Hi,

i experiment with HSLS and got an error when try to change Tex-Coordinates:

float4 MyShader( MYSHADER_PS_IN In) : COLOR
{
float4 color;
float4 shadow;

In.Tex0.y = In.Tex0.y * 0.5; // <- MAKES ERROR

color = tex2D( sblock, In.Tex0.xy);
shadow = tex2D( sshadow, In.Tex1.xy);

color = color * shadow;

return color;
}

Is that not possible?

Oh,

it needs PS 1.4 minimum.

that's becasue you are changing the tex coords in the pixel shader.. only 1.4 and above can do this in this way.. if you want lower shader versions, do this in the vertex shader.