Shading Problem 12 replies

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Juanxz

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12th June 2009

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#1 8 years ago

Ok so I have a shading problem in Far Cry 2 and in Battlefield Bad Company 2. I get a lot of jagged shading. I also get some weird shadows, you can see this in the picture with the blue container thingy. What do I have? A low shader model?

2802xkl.png This is the weird effect. 11vr4zn.png




kow_ciller

Gettin' hardware chilly

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16th June 2004

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#2 8 years ago

Turn on AA and see if it goes away.

But I'm not sure AA would even take that away, thats hardly something you would notice most of the time anyway (although, you apparently noticed it)




Sgt. D. Pilla

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23rd October 2007

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#3 8 years ago

I notice it all the time too lol. Only had the issue with my 4890s and 4870 though, never with my 8800 or my 260 :( I miss them :(

Try antistropic filtering and a higher shadow level.




Guest

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#4 8 years ago

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Juanxz

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#5 8 years ago

Anisotropic filtering wont help. I think it has something to do with the shader version or something. I had full AA, full AF and full Shading. It still showed those strange lines.




Sgt. D. Pilla

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#6 8 years ago
Anisotropic filtering wont help

Incorrect. It may very well help, if he doesn't have it set, or has it set at a very low level it will help.

It's nothing to do with the shader or shader version, every card since the nVidia 7 series and upwards supports SM2.0 and that's all that is required for BC2 and FarCry 2. The games in question. Developers develop shaders to a specific model, typically SM2 as it's most widely supported and has a variety of improvements over SM1. SM3 and 4 is rarely used as it's not supported terribly much, particularly SM4.

Anisotropic Filtering is the process of sharpening while at the same time smoothing textures on oblique surfaces, such is seen in the cylinder screenshot above and most of the others. While shadows are not done via textures, they are applied to texture surfaces and in particular the Bumb, MIP and Normal Maps. Which is where this issue arises, the Mappings cause an extreme angle for the shader to apply the shadows on, so applying Anisotropic filtering may indeed help.




Juanxz

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12th June 2009

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#7 8 years ago

Sgt. D. Pilla;5321721Incorrect. It may very well help, if he doesn't have it set, or has it set at a very low level it will help.

It's nothing to do with the shader or shader version, every card since the nVidia 7 series and upwards supports SM2.0 and that's all that is required for BC2 and FarCry 2. The games in question. Developers develop shaders to a specific model, typically SM2 as it's most widely supported and has a variety of improvements over SM1. SM3 and 4 is rarely used as it's not supported terribly much, particularly SM4.

Anisotropic Filtering is the process of sharpening while at the same time smoothing textures on oblique surfaces, such is seen in the cylinder screenshot above and most of the others. While shadows are not done via textures, they are applied to texture surfaces and in particular the Bumb, MIP and Normal Maps. Which is where this issue arises, the Mappings cause an extreme angle for the shader to apply the shadows on, so applying Anisotropic filtering may indeed help.

It shouldn't affect AF from close by. Low AF is only seen on far away items. GGDSG_22.jpg




*Daedalus

A Phoenix from the ashes

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18th April 2006

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#8 8 years ago
Juanxz;5321815It shouldn't affect AF from close by. Low AF is only seen on far away items. GGDSG_22.jpg

Not true. AF is affacted by the angle of an object relative to the observer. It so happens that most far-off objects have an extreme angle, but so does that oil tanker in the picture.




Juanxz

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#9 8 years ago

Oh, I didn't know that. I'll try increasing the AF.




Juanxz

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#10 8 years ago

Didn't work. Increasing AF didn't change a thing.




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