57 lines
1.4 KiB
GLSL
57 lines
1.4 KiB
GLSL
[vertex]
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layout(location=0) in highp vec4 vertex_attrib;
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layout(location=4) in vec2 uv_in;
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out vec2 uv_interp;
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void main() {
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uv_interp = uv_in;
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gl_Position = vertex_attrib;
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}
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[fragment]
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in vec2 uv_interp;
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uniform sampler2D source_color; //texunit:0
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uniform float lod;
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uniform vec2 pixel_size;
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layout(location = 0) out vec4 frag_color;
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void main() {
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#ifdef GAUSSIAN_HORIZONTAL
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vec4 color =textureLod( source_color, uv_interp+vec2( 0.0, 0.0)*pixel_size,lod )*0.38774;
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color+=textureLod( source_color, uv_interp+vec2( 1.0, 0.0)*pixel_size,lod )*0.24477;
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color+=textureLod( source_color, uv_interp+vec2( 2.0, 0.0)*pixel_size,lod )*0.06136;
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color+=textureLod( source_color, uv_interp+vec2(-1.0, 0.0)*pixel_size,lod )*0.24477;
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color+=textureLod( source_color, uv_interp+vec2(-2.0, 0.0)*pixel_size,lod )*0.06136;
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frag_color = color;
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#endif
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#ifdef GAUSSIAN_VERTICAL
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vec4 color =textureLod( source_color, uv_interp+vec2( 0.0, 0.0)*pixel_size,lod )*0.38774;
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color+=textureLod( source_color, uv_interp+vec2( 0.0, 1.0)*pixel_size,lod )*0.24477;
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color+=textureLod( source_color, uv_interp+vec2( 0.0, 2.0)*pixel_size,lod )*0.06136;
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color+=textureLod( source_color, uv_interp+vec2( 0.0,-1.0)*pixel_size,lod )*0.24477;
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color+=textureLod( source_color, uv_interp+vec2( 0.0,-2.0)*pixel_size,lod )*0.06136;
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frag_color = color;
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#endif
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#ifdef SIMPLE_COPY
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vec4 color =textureLod( source_color, uv_interp,0.0);
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frag_color = color;
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#endif
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}
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