50 lines
907 B
GLSL
50 lines
907 B
GLSL
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#version 450 core
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layout(location=0) out vec4 FragColor;
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layout(binding=1) uniform ColorMaterial
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{
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vec4 color;
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} color_material;
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layout(binding=10) uniform WorldMatrix // hgl/math/Math.h
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{
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mat4 ortho;
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mat4 projection;
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mat4 inverse_projection;
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mat4 modelview;
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mat4 inverse_modelview;
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mat4 mvp;
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mat4 inverse_mvp;
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vec4 view_pos;
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vec2 canvas_resolution;
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vec2 viewport_resolution;
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}fs_world;
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void main()
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{
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vec2 p = 256.0 * gl_FragCoord.xy/fs_world.canvas_resolution.x;
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float x = 0.0;
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for( int i=0; i<7; i++ )
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{
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vec2 a = floor(p);
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vec2 b = fract(p);
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x += mod( a.x + a.y, 2.0 ) *
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// the following line implements the smooth xor
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mix( 1.0, 1.5*pow(4.0*(1.0-b.x)*b.x*(1.0-b.y)*b.y,0.25), 0.0 );
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p /= 2.0;
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x /= 2.0;
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}
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FragColor=vec4(color_material.color.rgb*x,1.0);
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}
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