DX10 - AA Help

[Zangoose 1,631]

Hi all,

I need some help in getting AA turned on with DX10 enabled. I am not sure where I am going wrong but anything I try it doesn't seem to enable the AA in FSX. I have made sure that it is turned on in the game settings and that the drop down is set to the correct one. I've also made sure that it's been told to put 4x or 8x in the actual FSX.cfg. I even tried messing about with the normal AMD control panel to see if that would have any affect. I did try RadeonPro to see if that would make any difference but doesn't seem to do it either.

 

I have a 6870 and on Windows 8.1 if that makes any difference.

 

Anyone have any idea?

[SteveFx 258]

Are you sure that your problem is basic aa?

 

The free flight screen gets no aa in dx10. It doesn't in dx9 either but it can be forced on externally for dx9 but not dx10.

 

AA is applied to non transparent objects against the background not to textures - other techniques are required here.

 

So look at the edge of a wing against the ground that should be come more or less jagged as you enable/disable the forms of aa you refer to.

 

For textures normal AA plays no part. The techniques here are to use super sampling AA, make sure that textures are MIPMapped , make sure that texture max load is set correctly ( if you make changes to settings it will revert to 1024, which may be too low for payware planes)

 

here is an excellent post From Charles Earl on setting up AA in DX10

 

http://forum.avsim.net/topic/421849-dx10-fixer-atiamd-aa-and-vsync-guide/

[Zangoose 1,631]

Are you sure that your problem is basic aa?

 

The free flight screen gets no aa in dx10. It doesn't in dx9 either but it can be forced on externally for dx9 but not dx10.

 

AA is applied to non transparent objects against the background not to textures - other techniques are required here.

 

So look at the edge of a wing against the ground that should be come more or less jagged as you enable/disable the forms of aa you refer to.

 

For textures normal AA plays no part. The techniques here are to use super sampling AA, make sure that textures are MIPMapped , make sure that texture max load is set correctly ( if you make changes to settings it will revert to 1024, which may be too low for payware planes)

 

here is an excellent post From Charles Earl on setting up AA in DX10

 

http://forum.avsim.net/topic/421849-dx10-fixer-atiamd-aa-and-vsync-guide/

 

Thanks for the reply. It seems on payware aircraft the text and so on is what has the jaggies so "Emirates" isn't smooth as you would expect it to be on the PMDG 777.

[SteveFx 258]

yes that's almost certainly lack of mipmapping.

 

Either mipmap the textures or use SSAA if you can - in fact if you read the post two below yours

 

http://forum.avsim.net/topic/429004-fps-issue-with-clouds/

 

in spite of the title it becomes a discussion of mipmapping with pictures!

[Zangoose 1,631]

yes that's almost certainly lack of mipmapping.

 

Either mipmap the textures or use SSAA if you can - in fact if you read the post two below yours

 

http://forum.avsim.net/topic/429004-fps-issue-with-clouds/

 

in spite of the title it becomes a discussion of mipmapping with pictures!

 

Thanks. Is there a way to know if RadeonPro is working and is enabling the settings I change in FSX? As mipmapping is on and at the highest it can go but nothing has been changed within FSX itself. So I'm not sure if FSX is going by the settings from RadeonProor not... hmm

[SteveFx 258]

The problem is that (as described in the thread I pointed you at) payware aircraft often don't contain any mipmaps.

 

Therefore when looking at a plane that occupies say 100x100 pixels on the screen and an texture size of 500x500 the poor GPU does the best it can at picking likely pixels to reduce the image size but it isn't very good at it.

 

The best solution is to use one of the tools referenced by Paul in that thread to create mipmaps which are a series of smaller downscaled versions of each texture calculated more slowly and precisely to give the best appearance at that image size.

 

The only other approach is to use a post processing FXAA filter such as sweetFX to soften and blur the image.