Hello,
I am trying to use d2deffects with custom shaders to create a depth based pixel shifitng shader
So the px shader output is something like this : return InputTexture1.Sample(InputSampler, newcoord);
Like always, dx will slice the textures into subresources into sizes of power of 2 for GPU processing. In my current windowsize, they sliced it into
4 1024x512 texture from a input 1920x 1080 texture.
This is a sample output of the shader
The shader tries to shift the center part of the texture to the right.
What it did was to sample the texture with an offset to the left,
but when texture slice 2 passes the PS
It does not try to sample the neighbour subresource.
Why is this so? How do I provide the correct texture for it to sample?
Full code:
PXshader
Texture2D InputTexture1 : register(t0);
Texture2D InputTexture2 : register(t1);
SamplerState InputSampler : register(s0);
cbuffer constants : register(b0)
{
float zeroplane : packoffset(c0.x);
float depthfactor : packoffset(c0.y);
float dispersion : packoffset(c0.z);
float currview : packoffset(c0.w);
float maxview : packoffset(c1.x);
float height : packoffset(c1.y);
float width : packoffset(c1.z);
float dpi : packoffset(c1.w);
};
float4 main(
float4 pos : SV_POSITION,
float4 posScene : SCENE_POSITION,
float4 uv0 : TEXCOORD0,
float4 uv1 : TEXCOORD1
) : SV_Target
{
float db_depthfactor =100.0f;
float db_zeroplane =128.0f;
float db_dispersion = dispersion;
float2 dist;
//float distance = length(toPixel * (96.0f / 96.0f)) * uv0.z;
float w, h,ww,hh, level;
float4 depth = InputTexture2.Sample(InputSampler, uv0.xy);
InputTexture1.GetDimensions(w,h);
InputTexture1.GetDimensions(1,ww,hh, level);
float shift = depth.r*256.0;
shift = ((shift - db_zeroplane) / 256.0) * -1 * db_dispersion * uv0.zw; // /w; //
float2 newcoord = uv0.xy + float2(shift, 0);
float4 text = InputTexture1.Sample(InputSampler, newcoord);
return text;
}
