Emmanuel BENOîT
68d01ca42e
Shaders are no longer found under /shaders in the project; they can be anywhere. In addition, paths for both (program) instructions in the script and include directives in shader source code are relative to the file which contains them.
20 lines
675 B
GLSL
20 lines
675 B
GLSL
#version 450 core
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//! type fragment
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layout( location = 0 ) uniform sampler2D u_InputTexture;
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layout( location = 1 ) uniform vec2 u_OutputSize;
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layout( location = 2 ) uniform int u_SourceLOD;
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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 vec2 c = gl_FragCoord.xy;
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color = ( .25 * (
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textureLod( u_InputTexture , ( c + vec2( .5 , .5 ) ) / u_OutputSize , u_SourceLOD )
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+ textureLod( u_InputTexture , ( c + vec2(-.5 , .5 ) ) / u_OutputSize , u_SourceLOD )
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+ textureLod( u_InputTexture , ( c + vec2( .5 ,-.5 ) ) / u_OutputSize , u_SourceLOD )
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+ textureLod( u_InputTexture , ( c + vec2(-.5 ,-.5 ) ) / u_OutputSize , u_SourceLOD )
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) ).rgb;
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}
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