precision mediump float; uniform float time; uniform vec2 resolution; uniform sampler2D backbuffer; uniform vec2 mouse; float random (vec2 st) { return fract(sin(dot(st.xy, vec2(12.9898,78.233)))* 43758.5453123); } mat2 genRot(float val){ return mat2(cos(val),-sin(val),sin(val),cos(val)); } vec3 PPParticle(vec2 uv,float t){ //uv =(uv - 0.5) * genRot(t) + 0.5; uv -=0.5; uv -= vec2(cos(t),sin(t)) * 0.02; t *= 0.5; t += 5.0; uv = vec2(length(uv),atan(uv.y/uv.x)); uv.x -= t * 0.75; float tDec = fract(t); float tRe = floor(t); vec2 cell = floor(uv * 8.0); vec2 st = fract(uv * 8.0); vec2 ca = vec2(random(vec2(tRe,1./tRe) + cell),random(vec2(1./tRe,tRe) + cell)) * 0.4 + 0.3; //ca = vec2(ca.x * cos(ca.y),ca.x * sin(ca.y)); vec2 cb = vec2(random(vec2(tRe + 1.0,1./(tRe + 1.0)) + cell),random(vec2(1./(tRe + 1.0),(tRe + 1.0)) + cell)) * 0.4 + 0.3; //cb = vec2(cb.x * cos(cb.y),cb.x * sin(cb.y)); vec2 currentPos = mix(ca, cb, tDec); //st = vec2(st.x * cos(st.y), st.x * sin(st.y)); vec3 res1 = abs(max(abs(st.x - currentPos.x),abs(st.y - currentPos.y)) - fract(t * 2.0 + random(cell)) * 0.3) < 0.015 ? vec3(1.0) : vec3(0.0); vec3 res2 = max(abs(st.x - currentPos.x),abs(st.y - currentPos.y)) < (fract(t * 2.0 + random(cell)) * 0.4) ? vec3(1.0) : vec3(0.0); return random(cell) < 0.5 ? res1 : res1; } vec3 BGRing(vec2 uv, float t){ float r = length(uv - 0.5); float fl = floor(r * 18.0); return vec3(fract(fl * 0.1 - t * 4.0) < 0.1 ? 1.0 : 0.0); } vec3 grid(vec2 uv,float t){ vec3 col = vec3(0.); vec2 st = fract(uv * 7.0); float cellY = floor(uv.y * 7.0); col = abs(floor(uv.x * 7.0) - 0.0) < 0.01 && abs(length(max(abs(st.x - 0.5),abs(st.y - 0.5))) - fract(t * 1.5 + cellY * 0.1)) < 0.05? vec3(42./255.,157./255.,143./255.) : col; col = abs(floor(uv.x * 7.0) - 6.0) < 0.01&& abs(length(max(abs(st.x - 0.5),abs(st.y - 0.5))) - fract(t * 1.5 + cellY * 0.1)) < 0.05 ? vec3(244./255.,162./255.,97./255.) : col; col = 0.01 < abs(floor(uv.x * 7.0)) && abs(floor(uv.x * 7.0)) < 6.0 && abs(length(max(abs(st.x - 0.5),abs(st.y - 0.5))) - fract(t * 0.375 + random(floor(uv * 7.0))) * 4.0) < 0.05 ? vec3(1.0) : col; col = (fract(uv.x * 7.0) < 0.0125 || fract(uv.x * 7.0) > 0.9875 || fract(uv.y * 7.0) < 0.0125 || fract(uv.y * 7.0) > 0.9875) ? vec3(1.0) : col; col = ((max(fract(uv.x * 7.0),fract(uv.y * 7.0))) < 0.1) ? vec3(1.0) : col; col = (abs(max(fract(uv.x * 7.0),fract(uv.y * 7.0)) - 0.145) < 0.0075) ? vec3(1.0) : col; col = -0.01 < (floor(uv.x * 7.0)) && (floor(uv.x * 7.0)) < 6.1 ? col : vec3(0.0); return col; } vec2 tebure(float t){ float x = 0.0; float y = 0.0; float A = 1.0; float T = 1.0; for(int i = 0; i < 5; i++) { x += cos(t / T * 6.2830) * A; y += sin(t / T * 6.2830) * A; A *= 0.5; T *= 2.0; } return vec2(x,y); } float sdf_line(vec2 uv, vec2 s, vec2 g){ float t = -dot((g-s),(s-uv))/dot((g-s),(g-s)); t = clamp(t, 0.0, 1.0); vec2 b = s + t * (g - s); return length(b - uv); } float sdf_circle(vec2 uv,vec2 center, float rad){ return length(uv - center) - rad; } float sdf_cross(vec2 uv,vec2 center, float width,float height,float t){ vec2 pos = vec2(uv.x - center.x - uv.y + center.y,uv.x - center.x + uv.y - center.y); pos = vec2(pos.x * cos(t * 6.283) - pos.y * sin(t * 6.283),pos.x * sin(t * 6.283) + pos.y * cos(t * 6.283)); float a = abs(pos.x) - width; float b = abs(pos.y) - height; float c = abs(pos.x) - height; float d = abs(pos.y) - width; return min(max(a,b),max(c,d)); } vec2 gridPos(vec2 pos){ return vec2(((pos.x) + 0.5)/7.,((pos.y) + 0.5)/7.); } vec2 day(float t,float init){ float x = random(vec2(t, init)); float y = t; return vec2(x * 7.0,y); } vec3 line(vec2 uv,float init,float t){ uv += init * 0.2; vec3 col = vec3(1.0); float d = 10000.0; vec2 yyyd = day(floor(t) - 2.0,init); vec2 yyd = day(floor(t) - 1.0,init); vec2 yd = day(floor(t) + 0.0,init); vec2 td = day(floor(t) + 1.0,init); vec2 nd = day(floor(t) + 2.0,init); float delta = smoothstep(-0.2,1.2,fract(t)); delta = clamp(delta,0.0,1.0); vec2 yyydPos = gridPos(floor(yyyd)); vec2 yydPos = gridPos(floor(yyd)); vec2 ydPos = gridPos(floor(yd)); vec2 tdPos = gridPos(floor(td)); vec2 ndPos = gridPos(floor(nd)); vec2 rotPos = vec2(tdPos.x,ndPos.y); float p1l = abs(rotPos.y - tdPos.y); float p2l = abs(rotPos.x - ndPos.x); float thr = (p1l/(p1l + p2l)); if(delta < thr){ d = sdf_line(uv,tdPos,(1. - delta /thr) * tdPos + delta /thr * rotPos); }else{ d = sdf_line(uv,tdPos,rotPos); float d2 = sdf_line(uv,rotPos,(1. - (delta - thr) / (1. - thr)) * rotPos + (delta - thr) /(1. - thr) * ndPos); d = min(d,d2); } vec2 bRotPos = vec2(ydPos.x,tdPos.y); vec2 bbRotPos = vec2(yydPos.x,ydPos.y); vec2 bbbRotPos = vec2(yyydPos.x,yydPos.y); d = min(d,sdf_line(uv,ydPos,bRotPos)); d = min(d,sdf_line(uv,bRotPos,tdPos)); d = min(d,sdf_line(uv,yydPos,bbRotPos)); d = min(d,sdf_line(uv,bbRotPos,ydPos)); d = min(d,sdf_line(uv,yyydPos,bbbRotPos)); d = min(d,sdf_line(uv,bbbRotPos,yydPos)); d = min(d,sdf_cross(uv,yyydPos,0.035,0.0075,1.)); d = min(d,sdf_cross(uv,yydPos,0.035,0.0075,1.)); d = min(d,sdf_cross(uv,ydPos,0.035,0.0075,1.)); d = min(d,mix(sdf_circle(uv,tdPos,0.0125), sdf_cross(uv,tdPos,0.035,0.0075, min(1.0,delta * 4.0)), min(1.0,delta * 4.0))); d = min(d,sdf_circle(uv,ndPos,0.0125 * min(1.0,delta * 2.0))); col = (abs(d-0.006) - 0.00075) < 0.|| d < 0.002 ? vec3(1.0) : vec3(0.0); return col; //return vec3(clamp(1.0 - max(0.,d-0.004) * max(0.,d-0.004) * 24000.0,0.0,1.0)); } vec4 render(vec3 c, vec3 r,vec3 centerPos,float ti){ float t = -(c.y - centerPos.y)/r.y; if(t < 0.0){ return vec4(0.0); } vec2 uv = vec2(c.x + r.x * t,c.z + r.z * t); uv -= centerPos.xz; uv.x = fract(uv.x / 1.2) * 1.2; return ((0.0 < uv.x && uv.x < 1.0)) ? vec4(grid(uv,ti) /(1. + (uv.y - c.z) * (uv.y - c.z) * 0.02),1.0): vec4(0.0); } vec4 render2(vec3 c, vec3 r,vec3 centerPos,float ti){ float t = -(c.y - centerPos.y)/r.y; if(t < 0.0){ return vec4(0.0); } vec2 uv = vec2(c.x + r.x * t,c.z + r.z * t); uv -= centerPos.xz; vec3 lineCol = line(uv,0.1,ti + 0.3) * vec3(57./255.,0./255.,153./255.); vec3 lineCol2 = line(uv,-0.1,ti + 0.2) * vec3(158./255.,0./255.,89./255.); vec3 lineCol3 = line(uv,-0.2,ti + 0.1) * vec3(255./255.,0./255.,84./255.); vec3 lineCol4 = line(uv,0.2,ti) * vec3(255./255.,84./255.,0./255.); vec3 col = lineCol + lineCol2 + lineCol3 + lineCol4; return ((0.0 < uv.x && uv.x < 1.0) && length(col) > 0.01) ? vec4(col,1.0): vec4(0.0); } void main( void ) { float t = time / 1.5; vec2 uv = ( gl_FragCoord.xy / resolution ) - 0.5; vec3 cam = vec3(0.5,0.35,0.75 + t / 7.0); cam.xy += tebure(time * 0.5) * 0.01; cam.xy += (mouse - 0.5) * 0.3; vec3 ray = vec3(uv,0.25); ray.xy *= genRot(0.075 * sin(t)); ray.xz *= genRot(0.075 * cos(t)); ray.yz *= genRot(0.1); vec4 col = render2(cam,ray,vec3(-0.0,0.075,0.75),1.0 + (t)); col = col.w != 0.0 ?col : render(cam,ray,vec3(0.,0.,0.75),1.0 + t); col = col.w != 0.0 ?col : render2(cam,ray,vec3(0.,1.0 - 0.075,0.75),1.0 + t); col = col.w != 0.0 ?col : render(cam,ray,vec3(0.,1.0,0.75),1.0 + t); col.xyz += col.w != 0.0 ? vec3(0.0) : PPParticle(gl_FragCoord.xy / resolution,t); //col.xyz += col.w != 0.0 ? vec3(0.0) : BGRing(gl_FragCoord.xy / resolution,t * 0.5); vec3 bloom1; float bSum = 0.0; float bIntensity = 1.0; float bUnit = 0.00125; for(float i = 1.0; i < 25.0; i += 1.0) { /* code */ vec3 L = texture2D(backbuffer, gl_FragCoord.xy / resolution + vec2(bUnit * i,0.0)).xyz; vec3 R = texture2D(backbuffer, gl_FragCoord.xy / resolution - vec2(bUnit * i,0.0)).xyz; vec3 U = texture2D(backbuffer, gl_FragCoord.xy / resolution + vec2(0.0,bUnit * i)).xyz; vec3 D = texture2D(backbuffer, gl_FragCoord.xy / resolution - vec2(0.0,bUnit * i)).xyz; bSum += bIntensity; bloom1 += (L + U + R + D)/2.0 * bIntensity; bIntensity *= 0.9; } bloom1 /= bSum; col.xyz = col.xyz * 0.8 + bloom1 * 0.4; float vigRate = 1. - length(gl_FragCoord.xy / resolution - 0.5) * length(gl_FragCoord.xy / resolution - 0.5) * 0.8; col *= vigRate; float CAamount = 0.001; CAamount = 0.003 * random(vec2(t)); vec3 CAR =texture2D(backbuffer, gl_FragCoord.xy / resolution + vec2(CAamount,0.0)).xyz; vec3 CAB =texture2D(backbuffer, gl_FragCoord.xy / resolution - vec2(0.001,0.0)).xyz; col.xyz = vec3(CAR.x * 0.5 + col.x * 0.5,CAB.y * 0.5 + col.y * 0.5,col.z); gl_FragColor = vec4(col.xyz, 1.0); }