mister mister... better search another time. there are many blur shaders here. look out blur, bloom and this stuff..
however. here you have a pixelshader for a radial (speedymotion) blur:
Code:
float4 noiseps2(
float2 texCoord: TEXCOORD0,
uniform float cf1,
uniform float cf2,
uniform float cf3,
uniform float alpha
) : COLOR
{
float4 base=tex2D(basemap,texCoord);
float4 result=float4(0,0,0,0);
for(float i=0;i<5;i++)
{
result+=tex2D(basemap,texCoord-texCoord*(i/100)-i/200);
}
return (result+1-base)/(7+2*sin(vecTime.w/2300));
}
the basemap contains the rendered view.
you can change the value (i used 5) for the float i loop. depends how fast you want it. you can add different passes with different offsets to create more blur.
look out for "poisson" in context with blur. but i think that stuff already is somewhere here.
also check out my page - there must be some usefull ressources for you.
good luck:)