Generative artist, sharing my journey in visual experiments.
p = getRandomPalette()
palette = shuffle(p)
sh = () => raymarch({
// antiAliasing: 3,
eye: `vec3(0, 3, 10e-5) * rotate3D(PI / 4., vec3(0, 1, 0))`,
background: `vec3(${hexToRgb(palette[0]).join(',')})/255.`,
init: `void init(){
for(int i = 0; i < ${palette.length}; i++) {
glows[i] = 0.;
}
}`,
sceneSDF: `
#define PI ${Math.PI}
#define TAU ${Math.PI * 2}
#define NUM_COLORS ${palette.length}
uniform sampler2D u_texture;
${iqSDF.opUnion()}
${iqSDF.opSubtraction()}
${iqSDF.sdCappedCylinder()}
${iqSDF.sdBox()}
${glslSnippets.rotate3D()}
${motionToolkit.linearstep()}
${motionToolkit.easeInOutCubic()}
float glows[NUM_COLORS];
vec2 sceneSDF(vec3 p) {
//p *= rotate3D(u_time * TAU, vec3(1, 1, 0));
vec2 d = vec2(10e5, 0.);
const float n = 9.;
for(float i = 0.; i < n; i ++) {
vec3 pp = p.xzy;
pp *= rotate3D(PI / 2. * i, vec3(0, 0, 1));
pp *= rotate3D(easeInOutCubic(linearstep(mod(i, 2.), mod(i, 2.) + 1., u_time * 2.)) * PI, vec3(0, 1, 0));
vec2 dd = vec2(opSubtraction(sdBox(pp, vec2(.25 + .25 * i - .15, .25).xxy), sdBox(pp, vec2(.25 + .25 * i, .1).xxy)), mod(i, float(NUM_COLORS) - 1.) + 1.);
if(mod(i, 3.) == 0.) {
int m = int(mod(i, float(NUM_COLORS) - 1.) + 1.);
if(m == 0) glows[0] += 0.001 / (0.001 + dd.x * dd.x * 5.) / (float(AA * AA) * 10.);
else if(m == 1) glows[1] += 0.001 / (0.001 + dd.x * dd.x * 5.) / (float(AA * AA) * 10.);
else if(m == 2) glows[2] += 0.001 / (0.001 + dd.x * dd.x * 5.) / (float(AA * AA) * 10.);
else if(m == 3) glows[3] += 0.001 / (0.001 + dd.x * dd.x * 5.) / (float(AA * AA) * 10.);
else if(m == 4) glows[4] += 0.001 / (0.001 + dd.x * dd.x * 5.) / (float(AA * AA) * 10.);
}
d = opUnion(d, dd);
}
return d;
}`,
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 = texture2D(u_texture, vec2(m / float(NUM_COLORS), .5)).rgb;
// lighting
float occ = calcAO(pos, nor); // ambient occlusion
vec3 lig = normalize(vec3(-0.4, 0.7, -0.6)); // sunlight
float amb = clamp(0.5 + 0.5 * nor.y, 0.0, 1.0); // ambient light
float dif = clamp(dot(nor, lig), 0.0, 1.0); // diffuse reflection from sunlight
// backlight
float bac = clamp(dot(nor, normalize(vec3(-lig.x, 0.0, -lig.z))), 0.0, 1.0) * clamp(1.0 - pos.y, 0.0, 1.0);
float dom = smoothstep(-0.1, 0.1, ref.y); // dome light
float fre = pow(clamp(1.0 + dot(nor, rd), 0.0, 1.0), 2.0); // fresnel
float spe = pow(clamp(dot(ref, lig), 0.0, 1.0), 16.0); // specular reflection
dif *= softshadow(pos, lig, 0.02, 2.5);
dom *= softshadow(pos, ref, 0.02, 2.5);
vec3 lin = vec3(0.0);
lin += 1.30 * dif * vec3(1.00, 0.80, 0.55);
lin += 2.00 * spe * vec3(1.00, 0.90, 0.70) * dif;
lin += 0.40 * amb * vec3(0.40, 0.60, 1.00) * occ;
lin += 0.50 * dom * vec3(0.40, 0.60, 1.00) * occ;
lin += 0.50 * bac * vec3(0.25, 0.25, 0.25) * occ;
lin += 0.25 * fre * vec3(1.00, 1.00, 1.00) * occ;
col = col * lin;
// mix in fog?
// col = mix(col, vec3(0.8, 0.9, 1.0), 1.0 - exp(-0.0002 * d * d * d));
col = mix(col, texture2D(u_texture, vec2(0., .5)).rgb, 1.0 - exp(-0.01 * d * d * d));
// gamma
col = pow(col, vec3(0.4545));
return col;
}`,
effect: `
vec3 effect(vec3 c) {
// for(int i = 0; i < NUM_COLORS; i++) {
// c += glows[i] * texture2D(u_texture, vec2(mod(float(i), float(NUM_COLORS - 1)) + 1.) / float(NUM_COLORS), .5)).rgb;
// }
c += glows[0] * texture2D(u_texture, vec2(1. / float(NUM_COLORS), .5)).rgb;
c += glows[1] * texture2D(u_texture, vec2(2. / float(NUM_COLORS), .5)).rgb;
c += glows[2] * texture2D(u_texture, vec2(3. / float(NUM_COLORS), .5)).rgb;
c += glows[3] * texture2D(u_texture, vec2(4. / float(NUM_COLORS), .5)).rgb;
c += glows[4] * texture2D(u_texture, vec2(5. / float(NUM_COLORS), .5)).rgb;
return c;
}
`,
logShader: true
})
iqSDF
motionToolkit
glslSnippets
import {shuffle} from '@makio135/utilities'
import {getRandomPalette, displayPalettes, hexToRgb} from '@makio135/give-me-colors'
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.