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Forums - Sony Discussion - Realtime Ray Tracing in Killzone Shadow Fall

Kynes on 23 April 2013
ethomaz said:

Kynes said:

Calling ray tracing to this approximation is misleading, but it seems that you are ok with being mislead by Sony developers. It's like saying the 2004 ATI X800 subsurface scattering demo is raytraced, because they used an approximation with depth maps to raytracing on translucent surfaces. I know you like your PR catchphrases, but anyone with a bit of knowledge can smell the bullshit from a distance.

"it is definitely misleading when the idea of a ray-based renderer, the wonderful future tech of tomorrow-land, is being talked about in use now. Without a reason to develop some new naming convention for non-intersect straight line evaluations and whatever approximations and shortcuts there are, I expect the confusion to escalate."

Oh God... it is not PR... it is a developer session.

There are no bullshit in this video or news... there are using ray-tracing in real time reflexion... the OP is pretty clear about that... Crysis 2/3 use that for the same pourpose too.

There are no confusion here... please stop.

They are doing an approximation, do you understand the word approximation? Read the Beyond3D thread, not only the first post. That technique was used even on the Stalker games, several years ago. Full pipeline raytracing is the holy grial of graphics, is an aberration to call this raytracing. Is like saying FXAA is a mathematically correct antialiasing filter, when it's nothing more than a blur filter.

PS: The op text is a quote of a guy who doesn't understand what he is talking about, and is corrected by several users on the same thread

PS2: When you are doing raytracing, you don't need pre-baked lightmaps, or cubemaps, or any way to emulate the lightning, as the raytracing provides all the lightning info you need.

PS3: Read this and you will undestand a bit more of this "Raytracing" (lol) technique: http://www.crydev.net/viewtopic.php?p=800381&sid=beacf2e088e9916e133b90970b4521d1#p800381



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KingofTrolls on 23 April 2013

I really dont understand why u all argue with ethomaz when he just talks certain facts.



Sal.Paradise on 23 April 2013

It certainly looks lovely and very natural. This particular part of the Jimmy Fallon demo stood out to me when I watched it, now I know what the effect is. 



ethomaz on 23 April 2013

Kynes said:

They are doing an approximation, do you understand the word approximation? Read the Beyond3D thread, not only the first post. That technique was used even on the Stalker games, several years ago. Full pipeline raytracing is the holy grial of graphics, is an aberration to call this raytracing. Is like saying FXAA is a mathematically correct antialiasing filter, when it's nothing more than a blur filter.

PS: The op text is a quote of a guy who doesn't understand what he is talking about, and is corrected by several users on the same thread

PS2: When you are doing raytracing, you don't need pre-baked lightmaps, or cubemaps, or any way to emulate the lightning, as the raytracing provides all the lightning info you need.

PS3: Read this and you will undestand a bit more of this "Raytracing" (lol) technique: http://www.crydev.net/viewtopic.php?p=800381&sid=beacf2e088e9916e133b90970b4521d1#p800381

I see but nobody is expecting a real raytracing use... it is only for some little effects ... thanks for share the link.



ethomaz on 23 April 2013
Sal.Paradise said:

It certainly looks lovely and very natural. This particular part of the Jimmy Fallon demo stood out to me when I watched it, now I know what the effect is.

lol

Did you guys watch the videos frame by frame? Serius question... In any case that effect can be deu the YouTube heavly compression.



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Sal.Paradise on 23 April 2013
ethomaz said:
Sal.Paradise said:

It certainly looks lovely and very natural. This particular part of the Jimmy Fallon demo stood out to me when I watched it, now I know what the effect is.

 

lol

Did you guys watch the videos frame by frame? Serius question... In any case that effect can be deu the YouTube heavly compression.

I'm...saying...I...like it. Lol. 



ethomaz on 23 April 2013

Sal.Paradise said:

I'm...saying...I...like it. Lol.

lol I was thinking about sacarms.

What did you like? I want to understand



Sal.Paradise on 23 April 2013
ethomaz said:

Sal.Paradise said:

I'm...saying...I...like it. Lol.

lol I was thinking about sacarms.

What did you like?

The light/reflection on the stair wall. 



ethomaz on 23 April 2013
Sal.Paradise said:
ethomaz said:

Sal.Paradise said:

I'm...saying...I...like it. Lol.

lol I was thinking about sacarms.

What did you like?

The light/reflection on the stair wall.

Well for me looks weird like video codec compression.



Sal.Paradise on 23 April 2013
ethomaz said:
Sal.Paradise said:
ethomaz said:

Sal.Paradise said:

I'm...saying...I...like it. Lol.

lol I was thinking about sacarms.

What did you like?

The light/reflection on the stair wall.

Well for me looks weird like video codec compression.

Watch the video again :)