35 lines
1.1 KiB
Text
35 lines
1.1 KiB
Text
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layout (location = 0) in vec2 inUV;
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layout (location = 0) out vec4 outColor;
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layout(push_constant, binding = 1) uniform PushConstants {
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int horizontal;
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};
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layout (binding = 0) uniform sampler2D image;
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const float weight[5] = float[] (0.227027, 0.1945946, 0.1216216, 0.054054, 0.016216);
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void main() {
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vec2 tex_offset = 1.0 / textureSize(image, 0); // gets size of single texel
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vec3 result = texture(image, inUV).rgb * weight[0]; // current fragment's contribution
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if(horizontal == 1)
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{
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for(int i = 1; i < 5; ++i)
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{
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result += max(texture(image, inUV + vec2(tex_offset.x * i, 0.0)).rgb * weight[i], vec3(0.0));
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result += max(texture(image, inUV - vec2(tex_offset.x * i, 0.0)).rgb * weight[i], vec3(0.0));
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}
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}
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else
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{
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for(int i = 1; i < 5; ++i)
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{
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result += max(texture(image, inUV + vec2(0.0, tex_offset.y * i)).rgb * weight[i], vec3(0.0));
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result += max(texture(image, inUV - vec2(0.0, tex_offset.y * i)).rgb * weight[i], vec3(0.0));
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}
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}
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outColor = vec4(result, 1.0);
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}
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