Generative artist, sharing my journey in visual experiments.
bnbShader(await raymarch({
antiAliasing: 3,
background: `vec3(22./255.)`,
eye: `vec3(-2., 0.5 + cos(u_time * TAU) * 1.5, 2.0)`,
// eye: `vec3(0, 0, 10)`,
sceneSDF: `
#define PI ${Math.PI}
#define TAU ${Math.PI * 2}
${sdBox()}
${sdTorus()}
${opRepLim()}
${opUnion()}
${opSubtraction()}
${opIntersection()}
${rotateX()}
${rotate3D()}
${await easeCubicInOut()}
float glow = 0.;
vec2 sceneSDF(vec3 p) {
vec3 pp = p * rotate3D(u_time * TAU * 2., vec3(0, 0, 1));
pp *= rotate3D(-u_time * TAU, vec3(1, 0, 0));
float t1 = sdTorus(pp, vec2(.9, .4));
float t2 = sdTorus(pp, vec2(.9, .399999 - (sin(u_time * TAU) *.5 + .5) * .1));
float t3 = opSubtraction(t2, t1);
pp = opRepLim(p, vec3(0., 0.15 + sin(u_time * TAU) * .05, 0.), vec3(0, 15, 0));
float b = sdBox(pp, vec3(1.5, 0.01, 1.5));
float d1 = opIntersection(t2, sdBox(pp, vec3(1.5, 0.01, 1.5)));
float d2 = opIntersection(t3, sdBox(pp, vec3(1.5, 0.00001, 1.5)));
glow += 0.005 / (0.02 + d2 * d2 * 100.) / (float(AA) * 4.);
float d = opUnion(d1, d2);
return vec2(d, 60.);
}`,
computeColor: `
vec3 computeColor(vec3 ro, vec3 rd, vec3 pos, float d, float m) {
vec3 nor = calcNormal(pos);
vec3 ref = reflect(rd, nor); // reflected ray
// material
vec3 col = vec3(0.);
// lighting
float occ = calcAO(pos, nor); // ambient occlusion
col *= occ;
return col;
}`,
effect: `
vec3 effect(vec3 col) {
col += glow * mix(vec3(0.3, 1.0, 0.8), vec3(1., .3, .8), sin(u_time * TAU) * .5 + .5);
return col;
}`,
logShader: true,
}), {
w: 540, h: 540,
numFrames: 120,
fps: 20,
record: true,
video: 'mp4',
shutterAngle: .8,
samplesPerFrame: 8
})
import {sdBox, sdTorus, opIntersection, opSubtraction, opUnion, opRepLim, rotateX} from '@makio135/iq-sdf'
import {easeCubicOut, easeCubicInOut, rotate3D} from '@makio135/glsl-snippets'
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