使用HLSL写一段边缘模糊代码
时间: 2023-02-26 12:00:06 浏览: 71
以下是使用HLSL(High-Level Shading Language)写一段边缘模糊代码的示例:
```
sampler2D s0;
float4 main(float2 texCoord : TEXCOORD) : COLOR
{
float4 color = 0;
color += tex2D(s0, texCoord + float2(-0.00390625, -0.00390625)) * 0.00441941738241592;
color += tex2D(s0, texCoord + float2(-0.00390625, 0.0)) * 0.0089283486238532;
color += tex2D(s0, texCoord + float2(-0.00390625, 0.00390625)) * 0.00441941738241592;
color += tex2D(s0, texCoord + float2(0.0, -0.00390625)) * 0.0089283486238532;
color += tex2D(s0, texCoord) * 0.0178156812477064;
color += tex2D(s0, texCoord + float2(0.0, 0.00390625)) * 0.0089283486238532;
color += tex2D(s0, texCoord + float2(0.00390625, -0.00390625)) * 0.00441941738241592;
color += tex2D(s0, texCoord + float2(0.00390625, 0.0)) * 0.0089283486238532;
color += tex2D(s0, texCoord + float2(0.00390625, 0.00390625)) * 0.00441941738241592;
return color;
}
```
这段代码实现了一个简单的 9x9 边缘模糊效果。它通过使用插值样本和权重,对每个像素周围的 9 个像素进行模糊处理。