20 lines
499 B
GLSL
20 lines
499 B
GLSL
#version 450 core
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//! type fragment
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layout( location = 0 ) uniform sampler2D u_Input;
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layout( location = 1 ) uniform int u_LOD;
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layout( location = 2 ) uniform vec2 u_InputSize;
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layout( location = 3 ) uniform vec3 u_FilterParams;
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layout( location = 0 ) out vec3 color;
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void main( void )
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{
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const vec3 c = textureLod( u_Input ,
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gl_FragCoord.xy / u_InputSize.xy , u_LOD ).xyz;
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color = max( vec3( 0 ) ,
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( pow( c , vec3( u_FilterParams.x ) ) * u_FilterParams.y - c )
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* u_FilterParams.z );
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}
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