Comments on: Pixel Shader Effects in WPF using .Net3.5sp1 Beta

By: SeveQ

SeveQ — Thu, 30 Jul 2009 21:44:15 +0000

Okay, I have found the problem… code was incomplete.

By: SeveQ

SeveQ — Thu, 30 Jul 2009 21:38:13 +0000

Hi there,

can you tell me why I get the following error when I try to compile the shader with Composer 2.5 (not beta)?

Error Error: Unrecognized RHS value in assignment: ‘implicitTexture’ XXX\Desaturate.fx 25

Error Error: ID3DXEffectCompiler: Error in type checking XXX\Desaturate.fx -1

Error Error: ID3DXEffectCompiler: There was an error initializing the compiler XXX\Desaturate.fx -1

Here is my shader code:

% Description of my shader.
% Second line of description for my shader.

keywords: material classic

date: YYMMDD

*/
#ifndef WPF
float Saturation = 0.5f;
#else
float Saturation : register(c0);
#endif

#ifndef WPF
sampler2D implicitSampler = sampler_state {
texture = implicitTexture;
AddressU = Clamp;
AddressV = Clamp;
MagFilter = Linear;
MipFilter = POINT;
MinFilter = LINEAR;
MagFilter = LINEAR;

};
#else
sampler2D implicitSampler : register(s0);
#endif

float4 DesaturatePS(float2 uv : TEXCOORD0) : COLOR {
float3 LuminanceWeight = float3(0.299, 0.578, 0.114);
float4 srcPixel = tex2D(implicitSampler, uv);
float luminance = dot(srcPixel, LuminanceWeight);
float4 dstPixel = lerp(luminance, srcPixel, Saturation);

dstPixel.a = srcPixel.a;

return dstPixel;
}

Thanks a lot!

By: rob

rob — Wed, 24 Sep 2008 22:28:09 +0000

Thanks Eric,
I’m completely snowed under on the current WPF project at work, so i haven’t been around on line much, but when i do get back , one of the first things i intend playing with is the final version of pixel shader API. I’ve had a quick look and there still seems to be some limitations but I’ll be better placed to play with it when im not working 18 hour days!
Thanks for reading!
Rob

By: Eric Rodewald

Eric Rodewald — Wed, 24 Sep 2008 21:05:55 +0000

Really liked this article. Touched on a few things the others haven’t been.. like up the command as an External Tool is very helpful.

By: rob

rob — Tue, 15 Jul 2008 15:25:26 +0000

Hi Robert!
That’s kind of odd, there are no restrictions on the images, and the page access count is quite high, i would have thought there’d have been more comments about broken images if that were the case. Maybe its something on your route that’s restricting access?

By: Robert

Robert — Tue, 15 Jul 2008 14:50:09 +0000

Also here are the images broken

Forbidden
You don’t have permission to access /rob/wp-content/uploads/2008/05/shader.png on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.