March 26, 2019 
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March 26, 2019 [00:02:09] *** verm1n <verm1n!~verm1n@pool-71-162-119-247.bstnma.fios.verizon.net> has quit IRC (Read error: Connection reset by peer)[00:03:38] *** verm1n <verm1n!~verm1n@pool-71-162-119-247.bstnma.fios.verizon.net> has joined ##OpenGL[00:09:51] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has quit IRC (Read error: Connection reset by peer)[00:12:01] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has joined ##OpenGL[00:18:49] *** lucid-lullaby <lucid-lullaby!~lucid-lul@66.115.169.237> has joined ##OpenGL[00:25:44] *** slidercrank <slidercrank!~slidercra@ircpuzzles/2015/april-fools/fifth/slidercrank> has quit IRC (Ping timeout: 244 seconds)[00:28:32] *** toblorone <toblorone!~toblorone@162.246.216.28> has joined ##OpenGL[00:29:07] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[00:35:24] *** toblorone <toblorone!~toblorone@162.246.216.28> has quit IRC (Ping timeout: 250 seconds)[00:55:29] *** glYoda <glYoda!~MTLYoda@c-73-25-27-206.hsd1.or.comcast.net> has quit IRC (Ping timeout: 246 seconds)[00:59:01] *** serg-z <serg-z!~serg-z@87.247.9.126> has quit IRC (Quit: ZNC 1.7.2 - https://znc.in)[01:02:36] *** azonenberg <azonenberg!~azonenber@chat.privdmz.poulsbo.antikernel.net> has left ##OpenGL[01:10:20] *** serg-z <serg-z!~serg-z@188.246.244.232> has joined ##OpenGL[01:22:05] *** KAHR-Alpha <KAHR-Alpha!~Alpha@2a01cb0d024a6600d5714ab67e1a62eb.ipv6.abo.wanadoo.fr> has quit IRC (Ping timeout: 258 seconds)[01:22:08] *** learningc <learningc!~learningc@mti-37-145.tm.net.my> has joined ##OpenGL[01:27:58] *** learningc <learningc!~learningc@mti-37-145.tm.net.my> has quit IRC (Ping timeout: 250 seconds)[01:29:07] *** learningc <learningc!~learningc@mti-37-145.tm.net.my> has joined ##OpenGL[02:07:04] *** serg-z <serg-z!~serg-z@188.246.244.232> has quit IRC (Ping timeout: 255 seconds)[02:12:19] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has quit IRC (Quit: Pull the lever, Kronk. Wrong leverrrrrrr!)[02:14:51] *** learningc <learningc!~learningc@mti-37-145.tm.net.my> has quit IRC (Quit: Leaving)[02:16:00] *** random_yanek <random_yanek!~random_ya@host-89-230-164-252.dynamic.mm.pl> has quit IRC (Ping timeout: 246 seconds)[02:16:02] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: This computer has gone to sleep)[02:18:06] *** disruptek <disruptek!~disruptek@c-73-233-65-168.hsd1.pa.comcast.net> has quit IRC (Ping timeout: 250 seconds)[02:18:30] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[02:20:54] *** disruptek <disruptek!~disruptek@c-73-233-65-168.hsd1.pa.comcast.net> has joined ##OpenGL[02:22:02] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[02:24:20] *** R2robot <R2robot!~R2robot@unaffiliated/r2ro> has joined ##OpenGL[02:25:57] *** zalt__ <zalt__!~lambda443@unaffiliated/lambda443> has quit IRC (Read error: Connection reset by peer)[02:27:42] *** random_yanek <random_yanek!~random_ya@host-89-230-166-106.dynamic.mm.pl> has joined ##OpenGL[02:35:05] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[02:42:12] *** ratchet_freak <ratchet_freak!~ratchetfr@ptr-82s3g7l9r42569r41f4.18120a2.ip6.access.telenet.be> has quit IRC (Ping timeout: 258 seconds)[02:44:02] *** disruptek <disruptek!~disruptek@c-73-233-65-168.hsd1.pa.comcast.net> has quit IRC (Quit: Bye)[02:53:34] *** serg-z <serg-z!~serg-z@5.34.109.8> has joined ##OpenGL[02:54:15] *** esrse <esrse!~nil@175.126.171.165> has joined ##OpenGL[02:57:17] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: This computer has gone to sleep)[02:57:27] *** grim001 <grim001!~grim001@ip70-189-228-129.lv.lv.cox.net> has quit IRC (Read error: Connection reset by peer)[03:15:23] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[03:17:36] *** LunarJetman2 <LunarJetman2!LunarJetma@5ec16e1a.skybroadband.com> has quit IRC (Ping timeout: 250 seconds)[03:29:03] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has quit IRC (Quit: Leaving)[03:33:11] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has joined ##OpenGL[03:49:57] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Quit: Leaving...)[04:04:37] *** akawaka <akawaka!~akawaka@cpe-24-24-219-100.socal.res.rr.com> has quit IRC (Ping timeout: 245 seconds)[04:06:21] *** akawaka <akawaka!~akawaka@cpe-24-24-219-100.socal.res.rr.com> has joined ##OpenGL[04:47:12] *** xx2 <xx2!~xx2@212.253.8.72> has joined ##OpenGL[04:53:58] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[05:24:44] *** glYoda <glYoda!~MTLYoda@c-73-25-27-206.hsd1.or.comcast.net> has joined ##OpenGL[05:25:38] *** fatalhalt <fatalhalt!~fatalhalt@c-67-163-60-93.hsd1.il.comcast.net> has quit IRC (Quit: fatal halt)[05:33:23] *** immibis <immibis!~immibis@125.238.72.168> has joined ##OpenGL[06:02:08] *** serg-z <serg-z!~serg-z@5.34.109.8> has quit IRC (Ping timeout: 245 seconds)[06:13:42] *** serg-z <serg-z!~serg-z@37.99.38.247> has joined ##OpenGL[06:28:42] *** serg-z <serg-z!~serg-z@37.99.38.247> has quit IRC (Ping timeout: 246 seconds)[06:44:15] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[06:48:37] *** GreyHound <GreyHound!~GreyHound@112.97.56.30> has quit IRC (Read error: Connection reset by peer)[06:48:51] *** GreyHound <GreyHound!~GreyHound@119.130.230.191> has joined ##OpenGL[06:53:04] *** groton <groton!~groton@unaffiliated/groton> has joined ##OpenGL[07:01:11] *** realz <realz!~realz@unaffiliated/realazthat> has joined ##OpenGL[07:07:41] <Elronnd> I'm trying to figure out perspective transforms. My vertex shader is http://ix.io/1EvZ/glsl, but when I use it, the textured triangles I'm drawing are nowhere to be found! I know the problem is with the projection matrix, because if I take it out (just view * model * vec4(in_pos, 1.0)), I see it fine. Where am I going wrong? My projection is a perspective(to_rad(45), aspect_ratio, 0.1, 100.0);[07:28:58] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[07:37:40] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[07:49:07] <karalaine> Elronnd: got further with it? have you checked that with your current view matrix, your triangle z-coords end up in 0.1-100.0 range?[07:58:38] *** CoolerZ <CoolerZ!~coolerext@14.139.38.172> has joined ##OpenGL[08:07:11] <Elronnd> karalaine: ahh...interesting[08:07:17] <Elronnd> my z coordinate is negative[08:08:21] <Elronnd> yeah, I'm ending up with lots of negative coords[08:09:56] <Elronnd> and when I add in the projection, I end up with coords outside of NDC[08:10:03] <Elronnd> why, though?[08:12:04] <karalaine> well could I see your actual data and matrices?[08:12:38] <Elronnd> yah, one sec[08:15:09] <Elronnd> http://sprunge.us/5pK5su here[08:18:32] <karalaine> how about the triangle?[08:20:10] <Elronnd> with the partial distortion or none?[08:21:23] <Elronnd> https://files.catbox.moe/c6vlyq.png[08:21:33] *** CoolerZ <CoolerZ!~coolerext@14.139.38.172> has left ##OpenGL ("Leaving")[08:22:19] <Elronnd> oh, you mean triangle coords? (+/-0.5, +/-0.5, 0)[08:23:22] <karalaine> yeah[08:24:38] <Elronnd> also tried with +/-50 in case 0.5 was too small to be seen on a 0-100 range -- no effect[08:38:25] <karalaine> are you implementing the math yourself? at least the parameters for constructing matrices look correct[08:38:58] *** ratchet_freak <ratchet_freak!~ratchetfr@ptr-82s3g7l9r42569r41f4.18120a2.ip6.access.telenet.be> has joined ##OpenGL[08:39:48] <Elronnd> I'm using a library, but not a well-known one like glm. Is there something easy-to-start-up-with like in numpy I can check the numbers against?[08:40:45] <Elronnd> https://github.com/d-gamedev-team/gfm/blob/master/math/gfm/math/matrix.d#L644 this is their perspective transform function[08:41:08] *** esrse <esrse!~nil@175.126.171.165> has quit IRC (Read error: Connection reset by peer)[08:43:06] *** Matthijs <Matthijs!~quassel@unaffiliated/matthijs> has joined ##OpenGL[08:43:18] *** ratchet_freak <ratchet_freak!~ratchetfr@ptr-82s3g7l9r42569r41f4.18120a2.ip6.access.telenet.be> has quit IRC (Ping timeout: 258 seconds)[08:43:52] <karalaine> looks correct, not familiar with numpy but if it has matrix operations you can calc the final values manually[08:44:42] <Elronnd> I don't know numpy either, actually, I just know that it's supposed to be _the_ math lib[08:45:40] <Elronnd> WAITWAIT[08:45:48] <Elronnd> I'm an idiot[08:46:14] <Elronnd> I set transpose to true, and now it works[08:49:07] *** stefkos <stefkos!~Pawel@79.184.73.24.ipv4.supernova.orange.pl> has joined ##OpenGL[08:49:39] *** Foaly <Foaly!~Foaly@ppp-88-217-49-61.dynamic.mnet-online.de> has joined ##OpenGL[08:51:51] <karalaine> oh your lib was giving you row major layout?[08:53:32] *** esrse <esrse!~nil@175.126.171.165> has joined ##OpenGL[08:54:28] *** serg-z <serg-z!~serg-z@37.99.63.249> has joined ##OpenGL[08:58:25] <karalaine> so it seems http://d-gamedev-team.github.io/gfm/gfm.math.matrix.html[08:58:41] <karalaine> weird that they provide opengl wrapper as well but still use different convention[09:04:58] *** xx2 <xx2!~xx2@212.253.8.72> has quit IRC (Quit: Leaving)[09:07:07] *** slidercrank <slidercrank!~slidercra@ircpuzzles/2015/april-fools/fifth/slidercrank> has joined ##OpenGL[09:11:40] *** serg-z <serg-z!~serg-z@37.99.63.249> has quit IRC (Ping timeout: 272 seconds)[09:12:03] *** serg-z <serg-z!~serg-z@5.34.18.14> has joined ##OpenGL[09:12:16] *** serg-z <serg-z!~serg-z@5.34.18.14> has quit IRC (Client Quit)[09:13:14] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Ping timeout: 250 seconds)[09:22:30] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[10:08:22] <DarkUranium> karalaine, you mean rows/columns?[10:08:26] <DarkUranium> Or what?[10:08:45] *** ratchetfreak <ratchetfreak!c351a8d8@gateway/web/freenode/ip.195.81.168.216> has joined ##OpenGL[10:17:32] <karalaine> yeah[10:20:05] <DarkUranium> Wonder if it's on purpose. TBH, the GL convention makes little sense to me, because it's the opposite of the mathematical one *and* because it eliminates a handy mnemonic.[10:20:11] <DarkUranium> I keep messing this up in GL.[10:20:21] <DarkUranium> E.g. writing `mat3x4` when I meant `mat4x3`.[10:23:22] *** Chipzz <Chipzz!chipzz@unaffiliated/chipzz> has quit IRC (Ping timeout: 245 seconds)[10:29:09] *** slidercrank <slidercrank!~slidercra@ircpuzzles/2015/april-fools/fifth/slidercrank> has quit IRC (Ping timeout: 246 seconds)[10:32:19] <karalaine> never needed non-square matrix yet but I guess they their uses[10:32:27] <karalaine> *they have[10:34:16] <Foaly> either convention is mathematical[10:34:42] <Foaly> it just changes the order of operations[10:35:20] <ratchetfreak> it saves you the last row which is going to be 0,0,0,1 for any non-perspective affine transform[10:37:50] <karalaine> aye, I guess thats normally case with skinning/bone animation stuff? gotta study that stuff someday..[10:42:18] *** slvn_ <slvn_!~slvn_@c2s31-1-78-245-90-111.fbx.proxad.net> has joined ##OpenGL[10:54:23] *** grouse <grouse!~grouse@83-233-9-2.cust.bredband2.com> has joined ##OpenGL[10:56:21] <DarkUranium> Foaly, well, with the way they're typically written, it's (rows,cols).[10:56:29] <DarkUranium> Semantically, sure, either is mathematical.[10:56:41] <DarkUranium> But mathematics has notation, and notationally, it's (rows,cols).[10:56:48] *** immibis <immibis!~immibis@125.238.72.168> has quit IRC (Ping timeout: 246 seconds)[10:57:39] <Foaly> a row is a row and a column is a column[10:58:09] <Foaly> which meaning you attach to a row can differ though. it still stays a row[10:58:18] <Foaly> and all mathematical operations stay the same[11:02:29] <ratchetfreak> I can never keep that straight in my head[11:10:39] <DarkUranium> Foaly, the same notation & conventions apply to the operators, though.[11:11:18] <Foaly> how?[11:13:25] <DarkUranium> `A * B` on matrices does a specific thing.[11:13:31] <DarkUranium> Much like how it does a specific thing on integers.[11:13:35] <Foaly> yes. and it always does[11:13:38] <DarkUranium> At least in LA.[11:13:56] <Foaly> no matter whether you put the translation in the last row or column[11:14:30] *** gaulishcoin <gaulishcoin!~gaulishco@anice-652-1-117-10.w83-201.abo.wanadoo.fr> has joined ##OpenGL[11:17:04] *** GreyHound <GreyHound!~GreyHound@119.130.230.191> has quit IRC (Ping timeout: 272 seconds)[11:22:24] *** GreyHound <GreyHound!~GreyHound@116.21.2.254> has joined ##OpenGL[11:36:48] *** esrse <esrse!~nil@175.126.171.165> has quit IRC (Ping timeout: 250 seconds)[11:41:30] <snyp> imo, this should documented in a totally different way, without using 'rows' or 'columns'. Just say how the transformed basis vectors are to be specified, and that's it.[11:42:10] <snyp> Eliminates all this row/column confusion.[11:44:21] <ratchetfreak> or just move away from matrices and only use rotation+scale+translate expressed by quaternion+translate vector[11:46:44] *** mirage335 <mirage335!~mirage335@mirage335-base.soaringindustries.space> has quit IRC (Ping timeout: 252 seconds)[11:52:32] *** GreyHound <GreyHound!~GreyHound@116.21.2.254> has quit IRC (Ping timeout: 272 seconds)[11:52:35] *** mirage335 <mirage335!~mirage335@204.141.172.74> has joined ##OpenGL[11:56:31] *** Foaly <Foaly!~Foaly@ppp-88-217-49-61.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[12:05:19] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[12:07:00] *** Foaly <Foaly!~Foaly@ppp-88-217-49-61.dynamic.mnet-online.de> has joined ##OpenGL[12:13:32] *** hellozee <hellozee!~hellozee@116.73.36.92> has joined ##OpenGL[12:17:07] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Ping timeout: 245 seconds)[12:19:24] <DarkUranium> ratchetfreak, until you get to perspective stuff.[12:19:33] <DarkUranium> Maybe move away from matrices and towards tensors :D[12:28:33] *** Foaly <Foaly!~Foaly@ppp-88-217-49-61.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[12:30:43] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: This computer has gone to sleep)[12:40:06] *** snyp <snyp!~Snyp@202.83.17.8> has joined ##OpenGL[12:57:55] *** Elysion <Elysion!~Elysion@124-148-129-247.dyn.iinet.net.au> has quit IRC (Read error: Connection reset by peer)[13:12:29] *** groton <groton!~groton@unaffiliated/groton> has joined ##OpenGL[13:22:23] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[13:26:45] *** gb_away <gb_away!~hhhhh@190.18.120.141> has quit IRC (Read error: Connection reset by peer)[13:27:34] *** gb_away <gb_away!~hhhhh@190.18.120.141> has joined ##OpenGL[13:31:54] *** eubn <eubn!~eubn@host244-93-dynamic.46-79-r.retail.telecomitalia.it> has joined ##OpenGL[13:32:05] *** RobertPlummer <RobertPlummer!443276fd@gateway/web/freenode/ip.68.50.118.253> has joined ##OpenGL[13:32:49] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[13:33:35] *** notadeveloper <notadeveloper!notadevelo@unaffiliated/notadeveloper> has joined ##OpenGL[13:33:37] <notadeveloper> hi[13:33:50] <notadeveloper> I almost got panning working[13:34:34] <notadeveloper> when I pan up object moves down and to the right how can i constraint it to move to down ownly[13:34:36] <notadeveloper> only[13:34:39] <notadeveloper> omg[13:35:03] *** vmt <vmt!~vmt@pop.ax> has joined ##OpenGL[13:37:24] <RobertPlummer> In webgl2 I'm reading a Float32Array to a program to output a texture as gl_FLOAT which I use in another pogram as an input and then I want to readPixels on it to a Float32Array, and I keep getting -Infinity. What am I doing wrong? A script that reproduces the issue can be seen here: https://gist.github.com/robertleeplummerjr/0733b02a943908b25cf51d263d470c53[13:37:58] <karalaine> notadeveloper: how do you implement panning?[13:38:30] <RobertPlummer> The above is output from gpu.js, so it is a little deep, but it is generally well tested.[13:40:54] <notadeveloper> i got it[13:44:40] <RobertPlummer> I've been digging through unit tests on khronos' website to find a use case, and after hours, I found one: https://www.khronos.org/registry/webgl/sdk/tests/conformance2/extensions/ext-color-buffer-float.html?webglVersion=2&quiet=0&quick=1[13:44:57] <RobertPlummer> Where they use gl.readPixels with gl.RGBA and gl.FLOAT[13:45:35] <karalaine> RobertPlummer: there is some weird values, texImage2D border value is set from variable glVariable12 even when webgl spec says that it must not be other than 0[13:46:49] <RobertPlummer> karalaine: Looking. Ty for responding![13:47:50] *** eetsi123 <eetsi123!~eetu@91-152-205-56.elisa-laajakaista.fi> has quit IRC (Quit: WeeChat 2.4)[13:48:00] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has joined ##OpenGL[13:50:10] <RobertPlummer> karalaine: glVariable12 = 0 here[13:50:20] <RobertPlummer> The output is auto generated.[13:50:44] <karalaine> it was not for me when tried running[13:51:31] <karalaine> and it doesnt make any sense when its declared as const glVariable12 = gl.getAttribLocation(glVariable8, 'aTexCoord');[13:56:48] <karalaine> its also used as gl.vertexAttribPointer stride parameter, even weirder[13:57:33] <ratchetfreak> I guess it tries to auto match those[13:57:48] <ratchetfreak> but with a pretty bad blacklist of associations[13:59:37] *** RobertPlummer <RobertPlummer!443276fd@gateway/web/freenode/ip.68.50.118.253> has quit IRC (Ping timeout: 256 seconds)[14:04:38] *** KAHR-Alpha <KAHR-Alpha!~Alpha@2a01cb0d024a6600280ac0b2de1dfbec.ipv6.abo.wanadoo.fr> has joined ##OpenGL[14:06:49] <derhass> yeah, this code is pretty broken, it seems to assume that Location of `aTexCoord` is 0, otherwise it will break at differenct places[14:17:53] *** karab44 <karab44!~karab44@unaffiliated/karab44> has joined ##OpenGL[14:25:27] *** Foaly <Foaly!~Foaly@ppp-88-217-52-0.dynamic.mnet-online.de> has joined ##OpenGL[14:25:52] *** charlie5 <charlie5!~rod@pa49-180-139-151.pa.nsw.optusnet.com.au> has quit IRC (Ping timeout: 246 seconds)[14:30:25] *** Foaly <Foaly!~Foaly@ppp-88-217-52-0.dynamic.mnet-online.de> has quit IRC (Ping timeout: 246 seconds)[14:33:01] *** Foaly <Foaly!~Foaly@ppp-88-217-52-0.dynamic.mnet-online.de> has joined ##OpenGL[14:40:47] *** charlie5 <charlie5!~rod@pa49-180-139-151.pa.nsw.optusnet.com.au> has joined ##OpenGL[14:56:00] *** eubn <eubn!~eubn@host244-93-dynamic.46-79-r.retail.telecomitalia.it> has quit IRC (Remote host closed the connection)[15:08:16] *** notadeveloper <notadeveloper!notadevelo@unaffiliated/notadeveloper> has quit IRC ()[15:10:31] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has quit IRC (Ping timeout: 255 seconds)[15:25:08] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has joined ##OpenGL[15:25:33] *** RobertPlummer <RobertPlummer!443276fd@gateway/web/freenode/ip.68.50.118.253> has joined ##OpenGL[15:37:41] *** cfoch <cfoch!uid153227@gateway/web/irccloud.com/x-rbzicimaeedxxsyz> has joined ##OpenGL[15:38:42] *** kuntalm <kuntalm!~hellozee@116.73.36.92> has joined ##OpenGL[15:39:20] *** hellozee <hellozee!~hellozee@116.73.36.92> has quit IRC (Ping timeout: 250 seconds)[15:40:16] *** kuntalm is now known as hellozee[15:56:29] *** snyp <snyp!~Snyp@202.83.17.8> has quit IRC (Quit: WeeChat 2.4)[16:02:50] <bayoubengal> greetings. I'm puzzling over a problem. glMapBufferRange( GL_COPY_WRITE_BUFFER, 33554432, 50) is returning a null with an error state of GL_INVALID_OPERATION[16:03:29] <bayoubengal> I've gone through the reason for the failure in the docs but I can't prove that any of the conditions are true.[16:04:23] <bayoubengal> is there a way I can test the condition that GL_COPY_WRITE_BUFFER might already be mapped when the call is made?[16:05:11] <bayoubengal> the code is generally succeeding but fails predictably when a certain step is taken[16:05:24] *** groton <groton!~groton@unaffiliated/groton> has joined ##OpenGL[16:06:37] <bayoubengal> the line is preceded by glBindBuffer( GL_COPY_WRITE_BUFFER, 13 ) which succeeds[16:06:58] <Foaly> have you enabled debug output?[16:07:04] <Foaly> maybe that can give you some clues[16:07:06] <bayoubengal> no.[16:07:13] <bayoubengal> is there docs on that?[16:07:55] <Foaly> https://www.khronos.org/opengl/wiki/Debug_Output[16:08:51] *** xx2 <xx2!~xx2@212.253.8.72> has joined ##OpenGL[16:11:17] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[16:12:00] *** gareppa <gareppa!~gareppa@unaffiliated/gareppa> has joined ##OpenGL[16:12:09] <bayoubengal> tanx[16:13:37] *** gareppa <gareppa!~gareppa@unaffiliated/gareppa> has quit IRC (Remote host closed the connection)[16:18:08] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has joined ##OpenGL[16:26:26] *** DarkShin <DarkShin!~DarkShin@200-232-199-105.dsl.telesp.net.br> has joined ##OpenGL[16:28:41] <bayoubengal> crud. that feature does not exist on OSZ[16:28:46] <bayoubengal> OSX*[16:42:40] *** mukunda <mukunda!~mukunda@cpe-104-175-176-150.socal.res.rr.com> has joined ##OpenGL[16:45:15] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Remote host closed the connection)[16:46:20] *** RobertPlummer <RobertPlummer!443276fd@gateway/web/freenode/ip.68.50.118.253> has quit IRC (Quit: Page closed)[17:02:48] *** bayoubengal <bayoubengal!~bayoubeng@rrcs-50-84-94-202.sw.biz.rr.com> has quit IRC (Read error: Connection reset by peer)[17:02:57] *** bayoubengal <bayoubengal!~bayoubeng@rrcs-50-84-94-202.sw.biz.rr.com> has joined ##OpenGL[17:03:28] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[17:11:34] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Remote host closed the connection)[17:12:45] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[17:13:23] *** Lucretia <Lucretia!~Luke@pdpc/supporter/active/lucretia> has quit IRC (Quit: Konversation terminated!)[17:18:31] *** Lucretia <Lucretia!~Luke@pdpc/supporter/active/lucretia> has joined ##OpenGL[17:23:02] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[17:28:47] *** diwr <diwr!~diwr@unaffiliated/diwr> has joined ##OpenGL[17:34:07] *** Matthijs <Matthijs!~quassel@unaffiliated/matthijs> has quit IRC (Quit: *waves frantically*)[17:40:03] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[17:50:27] *** grouse <grouse!~grouse@83-233-9-2.cust.bredband2.com> has quit IRC (Quit: Leaving)[17:51:48] *** krystcich <krystcich!~krystcich@088156132205.dynamic-ww-04.vectranet.pl> has joined ##OpenGL[17:57:43] *** toy2tool <toy2tool!~toy2tool@unaffiliated/toy2tool> has joined ##OpenGL[17:59:32] <toy2tool> http://freenode.net/policy.shtml#aboutchannels --> 404[18:01:00] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Ping timeout: 246 seconds)[18:05:00] <toy2tool> http://www.youtube.com/watch?v=JNahswHfXfw&list=PLgRQpWV --> not available[18:20:15] *** xx2 <xx2!~xx2@212.253.8.72> has quit IRC (Quit: Leaving)[18:20:29] *** karab44 <karab44!~karab44@unaffiliated/karab44> has quit IRC ()[18:22:45] <bayoubengal> The problem I described earlier happens when the mapping operation is called the first time on a different GL context[18:23:11] *** DarkShin <DarkShin!~DarkShin@200-232-199-105.dsl.telesp.net.br> has quit IRC (Quit: Leaving)[18:24:04] <bayoubengal> I've verified that the necessary operation for the platform to switch the context has been done. I verified that GL_COPY_WRITE_BUFFERwas unmapped on the old context before it was switched out. Any thoughts on what might be the missing element here?[18:37:41] *** snyp <snyp!~Snyp@1.39.153.58> has joined ##OpenGL[18:45:03] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has joined ##OpenGL[18:46:21] *** ratchetfreak <ratchetfreak!c351a8d8@gateway/web/freenode/ip.195.81.168.216> has quit IRC (Ping timeout: 256 seconds)[18:47:19] *** Foaly <Foaly!~Foaly@ppp-88-217-52-0.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[19:01:26] *** diwr <diwr!~diwr@unaffiliated/diwr> has quit IRC (Remote host closed the connection)[19:14:57] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has quit IRC (Read error: Connection reset by peer)[19:27:31] *** slidercrank <slidercrank!~slidercra@ircpuzzles/2015/april-fools/fifth/slidercrank> has joined ##OpenGL[19:32:52] *** Foaly <Foaly!~Foaly@ppp-88-217-52-0.dynamic.mnet-online.de> has joined ##OpenGL[19:33:27] *** ratchet_freak <ratchet_freak!~ratchetfr@ptr-82s3g7l9r42569r41f4.18120a2.ip6.access.telenet.be> has joined ##OpenGL[19:40:11] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[19:48:42] *** LunarJetman2 <LunarJetman2!LunarJetma@5ec16e1a.skybroadband.com> has joined ##OpenGL[20:12:38] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has joined ##OpenGL[20:42:31] *** immibis <immibis!~immibis@125-238-72-168-fibre.sparkbb.co.nz> has joined ##OpenGL[20:45:46] *** toy2tool <toy2tool!~toy2tool@unaffiliated/toy2tool> has quit IRC (Quit: WeeChat 2.4)[20:56:32] *** ShadowIce <ShadowIce!~pyoro@unaffiliated/shadowice-x841044> has joined ##OpenGL[21:02:25] *** immibis <immibis!~immibis@125-238-72-168-fibre.sparkbb.co.nz> has quit IRC (Ping timeout: 255 seconds)[21:15:33] *** glYoda <glYoda!~MTLYoda@c-73-25-27-206.hsd1.or.comcast.net> has quit IRC (Quit: glYoda)[21:22:45] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[21:29:52] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has quit IRC (Read error: Connection reset by peer)[21:32:01] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has joined ##OpenGL[21:36:06] *** slvn_ <slvn_!~slvn_@c2s31-1-78-245-90-111.fbx.proxad.net> has quit IRC (Quit: Leaving)[21:43:33] *** BPL <BPL!~BPL@102.56.27.77.dynamic.reverse-mundo-r.com> has joined ##OpenGL[22:00:59] *** Foaly <Foaly!~Foaly@ppp-88-217-52-0.dynamic.mnet-online.de> has quit IRC (Quit: Now 'mid shadows deep falls blessed sleep.)[22:07:13] *** snyp <snyp!~Snyp@1.39.153.58> has quit IRC (Ping timeout: 255 seconds)[22:07:24] *** gaulishcoin <gaulishcoin!~gaulishco@anice-652-1-117-10.w83-201.abo.wanadoo.fr> has quit IRC (Remote host closed the connection)[22:14:20] *** ShadowIce <ShadowIce!~pyoro@unaffiliated/shadowice-x841044> has quit IRC (Quit: Leaving)[22:20:10] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Ping timeout: 272 seconds)[22:28:24] *** bayoubengal <bayoubengal!~bayoubeng@rrcs-50-84-94-202.sw.biz.rr.com> has quit IRC (Ping timeout: 244 seconds)[22:37:47] *** hellozee <hellozee!~hellozee@116.73.36.92> has quit IRC (Remote host closed the connection)[22:41:15] *** krystcich <krystcich!~krystcich@088156132205.dynamic-ww-04.vectranet.pl> has quit IRC (Quit: Going offline, see ya! (www.adiirc.com))[22:58:45] *** glYoda <glYoda!~MTLYoda@c-73-25-27-206.hsd1.or.comcast.net> has joined ##OpenGL[23:00:19] *** ejis <ejis!~ejis@63.237.233.8> has joined ##OpenGL[23:08:06] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has joined ##OpenGL[23:09:07] *** mandeep <mandeep!~mandeep@unaffiliated/mandeepb> has quit IRC (Remote host closed the connection)[23:13:01] *** ejis <ejis!~ejis@63.237.233.8> has left ##OpenGL ("Be back later...")[23:24:15] *** xx2 <xx2!~xx2@212.253.8.72> has joined ##OpenGL[23:27:14] *** RobertPlummer <RobertPlummer!443276fd@gateway/web/freenode/ip.68.50.118.253> has joined ##OpenGL[23:27:55] <RobertPlummer> What are the advantages of reading from a gl.FLOAT vs gl.UNSIGNED_BYTE?[23:30:43] *** stefkos <stefkos!~Pawel@79.184.73.24.ipv4.supernova.orange.pl> has quit IRC (Quit: Going offline, see ya! (www.adiirc.com))[23:31:30] <zy]x[yz> more precision?[23:33:17] <RobertPlummer> As I understand it, each value returned in the array, if using gl.FLOAT, you get a maximum of 16 bits, is that correct?[23:33:27] *** upgrdman <upgrdman!~upgrdman@blender/artist/upgrdman> has quit IRC (Quit: Leaving)[23:33:30] <derhass> no[23:33:49] <derhass> what are you even talking about?[23:35:44] <RobertPlummer> lol[23:35:58] <RobertPlummer> derhass: gpu.js again.[23:36:14] <RobertPlummer> I was looking for usage from khronos unit tests for gl.FLOAT[23:36:29] <RobertPlummer> and playing them back using glWiretap[23:37:00] <RobertPlummer> Trying to fix a use case in gpu.js, where you can define that you'd like to use "floatOutput"[23:37:43] <RobertPlummer> When I playback the values from a khronos unit test, I see how I can put a value up to 65506 in each returned value from the vec4[23:37:54] <RobertPlummer> the vec4 reads into the float32array in js, one to one.[23:38:37] <RobertPlummer> so if I define `vec4(65506, 65506, 65506, 65506);` in glsl, I get a maximum of that value back in javascript's Float32Array.[23:38:38] <derhass> well, there are some precision limits in ES2/webgl as always[23:38:58] <RobertPlummer> I was reading the documentation on it here: https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_color_buffer_float.txt[23:39:58] <RobertPlummer> And it states: "any sized | 16 < R | 16 < G | 16 < B | 16 < A | RGBA32F ", and I thought it was talking about bytes.[23:40:37] <RobertPlummer> Because a 32 bit float can be 3.402823466e+38 or intBitsToFloat(2139095039)[23:40:42] <RobertPlummer> maximum[23:42:07] <RobertPlummer> derhass: So I'm bringing it up because I want to provide the use case in gpu.js to handle floats correctly. I believe the feature essentially kicks the kernel into 16 bit mode, which performs what seems like quite a bit less work.[23:45:42] <RobertPlummer> derhass: nm. I'm dead wrong.[23:45:56] <RobertPlummer> I must have missconfigured it.[23:46:04] <RobertPlummer> I can read 32 bits fine it seems![23:47:02] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has quit IRC (Quit: My MacBook Pro has gone to sleep. ZZZzzz…)[23:49:25] *** davr0s <davr0s!~textual@host81-147-72-11.range81-147.btcentralplus.com> has joined ##OpenGL[23:50:17] <RobertPlummer> https://gist.github.com/robertleeplummerjr/3707145dce4395c84eae06095778cb60 shows it with a bunch of noise[23:50:41] <RobertPlummer> line 390 is where it gets important.