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HLSL-Quelltext

TEXTURE ImageTex;
TEXTURE RandomTex;

float4x4 WorldViewProj;

sampler ImageSampler = sampler_state
{
    Texture = <ImageTex>;
    AddressU = Clamp;
    AddressV = Clamp;
    MIPFilter = Point;
    MinFilter = Linear;
    MagFilter = Linear;
};

sampler RandomSampler = sampler_state
{
    Texture = <RandomTex>;
    AddressU = Wrap;
    AddressV = Wrap;
    MIPFilter = Point;
    MinFilter = Point;
    MagFilter = Point;
};


struct VS_OUT
{
    float4 col : COLOR0;
    float4 pos : POSITION;
    float2 UV : TEXCOORD0;
};

VS_OUT mainVS(float3 pos : POSITION,
        float2 UV : TEXCOORD0)
{
    VS_OUT Out = (VS_OUT)(0);
    
    Out.pos = mul(float4(pos.xyz, 1.0), WorldViewProj);
    
    Out.col = float4(pos.x+0.5, pos.z+0.5, 0.0, 1.0);
    
    Out.UV = UV;
    
    return Out;
}

float4 mainPS(VS_OUT In) : COLOR
{
    float scale = 5.0;
    
    float4 ColorErg = In.col;
    float2 scaledUV = In.UV * scale;
    int2 cell = floor(scaledUV);
    float2 offset = scaledUV - cell;
    float2 randomPos;
    float4 ColorImag;
    
    for(int i = -1; i <= 0; i++)
    {
        for(int j = -1; j <= 0; j++)
        {
            float2 cell_t = cell + float2(i, j);
            float2 offset_t = offset - float2(i, j);
            randomPos = tex2D(RandomSampler, cell_t * float2(0.056, 0.213));

            ColorImag = tex2D(ImageSampler, offset_t - randomPos);

            if(ColorImag.w > 0.0)
            {
                ColorErg = ColorImag;
            }
        }   
    }
            
    return ColorErg;
}


TECHNIQUE T1
{
    PASS P1
    {
        VertexShader = compile vs_2_0 mainVS();
        PixelShader = compile ps_2_0 mainPS();
    }
}