
	Where results make sense

Topic: Carmacks Reverse

Related Topics

John Carmack

Id Software

Surface caching

Doom 3

November 25

Markhor

Havana

	[H]ard\|Forum - Doom 3: id vs. Creative
		A while back Carmack posted as to why EAX wouldn't be in the game, and he said it was because now his method allows him to do what he wants with the sound, not just add crappy reverb effects.
		Than about a year ago Carmack came out and said he would be using said technology in Doom 3, not knowing that Creative has a patent on it.
		Carmack's Reverse (what the technique is commonly known as) was discussed in length on multiple high-profile sites among developers and those with a high degre of interest in development.
	www.hardforum.com /printthread.php?t=784833 (1769 words)

	Beyond3D Forum - creative labs teaches Carmack a thing or two about shadows? (Site not responding. Last check: 2007-10-12)
		The technique known as 'Carmacks reverse' was in fact developed and patented before it was known as Carmacks reverse.
		If your using reverse stencil shadows in anything then yes, there are legal issues you should talk to a lawyer about.
		The Creative patent is to do with the idea of testing for being in shadow from "far to near" (aka ZFail rather than ZPass) which then avoids having to deal with the problem with holes when the shadow volume goes through the front clipping plane.
	www.beyond3d.com /forum/printthread.php?t=12383 (1419 words)

	carmacks - OneLook Dictionary Search (Site not responding. Last check: 2007-10-12)
		We found one dictionary with English definitions that includes the word carmacks:
		Tip: Click on the first link on a line below to go directly to a page where "carmacks" is defined.
		Carmacks : Columbia Gazetteer of North America [home, info]
	www.onelook.com /?w=carmacks (69 words)

	Z Pass to Z Fail - Capping shadow volumes - GameDev.Net Discussion Forums
		Frantic research on Google and intense study of Hun Yen Kwoon’s Theory of Stencil Shadow Volumes has led me to understand that this is a near plane clipping problem often solved by implementing the Z Fail algorithm (Carmack’s Reverse).
		2-to use the back facing polygons as the front cap after reversing their normal.this will be a good solution if you are subtracting the diffuse lighting value for the pixels in shadow but if you are using a gray square on the screen it won't give you the right result.
		Posted - 9/12/2003 6:32:37 AM There are a couple speedups that can be easily understood and REALLY help out your frame rate, as Carmack's Reverse isn't [nearly] as fast as the Z-Pass method as you have roughly triple the number of polygons in Z-Fail as Z-Pass.
	www.gamedev.net /community/forums/viewreply.asp?ID=1104227 (2094 words)

	Canoe trip Yukon River Yukon Canada Canadian gold rush canoeing adventure Klondikers Historical sites Wildlife viewing ...
		The Yukon River is a living museum, where along the banks lie relics of the past Klondikers who used this waterway as a main route to the large gold deposits discovered in the area a hundred years ago.
		Prerequisites: You have canoed previously and know the rudimentary strokes: bow, reverse, "j", draw, pry and sweep.
		You are comfortable paddling in the bow and working with another partner or you have river reading skills and can control the canoe from the stern while working with another partner.
	www.adventures.ca /gasnet/282-17.htm (548 words)

	creative labs teaches Carmack a thing or two about shadows? - Beyond3D Forum
		To boldly go where every man has gone before, and said it was really really cool.
		Carmack has never seemed so hot about EAX and can't blame him.
		One time, in #beyond3d at irc.freenode.net, Wavey was drunk and made Rys cry like a little girl.
	www.beyond3d.com /forum/showthread.php?t=12383 (1640 words)

	Blue Kennels ¦ Journal Season 2003/2004 ¦ The 2nd Race of the season
		The night was a bit noisy, many loose teams and dogs, but at least I could use that time to get up and massage the dogs, who are not used to run that fast on hard trails.
		The restart was set for 10 a.m., thank god no reverse start.
		The run home was even faster with only 5 hrs 51 minutes, and for most of the way I had John Little chasing me right in sight, which made me run up the hills.
	www.dogsleddingtheyukonquest.com /e/tagebuch/2004/2003-12-20.php (581 words)

	Carmack's Reverse - (stencil shadows) here it is. (Site not responding. Last check: 2007-10-12)
		Carmack's Reverse - (stencil shadows) here it is.
		After a number of weeks of trying to optimize a number of different 'routines' i came up with for creating shadow volumes of unboned meshes, i concluded that a fast way of dynamicaly drawing a satisfactory number of shadows is not really possible using b3d commands alone.
		Anyway, here is the code based on Tom's code, only now Depth-Fail (Carmacks reverse) technique is used.
	www.blitzbasic.com /Community/posts.php?topic=42940 (1260 words)

	Find a local sign company in Yukon (YT) to service / repair channel letters
		Standard channel letters have a U-channel base with a colored Plexiglas face.
		Reverse channel letters have metal faces and sides, but a clear plastic backing.
		Mounted an inch or two away from the wall, at night these letters create a halo-lit effect.
	www.signsearch.com /localsigncos/search_signcos.cfm/YT3ST3 (188 words)

	CodeSampler.com - Direct3D and OpenGL code samples for game and graphics programming
		I received a new user sample from ViLiO concerning shadow volumes and how to use the Z-Fail technique to render correct shadows when the viewing position is inside the shadow volume.
		This technique is also know as Carmacks' Reverse.
		I think many of you will find it very useful since my original shadow volume sample didn't incorporate this technique.
	www.codesampler.com (1452 words)

	Doom 3. Latest News [Archive] - Halflife2.net
		It is a great book it explains the life of John Carmack, John Romero, and id Software.
		Carmack also happend to be the same guy who said "Story in a game is just like a story in a porn film - it's there but not required." In the end, Carmack had to given into the rest of the industry and had to make a proper story-based version of his game (Doom 3).
		Carmacks reverse is a clever little thing :)
	www.halflife2.net /forums/archive/index.php/t-28325.html (2032 words)

	nV News Forums - Doom3 EAX Driver Out
		no Creative apparantly had a patent on a algorithm used in the renderer, think it was even "Carmacks reverse", and they sort of flmailed id with that..
		John Carmack could have rewritten it using a two pass method that would have been slower and not violated the patent as ID didn't want to have to license it from creative thus bumping up the cost of doom 3.
		Instead they reluctantly worked out a deal with creative that required ID to add creative specific enhanced EAX support to doom 3 (which helps market creative cards) in exchange for allowing ID to use their shadow rendering patent without paying royalties.
	www.nvnews.net /vbulletin/printthread.php?t=48768&pp=40 (930 words)

	Neowin.net - Where unprofessional journalism looks better - Any ladies up for a night a la Geek? (Site not responding. Last check: 2007-10-12)
		Yes, the bidding presently stands at £40 at the eBay auction offering an exotic evening out in Oxford filled with totally fascinating conversation, all about computer programming.
		Including such riveting topics as "optimal byte code", "reverse polish notation", "Vertex buffer optimisations", and "how it works?...
		Blimey, these games programmers really know how to show a girl a good time.
	www.neowin.net /comments.php?id=10720&category=main&highlight=Keldyn (494 words)

Try your search on: Qwika (all wikis)