Added Komplex Pack Sources
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31
tools/packsrc/deadly_halftones/shaders/Buffer B.frag
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31
tools/packsrc/deadly_halftones/shaders/Buffer B.frag
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//////////////////////////////////////
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// HALPHTONES POSTPROCESING
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//////////////////////////////////////
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float make_dot (vec2 uv, float r, float c)
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{
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return smoothstep( r - .1, r, min( length((uv - vec2(c/2.))*2.), r));
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}
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float get_tex(vec2 U)
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{
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vec3 tex_col = texture(iChannel0,U / R).xyz;
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return .45 * (tex_col.x + tex_col.y + tex_col.z);
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}
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void mainImage( out vec4 C, in vec2 U )
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{
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// float cel = rem(R); // float CEL = floor(R.y/70.);
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float pixel_color = get_tex(ceil(U / CEL) * CEL); // calculate cel color
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float dot_radius = pixel_color ; // dot radius
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U = mod(U , CEL); // cell grid
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vec4 dot_color = vec4(make_dot(U, ceil(dot_radius * CEL ), CEL )); // make dots
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C = 1. - dot_color;
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}
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