| --- Log opened Sun Jun 17 00:00:10 2018 |
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| 00:30 | <@celticminstrel> | It also makes math expressions very, very verbose. |
| 00:31 | <@celticminstrel> | (Or very, very large if you use the node that automatically generates a graph from an expression.) |
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| 03:25 | <&McMartin> | Ahahahaha, whoops |
| 03:25 | <&McMartin> | Well, TIL |
| 03:25 | | * McMartin has been porting some old code from his student days to SDL2. |
| 03:25 | < RchrdB> | McMartin, ? what'd you do? |
| 03:25 | <&McMartin> | So, the thing I just got working was aspect correction for the modern approach to fullscreen apps |
| 03:26 | <&McMartin> | The thing I learned today is that glClear does not in fact respect glViewport, so the pillarboxing is changing colors incorrectly :D |
| 03:26 | <&McMartin> | (And the way to constrain a glClear is to enable the scissor test) |
| 03:27 | < RchrdB> | I didn't know you could constrain glClear at all. |
| 03:29 | <&McMartin> | So, I haven't actually done the scissorwork yet, but it looks like I can control the pillarboxing color independently by doing a glClear, enabling the scissor test, changing the clear color, glClearing again, and then disabling the scissor test. |
| 03:31 | < RchrdB> | can you glClear the whole screen with the colour you want the pillarboxes to be and then later during the frame draw over everything except the pillarboxes? |
| 03:31 | <&McMartin> | It's the "draw over everything" part that's the trick, yes; I'm using the clear color to represent the untextured sky in this old project. |
| 03:32 | < RchrdB> | sounds like it'd be less complicated to draw a flat colour rectangle over the drawable area immediately after the glClear(), than to do the fiddling around to get a second glClear() invocation to do the thing |
| 03:33 | <&McMartin> | No, the less complicatred thing to do is to not have to try to edit rendering code so old that it was written when OpenGL 1.2 was cutting edge |
| 03:33 | <&McMartin> | And instead paste three lines of code at the top |
| 03:35 | <&McMartin> | Not to mention that this is OpenGL 1.1 code; "draw a flat color rectangle" involves kicking a state machine around and emitting something like twelve API calls. |
| 03:37 | <&McMartin> | (This was my old final project from a graphics class in 2003.) |
| 03:37 | <&McMartin> | https://i1.wp.com/bumbershootsoft.files.wordpress.com/2018/06/bad_pillarbox.jpg?ssl=1 |
| 03:37 | < RchrdB> | what's the game? |
| 03:37 | < RchrdB> | this looks like a flightsim |
| 03:37 | <&McMartin> | More like a cheap afterburner clone |
| 03:39 | <&McMartin> | Basically, I'm familiarizing myself with SDL2 by converting a bunch of my juvenilia into using SDL2 instead of SDL1 |
| 03:39 | <&McMartin> | So the one that's "just use OpenGL for everything" is the smallest amount of conversion |
| 03:40 | <&McMartin> | Then the one that wants an accelerated sprite renderer |
| 03:40 | <&McMartin> | And then I can look into finally making UQM have a sensibly resizable window and do fullscreen properly on modern machines. |
| 03:52 | <&McMartin> | Yeah, it turns out the scissortest is completely trivial |
| 03:52 | <&McMartin> | When I call glViewport, call glScissor with identical arguments |
| 03:53 | <&McMartin> | Then after my initial "glClearColor(...) glClear(...)" |
| 03:53 | <&McMartin> | add |
| 03:53 | <&McMartin> | glClearColor(...); glEnable(GL_SCISSOR_TEST); glClear(GL_COLOR_BUFFER_BIT); glDisable(GL_SCISSOR_TEST) |
| 04:08 | < RchrdB> | is the scissor test literally "paint only on pixels which intersect the viewport"? |
| 04:09 | < RchrdB> | I thought it was something more complicated like the stencil buffer which, y'know, has to be filled out with more draw calls |
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| 04:14 | <@celticminstrel> | Not quite. |
| 04:14 | <@celticminstrel> | It's more like setting a clipping rectangle, which may or may not be the full viewport. |
| 04:14 | <@celticminstrel> | It's nothing to do with the stencil buffer AFAIK. |
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| 05:09 | <&McMartin> | Yeah, it's not the stencil buffer, it's a much simpler test. |
| 05:10 | <&McMartin> | I think it's intended to be "keep stuff inside the window on IRIX" |
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| 06:23 | <&[R]> | I'm impressed at how many people just blatantly refuse to read errors |
| 06:23 | <&[R]> | ESPECIALLY code-monkeys |
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| 10:07 | <@TheWatcher> | [R]: "impressed" isn't quite the word I'd use. Generally it's more like "infuriated" |
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| 14:18 | <&[R]> | TheWatcher: Indeed. The most recent example that prompted that was a guy coming in with an error "handler method did not return a value, a promise, or throw an error" and was asking WTF to do. His code didn't have a return on the handler method. |
| 14:29 | | * TheWatcher facepalm |
| 14:31 | <&[R]> | And then another time, guy comes in, pastes an error message, asks WTF. I paste it right back at him. "Ah. Okay, that makes sense." and then leaves. |
| 14:52 | <@celmin|sleep> | XD |
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| 18:46 | <&[R]> | https://www.yahoo.com/news/jeopardy-winner-could-prison-sneaking-emails-200321878.html |
| 18:46 | <&[R]> | "Authorities said Jass logged into other people's email accounts without permission over a four-day period last year after the college reset everyone's passwords and assigned everyone the same temporary password" |
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| 19:58 | < Emmy> | ...and why is the college´s sysad not being persecuted |
| 19:59 | <&McMartin> | The law in question presumably says something like "don't touch things you're not supposed to" and a sysad is authorized to do password resets |
| 20:11 | < Emmy> | not necessarily, but at the very least not by setting them to exactly the same thing! |
| 20:12 | <@ErikMesoy> | McMartin: more like "don't look at things you're not supposed to", actually. |
| 20:13 | <@ErikMesoy> | https://www.law.cornell.edu/uscode/text/18/1030 Fork a-2-C criminalizes "Whoever ... intentionally accesses a computer without authorization or exceeds authorized access, and thereby obtains ... information from any protected computer" |
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| 20:17 | < Emmy> | keyword ´protected´ |
| 20:18 | <@ErikMesoy> | A computer does not need to be protected to be a "protected computer", it's one of those technical legal terms. Section e-2 defines "protected computer" as a government computer, or a bank computer, or a computer used in or affecting interstate or foreign commerce or communication. |
| 20:19 | <@ErikMesoy> | ("computer which *should* be protected" is perhaps how one might read that) |
| 20:23 | <&McMartin> | Right |
| 20:23 | <&McMartin> | Computer Protected By This Law |
| 20:24 | <&McMartin> | But yeah, the only way you'd get a grand jury to indict the sysadmin for that is if the password reset were itself some kind of rogue act |
| 20:24 | <&McMartin> | And maybe not then because password resets don't reveal the old password |
| 20:24 | <&McMartin> | (And sysadmins have "do password resets" as part of their "authorized access" or they're not much of a sysadmin) |
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| 22:15 | < Emmy> | interesting difference between america and this side of the pond, i suppose. |
| 22:17 | < Mahal> | The passwords all being set to something identical sounds more like "fuckup" than "deliberate", tbh |
| 22:41 | <@TheWatcher> | Or "utterly incompetent admin", which is where I'd put my money, frankly |
| 22:41 | <&[R]> | The other real WTF is the fact the software they used for email access didn't have a proper temporary password setup |
| 22:42 | <&[R]> | Moment she used one of the temporary passwords, it should've forced her to provide a new one. |
| 22:43 | < Mahal> | that's what I meant by "fuckup", yes |
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| --- Log closed Mon Jun 18 00:00:11 2018 |