precision highp float; uniform vec2 resolution; uniform float time; uniform vec2 mouse; uniform sampler2D backbuffer; const float PI = 3.1415926; float line1(vec2 uv) { float t = 0.001 / abs(uv.y) * 1.0; return t; } float line2(vec2 uv) { float t = 0.001 / abs(uv.x) * 1.0; return t; } float inline1(vec2 uv, float timeVal) { float t = 0.002 / abs(uv.y + sin(-timeVal) * 0.3) * 1.0; return t; } float inline2(vec2 uv, float timeVal) { float t = 0.002 / abs(uv.x - cos(-timeVal) * 0.3) * 1.0; return t; } float rotateline(vec2 uv, float timeVal) { timeVal = timeVal - PI/4.0; uv.xy*=mat2(cos(timeVal),sin(timeVal),-sin(timeVal),cos(timeVal)); float t = 0.003 / abs(uv.y - uv.x) * 1.0; return t; } float square(vec2 uv) { float t = 0.003 / abs( min(0.424-abs(uv.x),0.424-abs(uv.y))) * 1.0; return t; } float circle(vec2 uv) { float t = 0.002 / abs(0.3 - length(uv)) * 1.0; return t; } float point(vec2 uv) { float t = 0.005 / length(uv); t = pow(t, 5.0); return t; } float sinwave(vec2 uv, float timeVal) { float t = 0.008 / abs(uv.y + sin(-timeVal + uv.x * 10.0 - 4.24)*0.3) * 1.0; return t; } float coswave(vec2 uv, float timeVal) { float t = 0.008 / abs(uv.x - cos(-timeVal*1.0+uv.y * 10.0 - 4.24)*0.3) * 1.0; return t; } void main(void) { vec2 uv = (2.0 * gl_FragCoord.xy - resolution.xy)/resolution.y; vec3 result = vec3(0.0, 0.0, 0.0); float timeVal = time*PI; result = mix(result, vec3(1.0 ,0.0, 0.1), line1(uv)); result = mix(result, vec3(0.0 ,0.1, 1.0), line2(uv)); result = mix(result, vec3(1.0, 1.0, 1.0), circle(uv)); if (abs(uv.x) <= 0.424) { result = mix(result, vec3(0.05 ,0.3, 1.0), inline1(uv,timeVal)); } if (abs(uv.y) <= 0.424) { result = mix(result, vec3(1.0 ,0.14, 0.6), inline2(uv,timeVal)); } if (abs(uv.x) > 0.424 && uv.x >= 0.0) { result = mix(result, vec3(0.05 ,0.3, 1.0), sinwave(uv,timeVal)); } if (abs(uv.y) > 0.424 && uv.y >= 0.0) { result = mix(result, vec3(1.0 ,0.14, 0.6), coswave(uv,timeVal)); } if (length(uv) < 0.3) { if (uv.x > 0.0 && uv.y > 0.0 && -cos(-timeVal) < 0.0 && sin(-timeVal) < 0.0 ) { result = mix(result, vec3(0.5, 0.5, 0.5), rotateline(uv,timeVal)); } else if (uv.x < 0.0 && uv.y > 0.0 && -cos(-timeVal) > 0.0 && sin(-timeVal) < 0.0 ) { result = mix(result, vec3(0.5, 0.5, 0.5), rotateline(uv,timeVal)); } else if (uv.x < 0.0 && uv.y < 0.0 && -cos(-timeVal) > 0.0 && sin(-timeVal) > 0.0 ) { result = mix(result, vec3(0.5, 0.5, 0.5), rotateline(uv,timeVal)); } else if (uv.x > 0.0 && uv.y < 0.0 && -cos(-timeVal) < 0.0 && sin(-timeVal) > 0.0 ) { result = mix(result, vec3(0.5, 0.5, 0.5), rotateline(uv,timeVal)); } } result += vec3(0.2, 0.2, 0.2)*square(uv); vec2 point_uv = uv; point_uv.x += -cos(-timeVal) * 0.3; point_uv.y += sin(-timeVal) * 0.3; float point = point(point_uv); result += (vec3(1.0 ,1.0, 1.0))*point*60.0; gl_FragColor = vec4(result,1.0); }

Complex Spin Wave