2-0-cust641.12-4.cable.virginm.net> has quit IRC (Ping timeout: 265 seconds)[15:53:12] <karalaine> Kragnfroll, check http://doc.qt.io/qt-5/qglcontext.html#create[15:53:27] <karalaine> you can give the context as parameter so it would be shared[15:59:55] *** Twipply <Twipply!~Dunno@cpc1-mapp10-2-0-cust641.12-4.cable.virginm.net> has joined ##OpenGL[16:02:38] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Remote host closed the connection)[16:06:33] *** snql <snql!~snql@snql.by> has quit IRC (Remote host closed the connection)[16:07:01] *** snql <snql!~snql@snql.by> has joined ##OpenGL[16:07:38] *** INSANU <INSANU!~jhonny@187.58.167.139> has joined ##OpenGL[16:10:49] *** ``Erik <``Erik!~erik@pool-100-16-14-17.bltmmd.fios.verizon.net> has quit IRC (Ping timeout: 255 seconds)[16:11:19] *** tristanseifert 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seconds)[16:23:33] *** Jeanne-Kamikaze <Jeanne-Kamikaze!~Jeanne-Ka@searspoint.nvidia.com> has joined ##OpenGL[16:24:23] *** GarrettShields <GarrettShields!~GarrettSh@CPE3497f6605400-CMbc14013107e0.cpe.net.cable.rogers.com> has joined ##OpenGL[16:28:59] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has quit IRC (Ping timeout: 265 seconds)[16:33:23] <btipling> hello[16:35:46] *** tristanseifert <tristanseifert!~tristanse@nat-165-91-12-170.tamulink.tamu.edu> has quit IRC (Ping timeout: 244 seconds)[16:36:32] *** fergal <fergal!~fergal@62.6.144.250> has quit IRC (Quit: fergal)[16:39:53] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has joined ##OpenGL[16:44:55] <flavi0> hallo btipling[16:45:24] <Xeek> howdy[16:45:41] *** salvakiya <salvakiya!~Salvakiya@host109-154-253-144.range109-154.btcentralplus.com> has quit IRC (Quit: Leaving)[16:45:59] <Xeek> btipling: nanovg has a scaling option, will make it nice for when I'm designing UI elements and I can zoom in without losing quality[16:46:05] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.56.190> has joined ##OpenGL[16:47:16] <flavi0> oh nanovg, sweet! was looking for a gl based vector drawing lib, was considering cairo with gl backend but it seemed a bit heavyweight.[16:47:18] *** Th30n <Th30n!~Th30n@93-142-115-63.adsl.net.t-com.hr> has joined ##OpenGL[16:47:39] <Xeek> nanovg is much more "drop-in" and the licensing is much more open[16:48:09] <flavi0> great to know, will check it[16:48:58] <Xeek> i want to make a ui design app but I can't decide on how to store the design model[16:49:03] <Xeek> maybe XML :-\[16:49:20] <Xeek> or maybe I should do it more .NET like and just generate python or something[16:50:04] <flavi0> Xeek: will it perform optimizations, like having queued draw operations internally and draw using batches of primitives using VBOs in case i want to draw like a million things with it?[16:51:09] <flavi0> for procedural 2D graphics in digital arts and such..[16:52:38] <flavi0> (time for another round of advertisement i guess) recently I created the #audiovisual channel on freenode for all things related to sound, light, realtime rendering, interaction, camera technology, sensors, etc. related to the creation of audio/visual digital arts. come over if you're interested and spread the word! :)[16:53:18] *** ertesx is now known as ertes[16:54:17] <Xeek> flavi0: yes[16:54:38] <flavi0> superb, thanks again for the tip then[16:58:47] *** nolash <nolash!~nolash@ip5f5bd522.dynamic.kabel-deutschland.de> has joined ##OpenGL[17:10:10] *** lucaswang <lucaswang!~lucaswang@183.167.211.74> has joined ##OpenGL[17:12:52] *** ejb <ejb!~ejb@unaffiliated/ejb> has joined ##OpenGL[17:13:11] *** BilboTheHobbit <BilboTheHobbit!~Emma@112.10.170.113> has quit IRC (Quit: Leaving.)[17:14:33] *** lucaswang <lucaswang!~lucaswang@183.167.211.74> has quit IRC (Ping timeout: 240 seconds)[17:14:53] *** zerd <zerd!~quassel@bat.slash.no> has quit IRC (Ping timeout: 250 seconds)[17:16:04] *** INSANU 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toor <toor!~toor@76.ip-51-254-204.eu> has joined ##OpenGL[19:53:47] *** KAHR-Alpha <KAHR-Alpha!~Alpha@AReims-652-1-187-168.w92-142.abo.wanadoo.fr> has joined ##OpenGL[19:58:40] *** joshsyn <joshsyn!~swoorup@14-203-132-32.static.tpgi.com.au> has joined ##OpenGL[19:58:42] *** Asuran <Asuran!~Asuran@unaffiliated/asuran> has quit IRC (Read error: Connection reset by peer)[20:00:23] *** Ad1_RN <Ad1_RN!~Ad1_RnR@public-gprs392317.centertel.pl> has joined ##OpenGL[20:07:20] *** realz <realz!~realz@unaffiliated/realazthat> has joined ##OpenGL[20:08:37] *** tristanseifert <tristanseifert!~tristanse@nat-165-91-12-212.tamulink.tamu.edu> has joined ##OpenGL[20:09:04] *** Twipply <Twipply!~Dunno@cpc1-mapp10-2-0-cust641.12-4.cable.virginm.net> has quit IRC (Quit: Leaving)[20:12:32] *** kasper^ <kasper^!~safaf@82.137.9.161> has joined ##OpenGL[20:16:04] *** harha_ <harha_!harha_@y55.ip4.netikka.fi> has joined ##OpenGL[20:20:54] *** roia <roia!~a.jensen@97.65.103.250> has quit IRC (Ping timeout: 264 seconds)[20:21:20] *** derhass <derhass!~derhass@dslb-088-073-239-109.088.073.pools.vodafone-ip.de> has joined ##OpenGL[20:26:10] *** tristanseifert <tristanseifert!~tristanse@nat-165-91-12-212.tamulink.tamu.edu> has quit IRC (Ping timeout: 260 seconds)[20:29:11] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has quit IRC (Quit: Leaving)[20:30:16] <btipling_> Xeek that's sweet[20:30:32] <btipling_> I'm excited to use nanovg when I need a UI in an opengl app[20:30:49] <btipling_> Xeek one can use nanovg with my own shaders and such right?[20:32:21] *** SHC <SHC!~quassel@59.98.109.29> has quit IRC (Remote host closed the connection)[20:33:38] <Xeek> btipling_: of course, nanovg uses it's own shaders[20:34:00] *** tristanseifert <tristanseifert!~tristanse@128.194.3.4> has joined ##OpenGL[20:34:08] <Xeek> btipling_: naturally, you'll want to glUseProgram for your shader after drawing with nanovg else you'll probably still be set to nanovg's shaders[20:39:46] *** Ryp <Ryp!~ryp@laf94-4-88-190-202-176.fbxo.proxad.net> has joined ##OpenGL[20:39:56] *** kasper_ <kasper_!~safaf@82.137.13.15> has joined ##OpenGL[20:41:17] *** kasper^ <kasper^!~safaf@82.137.9.161> has quit IRC (Ping timeout: 265 seconds)[20:41:45] *** Domx <Domx!~Domx@ppp59-167-222-112.qld.adsl.internode.on.net> has quit IRC (Read error: Connection reset by peer)[20:42:30] *** joshsyn <joshsyn!~swoorup@14-203-132-32.static.tpgi.com.au> has quit IRC (Ping timeout: 260 seconds)[20:42:48] *** thoys <thoys!~thoys@546BD364.cm-12-4d.dynamic.ziggo.nl> has joined ##OpenGL[20:49:21] *** Ryp <Ryp!~ryp@laf94-4-88-190-202-176.fbxo.proxad.net> has quit IRC (Quit: Konversation terminated!)[20:49:28] <btipling_> nice[20:49:37] <btipling_> yup[20:49:51] <btipling_> I change programs all the time[20:50:24] <btipling_> I'd probably draw nanovg last though[20:50:28] <btipling_> since it would be hud stuff[20:50:33] <Xeek> yeah[20:50:33] <btipling_> and menus[20:51:00] *** zerd <zerd!~quassel@bat.slash.no> has quit IRC (Ping timeout: 276 seconds)[20:51:05] <Xeek> I also would prefer to render to an fbo for hud stuff[20:51:15] <Xeek> do some cool post processing with it if I need to :-)[20:51:35] *** roia <roia!~a.jensen@97.65.103.250> has joined ##OpenGL[20:52:53] *** razieliyo <razieliyo!~razieliyo@unaffiliated/razieliyo> has quit IRC (Ping timeout: 265 seconds)[20:59:18] *** zerd <zerd!~quassel@bat.slash.no> has joined ##OpenGL[21:01:00] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Remote host closed the connection)[21:02:09] *** shingshang <shingshang!~shingshan@115-64-27-246.static.tpgi.com.au> has quit IRC (Ping timeout: 265 seconds)[21:03:14] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has joined ##OpenGL[21:05:01] *** ratchetfreak <ratchetfreak!~ratchetfr@ptr-2hj4tbosgukofg6keqhozub7h.ip6.access.telenet.be> has joined ##OpenGL[21:05:50] *** flavi0 <flavi0!~anon@unaffiliated/flavi0> has joined ##OpenGL[21:10:10] *** harha_ <harha_!harha_@y55.ip4.netikka.fi> has quit IRC ()[21:15:44] *** tambry <tambry!~tambre@fe4c-b441-c280-49e1-a980-8a3e-07d0-2001.dyn.estpak.ee> has joined ##OpenGL[21:15:47] <btipling_> that's all beyond me for now[21:15:58] <btipling_> at some point I'll get to learning that stuff[21:19:37] *** tambre <tambre!~tambre@6bb9-c0bd-721a-4cbf-a980-8a3e-07d0-2001.dyn.estpak.ee> has quit IRC (Ping timeout: 248 seconds)[21:20:09] *** tambry <tambry!~tambre@fe4c-b441-c280-49e1-a980-8a3e-07d0-2001.dyn.estpak.ee> has quit IRC (Ping timeout: 248 seconds)[21:25:41] <Xeek> i prefer to jump into the 2d stuff, makes it easier to throw some diagnostic info on the screen if some simple ui stuff is already built[21:26:20] <saijanai_> how would I redirect OpenGL to render to a bitmap instead of the screen?[21:26:49] <Xeek> frame buffer object[21:26:58] <Xeek> it renders to a texture[21:27:04] <saijanai_> xeek thanks. That sounds pretty trivial[21:27:20] <Xeek> it's several calls to get setup, but it is quite trivial :-)[21:28:02] <saijanai_> great. all the standard matrix for camera, perspective, etc, just redirect to the buffer instead of screen?[21:28:17] <Xeek> pretty much[21:28:33] <Xeek> https://www.opengl.org/wiki/Framebuffer_Object_Examples#Quick_example.2C_render_to_texture_.282D.29[21:29:01] <Xeek> actually that looks like more than I have when I do it :-\[21:31:37] *** crankslider <crankslider!~slidercra@unaffiliated/slidercrank> has joined ##OpenGL[21:33:31] <saijanai_> does't matter. Means I can do lots of fun stuff, and this might actually run at full speed (the main slowdown is using the double-interpreted drawing primitives): http://squeak.js.org/run/#url=http://freudenbergs.de/bert/squeakjs&files=[Squeak4.5-13680.image,Squeak4.5-13680.changes,SqueakV41.sources][21:33:52] <saijanai_> compiles ALL of squeak smalltalk to JS[21:34:34] *** Guest7580 <Guest7580!~pigeon@eth5284.nsw.adsl.internode.on.net> has quit IRC (Ping timeout: 244 seconds)[21:34:51] *** pigeon <pigeon!~pigeon@eth5284.nsw.adsl.internode.on.net> has joined ##OpenGL[21:38:44] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Remote host closed the connection)[21:41:14] *** CuriousMan <CuriousMan!~chatzilla@dslb-188-107-142-250.188.107.pools.vodafone-ip.de> has quit IRC (Quit: ChatZilla 0.9.92 [Firefox 48.0.2/20160823121617])[21:45:42] *** Maddix <Maddix!ada15eca@gateway/web/freenode/ip.173.161.94.202> has quit IRC (Ping timeout: 240 seconds)[21:49:20] *** MoZu4k__ <MoZu4k__!~MoZu4k@c-50-142-183-133.hsd1.tn.comcast.net> has joined ##OpenGL[21:49:55] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has joined ##OpenGL[21:50:29] *** Twipply <Twipply!~Dunno@cpc1-mapp10-2-0-cust641.12-4.cable.virginm.net> has joined ##OpenGL[21:50:29] *** Ploppz <Ploppz!~ploppz@2001:700:303:b:f3ce:ca7c:3834:8e44> has joined ##OpenGL[21:53:58] *** stelarcf <stelarcf!~stelarcf@exenir.com> has quit IRC (Quit: stelarcf)[21:56:57] *** paperManu_ is now known as paperManu[21:57:37] *** KAHR-Alpha <KAHR-Alpha!~Alpha@AReims-652-1-187-168.w92-142.abo.wanadoo.fr> has quit IRC (Remote host closed the connection)[21:58:01] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has joined ##OpenGL[21:58:10] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Remote host closed the connection)[21:58:27] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has joined ##OpenGL[21:59:13] *** KAHR-Alpha <KAHR-Alpha!~Alpha@AReims-652-1-187-168.w92-142.abo.wanadoo.fr> has joined ##OpenGL[22:02:18] *** roia <roia!~a.jensen@97.65.103.250> has quit IRC (Ping timeout: 244 seconds)[22:07:31] *** Malediction <Malediction!~Buggery@foritus.plus.com> has joined ##OpenGL[22:08:31] *** glYoda <glYoda!~MTLYoda@c-50-137-137-82.hsd1.or.comcast.net> has quit IRC (Quit: glYoda)[22:08:49] *** monsterjamp <monsterjamp!uid156866@gateway/web/irccloud.com/x-ggbvilkamwkniibr> has joined ##OpenGL[22:12:54] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.35.1> has quit IRC (Ping timeout: 276 seconds)[22:20:15] *** kasper^ <kasper^!~safaf@82.137.15.15> has joined ##OpenGL[22:21:45] *** afl_ext <afl_ext!~afl_ext3@unaffiliated/afl-ext/x-2796036> has quit IRC (Quit: Leaving)[22:22:07] *** kasper_ <kasper_!~safaf@82.137.13.15> has quit IRC (Ping timeout: 250 seconds)[22:22:45] *** stefkos <stefkos!~stefkos@82.177.144.226> has joined ##OpenGL[22:24:37] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has quit IRC (Quit: Leaving)[22:25:44] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has quit IRC (Quit: brb)[22:25:50] *** zagabar <zagabar!~zagabar@unaffiliated/zagabar> has joined ##OpenGL[22:26:04] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has joined ##OpenGL[22:26:29] *** joe9 <joe9!~user@ip68-106-244-183.ph.ph.cox.net> has joined ##OpenGL[22:26:58] <joe9> this works fine : http://bpaste.net/show/e884dd47d5de , this does not: http://bpaste.net/show/7be83b1736bf , notice the missing glBindBuffer before glBufferData call?[22:27:06] <joe9> i am under the imprresion that the VertexArray would have store the glBindBuffer call[22:27:26] <joe9> so, whenever I switch vertexArray using glEnableVertexArray, I would have to do glBindBuffer too . full source: https://gist.github.com/7c337e420f4a358da713229251c40938[22:27:30] <joe9> any kind comments, please?[22:28:08] <joe9> I would have to do "glBindVertexArray and then glBindBuffer" to draw from a particular buffer?[22:28:35] <joe9> Does not the VertexArray store the current bound buffer id/name too?[22:28:52] *** xerpi <xerpi!~xerpi@38.red-88-7-103.staticip.rima-tde.net> has joined ##OpenGL[22:29:22] <derhass> no it does not[22:29:41] <derhass> and you don't need any of that to draw[22:29:48] <slime> it stores the state set by glVertexAttribPointer, which includes the buffer the attribute was specified for[22:30:28] *** ibouvousaime <ibouvousaime!~ibouvousa@41.82.35.1> has joined ##OpenGL[22:38:00] <joe9> derhass: slime, cool . Thanks.[22:39:11] <joe9> derhass: just to confirm "and you don't need any of that to draw" -- with this line, you mean that I do not need the glBindBuffer or the glBufferData comamnds to draw, correct? I just need them when loading the buffers with data. correct?[22:39:13] *** roia <roia!~a.jensen@97.65.103.250> has joined ##OpenGL[22:39:28] <derhass> yes[22:39:34] <joe9> derhass. Thanks.[22:39:48] *** konom <konom!~tamatias@141.15.138.77.rev.sfr.net> has quit IRC (Quit: Leaving)[22:40:18] *** Birchy <Birchy!~Birchy@178-164-108.52.3p.ntebredband.no> has joined ##OpenGL[22:42:03] *** roia <roia!~a.jensen@97.65.103.250> has quit IRC (Client Quit)[22:43:28] *** Maddix <Maddix!ada15eca@gateway/web/freenode/ip.173.161.94.202> has joined ##OpenGL[22:43:39] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has quit IRC (Quit: Leaving)[22:43:52] <joe9> derhass: just to confirm, is it ok to setup the attributes before loading the buffer? do you foresee any issues with this control flow? http://bpaste.net/show/f1502f165ef8[22:43:57] <joe9> slime ^^[22:44:35] <joe9> set the attribute bindings for all vertex arrays and buffers. and, then load the buffer when the need arises.[22:46:11] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has joined ##OpenGL[22:46:42] <joe9> sorry for the bother. just want to doublecheck to avoid getting burnt later.[22:47:37] <dahlia> joe9: I thought the specs say glAttribPointer copies the buffer name but I may be wrong... check it yourself to be sure[22:49:45] <joe9> dahlia: did you mean glVertexAttribPointer?[22:49:54] <dahlia> ya :)[22:50:41] *** DrBenway <DrBenway!~DrBenway@190.18.153.73> has quit IRC (Remote host closed the connection)[22:51:02] *** ArkaZeen <ArkaZeen!~ArkaZeen@rn-nat-129-97-131-0.dynamic.uwaterloo.ca> has joined ##OpenGL[22:51:49] <joe9> this is as per the spec: The buffer object binding (GL_ARRAY_BUFFER_BINDING) is saved as generic vertex attribute array state (GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING) for index index[22:51:56] <joe9> https://www.opengl.org/wiki/GLAPI/glVertexAttribPointer[22:52:24] <joe9> I am on OpenGL 3.3 and am not sure if that is making the difference.[22:52:28] <dahlia> oh ok I don't know if that means the name or not[22:53:20] <joe9> dahlia: this does not work: http://bpaste.net/show/02729f75a5e6[22:53:49] <joe9> dahlia: this works though: http://bpaste.net/show/b47ecee47a01[22:55:03] *** zerd <zerd!~quassel@bat.slash.no> has quit IRC (Ping timeout: 240 seconds)[22:55:11] <dahlia> ya it's been a while since I did 3.x, I've been using webgl mostly lately and it doesnt have vaos[22:55:37] <dahlia> someone else here probably knows better[22:56:00] <joe9> dahlia: ok, Thanks.[22:57:03] *** Jeanne-Kamikaze <Jeanne-Kamikaze!~Jeanne-Ka@searspoint.nvidia.com> has quit IRC (Read error: Connection reset by peer)[23:01:47] *** zerd <zerd!~quassel@bat.slash.no> has joined ##OpenGL[23:04:50] <notadeveloper> anyone compiling windows opengl apps with cl.exe? 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