I have the FXAA shader but it's so convolouted. Looked for a tutorial online but nothing turned up.


Anyone know where I can find documentation on FXAA and it's implememtation?

I am not sure which part you are having a difficult time with.

The download is a "h" file (header) with tons of macro's (defines). I only need it for the PC. My existing shaders are all FX files and for this specific application (not a game) that requires the AA, it is not written in C++.

Prior to the new requirements, hardware multisampling was sufficient but now they want to take screenshots. I was unable to provide multisampling when rendering to a surface for screen shots- hence, I need an AA alternative.

Will FXAA work with PS v2.0?

Does FXAA access require C++ implementation?

How does FXAA hold up on non- nvidia hardware?

These are the things I'm having a difficult time with...

To add to this, I'm also finding it difficult to create a full screen triangle. How can a triangle be full screen when my backbuffer and monitor are rectangular in shape?

Is it possible to use a sprite and pass that in?

My shader fails after adding the line:#include "Fxaa3_11.h"

IS FXAA SM 2.0 Compatible?

To add to this, I'm also finding it difficult to create a full screen triangle. How can a triangle be full screen when my backbuffer and monitor are rectangular in shape?

The way to do this is to create a triangle that is big enough so that the rectangle of the backbuffer fits inside. You can also use a full screen quad, if it is easier for you.

[color="#1C2837"]My shader fails after adding the line:#include "Fxaa3_11.h"
IS FXAA SM 2.0 Compatible?

I think it is. Did you put [font="Courier New"]#define FXAA_PC 1[/font] before the include?

Did you put [font="Courier New"]#define FXAA_PC 1[/font] before the include?

Yes, at the top of my shader I put the following:
#define FXAA_PC 1

#include "Fxaa3_11.h"



and it fails to compile. If I only add the include or only the define, then it compiles but with both of them it fails.

Do you have a way to tell why it fails to compile? Looking at the error message of the compiler e.g.

[quote name='smasherprog' timestamp='1314736896' post='4855616']
I am not sure which part you are having a difficult time with.

The download is a "h" file (header) with tons of macro's (defines). I only need it for the PC. My existing shaders are all FX files and for this specific application (not a game) that requires the AA, it is not written in C++.

Prior to the new requirements, hardware multisampling was sufficient but now they want to take screenshots. I was unable to provide multisampling when rendering to a surface for screen shots- hence, I need an AA alternative.

Will FXAA work with PS v2.0?

Does FXAA access require C++ implementation?

How does FXAA hold up on non- nvidia hardware?

These are the things I'm having a difficult time with...

[/quote]

FXAA works great, even on non NV hw. We used it in our commercial project, and this was a concern for us as well. Turns out it was not a problem.
FXAA requires no c++ side implementation, other than a full screen pass. (draw fullscreen quad, set shader, pass in main RT, output to backbuffer or RT of choice).
I don't remember any problems with FXAA on sm2, other than we had to disable the higher quality versions as it resulted in more instructions than supported by sm2. (Memory is a bit hazy though, so don't take my word for it).