[UE4]径向模糊

custom代码

const float2 ScreenMult = View.ViewSizeAndInvSize.xy * View.BufferSizeAndInvSize.zw;

const int TexIndex = 14;

const float Samples[11] = {-0.08,-0.05,-0.03,-0.02,-0.01,0,0.01,0.02,0.03,0.05,0.08};

float2 dir = float2(0.5,0.5) - ViewportUV;

float4 sum = float4(0.0, 0.0, 0.0, 0.0);

for(int i = 0; i<11; i++)

{

float2 pos = ViewportUV + dir * Samples[i] * BlurDist;

pos = clamp(pos, float2(0.0,0.0), float2(1.0, 1.0));

sum += SceneTextureLookup(pos * ScreenMult, TexIndex, false);

}

return sum / 11.0;

使用的话找到相机细节里配置一下就行