November 19, 2014 
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November 19, 2014 [00:03:40] *** mat^2 has joined ##OpenGL[00:04:19] *** TheBunnyZOS has quit IRC[00:10:23] *** centrinia has joined ##OpenGL[00:10:32] *** RyanPridgeon has joined ##OpenGL[00:13:57] *** paperManu_ has joined ##OpenGL[00:14:15] *** jdolan has quit IRC[00:16:19] *** paperManu_ has quit IRC[00:16:37] *** paperManu_ has joined ##OpenGL[00:17:27] *** ShadowIce has quit IRC[00:18:21] *** c0d3rguy has joined ##OpenGL[00:18:31] *** c0d3rguy has left ##OpenGL[00:18:33] *** slime has joined ##OpenGL[00:21:30] *** bkre has quit IRC[00:22:38] *** hexagoxel has joined ##OpenGL[00:25:59] *** MiniCow has joined ##OpenGL[00:26:40] *** mayankmadan_ has quit IRC[00:27:13] *** ToreTank1 has quit IRC[00:30:12] *** ClarusCogitatio has quit IRC[00:30:13] *** samrat has quit IRC[00:30:35] *** Voidwalkr has joined ##OpenGL[00:31:47] *** ClarusCogitatio has joined ##OpenGL[00:31:54] *** doomlord_1 has quit IRC[00:33:35] *** Keniyal_ has joined ##OpenGL[00:34:20] *** metredigm has quit IRC[00:36:53] *** Keniyal has quit IRC[00:37:28] *** ClarusCogitatio has quit IRC[00:38:29] *** sedeki has quit IRC[00:38:41] *** ClarusCogitatio has joined ##OpenGL[00:41:18] *** Misu has quit IRC[00:42:06] *** Djstey has quit IRC[00:43:08] *** ClarusCogitatio has quit IRC[00:44:50] *** jdolan has joined ##OpenGL[00:45:28] *** ClarusCogitatio has joined ##OpenGL[00:59:09] *** james4k has joined ##OpenGL[01:02:44] *** Crehl has quit IRC[01:05:15] *** Langdal has quit IRC[01:05:42] *** tcsc has joined ##OpenGL[01:07:55] *** jdolan has quit IRC[01:08:00] *** lenarhoyt has quit IRC[01:08:37] *** jdolan has joined ##OpenGL[01:09:36] *** davidveiga has quit IRC[01:12:57] *** jdolan has quit IRC[01:18:07] *** konom has quit IRC[01:21:32] *** jdolan has joined ##OpenGL[01:23:29] *** BreadProduct has quit IRC[01:24:12] *** BitPuffin has quit IRC[01:25:58] *** hexagoxel_ has joined ##OpenGL[01:27:10] *** Garmine has quit IRC[01:28:17] *** indefini has quit IRC[01:29:18] *** hexagoxel has quit IRC[01:30:06] *** lenarhoyt has joined ##OpenGL[01:32:35] *** b4b has joined ##OpenGL[01:32:39] *** puerum has joined ##OpenGL[01:34:29] *** Garmine has joined ##OpenGL[01:34:53] *** Garmine is now known as Guest41213[01:36:54] *** captainmack_ has joined ##OpenGL[01:38:27] *** luxigo has quit IRC[01:38:36] *** james4k has quit IRC[01:38:56] *** james4k has joined ##OpenGL[01:39:11] <captainmack_> Does anyone have links to intro resources on GLU tesselate functions? Basically I want to learn how to give opengl a complex (self intersecting) polygon and get out all the edges that are on the border[01:39:28] *** asfdfdfd_ has joined ##OpenGL[01:39:48] <captainmack_> I believe I need to use both TESS_EDGE_FLAG and TESS_COMBINE but I am unsure of the specifics[01:40:06] <captainmack_> This is my first dive into opengl[01:40:17] <HuntsMan> captainmack_: just FYI, GLU is not part of OpenGL, and it is very outdated[01:40:32] *** b4b has quit IRC[01:40:46] <captainmack_> Is there a modern reccomended method to accomplish waht I am looking for?[01:40:53] *** Demon_Fox has joined ##OpenGL[01:41:13] <captainmack_> HuntsMan:[01:41:53] <HuntsMan> CGAL might have algorithms for that[01:41:55] <HuntsMan> but I am not sure[01:42:18] *** narcan has quit IRC[01:42:43] <captainmack_> HuntsMan: Ok, I am implementing an algorithm that refers to GLU functions. Do you know of any good resources for that then?[01:43:06] *** Twinklebear has joined ##OpenGL[01:43:59] *** Lemml has quit IRC[01:45:20] <bob_twinkles> https://www.cgal.org/[01:45:37] *** ClarusCogitatio has quit IRC[01:46:51] *** Voidwalkr has quit IRC[01:50:23] *** ClarusCogitatio has joined ##OpenGL[01:53:19] *** narcan has joined ##OpenGL[01:54:37] *** ClarusCogitatio has quit IRC[01:55:01] *** lenarhoyt has quit IRC[01:57:23] <captainmack_> Why is GLU outdated? What is meant to replace it?[01:58:02] <derhass> captainmack_: there is no direct replacement[01:59:04] <captainmack_> derhass: Is its functionality simply no longer needed by modern OpenGL programmers? It seems like the functions provided are generally useful[01:59:40] <derhass> the functions are no longer useful because they rely on deprecated/removed GL functionality[01:59:54] *** jdolan has quit IRC[01:59:57] <derhass> and are generally very inefficient on non-ancient GPU architectures[02:03:59] *** jdolan has joined ##OpenGL[02:04:16] *** james4k has quit IRC[02:05:37] *** indefini has joined ##OpenGL[02:07:39] *** ClarusCogitatio has joined ##OpenGL[02:08:54] *** hexagoxel_ has quit IRC[02:09:22] *** charlie5 has quit IRC[02:10:18] <foobaz> captainmack_: opengl has become much lower level over the years, as game developers have demanded performance and ignored opengl's high level features like lighting[02:10:54] *** razieliyo has quit IRC[02:11:15] *** kidnapped_robot has joined ##OpenGL[02:14:34] <captainmack_> foobaz: I see, thanks. Is there a more modern way to check winding numbers of connected regions?[02:15:01] <foobaz> i just do it manually, with math[02:15:01] *** SleekoNiko has joined ##OpenGL[02:15:28] <captainmack_> foobaz: Haha, thats what I am doing now but I was hoping opengl would make it easier[02:16:45] <foobaz> it's just a rasterization & GPU compute API, it doesn't offer any conveniences[02:16:53] <derhass> opengl is a rendering api[02:18:25] *** ClarusCogitatio has quit IRC[02:20:25] *** jdolan has quit IRC[02:22:45] *** jdolan has joined ##OpenGL[02:23:21] *** jdolan has quit IRC[02:23:38] *** jdolan has joined ##OpenGL[02:31:43] <Madsy> captainmack_: If you find an algorithm for doing what you want which is parallelizable, you can use OpenCL or CUDA for the implementation[02:36:58] *** ClarusCogitatio has joined ##OpenGL[02:37:51] *** zajfy has quit IRC[02:39:58] *** edwardjohn has joined ##OpenGL[02:44:58] *** ClarusCogitatio has quit IRC[02:45:48] *** asfdfdfd_ has quit IRC[02:49:10] *** slidercrank has quit IRC[02:50:31] <edwardjohn> I’m attempting to do shadow mapping by writing the depth from the lights perspective to a FBO texture and then read this back in my render shader to determine if a fragment is in the shade or lit by the light source. It works reasonable well and I’m encountering the expected aliasing and such, but I’m noticing an unusual artefact that I’ve not seen in any online documentation. Is it okay to post a link to a scre[02:50:32] <edwardjohn> shot? I’m thinking it might be a known issue.[02:51:32] *** Djstey has joined ##OpenGL[02:55:50] *** hahuang61 has quit IRC[02:56:04] *** narcan has quit IRC[02:58:43] <edwardjohn> I only ask becuase I know some channels have specific rules regarding posting links.[02:59:03] <foobaz> go for it[02:59:31] <edwardjohn> http://www.tiikoni.com/tis/view/?id=baf13f3[03:00:01] *** ClarusCogitatio has joined ##OpenGL[03:00:41] <edwardjohn> On the hollow cube in the foreground, you can see that the shadow seems to creep around the surfaces along a curve. I’m not sure what might be causing this effect.[03:02:40] <Stragus> That's weird, I don't have any suggestion on what might be causing this...[03:02:52] <edwardjohn> It seems to be effected by the angle of the surface relative to the direction of the light, less noticable when the surface is facing the light source. As such I wonered if it was some sort of z precision error - but it didn’t look like the typical shadow acne.[03:04:14] <Stragus> Did you try boosting the depth buffer precision to try out that possibility?[03:04:25] <edwardjohn> This is at 32bit ..[03:04:49] <edwardjohn> I don’t think I can go higher without migrating to GL 4 right?[03:04:52] <Stragus> Is the depth range astronomical?[03:06:12] *** Cabanossi has quit IRC[03:06:25] <edwardjohn> Well … no. but I supose the light source is fairly close. Near plane is 0.1 and far is .. ~10 for the light, and the camera is 100[03:06:53] <edwardjohn> I tried matching the near and far planes for light and camera and it didn’t resolve the issue.[03:08:07] *** ClarusCogitatio has quit IRC[03:08:08] *** retsura has joined ##OpenGL[03:08:29] *** retsura has left ##OpenGL[03:08:50] *** retsura has joined ##OpenGL[03:09:17] *** robot-beethoven has joined ##OpenGL[03:09:36] <Stragus> At the vertices, shadows do look correct. Is it related to interpolation of depth between vertices?[03:10:22] <edwardjohn> Well, I considered that but I didn’t think that GL let me have any control over that.[03:10:53] <edwardjohn> And it only ever does linear interpolation from vs to fs fight?[03:11:50] *** Ad1_RnR has joined ##OpenGL[03:12:01] *** charlie5 has joined ##OpenGL[03:12:58] *** narcan has joined ##OpenGL[03:13:13] <Stragus> If you interpolate depths linearly between vertices, values are going to be incorrect over a single triangle[03:13:51] <Stragus> I mean "depths" as seen from the light[03:14:05] *** ClarusCogitatio has joined ##OpenGL[03:15:01] *** SleekoNiko has quit IRC[03:15:33] *** zzuegg has quit IRC[03:15:39] *** Ad1 has quit IRC[03:15:43] <edwardjohn> Oh of course ...[03:15:50] <edwardjohn> Because, z is not linear.[03:18:43] *** det has quit IRC[03:20:46] *** ClarusCogitatio has quit IRC[03:21:10] <edwardjohn> I need to have a think about that. Thank you.[03:21:18] *** charlie5 has left ##OpenGL[03:22:33] *** meoblast001 has joined ##OpenGL[03:23:42] <foobaz> can you do it per-fragment instead of per-vertex?[03:24:32] <edwardjohn> Will that resolve the issue? I thought I would still have different (non-linear) depths?[03:26:17] <foobaz> they're still non-linear, but you would no longer be interpolating them[03:27:14] *** SleekoNiko has joined ##OpenGL[03:28:01] *** ClarusCogitatio has joined ##OpenGL[03:30:30] <edwardjohn> Sorry if I’m being slow here, but how do I pass the model coordinates to the fragment shader without interpolating them?[03:32:46] *** ClarusCogitatio has quit IRC[03:34:41] *** jbud has joined ##OpenGL[03:35:01] <foobaz> i think there's a function to get the depth value that you can call from the fragment shader[03:35:04] *** ClarusCogitatio has joined ##OpenGL[03:36:53] *** manny- has quit IRC[03:38:56] *** doomlord_1 has joined ##OpenGL[03:42:17] *** ClarusCogitatio has quit IRC[03:43:20] *** stoopdapoop has quit IRC[03:44:53] *** stoopdapoop has joined ##OpenGL[03:44:53] *** stoopdapoop has joined ##OpenGL[03:45:34] *** ClarusCogitatio has joined ##OpenGL[03:49:09] *** Hunts has joined ##OpenGL[03:50:29] *** ClarusCogitatio has quit IRC[03:53:02] *** HuntsMan has quit IRC[03:53:13] *** Garner has quit IRC[03:54:10] *** Thrzsh has quit IRC[03:55:36] *** telex has quit IRC[03:56:39] *** telex has joined ##OpenGL[03:57:03] *** ClarusCogitatio has joined ##OpenGL[03:59:10] *** manny- has joined ##OpenGL[04:01:47] *** ClarusCogitatio has quit IRC[04:06:57] *** Khlorghaal has quit IRC[04:11:05] *** retsura has quit IRC[04:11:34] <edwardjohn> Okay, I think I’m going to call it a night for now. Thankyou for help![04:11:35] *** ClarusCogitatio has joined ##OpenGL[04:15:47] *** Thrzsh has joined ##OpenGL[04:16:24] *** ClarusCogitatio has quit IRC[04:17:05] *** edwardjohn has quit IRC[04:20:49] *** BitPuffin has joined ##OpenGL[04:23:20] *** Twinklebear has quit IRC[04:25:38] *** Orion] has quit IRC[04:25:42] *** BitPuffin has quit IRC[04:28:36] *** Keniyal has joined ##OpenGL[04:30:39] *** ClarusCogitatio has joined ##OpenGL[04:32:18] *** Keniyal_ has quit IRC[04:33:26] *** Twinklebear has joined ##OpenGL[04:35:27] *** ClarusCogitatio has quit IRC[04:37:38] *** Zerflag has joined ##OpenGL[04:37:51] *** urraka has quit IRC[04:39:15] *** samrat has joined ##OpenGL[04:40:26] *** Zerflag has quit IRC[04:43:44] *** ClarusCogitatio has joined ##OpenGL[04:43:51] *** miyabe_ has left ##OpenGL[04:45:29] *** Jack__ has joined ##OpenGL[04:48:02] *** ClarusCogitatio has quit IRC[04:48:18] *** paperManu_ has quit IRC[04:49:20] *** ClarusCogitatio has joined ##OpenGL[04:49:45] *** fatalhalt 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quit IRC[09:40:21] *** bjz_ has joined ##OpenGL[09:41:02] *** redeemed has joined ##OpenGL[09:42:31] *** Hunts has quit IRC[09:43:54] *** SugarCube has quit IRC[09:45:53] *** erhan_ has joined ##OpenGL[09:46:26] *** abs25 has joined ##OpenGL[09:51:50] *** luxigo has joined ##OpenGL[09:53:27] *** Lemml has joined ##OpenGL[09:55:05] <Bloodust> In relation to Ubisoft blaming AMD for poor performance in Assassins greed's Unity http://i.imgur.com/IyomjBT.png[09:56:07] *** captainmack_ has quit IRC[09:56:38] *** captainmack_ has joined ##OpenGL[09:56:59] *** SugarCube has joined ##OpenGL[09:57:28] <slime> lol[09:59:29] *** shintahW2 has joined ##OpenGL[10:00:45] *** razieliyo has joined ##OpenGL[10:00:45] *** razieliyo has joined ##OpenGL[10:00:52] *** matpow2 has joined ##OpenGL[10:01:01] *** hahuang61 has quit IRC[10:01:08] *** captainmack_ has quit IRC[10:01:24] *** mat^2 has quit IRC[10:02:54] *** shintahW has quit IRC[10:02:54] *** shintahW2 is now known as shintahW[10:04:34] *** Zerflag has quit IRC[10:05:52] *** matpow2 has quit IRC[10:07:21] *** devbug has quit IRC[10:13:10] *** matpow2 has joined ##OpenGL[10:14:17] *** matpow2 has quit IRC[10:14:26] *** ClarusCogitatio has quit IRC[10:16:38] *** ClarusCogitatio has joined ##OpenGL[10:19:36] *** det has joined ##OpenGL[10:24:15] *** MiniCow has quit IRC[10:26:33] *** MiniCow has joined ##OpenGL[10:26:36] *** absof25 has joined ##OpenGL[10:27:20] *** snakenerd has joined ##OpenGL[10:29:52] *** snakenerd has quit IRC[10:29:57] *** abs25 has quit IRC[10:35:37] *** karab44 has joined ##OpenGL[10:38:03] *** wutata- has joined ##OpenGL[10:41:04] *** wiky has quit IRC[10:53:37] *** hdon has quit IRC[10:55:07] *** Khlorghaal has joined ##OpenGL[10:56:57] *** luxigo has quit IRC[10:57:27] *** centrinia has joined ##OpenGL[10:59:34] *** shintahW2 has joined ##OpenGL[11:00:04] *** luxigo has joined ##OpenGL[11:01:46] *** wiky has joined ##OpenGL[11:03:04] *** shintahW has quit IRC[11:03:05] *** shintahW2 is now known as shintahW[11:16:16] *** snakenerd has joined ##OpenGL[11:17:23] *** TyrfingMjolnir has quit IRC[11:19:14] *** MiniCow has quit IRC[11:22:42] *** Keniyal_ has quit IRC[11:28:50] *** bjz_ has quit IRC[11:29:06] *** bjz has joined ##OpenGL[11:29:23] *** BitPuffin has joined ##OpenGL[11:33:46] *** Demon_Fox has quit IRC[11:34:43] *** wiky has quit IRC[11:34:44] *** ClarusCogitatio has quit IRC[11:35:08] *** konom has joined ##OpenGL[11:35:12] *** robot-beethoven has quit IRC[11:37:11] *** det has quit IRC[11:37:40] *** ClarusCogitatio has joined ##OpenGL[11:37:42] *** det has joined ##OpenGL[11:40:46] *** asfdfdfd has joined ##OpenGL[11:52:55] *** bjz has quit IRC[11:53:40] *** Cooler has joined ##OpenGL[11:54:26] *** luxigo has quit IRC[11:54:28] <Cooler> Anyone know how to properly handle window resizing?[11:54:44] <Bloodust> call glViewport with the new resolution[11:54:51] <Cooler> for lwjgl and java program[11:54:53] <Adrinael> And adjust your projection[11:55:00] <Bloodust> and that[11:55:15] <Cooler> well this is for a 2d scene[11:55:35] <Cooler> so what should the glOrtho and glViewport calls be?[11:56:16] <Adrinael> Same as you do as the first call. With the new window size values.[11:56:36] <Bloodust> apart from not using glOrtho, you should call glViewport with the new window size[11:57:16] <Cooler> The only method to get window size seems to be getFrameBufferSize[11:57:30] <Adrinael> The window resize event should have it[11:57:43] <Adrinael> How do you call glOrtho (yikes) in the first place?[11:57:53] <Adrinael> I mean how do you get the window size there[11:57:55] <Cooler> passing the width and height i get from that to glOrtho and Viewport merely change the viewpoint[11:58:09] <Adrinael> As opposed to?[11:58:23] <Cooler> Well lets say is create a window 640x480[11:58:25] *** Shadda has quit IRC[11:58:28] <Cooler> when i resize it[11:58:47] <Cooler> the area that isn't clipped or black remains 640x480[11:58:50] *** TheBix has joined ##OpenGL[11:58:52] <Cooler> even at fullscreen[11:59:31] <Cooler> The drawable area doesn't change to match the new window size[11:59:46] *** shintahW2 has joined ##OpenGL[11:59:48] <Adrinael> Then you're calling glViewport wrong[12:00:09] <Cooler> glViewport(0,0 width,height)[12:00:26] *** Crehl has joined ##OpenGL[12:01:14] <Adrinael> And the values for width and height are correct?[12:01:20] <Adrinael> You're not accidentally grabbing the old size?[12:01:31] *** Shadda has joined ##OpenGL[12:03:16] <Cooler> getFrameBufferSize(window, width, height)[12:03:29] *** shintahW has quit IRC[12:03:30] *** shintahW2 is now known as shintahW[12:04:43] *** clauswitt has quit IRC[12:06:04] <Adrinael> That gets you the current framebuffer size. Not the window size.[12:06:13] <Cooler> How do you get that?[12:06:43] *** indefini has quit IRC[12:06:56] <Adrinael> The Display class has getWidth() and getHeight()[12:07:08] <Bloodust> :D[12:07:59] *** CodeGosu has joined ##OpenGL[12:08:05] <CodeGosu> i sometimes need to pass function as an argument 'vec3 df_normal(distance_field,in vec3 at){return blahblah;}' , is it possible somehow in glsl?[12:08:20] <Cooler> There is no display class anymore[12:08:25] *** retsura has joined ##OpenGL[12:08:26] <Cooler> this is LWJGL 3[12:08:31] <Cooler> which uses GLFW[12:08:47] <Adrinael> The window size has nothing to do with GL[12:08:47] *** hexagoxel has joined ##OpenGL[12:09:02] <Adrinael> As a hint for documentation browsing[12:09:19] <Adrinael> Is it Canvas you're using?[12:10:22] <Cooler> What?[12:11:34] <Cooler> GLFWwindow* window = glfwCreateWindow(640, 480, "My Title", NULL, NULL);[12:11:35] <Adrinael> What. Are. You. Using. To. Create. The. Window. And. Gl. Context.[12:12:16] <Adrinael> http://www.glfw.org/docs/latest/group__window.html#gaeea7cbc03373a41fb51cfbf9f2a5d4c6[12:17:13] <Cooler> What should i call glOrtho with?[12:17:22] *** doev has joined ##OpenGL[12:26:19] *** clauswitt has joined ##OpenGL[12:27:11] *** Crehl has quit IRC[12:27:41] <Cooler> Changing the viewport hasn't changed the problem[12:28:06] <Cooler> its still clipping everything outside the 640x480 box even when fullscreen[12:28:26] <Bloodust> two steps 1) change viewport and 2) change projection so things doesnt get skewed[12:29:32] <Cooler> both have been done[12:29:35] <Cooler> http://pastebin.com/rNDM8ikv[12:29:38] <Cooler> thats the code[12:30:13] *** mukunda_ has quit IRC[12:30:29] *** mukunda_ has joined ##OpenGL[12:31:11] <Bloodust> :|[12:31:53] <Bloodust> why is your depth inversed?[12:34:56] <Cooler> thats a typo[12:36:13] <Cooler> does the framebuffer size change automatically with window size?[12:36:45] *** BlackPhoenix has joined ##OpenGL[12:37:07] *** absof25 has quit IRC[12:39:58] *** BlackFox has quit IRC[12:40:22] <Cooler> is that why its getting clipped? because the framebuffer has to be resized to the new window size?[12:41:33] *** zajfy has joined ##OpenGL[12:43:12] *** retsura has quit IRC[12:43:26] *** telex has quit IRC[12:44:40] *** telex has joined ##OpenGL[12:45:02] *** M-ou-se has quit IRC[12:50:30] <Cooler> anybody?[12:50:32] <AbiBuccaneer> Cooler, see glViewport[12:50:47] *** bjz has joined ##OpenGL[12:51:23] <AbiBuccaneer> glViewport determines the subrectangle of the framebuffer that will be drawn to (by defining the window-space coordinates that the normalized device coordinates map to after clipping)[12:51:49] <AbiBuccaneer> if you resize your window, then the default framebuffer's backing image size will change, but the viewport won't automatically change[12:59:31] *** M-ou-se has joined ##OpenGL[12:59:50] *** samrat has quit IRC[13:00:57] *** paul424 has joined ##OpenGL[13:01:21] <Cooler> AbiBuccaneer: have you seen the code?[13:01:27] <Cooler> i am resizing the veiwport[13:01:47] <AbiBuccaneer> no, i haven't[13:02:37] <Adrinael> Print out the values you get for width and height, are they correct[13:02:38] <Cooler> http://pastebin.com/rNDM8ikv[13:03:17] *** Chunk2 has quit IRC[13:04:45] <AbiBuccaneer> Cooler, http://www.glfw.org/docs/latest/window.html section "Window framebuffer size"[13:04:59] <Cooler> width:-2147352576 height: -536805376 at 640x480[13:05:01] <AbiBuccaneer> the "window size" and "framebuffer size" are unrelated[13:05:45] <Cooler> width: 1443168256 height: -1056833536 at full screen[13:06:05] <AbiBuccaneer> Cooler, yeah those numbers look correct, the problem must be somewhere else ;)[13:06:27] <Cooler> i am not sure why it returns those numbers instead of the window size[13:06:28] *** foreignFunction has quit IRC[13:07:23] <AbiBuccaneer> people need to stop writing such shitty wrappers for C libraries[13:07:30] <AbiBuccaneer> passing in a bytebuffer to get an int out... christ[13:07:37] <Cooler> what?[13:07:42] <Cooler> yeah[13:07:48] <Cooler> in c its a pointer[13:08:06] <AbiBuccaneer> wouldn't the java equivalent be an Integer?[13:08:27] <Cooler> i think its because the buffers are nio and faster than just integers[13:08:40] <Cooler> also they are supposed to be continous memeory addresse[13:08:43] <Cooler> s[13:09:04] <AbiBuccaneer> Cooler, you know what's even faster is using a framebuffer size callback, which gets passed ints ;)[13:09:26] *** BreadProduct has joined ##OpenGL[13:09:29] <Cooler> i am not sure how that works though: is there an example code?[13:10:02] *** indefini has joined ##OpenGL[13:10:59] <AbiBuccaneer> in C, definitely yes. http://www.glfw.org/docs/latest/quick.html "Rendering with OpenGL"[13:11:27] <AbiBuccaneer> in java, maybe not, but you already use a WindowCallback in your code so i assume there's a FramebufferSizeCallback that works the same wqay#[13:12:38] *** Beetny has quit IRC[13:13:42] *** Chunk2 has joined ##OpenGL[13:15:47] *** paperManu_ has joined ##OpenGL[13:16:34] *** DrSkyLizard has joined ##OpenGL[13:18:52] <Cooler> AbiBuccaneer: woohoo[13:18:55] <Cooler> it works[13:19:30] <Cooler> it was definitely the buffers that was messing up the values[13:20:48] <AbiBuccaneer> Cooler, i figured it out[13:20:50] <AbiBuccaneer> endianness[13:21:10] <AbiBuccaneer> 1443168256 = 0x56500000[13:21:15] <AbiBuccaneer> 0x0556 = 1366[13:21:18] <AbiBuccaneer> :)[13:21:37] *** BlackPhoenix has quit IRC[13:22:18] <Cooler> aagh[13:22:52] <Cooler> how do you make sure it is stored and read from the buffer in either of one endians?[13:23:47] <AbiBuccaneer> ByteBuffer width = ByteBuffer.allocateDirect(4).order(ByteOrder.nativeOrder()); // something like this CodeGosu[13:23:50] <AbiBuccaneer> *Cooler[13:24:00] *** AbiBuccaneer is now known as AbigailBuccaneer[13:24:11] *** Burga has quit IRC[13:24:35] <Cooler> ok[13:24:51] <Cooler> well the callback is better anyway[13:25:18] <AbigailBuccaneer> yeah, i was under the impression that not using the callbacks in the C API was deprecated as of glfw3, though i may be wrong about that[13:26:22] *** Codex_ has joined ##OpenGL[13:26:45] *** shingshang has quit IRC[13:28:54] <derhass> AbigailBuccaneer: you are wrong[13:29:07] <AbigailBuccaneer> derhass, foiled again! curse you, brain[13:29:36] <Cooler> derhass: what it IS deprecated?[13:30:02] <derhass> nope[13:30:18] <Cooler> ok[13:30:49] <derhass> the rest of your code is, though[13:35:03] <Cooler> derhass: what do you mean the rest? except for which part/s?[13:36:23] <derhass> Cooler: well, you are using deprecated gl all over the place[13:36:49] <derhass> the gl matrix stack, fixed-function pipeline, immediate mode[13:37:04] <Cooler> its from this :http://www.lwjgl.org/guide[13:37:06] <Cooler> and[13:37:15] <Cooler> http://www.glfw.org/docs/latest/quick.html[13:37:33] <Cooler> yeah i am not actaully suing VBOs[13:37:34] *** Viata has joined ##OpenGL[13:37:38] <Cooler> using*[13:38:14] <Cooler> 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redeemed has quit IRC[17:20:06] *** seangrov` has joined ##OpenGL[17:20:07] *** seangrove has quit IRC[17:21:08] *** Jeanne-Kamikaze has joined ##OpenGL[17:22:14] *** devbug has joined ##OpenGL[17:24:03] *** DrSkyLizard has quit IRC[17:25:56] *** roboman2444 has joined ##OpenGL[17:27:29] *** TheBix has quit IRC[17:31:08] *** HuntsMan has quit IRC[17:33:04] *** ntx has quit IRC[17:34:02] *** japro has quit IRC[17:34:07] *** slidercrank has joined ##OpenGL[17:36:02] *** stefkos has joined ##OpenGL[17:36:20] *** Gamecubic has joined ##OpenGL[17:37:23] *** bjz has quit IRC[17:37:38] *** Jack_ has quit IRC[17:37:39] *** bjz has joined ##OpenGL[17:38:17] *** OliverUv has quit IRC[17:40:47] *** ntx has joined ##OpenGL[17:42:32] *** OliverUv has joined ##OpenGL[17:43:10] *** jonatan_ has joined ##OpenGL[17:44:22] *** HuntsMan has joined ##OpenGL[17:45:52] *** Ad1_RnR has joined ##OpenGL[17:53:26] *** CodeGosu has quit IRC[17:54:16] *** jonatan_ has quit IRC[17:58:47] *** HuntsMan has quit IRC[17:59:01] *** HuntsMan has joined ##OpenGL[18:00:24] *** xish has joined ##OpenGL[18:00:53] *** Gamecubic has quit IRC[18:05:54] *** wutata has quit IRC[18:08:14] *** Gamecubic has joined ##OpenGL[18:20:29] *** sedeki has joined ##OpenGL[18:21:15] *** tcsc has joined ##OpenGL[18:27:15] *** kmnt has joined ##OpenGL[18:28:17] *** DiffuseStorm has quit IRC[18:31:06] *** stefkos has quit IRC[18:31:28] *** Madsy has joined ##OpenGL[18:31:52] *** TheBunnyZOS has joined ##OpenGL[18:32:39] *** mat^2 has joined ##OpenGL[18:35:27] *** sedeki has quit IRC[18:35:59] *** serpardum has joined ##OpenGL[18:36:40] <serpardum> What is a good text rendering method for java in opengl? I'm looking at many fonts at different scales.[18:36:49] <serpardum> 3d[18:37:53] <flan3002> serpardum: 3D fonts? O.O[18:38:50] *** RyanPridgeon_ has quit IRC[18:38:53] <serpardum> I'll probably have to render them to a memory object then render the memory object into my world[18:39:05] <serpardum> I might be able to do that with slickutil3 http://www.ninjacave.com/slickutil3[18:39:09] <serpardum> I"ll try that I guess[18:39:36] <serpardum> I've done 3d fonts in DirectX before not that difficult, but opengl is a horse of a different color.[18:42:33] *** hahuang61 has joined ##OpenGL[18:42:50] *** erhan_ has quit IRC[18:44:25] <Stragus> Font rendering is a little outside the scope of core OpenGL[18:45:13] <Stragus> It's not too hard to use freetype and get images out, although Unicode and texture atlas management imply quite a bit of code too[18:54:12] *** Misu has joined ##OpenGL[18:56:43] *** damir__ has joined ##OpenGL[18:57:07] *** abs25 has joined ##OpenGL[19:00:35] *** BitPuffin has quit IRC[19:01:05] *** razieliyo_ has quit IRC[19:03:38] *** BitPuffin has joined ##OpenGL[19:06:02] *** Waynes has joined ##OpenGL[19:07:52] *** tcsc has quit IRC[19:09:39] *** shingshang has quit IRC[19:12:16] *** damir__ has quit IRC[19:21:10] *** RyanPridgeon has joined ##OpenGL[19:21:30] *** telex has quit IRC[19:22:38] *** telex has joined ##OpenGL[19:31:50] *** ShadowIce has joined ##OpenGL[19:34:18] *** foreignFunction has joined ##OpenGL[19:35:11] *** serpardum has quit IRC[19:36:21] *** luxigo has quit IRC[19:43:25] *** jdolan has quit IRC[19:45:41] *** DapperPixpy has joined ##OpenGL[19:52:54] *** jdolan has joined ##OpenGL[19:53:55] *** mayankmadan has joined ##OpenGL[19:55:43] *** hdon has joined ##OpenGL[19:56:57] *** kmnt has quit IRC[19:58:59] *** kmnt has joined ##OpenGL[19:59:06] *** roxlu has joined ##OpenGL[20:00:46] *** Gamecubic has quit IRC[20:01:22] <roxlu> hi guys, I’ve got a YUV420P texture which is “aligned” like this http://i.imgur.com/TtXLJ2v.png and I’m wondering how to get the correct texture coordinates. e.g. the U-planes starts at t=2/3 which I think would result in rounding errors. I can probably get around this by using GL_TEXTURE_2D_RECT but I’m not sure if this type is still wise to use[20:02:11] *** Gamecubic has joined ##OpenGL[20:06:33] *** mayankmadan_ has joined ##OpenGL[20:08:02] *** goliath has quit IRC[20:09:23] *** mayankmadan has quit IRC[20:14:09] *** ragecryx has joined ##OpenGL[20:15:30] *** Folkol has quit IRC[20:15:54] *** sedeki has joined ##OpenGL[20:16:52] *** CapsAdmin has joined ##OpenGL[20:18:58] *** teknoRx has joined ##OpenGL[20:20:18] *** Crehl has joined ##OpenGL[20:20:23] *** teknoRx has quit IRC[20:33:31] *** Syzygy_ has joined ##OpenGL[20:35:18] *** hexagoxel has quit IRC[20:38:31] *** Viata has joined ##OpenGL[20:38:44] *** bkre has joined ##OpenGL[20:40:22] *** konom has quit IRC[20:40:36] *** danhedron has quit IRC[20:42:52] *** danhedron has joined ##OpenGL[20:42:52] *** danhedron has joined ##OpenGL[20:46:09] *** snakenerd has quit IRC[20:51:08] <newguise1234> Madsy: I feel so stupid, I spent 2 days going over my implementation of marching boxes because I had had a mod 4 instead of a mod 2 in two places. :/[20:52:12] *** zzuegg has quit IRC[20:52:13] *** stefkos has joined ##OpenGL[20:52:34] *** jdolan has quit IRC[20:52:38] *** Waynes has quit IRC[20:54:48] *** xishe has joined ##OpenGL[20:56:23] *** CainJacobi has joined ##OpenGL[20:58:24] *** xish has quit IRC[21:08:43] *** meoblast001 has joined ##OpenGL[21:09:33] *** karab44 has joined ##OpenGL[21:13:12] *** Viata has quit IRC[21:13:21] *** ManDay has joined ##OpenGL[21:13:42] *** BitPuffin has quit IRC[21:17:29] *** damir__ has joined ##OpenGL[21:21:46] *** Jeanne-Kamikaze has quit IRC[21:23:15] <Madsy> newguise1234: It happens to the best of us[21:23:16] *** pizthewiz has joined ##OpenGL[21:25:17] *** roboman2444 has quit IRC[21:33:03] *** dusted has joined ##OpenGL[21:33:13] *** Garner has quit IRC[21:34:09] *** samrat has quit IRC[21:42:10] *** meoblast001 has quit IRC[21:42:42] *** abs25 has quit IRC[21:43:21] *** hexagoxel has joined ##OpenGL[21:43:46] *** konom has joined ##OpenGL[21:51:30] *** Garner has joined ##OpenGL[21:54:27] *** realz has quit IRC[21:58:07] *** realz has joined ##OpenGL[21:58:07] *** realz has joined ##OpenGL[21:58:40] *** ManDay has quit IRC[22:14:28] *** jdolan has joined ##OpenGL[22:18:48] *** zzuegg has joined ##OpenGL[22:21:23] *** tehrain has quit IRC[22:22:37] *** PasNox has quit IRC[22:22:47] *** seangrov` has quit IRC[22:32:48] *** Thrzsh has quit IRC[22:35:43] *** roxlu has quit IRC[22:38:05] *** qeed has joined ##OpenGL[22:43:06] *** realz_ has joined ##OpenGL[22:43:11] *** realz_ has quit IRC[22:43:43] *** TheTeapot has quit IRC[22:46:07] *** bjz has quit IRC[22:46:14] *** bjz_ has joined ##OpenGL[22:52:22] *** paul424 has joined ##OpenGL[22:52:53] *** BreadProduct has quit IRC[22:55:56] *** ragecryx_ has joined ##OpenGL[22:58:17] *** ragecryx has quit IRC[22:59:22] *** Lemml has quit IRC[23:01:42] *** ragecryx_ has quit IRC[23:07:41] *** MLM has joined ##OpenGL[23:16:35] *** stefkos has quit IRC[23:18:20] *** Thrzsh has joined ##OpenGL[23:20:39] *** BreadProduct has joined ##OpenGL[23:27:06] *** void256 has joined ##OpenGL[23:28:48] *** Renderwahn has joined ##OpenGL[23:30:27] *** metredigm has joined ##OpenGL[23:31:02] *** Crehl has quit IRC[23:31:27] *** Crehl has joined ##OpenGL[23:31:33] <metredigm> it seems like if i don't bind to GL_ARRAY_BUFFER before i call VertexAttribArray/Pointer then the buffer data is somewhat corrupted[23:31:48] <bob_twinkles> are you binding a VertexArray ever?[23:32:04] <metredigm> and any attempts to bind the buffer after making those calls doesn't change the actual buffer state[23:32:12] <metredigm> and yeah i gen and bind the vertex array before all of it[23:32:25] <derhass> metredigm: well of course[23:32:44] <derhass> works as intended[23:33:19] <metredigm> any way to change which buffer is bound to GL_ARRAY_BUFFER during runtime? (without making more calls to VertexAttribPointer etc)[23:33:19] <bob_twinkles> VAOs keep track of what buffers they're associated with[23:33:54] <derhass> chaning the vertex attrib pointer reuquires... changing the vertex attrib pointer[23:33:57] <bob_twinkles> so when you bind a VAO it also binds something new to the array and array element buffers[23:34:12] <metredigm> yeah, but i'm sharing a VAO for all of my vertex buffers[23:34:20] <metredigm> it seems like it only holds the first bind[23:34:34] <metredigm> any future binds don't change anything[23:36:45] <derhass> they change the binding[23:36:54] <derhass> but that is quite irrelevant[23:37:30] *** Rutix has quit IRC[23:37:53] *** Rutix has joined ##OpenGL[23:37:53] *** Rutix has joined ##OpenGL[23:38:14] <derhass> metredigm: modern gl has glBindVertexBuffer[23:38:31] <derhass> which might or might not be helpful for what you want[23:38:36] <metredigm> hm.[23:39:11] <metredigm> well after some more in-depth debugging i think there may be two VAO objects floating around due to a bad handle[23:40:47] <derhass> it still behaves perfectly as it should[23:43:23] *** damir__ has quit IRC[23:46:12] *** det- has joined ##OpenGL[23:46:14] *** det has quit IRC[23:47:30] *** DrBenway has joined ##OpenGL[23:52:09] <metredigm> alright, i forgot that there exists a shader to render text, this problem is still present[23:52:20] <metredigm> i'll link to some code for those that may be able to help[23:53:34] <metredigm> http://ideone.com/b37UZu[23:54:41] *** foreignFunction has quit IRC[23:54:47] <derhass> metredigm: the gl state machine simply does not work that way[23:55:11] <derhass> glDrawArrays will not care about the GL_ARRAY_BUFFER binding[23:55:20] <derhass> so setting it there does not make sense at all[23:55:33] <metredigm> i thought that was the source?[23:55:41] <derhass> no, it isn't[23:55:55] <derhass> the buffer binding is part of the attrib pointer[23:56:31] <derhass> the only functions caring about GL_ARRAY_BUFFER ar glVertexAttribPointer*()[23:56:40] <metredigm> interesting[23:56:42] <derhass> as I said: this works as intended[23:57:04] <metredigm> so, to switch source VBOs, i'd make more calls to vertexattribpointer on a per-frame basis[23:57:16] <derhass> OR use different vaos[23:57:36] *** staylor has joined ##OpenGL[23:57:49] <metredigm> is either of the methods faster?[23:57:51] <derhass> OR use glBindVertexBuffer (assuming a fairly recent GL is available)[23:58:06] <derhass> metredigm: that's hard to tell[23:58:06] <metredigm> eh, i have 3.1 as a minimum support level[23:58:16] <derhass> so forget about the last option[23:59:08] <metredigm> alright, to save myself from restructing half the rendering system i'll just add vertexattribpointer calls immediately before drawarrays[23:59:37] <slime> glBindVertexBuffer is part of GL_ARB_vertex_attrib_binding, which was added to core GL in 4.3