" float fg = rv>=0 ? vv : 1.;\n"
" float bg = rv>=0 ? 1. : vv;\n"
" int len = points.length();\n"
" float fg = rv>=0 ? vv : 1.;\n"
" float bg = rv>=0 ? 1. : vv;\n"
" int len = points.length();\n"
" for( int i=0; i<len; ++i ) {\n"
" float dx = float(points[i].x) - gl_FragCoord.x;\n"
" float dy = float(points[i].y) - gl_FragCoord.y;\n"
" float dd = dx*dx + dy*dy;\n"
" if( dd >= rr ) continue;\n"
" for( int i=0; i<len; ++i ) {\n"
" float dx = float(points[i].x) - gl_FragCoord.x;\n"
" float dy = float(points[i].y) - gl_FragCoord.y;\n"
" float dd = dx*dx + dy*dy;\n"
" if( dd >= rr ) continue;\n"