URL: http://glslsandbox.com/e#24947.1
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// Glowing Line // By: Brandon Fogerty // bfogerty at gmail dot com // xdpixel.com #ifdef GL_ES precision mediump float; #endif uniform float time; uniform vec2 resolution; void main( void ) { vec2 uv = ( gl_FragCoord.xy / resolution.xy ) * 2.0 - 1.0; vec3 finalColor = vec3 ( 1.0, 0.3, 0.5 ); finalColor *= abs( 1.0 / (sin( uv.x + sin(uv.y+time)* 0.10 ) * 40.0) ); gl_FragColor = vec4( finalColor, 1.0 ); } |