NVIDIA Filtering

Zardon · Nov 2, 2003, 12:14 PM

In the meantime the expression "brilinear" has been established for Nvidia's towards bilinear filtering shifted pseudo-trilinear filtering. Although this term is semantically nonsense, we use it in this column.

There is an alarming development for a while: Newer Cards and/or newer drivers lower the image quality without being asked to do so. On a GeForce4Ti 4200 a better texture image quality (via anisotropic filtering) can be produced with current drivers (compared to a GeForceFX 5900 Ultra). On the other side the following is correct: The 4x-FSAA-Quality of the GeForce256 is by default better as with GeForce3 (and also as with GeForce 5900 Ultra). Because here stands 4x ordered grid supersampling vs. 4x ordered grid multisampling. But here it's not called "a step back".

Read here

Chaos · Nov 2, 2003, 01:10 PM

Interesting stuff.....so correct me if I'm wrong here.....because of the way their hardware designs handle varies from card line to card line; and because of this the older nvidia products will actually produce better quality texture rendering than the newer FX cards

zerodamage · Nov 2, 2003, 04:36 PM

That is what it sounds like to me. I honestly never liked the way my old GeForce256 did AA and AF and what not.

BWX · Nov 3, 2003, 09:40 AM

http://www.3dcenter.org/artikel/2003..._b_english.php

The article is talking about trlinear filtering and anisotropic filtering using "angle specific optimizations"

"Now angle-optimization is not obligatory in most drivers. For a short time, the user is forced to apply only a maximum of 2° anisotropic filtering except for the primary texture stage. [color=yellow]In Max Payne, where certain basic textures are on stage 1, this is clearly visible: blur.[/color] The GeForce4 Ti series could be reconfigured by the registry or – more easily – by means of tools like RivaTuner or aTuner. This makes sense as an option (unfortunately, newer drivers do not support this anymore) but should always remain an "opt-in" choice."

I noticed this blur in MP2- I first saw it going into the warehouse on the garage doors when standing back quite a ways away. I know I had all my settings on the highest quality in the drivers AND the game and still saw banding on the doors- big huge lines that past the line all the textures are blurred badly..

- I didn't know what was going on until know. This article explains it. I know ATI uses this "angle specific optimization" But usually I don't see it. Textures at an angle usually just appear a little more blurry- I'll post a pic if I still have the game saved at that level.

Nov 2, 2003, 12:14 PM	#1
Zardon DriverHeaven Founder Join Date: May 2002 Posts: 32,480 Rep Power: 177	NVIDIA Filtering In the meantime the expression "brilinear" has been established for Nvidia's towards bilinear filtering shifted pseudo-trilinear filtering. Although this term is semantically nonsense, we use it in this column. There is an alarming development for a while: Newer Cards and/or newer drivers lower the image quality without being asked to do so. On a GeForce4Ti 4200 a better texture image quality (via anisotropic filtering) can be produced with current drivers (compared to a GeForceFX 5900 Ultra). On the other side the following is correct: The 4x-FSAA-Quality of the GeForce256 is by default better as with GeForce3 (and also as with GeForce 5900 Ultra). Because here stands 4x ordered grid supersampling vs. 4x ordered grid multisampling. But here it's not called "a step back". Read here

Nov 2, 2003, 01:10 PM	#2
Chaos Number Nine Join Date: May 2002 Location: Nova Scotia Posts: 5,269 Rep Power: 165 System Specs	Interesting stuff.....so correct me if I'm wrong here.....because of the way their hardware designs handle varies from card line to card line; and because of this the older nvidia products will actually produce better quality texture rendering than the newer FX cards __________________

Nov 3, 2003, 09:40 AM	#4
BWX unplugged Join Date: Nov 2002 Location: USNY Posts: 19,665 Rep Power: 109 System Specs	http://www.3dcenter.org/artikel/2003..._b_english.php The article is talking about trlinear filtering and anisotropic filtering using "angle specific optimizations" "Now angle-optimization is not obligatory in most drivers. For a short time, the user is forced to apply only a maximum of 2° anisotropic filtering except for the primary texture stage. [color=yellow]In Max Payne, where certain basic textures are on stage 1, this is clearly visible: blur.[/color] The GeForce4 Ti series could be reconfigured by the registry or – more easily – by means of tools like RivaTuner or aTuner. This makes sense as an option (unfortunately, newer drivers do not support this anymore) but should always remain an "opt-in" choice." I noticed this blur in MP2- I first saw it going into the warehouse on the garage doors when standing back quite a ways away. I know I had all my settings on the highest quality in the drivers AND the game and still saw banding on the doors- big huge lines that past the line all the textures are blurred badly.. - I didn't know what was going on until know. This article explains it. I know ATI uses this "angle specific optimization" But usually I don't see it. Textures at an angle usually just appear a little more blurry- I'll post a pic if I still have the game saved at that level. __________________ Last edited by BWX; Nov 3, 2003 at 09:56 AM.

Nov 2, 2003, 04:36 PM	#3
zerodamage HardwareHeaven Extreme Member Join Date: May 2003 Location: Virginia, USA Posts: 3,478 Rep Power: 0 System Specs	That is what it sounds like to me. I honestly never liked the way my old GeForce256 did AA and AF and what not.