precision highp float; uniform vec2 resolution; uniform float time; const float PI = acos(-1.); float hash(in float v) { return fract(sin(v)*43237.5324); } float hash(in vec2 v) { return fract(sin(dot(v, vec2(12.9898, 78.233)))*43237.5324); } mat2 rotate(in float r) { float c=cos(r),s=sin(r); return mat2(c,-s,s,c); } vec2 rotate(in vec2 p, in float r) { return p * rotate(r); } vec3 rotate(in vec3 p, in vec3 r) { p.xy = rotate(p.xy, r.z); p.yz = rotate(p.yz, r.x); p.zx = rotate(p.zx, r.y); return p; } /* MaxBittker/glsl-voronoi-noise https://github.com/MaxBittker/glsl-voronoi-noise/blob/master/3d.glsl */ vec3 hash(vec3 p) { return fract( sin(vec3(dot(p, vec3(1.0, 57.0, 113.0)), dot(p, vec3(57.0, 113.0, 1.0)), dot(p, vec3(113.0, 1.0, 57.0)))) * 43758.5453); } vec3 voronoi3d(const in vec3 x) { vec3 p = floor(x); vec3 f = fract(x); float id = 0.0; vec2 res = vec2(100.0); for (int k = -1; k <= 1; k++) { for (int j = -1; j <= 1; j++) { for (int i = -1; i <= 1; i++) { vec3 b = vec3(float(i), float(j), float(k)); vec3 r = vec3(b) - f + hash(p + b); float d = dot(r, r); float cond = max(sign(res.x - d), 0.0); float nCond = 1.0 - cond; float cond2 = nCond * max(sign(res.y - d), 0.0); float nCond2 = 1.0 - cond2; id = (dot(p + b, vec3(1.0, 57.0, 113.0)) * cond) + (id * nCond); res = vec2(d, res.x) * cond + res * nCond; res.y = cond2 * d + nCond2 * res.y; } } } return vec3(sqrt(res), abs(id)); } vec3 transform(in vec3 p) { //p = abs(p); //p = rotate(p, vec3(time*0.04)); return p; } float sphere(in vec3 p, in float r) { return length(p) - r; } float object(in vec3 p) { p = transform(p); float s = sphere(p, 5.); return s; } #define OMARCH_ITR 64 #define OMARCH_THR 1e-4 vec2 oMarch(in vec3 ro, in vec3 rd, in vec2 tmm) { vec2 res = vec2(-1.); // first marching loop until hit float t = tmm.x; for(int i=0;i

VOLONOI