Juan Pablo Arce
51 lines
1.4 KiB
HLSL
51 lines
1.4 KiB
HLSL
float xBlurDistance;
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Texture2D xTexture;
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sampler TextureSampler = sampler_state { Texture = <xTexture>; };
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Texture2D xWaterBumpMap;
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sampler WaterBumpSampler =
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sampler_state
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{
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Texture = <xWaterBumpMap>;
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MagFilter = LINEAR;
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MinFilter = LINEAR;
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MipFilter = LINEAR;
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AddressU = WRAP;
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AddressV = WRAP;
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};
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float xWaveWidth;
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float xWaveHeight;
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float2 xWavePos;
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float2 xBumpPos;
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float4 main(float4 position : SV_Position, float4 color : COLOR0, float2 texCoord : TEXCOORD0) : COLOR0
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{
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float4 bumpColor = xWaterBumpMap.Sample(WaterBumpSampler, texCoord+xWavePos+xBumpPos);
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bumpColor = (bumpColor + xWaterBumpMap.Sample(WaterBumpSampler, texCoord-xWavePos*2.0f+xBumpPos))*0.5f;
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float2 samplePos = texCoord;
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samplePos.x+=(bumpColor.r-0.5f)*xWaveWidth;
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samplePos.y+=(bumpColor.g-0.5f)*xWaveHeight;
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float4 sample;
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sample = xTexture.Sample( TextureSampler, float2(samplePos.x+xBlurDistance, samplePos.y+xBlurDistance));
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sample += xTexture.Sample( TextureSampler, float2(samplePos.x-xBlurDistance, samplePos.y-xBlurDistance));
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sample += xTexture.Sample( TextureSampler, float2(samplePos.x+xBlurDistance, samplePos.y-xBlurDistance));
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sample += xTexture.Sample( TextureSampler, float2(samplePos.x-xBlurDistance, samplePos.y+xBlurDistance));
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sample = sample * 0.25;
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return sample;
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}
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technique WaterShader
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{
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pass Pass1
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{
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PixelShader = compile ps_4_0_level_9_1 main();
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}
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}
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