*PICS* Pixel Shader Model 1.1 vs 2.0 vs 3.0

[warcrow]

This is probably a repost, but what the heck.


I read this over at HardOCP and figured some of you guys would find it interesting.


"Here is all of what NVIDIA PR had to say about the screenshots when they released them.


The following before-and-after images are from the CryEngine. Developer Crytek uses Shader Model 3.0 techniques (vs. 1.x shaders) to add more depth and realism to the scenes. Notice the more realistic look and feel when SM 3.0 is applied to the bricks and stones that make up the staircase. In the scene featuring the Buddha, the full image comes to life with the use of SM 3.0, with the technique applied to multiple objects."



- Here is the article on PS 3.0

- I found This comparison the most interesting.

WOW! I use to have an Ti4200. Then I picked up the 9700 PRO and am *loving* it! I'm wondering if the 6800 is going to get my money this round. I'm really looking foward to ATI's unveiling of their new technology so I can properly compair. My money will go to the better tech, no doubt.

 

[KristopherKubicki]

I dont remember where but i heard there was some controversy on whether or not the shader was really 2.0 or 1.1 :-X

Kristopher

 

[UlricT]

dude... this has been discussed to death. You cannot directly compare the examples given there. Unless it is the same scene (where the programmers have tried to do the same thing), visual comparision is useless to check shader realism.

 

[UlricT]

kris... what Kyle has done is to take some in-game screens from far cry using PS2.0 and compare it to the tech. demo which uses PS3.0. This is why I made the above statement.

 

[ArachPres]

Does the current ATi Radeon 9700 Pro/9800 Pro support Pixel Shader 2.0 or 2.0b?

 

[warcrow]

Originally posted by: ArachPres
Does the current ATi Radeon 9700 Pro/9800 Pro support Pixel Shader 2.0 or 2.0b?

2.0b?

 

[ArachPres]

Did I make that up? I surely hope not!

Can I pass that off as a very strange typo?

 

[warcrow]

Originally posted by: ArachPres
Did I make that up? I surely hope not!

Can I pass that off as a very strange typo?

Oh! No no, I just had not heard of 2.0b thats all. Whats 2.0b add?

 

[KristopherKubicki]

http://www.anandtech.com/news/shownews.html?i=22063

Take a look at the comments here.

 

[warcrow]

Originally posted by: KristopherKubicki
http://www.anandtech.com/news/shownews.html?i=22063

Take a look at the comments here.

Got it! Thanks Kris.

 

[Dman877]

Those don't even look like the same model... apples to oranges me thinks.

 

[flexy]

this HAS been discussed to death - and also how ridiculous is this alleged comparison PS2.0/PS3.0 ?.
It was somethign photoshopped comparing PS3.0 to PS1.0 (or no shaders at all)

Also..Nvidia stated that these effects 'are possible with PS2.0 OR PS3.0" and are NOT PS3.0 exclusive.

>>>
The following before-and-after images are from the CryEngine. Developer Crytek uses Shader Model 3.0 techniques (vs. 1.x shaders) to add more depth and realism to the scenes.
>>>

at least he admits it...again...this is pure NV 'propaganda' because you can do the SAME effects with PS2.0 on a radon9800 etc....and btw. did anyone at the presentation/at crytek/at nvidia point out the really weird worse image quality of the NV40 versus reference raster or radeon9800 ? (Which they refer as 'bug in farcry 1.1, which, for some eason only appears on NV drivers (Hint: "Shader Optimization")

 

[Soulkeeper]

hmm those pictures show a bigger difference than i thought

 

[KristopherKubicki]

Soulkeeper: yes they do. But they arent showing the same things so how much can we really divulge from them? :-X

Kristopher

 

[boran]

Originally posted by: flexy
[..]
at least he admits it...again...this is pure NV 'propaganda' because you can do the SAME effects with PS2.0 on a radon9800 etc....
[..]

as far as I can make out of the specs 2.0 can simulate everything 3.0 can do, but 3.0 can do it with much less of a performance hit. just like a PII 266 could render an image the same way a P4 could today, that doesnt make the P4 obsolete, it's just faster. there's a difference between the same at lower speed and the same at same speed... but it's just to soon to say what path prooves to be the most benificial, in six months we can conclude wether nVidia or ati made the right decision.

 

[bluemax]

I couldn't compare the pictures because they weren't the SAME scene for each. Sorry.... stairs up, stairs down? Two different statues? Come on..... that doesn't make for good comparison! Boooo!!! :disgust:

 

[Tab]

Get pics for the EXACT same scene.