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| Some recent topics started on our forums |
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Mojoworld/Volumetrics - clouds
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(Featured image is rotated to fit into resolution limit and to attract attention better :-) )
These images is shaped using MojoWorld procedurals(except for erosion) and rendered using my volumetric renderer that works as plugin for mojoworld (stan... |
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Posted June 2, 2006 12:26:06 PM
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Rant about cold or flu and release.
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Just wanted to explain why I'm so pissed off lately:
I'm releasing a game [first time I ever release something entirely on my own] and I fell sick with bad cold or mild-ish flu in middle of the pre-release mess so that I couldn't much work. You... |
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Posted June 4, 2009 4:18:36 PM
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What gamedev.net forums got that most forums don't
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1: Long running popularity contest and as result extremely elitist attitudes, massive direct and indirect self-praising.
2: Newbie abuse, even by moderators, and I'm not the only one who thinks so.
3: Semi-anonymous moderation. A recipe f... |
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Posted June 3, 2009 4:25:56 AM
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Psychological Experiment: Guess the answer to physical question.
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There are 2 solid copper spheres of radius 1cm, at separation 1cm, flying in space far away from stars. Spheres are initially at rest relatively to each other, and are not electrically charged.
Using just your head (no paper-n-pencil, no notepad, no... |
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Posted May 18, 2009 11:55:17 AM
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wow, brain interface directly to fiber optics
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Well, almost.
neurons can be made sensitive to light, then controlled optically
That is really amazing. Researchers could make group of neurons sensitive to blue light by infecting them with special virus (which changes genetic material in live neu... |
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Posted April 30, 2009 3:15:13 PM
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Popular presentation of science is getting worse and worse.
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This blog post totally sums up what I think on the topic.
The popular science that explained why sky is blue (something which majority of people don't know) seem to be long gone from mass media; now it just talks about highly advanced stuff (st... |
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Posted March 9, 2009 8:11:36 PM
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Newcomb's paradox
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I came across this cool thing:
Newcomb's paradox
Quote:
person is playing a game operated by the Predictor, an entity somehow presented as being exceptionally skilled at predicting people's actions. The exact nature of the Predictor varies betw... |
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Posted April 14, 2009 6:06:55 PM
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Photic sneeze
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I just randomly came over this:
photic sneeze. I never noticed it in anyone and don't have it myself. Does anybody here have it?
(I'm always fascinated by odd things like that. If it is present in 20+% of people, how come I never noticed that wi... |
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Posted April 8, 2009 2:34:44 PM
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My space shooter (WIP) - now with Mac OS X support
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There's second iteration of my game...
Youtube video (annotated)
Version with static fractal background:
Windows | Linux (both 32 and 64 bit builds) | Mac OS X (Intel)
Updates: much improved engine, enemy models generated on the fly.... |
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Posted February 18, 2009 5:54:37 PM
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Dysgraphia (difficulty at handwriting)
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Wiki page
Describes me exactly.
I can read very quickly, as well as touch-type. I can even draw portraits.
But my writing is painfully slow. I have to draw every letter consciously, constantly watching the pen, no matter the practice (stark contra... |
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Posted March 14, 2009 10:05:41 AM
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View All Topics Started By This User
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| Some recent replies made on our forums |
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Critique my threadsafe lockless queue!
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Quote:Original post by Antheus
Quote:Original post by Dmytry
Hmm. I don't think this thread is about optimizing a production game engine to multicore.
No, it isn't.
It's about correctness of OP's particular lockless queue.
Which was found in... |
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Posted September 18, 2009 8:58:33 AM
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Critique my threadsafe lockless queue!
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I honestly stated enough about my experience, where my experience is limited and where it is not. How's about you state something about your experience to be even too? I don't want to privatize this thread with my bragging and then getting again accu... |
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Posted September 18, 2009 8:29:51 AM
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Critique my threadsafe lockless queue!
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Quote:Original post by Antheus
Quote:Original post by Dmytry
Let's see... two "#pragma omp task" lines and maybe one "#pragma omp taskwait" and no changes to algorithm itself at all. Compile it with openmp disabled and it'll be a good single c... |
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Posted September 18, 2009 5:50:09 AM
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Critique my threadsafe lockless queue!
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Quote:Original post by Hodgman
Dmytry, your last post, summing up the discussion of inter-thread communication as "'std::vector vs your first ever array class'" is not only ignorant, but offensive too.
You're offended by suggestion that a prac... |
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Posted September 18, 2009 5:32:34 AM
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Critique my threadsafe lockless queue!
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"Doesn't OpenMP introduce it's own foreign syntax, full of #pragmas and what-not, which intrudes on your algorithm too?"
Let's see... two "#pragma omp task" lines and maybe one "#pragma omp taskwait" and no changes to algorithm itself at a... |
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Posted September 17, 2009 9:53:24 AM
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Critique my threadsafe lockless queue!
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CAS and atomic increment: I'm fairly certain that it is always slow (it does have to inform other cores), and especially slow when multiple cores are competing for it.
As for your design... well, suppose you want to do something in particular, say... |
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Posted September 15, 2009 4:06:14 AM
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Critique my threadsafe lockless queue!
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Quote:Original post by Hodgman
The windows API implements a lock-free singly linked list, which you can easily wrap into some kind of queue structure.
The XBox SDK also comes with lock-free queues and such out of the box.
Good to know. Unixes al... |
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Posted September 14, 2009 3:40:45 AM
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Critique my threadsafe lockless queue!
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Quote:Original post by Antheus
Quote:Original post by Dmytry
Active Objects are only real world when your real world pointy headed boss tells you to implement Active Objects coz he read somewhere that those are a must... otherwise you still ne... |
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Posted September 13, 2009 10:44:18 AM
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Critique my threadsafe lockless queue!
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Quote:Original post by Hodgman
A lock-free queue *is* an order of magnitude more complicated to write/debug, so you should only bother if you need that performance boost. The performance difference can be *huge* though.
When a lot of threads... |
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Posted September 13, 2009 10:18:28 AM
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Critique my threadsafe lockless queue!
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Quote:Original post by Antheus
Quote:Original post by Dmytry
Out of curiosity. What would be the real world usage scenario where you would actually need this thing?
Active Objects.
You have n objects that are handled by thread pool. At any... |
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Posted September 13, 2009 4:39:42 AM
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View All Replies Made By This User
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