Automatic commit of irc logs

Q:	What looks like a cat, flies like a bat, brays like a donkey, and
	plays like a monkey?
A:	Nothing.

diff --git a/irc/#ipdf.log b/irc/#ipdf.log
index 17bb7c7..5d56f42 100644 (file)
--- a/irc/#ipdf.log
+++ b/irc/#ipdf.log
@@ -1023,3 +1023,108 @@
 17:45 <@matches> I think I will make a video of a circle moving towards infinity
 17:45 <@matches> This probably won't help the literature view much but it's too tempting to resist
 17:46 <@matches> I gave up trying to deal with our document format so I currently just generate vector<pair<T, T> > and then map that to a bitmap :P
+--- Day changed Thu May 08 2014
+10:57 <@matches> So circle was a terrible example
+10:57 <@matches> It stays as a circle
+10:58 <@matches> Hopefully the first curve I tried wasn't just a bug
+12:31 <@matches> I think it was a bug
+13:35 <@matches> There are bezier things in ipdf/code/src/tests now
+13:57 < sulix> I am very confused. 
+13:57 < sulix> It generates bitmaps of circles in varying shades of red?
+13:58  * sulix decides to actually read the code.
+14:03 < sulix> Ah: I see what it's doing now.
+14:16 <@matches> Your first comment was pretty accurate :S
+14:17 <@matches> I was trying to obtain some amazing animation of a circle that hopelessly collapsed or exploded or something
+14:19 < sulix> I'm slightly terrified that it's generating a vector of points.
+14:19 < sulix> On the other hand, it looks like the rest of the world is realising what a mistake making OpenGL 3 terrifying was.
+14:19 <@matches> Yeah that's a bit lazy
+14:19 <@matches> Although, is returning a vector optimisable?
+14:20 < sulix> In C++11 it is.
+14:20 < sulix> (But not C++98)
+14:20 <@matches> C++11 is growing on me
+14:20 < sulix> Yeah: I've found the same thing.
+14:21 < sulix> I'm a bit scared about what that means, though.
+14:21 < sulix> Maybe one day I'll think boost was a good thing, and then I'll truly be lost.
+14:21 <@matches> Hahaha
+14:21 <@matches> The lambdas remind me of Javascript :S
+14:22 < sulix> I think lambdas are one of those things that are good for you in moderation, but poisonous in large quantities.
+14:22 <@matches> Probably
+14:23 < sulix> I won't be around on Monday, btw, so I'll miss the meeting.
+14:23 < sulix> (Also I'm missing out on Codejam, sadly)
+14:23 <@matches> No!
+14:23 <@matches> (To both of those things)
+14:24 <@matches> Oh god that means I need to make double the progress
+14:25 < sulix> I spoke to Tim, he said that it might be worth cancelling the meeting altogether.
+14:26 <@matches> Haha
+14:26 <@matches> I'm not sure if I should take that as a good or bad sign
+14:27 <@matches> I'm not going great with the literature review
+14:28 < sulix> I rated a bit of it.
+14:28 < sulix> (Though there wasn't a submit button, and it took me a few goes to get through the Turing test)
+14:28 <@matches> Page 20?
+14:28 <@matches> Haha
+14:28 <@matches> The turing test defaults to the accepted answer though!
+14:28 <@matches> You have to actually change it to get it wrong
+14:29 < sulix> Yeah, I thought it was a trick question.
+14:29 <@matches> Maybe I'll give Tim a slightly less joke-worthy version of Rate My LitReview when the draft is done
+14:29 <@matches> ... when hell has frozen over...
+14:29 <@matches> Whichever comes first
+14:31 < sulix> You should read James Mickens' USENIX articles: mkdir -p vogl/vogl_build/bin/release64 && cd $_                                                                                                                                                                                  
+14:31 < sulix> cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_X64=On ../../..                                                                                                                                                                         
+14:31 < sulix> make -j 10
+14:31 < sulix> (Also I should paste the right thing in)
+14:31 < sulix> http://research.microsoft.com/en-us/people/mickens/
+14:32 <@matches> Ah yes, I will read those at some point
+14:32  * matches downloads the first one, telling himself he will not read it until working on the lit review
+14:33  * matches reads it anyway
+14:33  * sulix feels guilty about not doing lit review at the moment, too.
+14:40 <@matches> Have you heard of /read Computer Graphics by Hearn and Baker?
+14:40 <@matches> I have the ancient "In the dawn before OpenGL 1.0" version
+14:41 <@matches> There is a section mentioning "GL"
+14:41 <@matches> I don't think they use GPU anywhere, they call them "Display Rasterisers" or something
+14:42 <@matches> Display Processor
+14:43 <@matches> A Display Processing Unit is a Display Processor for a Random Scan (vector) display system
+14:43 <@matches> Input devices are interesting too
+14:44 <@matches> "Input Dials"
+14:44 <@matches> A box of variable resistors basically
+14:45 <@matches> Working with computers in the 70s/80s would have been interesting although probably just as horrible as it is today
+14:45 <@matches> But at least it would have been less "webby"
+14:46 <@matches> Where "How do I centre a div" is a deep philosophical question
+14:48 <@matches> I should probably obtain / read a newer edition of this if I want to put it in my lit review?
+14:48 <@matches> Although it is referrring to the same papers we had about Bressenheim
+15:14 <@matches> Oh my god they mention precision!
+--- Log closed Thu May 08 17:04:49 2014
+--- Log opened Thu May 08 18:56:39 2014
+18:56 -!- matches [[email protected]] has joined #ipdf
+18:56 -!- Irssi: #ipdf: Total of 2 nicks [0 ops, 0 halfops, 0 voices, 2 normal]
+18:56 -!- Irssi: Join to #ipdf was synced in 3 secs
+19:55 < matches> Bresenham made a tutorial on rasterisation
+19:56 -!- mode/#ipdf [+o matches] by OperServ
+19:56 <@matches> Bresenham has a nice tutorial about rasterising
+19:56 <@matches> Ties in with the "Since mankind came down from the trees" angle
+19:57 <@matches> "Needlepoint or counted cross-stitch, such as that popularised by the image on a box of Whitman Sampler chocolates..."
+19:57 <@matches> I'm not sure how to relate the rasterisation stuff to the precision stuff
+19:58 <@matches> You have to make a pretty big rounding error to end up in the wrong pixel
+19:59 <@matches> Hearn and Baker mention rounding errors as being one reason why you don't want to use floats and then round them when rasterising things
+19:59 <@matches> The (bigger) reason being that floating point operations are expensive
+20:00 <@matches> They say pixels could move from the line in the DDA algorithm for long lines... I wonder how long they mean... 1e38 pixels? :P
+20:02 <@matches> I want to actually make a drawing of things that look different due to rounding errors dammit!
+20:03 <@matches> None of this "here is a sentence or two of handwaving"
+20:04 <@matches> Maybe rounding errors were a problem on computers with 8 bit floats and terrible resolution displays :P
+20:04 <@matches> Except the worse your resolution the less you'd notice rounding errors
+20:04 <@matches> Well the more you'd notice them, the less they'd happen?
+20:04 <@matches> I don't know
+20:05 -!- mode/#ipdf [-o matches] by matches
+20:30 < sulix> These were recommended: http://www.amazon.com/Forman-S.-Acton/e/B001IYTXGY/?_encoding=UTF8&tag=mollrock-20&linkCode=ur2&qid=1358713701&camp=1789&sr=8-3&creative=390957
+20:30 < sulix> (By a blog post, which turned out not to be about floating point precision, but does mention it: http://mollyrocket.com/casey/stream_0009.html )
+21:21 < matches> I'll look at them at some point
+21:22 -!- mode/#ipdf [+o matches] by OperServ
+21:22 <@matches> I'll look at them at some point
+21:22 <@matches> I sort of got bogged down explaining how lines are drawn :S
+21:22 <@matches> Graphics is complicated dammit
+21:22 <@matches> I'll probably get more done if I just write about everything no matter how irrelevant
+21:23 <@matches> Sooner or later I'll actually write something important and the rest can be appendicised
+21:23 <@matches> Hopefully
+21:25 <@matches> Oh dear, I have located some primitive form of blog
+21:26 <@matches> Well, it talks about things, so I'll reference it...
+21:26 <@matches> "The good-looking textured light-sourced bouncy fun smart and stretchy page"
+21:26 <@matches> It's generally best to not go up a directory from the page you are looking at