July 3, 2019 
< | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | >
July 3, 2019 [00:12:01] *** Lord-Kam_ <Lord-Kam_!~Lord-Kami@pc-250-87-104-200.cm.vtr.net> has joined ##OpenGL[00:13:24] *** Lord-Kamina <Lord-Kamina!~Lord-Kami@pc-250-87-104-200.cm.vtr.net> has quit IRC (Ping timeout: 268 seconds)[00:23:40] *** gaulishcoin <gaulishcoin!~gaulishco@anice-652-1-21-234.w83-201.abo.wanadoo.fr> has quit IRC (Quit: Leaving)[00:26:04] *** BPL <BPL!~BPL@102.56.27.77.dynamic.reverse-mundo-r.com> has joined ##OpenGL[00:28:34] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has quit IRC (Read error: Connection reset by peer)[00:32:10] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[00:37:57] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has quit IRC (Ping timeout: 245 seconds)[01:02:50] *** CoolerZ <CoolerZ!~coolerext@14.139.38.135> has quit IRC (Remote host closed the connection)[01:06:03] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Remote host closed the connection)[01:07:45] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[01:10:41] *** glYoda <glYoda!~kristinam@c-73-25-27-206.hsd1.or.comcast.net> has joined ##OpenGL[01:12:31] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Ping timeout: 244 seconds)[01:20:00] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Ping timeout: 268 seconds)[01:23:42] *** ratchetfreak <ratchetfreak!~ratchetfr@d51A4BEAF.access.telenet.be> has quit IRC (Ping timeout: 268 seconds)[01:33:33] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[01:37:04] *** BPL <BPL!~BPL@102.56.27.77.dynamic.reverse-mundo-r.com> has quit IRC (Quit: Leaving)[01:45:01] *** hellozee <hellozee!~hellozee@2409:4066:13:994:2c88:ea58:15e2:bc3f> has joined ##OpenGL[01:51:16] *** LunarJetman <LunarJetman!LunarJetma@94.14.216.120> has quit IRC (Ping timeout: 244 seconds)[02:03:44] *** KAHR-Alpha <KAHR-Alpha!~Alpha@lfbn-rei-1-47-231.w90-54.abo.wanadoo.fr> has quit IRC (Ping timeout: 272 seconds)[02:16:07] *** learningc <learningc!~learningc@mti-37-145.tm.net.my> has joined ##OpenGL[02:16:17] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[02:20:49] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Ping timeout: 248 seconds)[02:22:10] *** jbracey <jbracey!uid371587@gateway/web/irccloud.com/x-upqhocrbxbqsrsvd> has joined ##OpenGL[02:24:31] *** m712 <m712!~annoying@unaffiliated/thefam> has quit IRC (Ping timeout: 264 seconds)[02:25:26] *** m712 <m712!~annoying@unaffiliated/thefam> has joined ##OpenGL[02:27:57] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Ping timeout: 245 seconds)[02:35:50] *** qeed <qeed!~qeed@cpe-172-248-136-12.socal.res.rr.com> has joined ##OpenGL[02:38:17] *** wildlander <wildlander!~wildlande@unaffiliated/wildlander> has quit IRC (Ping timeout: 244 seconds)[02:42:13] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[02:45:10] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[03:03:31] *** fatalhalt <fatalhalt!~fatalhalt@c-67-163-60-93.hsd1.il.comcast.net> has joined ##OpenGL[03:12:10] *** groton <groton!~groton@unaffiliated/groton> has joined ##OpenGL[03:17:42] *** ephemer0l is now known as GeneralDiscourse[03:22:07] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Remote host closed the connection)[03:22:56] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[03:27:32] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Ping timeout: 245 seconds)[03:39:15] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Ping timeout: 244 seconds)[03:46:38] *** Singmyr <Singmyr!~Singmyr@c83-253-123-62.bredband.comhem.se> has quit IRC (Quit: My MacBook has gone to sleep. ZZZzzz…)[03:48:07] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[03:48:16] *** mukunda_ <mukunda_!mukunda@adsl-68-19-151-204.jan.bellsouth.net> has joined ##OpenGL[03:49:53] *** mukunda <mukunda!~mukunda@68.19.151.178> has quit IRC (Ping timeout: 248 seconds)[03:51:19] *** mukunda_ <mukunda_!mukunda@adsl-68-19-151-204.jan.bellsouth.net> has quit IRC (Read error: Connection reset by peer)[03:51:36] *** mukunda <mukunda!~mukunda@adsl-68-19-151-204.jan.bellsouth.net> has joined ##OpenGL[03:55:19] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[03:56:17] *** vroom <vroom!~vroom@unaffiliated/vroom> has quit IRC (Ping timeout: 245 seconds)[04:04:12] *** davr0s_ <davr0s_!~davr0s@host109-149-99-217.range109-149.btcentralplus.com> has quit IRC (Ping timeout: 245 seconds)[04:28:10] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Remote host closed the connection)[04:31:59] *** davr0s <davr0s!~davr0s@host109-149-99-217.range109-149.btcentralplus.com> has joined ##OpenGL[04:33:09] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[04:38:16] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has quit IRC (Ping timeout: 272 seconds)[04:40:44] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has quit IRC (Quit: Leaving)[04:48:22] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Ping timeout: 245 seconds)[04:57:28] *** dansho_ <dansho_!~dansho4@71-84-161-204.dhcp.astr.or.charter.com> has joined ##OpenGL[04:57:31] *** dansho <dansho!~dansho4@71-84-161-204.dhcp.astr.or.charter.com> has quit IRC (Read error: Connection reset by peer)[04:58:47] *** vroom <vroom!~vroom@unaffiliated/vroom> has joined ##OpenGL[05:04:20] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[05:08:29] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: This computer has gone to sleep)[05:10:38] *** karab44 <karab44!~karab44@unaffiliated/karab44> has joined ##OpenGL[05:19:43] *** gehn <gehn!gehn@gateway/vpn/privateinternetaccess/gehn> has quit IRC (Quit: Leaving)[06:41:42] *** halbeno <halbeno!~halbeno@d50-93-37-115.abhsia.telus.net> has quit IRC (Ping timeout: 245 seconds)[06:42:01] *** halbeno <halbeno!~halbeno@d50-93-37-115.abhsia.telus.net> has joined ##OpenGL[06:43:42] *** Elysion <Elysion!~Elysion@ppp118-210-175-34.adl-adc-lon-bras34.tpg.internode.on.net> has joined ##OpenGL[06:44:16] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Quit: Leaving.)[06:45:29] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[06:47:31] *** fatalhalt <fatalhalt!~fatalhalt@c-67-163-60-93.hsd1.il.comcast.net> has quit IRC (Quit: fatal halt)[06:50:11] *** rizzo <rizzo!~RizzoTheR@dyndsl-037-138-065-037.ewe-ip-backbone.de> has joined ##OpenGL[06:53:10] *** lilabsence <lilabsence!~RizzoTheR@dyndsl-037-138-083-006.ewe-ip-backbone.de> has quit IRC (Ping timeout: 272 seconds)[07:25:22] *** glYoda <glYoda!~kristinam@c-73-25-27-206.hsd1.or.comcast.net> has quit IRC (Quit: glYoda)[07:25:58] *** glYoda <glYoda!~kristinam@c-73-25-27-206.hsd1.or.comcast.net> has joined ##OpenGL[07:37:09] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Quit: Leaving.)[07:41:12] *** immibis <immibis!~immibis@222-153-90-196-fibre.sparkbb.co.nz> has joined ##OpenGL[07:43:08] *** shhuun_ <shhuun_!~shun@ip-213-127-98-128.ip.prioritytelecom.net> has joined ##OpenGL[07:49:19] *** shhuun_ <shhuun_!~shun@ip-213-127-98-128.ip.prioritytelecom.net> has quit IRC (Ping timeout: 244 seconds)[08:02:11] *** codeandk1y <codeandk1y!~codeandke@unaffiliated/codeandkey> has joined ##OpenGL[08:02:15] *** codeandk1y <codeandk1y!~codeandke@unaffiliated/codeandkey> has quit IRC (Client Quit)[08:04:48] *** kraft <kraft!kraft@gateway/shell/blinkenshell.org/x-ayiapqedpasxrvln> has quit IRC (Remote host closed the connection)[08:09:09] *** tab-key <tab-key!~mantra@2601:601:c980:8fd:9529:9608:3123:369d> has quit IRC (Read error: Connection reset by peer)[08:12:38] *** stefkos <stefkos!~Pawel@79.184.41.217.ipv4.supernova.orange.pl> has joined ##OpenGL[08:15:52] *** dansho_ <dansho_!~dansho4@71-84-161-204.dhcp.astr.or.charter.com> has quit IRC (Ping timeout: 245 seconds)[08:19:19] *** slvn_ <slvn_!~slvn_@2a01:e34:ef55:a6f0:486b:2857:9318:d80e> has joined ##OpenGL[08:25:59] *** karab44 <karab44!~karab44@unaffiliated/karab44> has quit IRC ()[08:26:40] *** hk239 <hk239!~d@94.22.235.202> has quit IRC (Remote host closed the connection)[08:27:01] *** hk239 <hk239!~d@94.22.235.202> has joined ##OpenGL[08:33:32] *** kraft <kraft!~kraft@gateway/shell/blinkenshell.org/x-dasbmehashmlygew> has joined ##OpenGL[08:46:16] *** glYoda <glYoda!~kristinam@c-73-25-27-206.hsd1.or.comcast.net> has quit IRC (Quit: glYoda)[08:47:02] *** glYoda <glYoda!~kristinam@c-73-25-27-206.hsd1.or.comcast.net> has joined ##OpenGL[08:50:10] *** hellozee <hellozee!~hellozee@2409:4066:13:994:2c88:ea58:15e2:bc3f> has quit IRC (Remote host closed the connection)[08:50:31] *** hellozee <hellozee!~hellozee@2409:4066:13:994:2c88:ea58:15e2:bc3f> has joined ##OpenGL[08:55:24] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has quit IRC (Read error: Connection reset by peer)[08:57:31] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has joined ##OpenGL[09:41:37] *** Guest34477 <Guest34477!~Aster@c80-217-128-16.bredband.comhem.se> has quit IRC (Changing host)[09:41:37] *** Guest34477 <Guest34477!~Aster@april-fools/2013/ninth/aster> has joined ##OpenGL[09:41:43] *** Guest34477 is now known as Aster[09:57:32] *** Singmyr <Singmyr!~Singmyr@c83-253-123-62.bredband.comhem.se> has joined ##OpenGL[09:58:12] *** quadsar <quadsar!~quadsar@unaffiliated/quadsar> has quit IRC (Read error: Connection reset by peer)[09:58:52] *** rizzo <rizzo!~RizzoTheR@dyndsl-037-138-065-037.ewe-ip-backbone.de> has quit IRC (Ping timeout: 246 seconds)[10:01:56] *** ratchetfreak <ratchetfreak!c351a8d8@195.81.168.216> has joined ##OpenGL[10:02:19] *** Singmyr <Singmyr!~Singmyr@c83-253-123-62.bredband.comhem.se> has quit IRC (Ping timeout: 268 seconds)[10:04:10] *** vroom <vroom!~vroom@unaffiliated/vroom> has quit IRC (Ping timeout: 244 seconds)[10:07:19] *** vroom <vroom!~vroom@unaffiliated/vroom> has joined ##OpenGL[10:41:32] *** ClaudiusMaximus <ClaudiusMaximus!~claude@196.153.198.146.dyn.plus.net> has joined ##OpenGL[10:41:37] *** ClaudiusMaximus <ClaudiusMaximus!~claude@196.153.198.146.dyn.plus.net> has quit IRC (Changing host)[10:41:37] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has joined ##OpenGL[10:52:46] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has quit IRC (Ping timeout: 246 seconds)[10:54:34] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has joined ##OpenGL[11:05:43] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[11:09:00] *** Singmyr <Singmyr!~Singmyr@c83-253-123-62.bredband.comhem.se> has joined ##OpenGL[11:11:02] *** jbracey <jbracey!uid371587@gateway/web/irccloud.com/x-upqhocrbxbqsrsvd> has quit IRC (Quit: Connection closed for inactivity)[11:21:53] *** pa <pa!~pa@unaffiliated/pa> has quit IRC (Ping timeout: 258 seconds)[11:26:23] *** shhuun_ <shhuun_!~shun@185.56.227.4> has joined ##OpenGL[11:31:29] *** random_yanek <random_yanek!~random_ya@host-89-230-169-246.dynamic.mm.pl> has quit IRC (Ping timeout: 244 seconds)[11:32:39] *** pa <pa!~pa@unaffiliated/pa> has joined ##OpenGL[11:48:48] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has quit IRC (Ping timeout: 245 seconds)[11:48:49] *** learningc <learningc!~learningc@mti-37-145.tm.net.my> has quit IRC (Ping timeout: 248 seconds)[11:50:13] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has joined ##OpenGL[11:53:32] *** random_yanek <random_yanek!~random_ya@host-89-230-169-75.dynamic.mm.pl> has joined ##OpenGL[12:04:17] *** moser <moser!~moser@219.137.60.143> has joined ##OpenGL[12:07:33] *** moser_ <moser_!~moser@113.119.56.246> has quit IRC (Ping timeout: 245 seconds)[12:08:23] *** shhuun_ <shhuun_!~shun@185.56.227.4> has quit IRC (Ping timeout: 245 seconds)[12:19:49] *** learningc <learningc!~learningc@58.71.209.43> has joined ##OpenGL[12:31:51] *** Kingsqueee <Kingsqueee!~kingsquee@node-1w7jr9qmxqrpow98mke9t5qou.ipv6.telus.net> has quit IRC (Quit: https://i.imgur.com/qicT3GK.gif)[12:40:16] *** Twipply <Twipply!~Twipply@unaffiliated/twipply> has joined ##OpenGL[13:01:39] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[13:17:10] *** Singmyr <Singmyr!~Singmyr@c83-253-123-62.bredband.comhem.se> has quit IRC (Quit: My MacBook has gone to sleep. ZZZzzz…)[13:20:57] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has quit IRC (Quit: This computer has gone to sleep)[13:33:13] *** ratchetfreak <ratchetfreak!c351a8d8@195.81.168.216> has quit IRC (Remote host closed the connection)[13:40:56] *** ratchetfreak <ratchetfreak!c351a8d8@195.81.168.216> has joined ##OpenGL[13:42:43] *** ville <ville!~ville@212-149-214-47.bb.dnainternet.fi> has quit IRC (Ping timeout: 244 seconds)[13:45:24] *** shhuun_ <shhuun_!~shun@185.56.227.4> has joined ##OpenGL[13:46:24] *** drewbarbs <drewbarbs!~drewbarbs@2601:14a:700:eaa1:b4d1:3650:4556:2d71> has quit IRC (Quit: ZNC 1.6.2 - http://znc.in)[13:47:27] *** drewbarbs <drewbarbs!~drewbarbs@2601:14a:700:eaa1:b4d1:3650:4556:2d71> has joined ##OpenGL[14:16:18] *** immibis <immibis!~immibis@222-153-90-196-fibre.sparkbb.co.nz> has quit IRC (Ping timeout: 244 seconds)[14:47:35] *** ville <ville!~ville@62-113-181-125.bb.dnainternet.fi> has joined ##OpenGL[14:53:30] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has quit IRC (Quit: ->)[15:03:43] *** ville <ville!~ville@62-113-181-125.bb.dnainternet.fi> has quit IRC (Ping timeout: 246 seconds)[15:09:00] *** VladTheImplier <VladTheImplier!~manjaro-b@212.111.240.218> has joined ##OpenGL[15:10:43] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has quit IRC (Ping timeout: 246 seconds)[15:10:55] *** quadsar <quadsar!~quadsar@unaffiliated/quadsar> has joined ##OpenGL[15:19:17] *** ClaudiusMaximus <ClaudiusMaximus!~claude@196.153.198.146.dyn.plus.net> has joined ##OpenGL[15:19:18] *** ClaudiusMaximus <ClaudiusMaximus!~claude@196.153.198.146.dyn.plus.net> has quit IRC (Changing host)[15:19:18] *** ClaudiusMaximus <ClaudiusMaximus!~claude@unaffiliated/claudiusmaximus> has joined ##OpenGL[15:22:10] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[15:22:58] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has joined ##OpenGL[15:33:10] *** hellozee <hellozee!~hellozee@2409:4066:13:994:2c88:ea58:15e2:bc3f> has quit IRC (Ping timeout: 252 seconds)[15:41:39] *** karab44 <karab44!~karab44@unaffiliated/karab44> has joined ##OpenGL[15:42:42] *** hellozee <hellozee!~hellozee@2409:4066:13:994:2c88:ea58:15e2:bc3f> has joined ##OpenGL[15:45:43] *** learningc <learningc!~learningc@58.71.209.43> has quit IRC (Ping timeout: 246 seconds)[15:55:02] *** mukunda <mukunda!~mukunda@adsl-68-19-151-204.jan.bellsouth.net> has quit IRC (Ping timeout: 245 seconds)[16:14:05] *** learningc <learningc!~learningc@58.71.209.43> has joined ##OpenGL[16:36:26] *** ville <ville!~ville@188-67-23-147.bb.dnainternet.fi> has joined ##OpenGL[16:36:26] *** madsy_ <madsy_!~madsy@fu/coder/madsy> has quit IRC (Read error: Connection reset by peer)[16:36:46] *** codeandk1y <codeandk1y!~codeandke@c12-pool2-01.nat.iastate.edu> has joined ##OpenGL[16:36:47] *** codeandk1y <codeandk1y!~codeandke@c12-pool2-01.nat.iastate.edu> has quit IRC (Client Quit)[16:37:49] *** madsy_ <madsy_!~madsy@cm-84.215.249.56.getinternet.no> has joined ##OpenGL[16:37:49] *** madsy_ <madsy_!~madsy@cm-84.215.249.56.getinternet.no> has quit IRC (Changing host)[16:37:49] *** madsy_ <madsy_!~madsy@fu/coder/madsy> has joined ##OpenGL[16:47:22] *** borkr <borkr!~borkr@static243-215-65.mimer.net> has joined ##OpenGL[16:55:18] *** stefkos <stefkos!~Pawel@79.184.41.217.ipv4.supernova.orange.pl> has quit IRC (Remote host closed the connection)[16:58:53] *** Singmyr <Singmyr!~Singmyr@c83-253-123-62.bredband.comhem.se> has joined ##OpenGL[16:59:44] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[17:08:26] *** ville <ville!~ville@188-67-23-147.bb.dnainternet.fi> has quit IRC (Ping timeout: 268 seconds)[17:13:27] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has left ##OpenGL ("Leaving")[17:24:59] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has joined ##OpenGL[17:28:41] *** Vasco_O is now known as Vasco[17:41:09] <pa> hi[17:41:11] <pa> question[17:41:42] <pa> do modern GPUs optimize in some way the modelview * projection result?[17:41:59] <zid> how does it knwo what those are?[17:42:24] <pa> in other words, would it be possible to avoid precomputing that matrix, and let the shader do it, and hope/tell to it somehow that it's the same for a whole vbo[17:42:45] <pa> so that subsequent vertex shader instances do not have to recompute that?[17:43:03] <zid> you can't get a speedup from your geometry not changing between frames[17:43:08] <zid> because you still had to calculate it for the first frame[17:43:11] <derhass> you cannnot have pre-computing and not-pre-computing it at the same time[17:43:14] <zid> at best it's a power saving[17:43:34] <zid> either you have the performance to calculate all your geometry moving every frame or you don't[17:43:36] *** gehn <gehn!gehn@gateway/vpn/privateinternetaccess/gehn> has joined ##OpenGL[17:43:43] *** mefesto <mefesto!~user@107.145.49.162> has joined ##OpenGL[17:44:00] <pa> what i mean is: is there a way to tell the gpu that, for a draw call, modelview and projection do not change?[17:44:20] <derhass> that is what the term "uniform" _literally_ means[17:44:20] <pa> so that the modelview * projection done in main() can be cached?[17:44:25] <zid> You need to explain what you think you could gain from it[17:44:31] <zid> because there isn't anything I can think of[17:44:41] <zid> then maybe we could explain how to gain what you want, without your imagined method[17:44:55] <zid> ,xy[17:45:10] <pa> well i would expect to save one matrix multiplication per shader instance[17:45:13] <derhass> pa: that's not how GPUs work[17:45:14] <pa> or[17:45:15] <pa> per vertex[17:45:24] <mefesto> calculate the MVP on the cpu, set a uniform, issue draw call[17:45:57] <zid> pa: Think with me, that assumes none of your geometry has moved between frames, right?[17:46:02] <gehn> er, except that uniforms can and do change[17:46:06] <zid> everything is all static, no camera move or anything[17:46:08] <gehn> especially the "model" part of MVP[17:46:18] <derhass> gehn: not during a draw call[17:46:32] <pa> zid, no, geometry can be moved, camera too.[17:46:44] <gehn> derhass, ok but you didn't add that clarification earlier[17:46:52] <gehn> you just confirmed that "uniform literally means does not change"[17:46:59] <pa> that's the point multiplying the matrices togeter, otherwise i could sure precalculate mvp once for the whole program[17:47:14] <derhass> in the context of pa directly mentioning a draw call right in the statement my answer was referring to[17:47:17] <zid> pa: So you can cache them, but they can change and nothing breaks? okay man[17:47:23] <mefesto> i thought it was given that we were talking about a "draw call"[17:47:33] <pa> ok let me rephrase[17:48:44] <pa> current status: VBO with its own modelview matrix. Camera with its own modelview matrix. Frame X. Option a): shader only has uniform mat4 mvp. Mvp is calculated, uniform is set, draw call is issued[17:49:02] <zid> The *only* way the cached result is valid, is if they don't change. If they don't change you can just pre-compute everything on the cpu once, upload it, and the gpu has nearly 0 load inside the shaders every frame. If they *can* change, there are frames where they *do* change, and you need the gpu to do that work.[17:49:14] <zid> Or someone to do it, anyway[17:49:26] <zid> you can't *not* do it in those cases, so your framerate is limited by the frames where it *does* happen[17:49:35] <pa> option b) shader has modelview and projection matrices. uniforms are set, draw call is issued, the shader does (modelview * projection) * gl_Vertex[17:50:14] <derhass> pa: b is broken in mutliplication order[17:50:25] <pa> derhass: right[17:50:42] <pa> so projection * modelview * vertex[17:50:51] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[17:51:04] <derhass> however, nowadays one often uses projection*view premultiplied, and model matrix separately[17:51:08] <pa> ok, anyway, since projection and modelview are uniforms, shouldnt the shader be allowed to optimize that multiplication?[17:51:13] <ratchetfreak> in option a you know exactly when and where the matrix multiplication happens[17:51:15] <zid> I don't get why you'd want the framerate to spike while the camera isn't moving[17:51:35] <zid> (by 0.01%)[17:51:52] <pa> zid: in my case, i had instancing in mind[17:52:05] <pa> and i would like to send in an array of modelview matrices[17:52:06] <ratchetfreak> in option b that multiplication can happen either once on the cpu before the actual draw in the driver, once per wavefront in the gpu or once per vertex in the gpu[17:52:10] <derhass> pa: the shader won't. the driver is not forbidden to do any kind of optimizations on that[17:53:07] <ratchetfreak> so yes the driver is allowed to extract the uniform-only calculations and front load them on the cpu[17:53:17] <pa> derhass: but my point is: couldn't it? after all, the first shader run has to compute it, but subsequent vertices could reuse the same result, coudlnt they? same goes for all uniform results[17:53:39] *** learningc <learningc!~learningc@58.71.209.43> has quit IRC (Remote host closed the connection)[17:53:58] <derhass> pa: there is no _first_ shader run. there are a couple of thousand, and some more ten-thousend instances intertwined with that[17:54:06] *** learningc <learningc!~learningc@58.71.209.43> has joined ##OpenGL[17:54:32] <pa> werent vertex shaders sequential or something?[17:54:42] <DarkUranium> That would be incredibly slow.[17:54:42] <derhass> no[17:54:45] <ratchetfreak> they are executed in parallel[17:54:50] <DarkUranium> Modern GPUs have millions of vertices.[17:54:54] <DarkUranium> s/GPUs/games/[17:54:58] <pa> ok[17:55:45] <pa> so then i should consider having two separate shader codepath, one for non-instanced calls, and one for instanced calls, where i shouldnt precompute mvp per each instance, right?[17:56:08] <pa> or maybe i shouldnt precompute mvp at all, and do it in the shader[17:56:58] <derhass> seriously, you might simply try to optimize on the very wrong end here[17:58:17] <pa> derhass: are you suggesting to simply do model * viewProjection in the shader?[17:58:27] <pa> or the other way around, again[17:58:41] *** ville <ville!~ville@212-149-214-47.bb.dnainternet.fi> has joined ##OpenGL[17:59:22] <derhass> actually, it is cheaper to do two matrix-vector multiplications than one matrix-matrix and matrix-vector one[18:01:41] <derhass> pa: but let me ask differently: how do you get a way with mvp pre-multiplied? don't you do any lighting?[18:01:54] <derhass> *away[18:02:30] <pa> hmm.. yes i think there's lighting, but i see the mvp matrix passed in[18:02:45] <pa> and i was wondering if it shouldn't be split[18:03:23] *** mukunda <mukunda!~mukunda@adsl-68-19-151-204.jan.bellsouth.net> has joined ##OpenGL[18:03:37] *** pie__ <pie__!~pie_@unaffiliated/pie-/x-0787662> has quit IRC (Ping timeout: 246 seconds)[18:03:46] <derhass> well, there are also precision issues with the different options (although one should not over-estimate these either)[18:13:56] *** rizzo <rizzo!~RizzoTheR@dyndsl-037-138-065-037.ewe-ip-backbone.de> has joined ##OpenGL[18:17:03] *** ratchetfreak <ratchetfreak!c351a8d8@195.81.168.216> has quit IRC (Ping timeout: 260 seconds)[18:23:29] *** KAHR-Alpha <KAHR-Alpha!~Alpha@lfbn-rei-1-47-231.w90-54.abo.wanadoo.fr> has joined ##OpenGL[18:29:50] *** zagabar <zagabar!~zagabar@unaffiliated/zagabar> has quit IRC (Ping timeout: 272 seconds)[18:32:33] *** shhuun_ <shhuun_!~shun@185.56.227.4> has quit IRC (Ping timeout: 248 seconds)[18:40:50] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has quit IRC (Ping timeout: 244 seconds)[18:43:57] *** LunarJetman <LunarJetman!LunarJetma@94.14.216.120> has joined ##OpenGL[18:48:31] *** groton <groton!~groton@unaffiliated/groton> has joined ##OpenGL[18:54:57] *** KAHR-Alpha <KAHR-Alpha!~Alpha@lfbn-rei-1-47-231.w90-54.abo.wanadoo.fr> has quit IRC (Ping timeout: 248 seconds)[18:56:01] *** ratchetfreak <ratchetfreak!~ratchetfr@d51A4BEAF.access.telenet.be> has joined ##OpenGL[18:57:10] *** groton <groton!~groton@unaffiliated/groton> has quit IRC (Quit: groton)[19:05:02] *** learningc <learningc!~learningc@58.71.209.43> has quit IRC (Ping timeout: 245 seconds)[19:05:28] *** VladTheImplier <VladTheImplier!~manjaro-b@212.111.240.218> has quit IRC (Ping timeout: 245 seconds)[19:06:10] *** learningc <learningc!~learningc@58.71.209.43> has joined ##OpenGL[19:09:08] *** johnjay <johnjay!~pi@38.120.10.99> has quit IRC (Read error: Connection reset by peer)[19:10:24] *** zagabar <zagabar!~zagabar@240.124.218.139.dyn.wbroadband.net.au> has joined ##OpenGL[19:10:24] *** zagabar <zagabar!~zagabar@240.124.218.139.dyn.wbroadband.net.au> has quit IRC (Changing host)[19:10:24] *** zagabar <zagabar!~zagabar@unaffiliated/zagabar> has joined ##OpenGL[19:12:53] *** johnjay <johnjay!~pi@38.120.10.99> has joined ##OpenGL[19:16:17] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Ping timeout: 248 seconds)[19:22:23] *** johnjay <johnjay!~pi@38.120.10.99> has quit IRC (Read error: Connection reset by peer)[19:25:40] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has quit IRC (Read error: Connection reset by peer)[19:27:41] *** Nicmavr <Nicmavr!~Nicmavr@unaffiliated/nicmavr> has joined ##OpenGL[19:27:47] *** johnjay <johnjay!~pi@38.120.10.99> has joined ##OpenGL[19:27:57] *** dansho_ <dansho_!~dansho4@71-84-161-204.dhcp.astr.or.charter.com> has joined ##OpenGL[19:31:37] *** cshzg <cshzg!~dietary@181.53.12.20> has joined ##OpenGL[19:42:10] *** DrBenway <DrBenway!~DrBenway@modemcable080.164-57-74.mc.videotron.ca> has joined ##OpenGL[19:45:29] *** zid <zid!zid@muf.violates.me> has quit IRC (Read error: No route to host)[20:08:46] *** karab44 <karab44!~karab44@unaffiliated/karab44> has quit IRC ()[20:10:56] *** cshzg <cshzg!~dietary@181.53.12.20> has quit IRC (Read error: Connection reset by peer)[20:12:33] *** learningc <learningc!~learningc@58.71.209.43> has quit IRC (Ping timeout: 245 seconds)[20:12:41] *** iuouo <iuouo!54f80483@dsl-olubng11-54f804-131.dhcp.inet.fi> has joined ##OpenGL[20:37:25] *** lucid-lullaby <lucid-lullaby!~lucid-lul@66.115.169.209> has joined ##OpenGL[20:45:37] *** hellozee <hellozee!~hellozee@2409:4066:13:994:2c88:ea58:15e2:bc3f> has quit IRC (Ping timeout: 276 seconds)[20:58:44] *** KAHR-Alpha <KAHR-Alpha!~Alpha@lfbn-rei-1-47-231.w90-54.abo.wanadoo.fr> has joined ##OpenGL[21:00:03] *** glYoda <glYoda!~kristinam@c-73-25-27-206.hsd1.or.comcast.net> has quit IRC (Quit: glYoda)[21:00:16] *** borkr <borkr!~borkr@static243-215-65.mimer.net> has quit IRC (Remote host closed the connection)[21:20:21] *** millerti <millerti!~millerti@cpe-66-24-91-119.stny.res.rr.com> has joined ##OpenGL[21:23:55] *** mefesto <mefesto!~user@107.145.49.162> has quit IRC (Quit: ERC (IRC client for Emacs 26.1))[21:25:17] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[21:43:39] *** gehn <gehn!gehn@gateway/vpn/privateinternetaccess/gehn> has quit IRC (Quit: Leaving)[21:46:41] *** krystcich <krystcich!~krystcich@088156132216.dynamic-ww-04.vectranet.pl> has joined ##OpenGL[21:56:22] *** ImQ009 <ImQ009!~ImQ009@unaffiliated/imq009> has quit IRC (Quit: Leaving)[21:57:09] *** slvn_ <slvn_!~slvn_@2a01:e34:ef55:a6f0:486b:2857:9318:d80e> has quit IRC (Remote host closed the connection)[21:58:24] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has quit IRC (Read error: Connection reset by peer)[21:58:45] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[22:05:21] *** Folkol <Folkol!~Folkol@81-234-41-229-no522.tbcn.telia.com> has quit IRC (Ping timeout: 248 seconds)[22:17:26] *** slime <slime!~slime73@blk-215-81-93.eastlink.ca> has joined ##OpenGL[23:26:08] *** powerbit <powerbit!~powerbit@5-15-26-55.residential.rdsnet.ro> has quit IRC (Quit: Going offline, see ya! (www.adiirc.com))[23:29:24] *** krystcich <krystcich!~krystcich@088156132216.dynamic-ww-04.vectranet.pl> has quit IRC (Quit: Going offline, see ya! (www.adiirc.com))[23:30:07] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has quit IRC (Remote host closed the connection)[23:30:41] *** zalt <zalt!~lambda443@unaffiliated/lambda443> has joined ##OpenGL[23:38:51] *** wavelength <wavelength!~wl@pool-98-111-145-218.phlapa.fios.verizon.net> has left ##OpenGL[23:39:00] *** wavelength <wavelength!~wl@pool-98-111-145-218.phlapa.fios.verizon.net> has joined ##OpenGL[23:53:50] *** Neomex <Neomex!~Neomex@189.214.0.120.cable.dyn.cableonline.com.mx> has joined ##OpenGL[23:55:07] <Neomex> what could be causing white lines here? i thought it is texture wrap mode, but its set to repeat: https://i.imgur.com/xjjYvOs.png[23:55:28] <Neomex> its a single mesh which has multiple quads drawn and then is transformed to isometric[23:55:48] <Neomex> could mip maps fix it? aa? not sure how to approach it