URL: http://glslsandbox.com/e#28302.0
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// Flower Matrix // By: Brandon Fogerty // xdpixel.com #ifdef GL_ES precision mediump float; #endif uniform float time; uniform vec2 mouse; uniform vec2 resolution; void main( void ) { vec2 uv = ( gl_FragCoord.xy / resolution.xy ) * 2.0 - 1.0; uv.x *= resolution.x/resolution.y; vec3 finalColor = vec3( 0.0, 0.0, 0.0 ); float a = atan( uv.y / uv.x ); float r = length( uv ); float timeT = sin(time) * 0.5 + 0.5; float move = mix( -0.8, 0.8, timeT ); float t = abs( sin(((a + r*move)* 3.0)) * 1.0 ); finalColor += vec3( 8.0 * t, 4.0 * t, 2.0 * t ); finalColor *= 1.0-r; float g = -mod( gl_FragCoord.y + time, cos( gl_FragCoord.x ) + 0.004 ) * 0.5; finalColor *= vec3( 0.0, g, 0.0 ); gl_FragColor = vec4( finalColor, 1.0 ); } |