The Matrix Reloaded

Natoma

Veteran
It's 5 pages long, but has some interesting tidbits in terms of advancing graphics technology.

http://www.wired.com/wired/archive/11.05/matrix2.html

If the dojo fight in The Matrix was a kung fu sonata, the Burly Brawl is a symphony. Neo tears the sign from the ground and wields it as a kendo sword, vaulting pole, and battering ram. A woman walking by can't believe what she's seeing; suddenly her body is hijacked, she drops her grocery bag, and another Smith charges into the fray. Whole battalions of Smiths arrive, mount assaults, attack in waves, scatter, regroup, and head back for more. (At ESC, one massive pile-on was dubbed the "Did someone drop a quarter?" shot.) In the thick of it, Neo is dancing, chucking black-tied bodies skyward, pivoting around the signpost, and using shoulders as stepping-stones over the raging river of whup-ass.

Fans will wear out their remotes replaying the scene on DVD, but what they won't see, even riding the Pause button, is a transition that happens early on. When Neo and Agent Smith walk into the courtyard, they are the real Reeves and Weaving. But by the time the melee is in full effect, everyone and everything on the screen is computer-generated - including the perspective of the camera itself, steering at 2,000 miles per hour and screaming through arcs that would tear any physical camera apart.

The standard way of simulating the world in CG is to build it from the inside out, by assembling forms out of polygons and applying computer-simulated textures and lighting. The ESC team took a radically different path, loading as much of the real world as possible into the computer first, building from the outside in. This approach, known as image-based rendering, is transforming the effects industry.

Then Reeves and Weaving each sat down on a stage in front of five Sony HDW-900 video cameras. The massive datastreams from these cameras - one gigabyte a second - were treated like holy water; even the cameras' color-correction software was disabled to prevent any loss of data.

How deep did the rabbit hole go? A cast of each actor's head was sent to a company called Arius 3D, makers of ultrahigh-resolution scanners employed in 1999 to archive the works of Michelangelo. The Arius scanner is accurate down to 25 microns - the diameter of a mold spore. To get the clothing simulations just right, ESC sent swatches of Reeves' black cassock and Weaving's jacket to a company called Surface Optics, which builds devices to measure a property of light called the bidirectional reflectance distribution function. Surface Optics happened to have one machine on hand scheduled to ship to Lockheed Martin a month later, where it was to be assigned to its usual task: evaluating the reflectivity of paint on stealth bombers.

:oops:

The ability to create photorealistic virtual human beings raises unsettling questions, especially in conjunction with the means to cut-and-paste them into any landscape. These questions troubled Gaeta himself so much that, a few years ago, he wrote a letter alerting President Clinton to the fact that such technology could be used for purposes of mass deception. (The letter was never answered.)

As it happens, one group deeply interested in the new breed of hyperrealistic CG is the military. Darpa is fast-tracking image-based rendering and lighting for use in immersive battle simulations. In 1999, the US Army launched the Institute for Creative Technologies at USC, where Paul Debevec - Borshukov's former mentor at Berkeley - is now the head of graphics R&D.

Gaeta recognizes the paradox. "You have these paranoid films about the Matrix depicting how people are put in a mental prison by misusing this technology, and you have the military constructing something like the actual Matrix. Or maybe our technology will become the actual Matrix, and we have inadvertently spilled the vial of green shit out onto the planet."

I'm so stoked to see this movie.

p.s.: Can someone translate this: bidirectional reflectance distribution function

into english please? hehe.
 
Natoma said:
p.s.: Can someone translate this: bidirectional reflectance distribution function

BRDF (bidirectional reflectance distribution function) is a function that desrcibes how much of a ray of light coming from a certain direction is reflected to a certain (other) direction.
So basicly this is:
f(incoming_light_dir, reflected_light_dir)

It is called bidirectional because:

f(incoming_light_dir, reflected_light_dir) = f(reflected_light_dir, incoming_light_dir)

The light directions are usually represented by two angles - so it's actually a 4 dimensional function - that means a lot of data if you want to measure it.
 
Image based rendering

It looks like image based rendering is going to be making an impressive splash this year. I can't wait to see the movie.

I wonder how image based rendering is going to affect the future direction of GPUs .
 
Sounds like super huge textures, which means insane bandwidth requirements, even with compression.

Bleh, I am waiting for games to catch up to last year, let alone go beyond the ideals of today. :)
 
Clearly they have cloned a thousand John Carmacks and are keeping them in vats of nVidia goop so that their brains can render the movie.
 
No idea about the renderfarm, but for storage they're using 2x BlueArc Si7500s (~10TB).

MuFu.
 
So basically, this Matrix will be even more mind-numbing than the last one?

Umm...if Neo already can just jump inside the agents and destroy them, why the hell would he waste time fighting them? Looks like it's going to be another Attack of the Clones. The score thus far: CGI-2, Plot-0.
 
Agents are just security programs in the Matrix, I'm sure it has patched the hole Neo used to get inside Agent Smith.
 
Crusher said:
Agents are just security programs in the Matrix, I'm sure it has patched the hole Neo used to get inside Agent Smith.

Hmm, anyone else just get the idea that maybe The Matrix is just an elaborate statement against Microsoft? :LOL:
 
Umm...if Neo already can just jump inside the agents and destroy them, why the hell would he waste time fighting them? Looks like it's going to be another Attack of the Clones. The score thus far: CGI-2, Plot-0.

The Matrix Reloaded involves a virus being inserted into the Matrix and none other than Neo and the Matrix gang is sent to find some guy with the cure.
 
PVR_Extremist said:
What a lame plot...!

So who inserts the Virus, the aliens? And why? To try to kill the humans?

I'm gonna see it anyhow like ;)

The aliens?! I think you need to watch the first one again. :LOL:

It's a must-see for me. Been downloading the Animatrix prequels almost religiously and can't wait for the three films to come out.

MuFu.
 
well this time matrix is going up against lord of the rings return of the king and before that two towers ... and gollem was the best thing since sliced bread. So i dunno .
 
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