w00t http://bpeers.com/blog/ en-us Nucleus CMS v3.2 Weblog http://backend.userland.com/rss http://bpeers.com/blog//nucleus/nucleus2.gif w00t http://bpeers.com/blog/ <![CDATA[The Art of Faking]]> http://bpeers.com/blog/index.php?itemid=413 Pixel-Correct Shadow Maps with Temporal Correction etcetera.



It's a nifty idea and if it works as well under motion as under static tests, this may turn out to be very useful at a modest cost in memory and complexity. What caught my eye though is the little "micro-gem" embedded in it, which goes something like this:

if a solution requires a weighted sum of a number of samples, and you don't have the storage for all of them, you may be able to get away with just storing the weighted sum of what you have so far and adding new data to this running average as you go.

That's basically all there is to it; a test-shadow in their test scene requires 80 samples, but they're not going to hold on to 80 copies of the framebuffer, or pay an 80-fold increase in shadow map resolution; so the result is refined on the fly based on the best guess so far. Of course, you need to guard against averaging apples with oranges, and that's where the inverse world space transforms come into play.

So even if the technique isn't immediately put into practice, that trick right there is definitely something to keep in mind. Oddly enough it's the little basic things like these that are easily overlooked when grokking all the options, variations and algorithms making up a modern pipeline. Another good example I recall is the "if it's too expensive, see if you can fake it with a sum of Gaussians" that was the backbone of subsurface scattering in GPU Gems 3. These small but powerful core ideas are the true gems to keep in mind!]]> zwans http://bpeers.com/blog/index.php?itemid=413 Thu, 20 Nov 2008 17:16:14 -0500 <![CDATA[Blues on the Meir]]> http://bpeers.com/blog/index.php?itemid=412
antwerp meir blues piano dude street musician antwerpen dog ]]> belgie http://bpeers.com/blog/index.php?itemid=412 Wed, 19 Nov 2008 22:09:42 -0500 <![CDATA[Antwerpen Centraal]]> http://bpeers.com/blog/index.php?itemid=411
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Pop Quiz: an actual, honest to god full-scale jet-fighter has been flying around in the trainstation of Antwerp.
Question: When was this, why was this, and what plane was it?

The last part of that question should be easy if you know anything about planes :) It's not like it'll fit an Airbus 380.]]> belgie http://bpeers.com/blog/index.php?itemid=411 Mon, 17 Nov 2008 20:00:28 -0500 <![CDATA[Tough choice]]> http://bpeers.com/blog/index.php?itemid=410 ...throw everything on the scrapheap (or sell it)...
...and finally grow up...



... or not ? ... :p]]> zwans http://bpeers.com/blog/index.php?itemid=410 Fri, 14 Nov 2008 17:32:12 -0500 <![CDATA[FACTS'08 - VII - DDR]]> http://bpeers.com/blog/index.php?itemid=409
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... and that's it from me for this year.

Thank you,
and goodnight.]]> belgie http://bpeers.com/blog/index.php?itemid=409 Wed, 12 Nov 2008 17:33:42 -0500 <![CDATA[FACTS'08 - VI - Artists]]> http://bpeers.com/blog/index.php?itemid=408
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I am so badass, I can draw whatever you ask and I don't even need to sit down.

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In case you didn't recognize them the first time: now with costume :)

facts 2008 convention gent ghent belgium scifi anime games cosplay allo allo arthur bostrom sue hodge officer crabtree mimi labonq signing sessions actors ]]> belgie http://bpeers.com/blog/index.php?itemid=408 Mon, 10 Nov 2008 17:46:44 -0500 <![CDATA[FACTS'08 - V - U Was Weer Geweldig - bis]]> http://bpeers.com/blog/index.php?itemid=407
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facts 2008 convention gent ghent belgium scifi anime games cosplay bare feet staff ]]> belgie http://bpeers.com/blog/index.php?itemid=407 Thu, 06 Nov 2008 18:23:44 -0500 <![CDATA[FACTS'08 - IV - More Goodies]]> http://bpeers.com/blog/index.php?itemid=406
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facts 2008 convention gent ghent belgium scifi anime games cosplay props tabletop strategy game castle dragon blue magic banner white defense ]]> belgie http://bpeers.com/blog/index.php?itemid=406 Tue, 04 Nov 2008 17:53:26 -0500 <![CDATA[Bioshock rant]]> http://bpeers.com/blog/index.php?itemid=405

1. I save up on armor piercing ammo, run up to a Big Daddy, unload everything I've got, and he hardly has a scratch. Many hours later, I have the idea to take a photograph of said beast, and Research reveals that "armor piercing now actually works against Big Daddies". Laaaame.

2. A Rosie does not pathfind its way around a burning corpse. I don't care, maybe it's immune to fire.. no wait, it's not, so it takes damage, then it mysteriously knows that I set that guy on fire, ergo I'm trying to damage Rosie and there we go again, a Rosie on your ass. This, after going to great lengths to take out all opposition without damaging Rosie, because, you know, with my current health and ammo, I don't want to deal with that thing right now.

3. If you freeze a Big Daddy with the nitrogen gun, and then throw a couple of grenades at it.. you wear down the layer of ice instead of doing damage. So basically you just added more armor. Eh, didn't these guys see Terminator 2.

Sorry, needed to get this out of my system :p]]> zwans http://bpeers.com/blog/index.php?itemid=405 Mon, 03 Nov 2008 18:01:53 -0500 <![CDATA[FACTS'08 - III - U Was Weer Geweldig]]> http://bpeers.com/blog/index.php?itemid=404
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facts 2008 convention gent ghent belgium scifi anime games cosplay strategy game table top tabletop thunderbolts nomnomnom ]]> belgie http://bpeers.com/blog/index.php?itemid=404 Fri, 31 Oct 2008 18:50:34 -0400