Half life 2 source code stolen

**Glirk Dient** · 10-09-2003

I would be interested to see how it works as well, Silvercord.

[email protected]

**~~Silvercord~~** · 10-10-2003

You're right BMJ, and if you download any movies about carmack talking about Doom3 they all involve him saying he's still trying to get his engine to run fast enough, and it probably won't ever be as fast as half life 2 if he uses fully dynamic stencil shadows (i don't think everything is or will be fully dynamic)

im not going to email this to both of you, i'm just going to post the idea, plus if i have said anything wrong this makes it more likely someone will catch it...it's not going to make a whole hell of a lot of sense unless you read some articles with pictures.

this is just the idea for doing a stencil shadow, to actually implement this you've got to do jumping jacks to get it to work (otherwise if you just perform a thing called ZPass stencil shadow tests the entire world goes into what is called negative shadow when the eye point is in inside a shadow volume, and it farks up...carmack's 'reverse' method actually takes even more steps and more tests)

dynamic shadows with the stencil buffer require a lot of calculations realtime by both the CPU and the video card you have to classify each triangle as facing a light or not facing a light by using dotproducts, then you have to find which edges are the silhouette edge by determining if an edge touches a front facing polygon on one side and a back facing polygon on the other side, then you have to actually create extended polygons that go from the light source through the silhouette edge polygons and you have to draw those into the stencil buffer which requires depth tests, and only after doing all of THAT crap you have what is in shadow, with a lightmap you simply do a second texture pass, and lightmapping algorithms are much easier and pre computed! you just trace a ray from each texel to each light and if the texel is blocked you don't take that light into account for that texel's color

EDIT: that really doesn't even fully describe the algorithm, that is just the steps you have to do in order to create shadow volume polygons. i have to go to school right now though (maybe i can post later)

**RoD** · 10-10-2003

Nice periods :P

thnx man

**CumQuaT** · 10-10-2003

U guyz know that the Beta has also been leaked? Just a thought to stir the pot...

**BMJ** · 10-10-2003

Yes I know - www.fragville.com/shader.gif <-- dig those shaders on the floor

... someone, showed this to me... yea

Carmack has been quiet for a while now... I'm sure he's trying to make things faster, he's not dumb at least - who knows what'll happen in the next 8 - 12 months.

**~~Silvercord~~** · 10-10-2003

quat, the beta of d3 or hl2?

i hope carmack doesn't really care. he's already said he is losing interest in game programming (this was over a year ago that I first found out, now he is competing for the XPrize with armadillo aerospace)

**BMJ** · 10-10-2003

Originally posted by Silvercord
(this was over a year ago that I first found out, now he is competing for the XPrize with armadillo aerospace)

Yea I heard about this, pretty cool IMHO

**~~Silvercord~~** · 10-11-2003

whatever makes one happy I suppose

EDIT: in my opinion it is basically impossible for game programmers to either get famous or rich now a days. I hate to say it but the whole 'oh I'll work on games now while I'm young and get into a game programming company when I'm older' mentality doesn't work and isn't realistic...that's why I'm going to major in math and get a real job

**Brian** · 10-12-2003

the leaked beta is extremely incomplete. I think its a snapshot from _before_ e3. Water appears as just white, and eyes and mouths are white too. None of the levels are even close to being finished. etc

**Brian** · 10-12-2003

have a screenshot

**CumQuaT** · 10-17-2003

Sure, the beta may be incomplete, but it's enough to whet our appetites until april next year, eh? (You guys DO know its been pushed back to april next year for the release don't you?)

**BMJ** · 10-17-2003

Originally posted by BMJ
April 2004?? WTF!??

**bennyandthejets** · 10-18-2003

I think I'm gonna cry

. Will we EVER play this game?!

**Glirk Dient** · 10-18-2003

*Sigh* I guess I will just have to play Star Wars Galaxies until then.

**nvoigt** · 10-18-2003

Well then, welcome to the world of Pet Wars (tm) Galaxies. ( If you are allready in-game, you know what I mean *g*

The one game that probably has the greatest number of Bugs and worst community<>developer communication ever.

But if they ever fix that two little points, it will be really fun

Rifle 0-0-0-0
BH 0-0-2-0 ( can you spell eyeshot ? )
CH 0-0-0-0 ( did I say Pet Wars ? )
Ranger 2-1-1-1
Master Marksman
Master Scout
Ahazi