mirror of
https://github.com/CookieCollective/Live-Coding-Sources.git
synced 2025-03-17 15:38:16 +01:00
112 lines
2.9 KiB
GLSL
112 lines
2.9 KiB
GLSL
#version 410 core
|
|
|
|
uniform float fGlobalTime; // in seconds
|
|
uniform vec2 v2Resolution; // viewport resolution (in pixels)
|
|
|
|
uniform sampler1D texFFT; // towards 0.0 is bass / lower freq, towards 1.0 is higher / treble freq
|
|
uniform sampler1D texFFTSmoothed; // this one has longer falloff and less harsh transients
|
|
uniform sampler1D texFFTIntegrated; // this is continually increasing
|
|
uniform sampler2D texChecker;
|
|
uniform sampler2D texNoise;
|
|
uniform sampler2D texTex1;
|
|
uniform sampler2D texTex2;
|
|
uniform sampler2D texTex3;
|
|
uniform sampler2D texTex4;
|
|
|
|
layout(location = 0) out vec4 out_color; // out_color must be written in order to see anything
|
|
|
|
#define sdist(p,r) (length(p)-r)
|
|
#define time fGlobalTime
|
|
#define repeat(p,r) (mod(p,r)-r/2.)
|
|
|
|
mat2 rot (float a) {
|
|
float c = cos(a), s = sin(a);
|
|
return mat2(c,-s,s,c);
|
|
}
|
|
|
|
void amod (inout vec2 p, float c) {
|
|
float an = (3.14159*2.)/c;
|
|
float a = atan(p.y,p.x)+an/2.;
|
|
a = mod(a, an)-an/2.;
|
|
p = vec2(cos(a),sin(a))*length(p);
|
|
}
|
|
|
|
float smin ( float a, float b, float t) {
|
|
float h = clamp(.5+.5*(b-a)/t,0.,1.);
|
|
return mix(b,a,h)-t*h*(1.-h);
|
|
}
|
|
|
|
float map (vec3 pos) {
|
|
float scene = 10.;
|
|
vec3 p = pos;
|
|
const float count = 3.;
|
|
for (float i = count; i >= 0.; --i) {
|
|
float r = i / count;
|
|
r = r * r;
|
|
p.xz *= rot(p.y * .4 / r);
|
|
amod(p.xz, 5.);
|
|
p.x -= .5 * r - sin(time * 2. + p.y * 2. + r * 3.14529) * .1 * r;
|
|
vec3 pp = p;
|
|
scene = min(scene, sdist(p.xz, .01));
|
|
}
|
|
p = pos;
|
|
p.xz = vec2(atan(p.x,p.z),length(p.xz));
|
|
p.y += sin(atan(p.z,p.x)/3.14159/2.)*.2;
|
|
p.y = repeat(p.y+time, .6);
|
|
float wave = 1. - .1*sin(time * 2. + pos.y * 4.);
|
|
p.z -= wave;
|
|
scene = min(scene, sdist(p.zy, .01));
|
|
p = pos;
|
|
p.xz *= rot(p.y);
|
|
amod(p.xz, 8.);
|
|
p.x -= wave;
|
|
scene = smin(scene, sdist(p.xz, .01), .1);
|
|
p = pos;
|
|
p.xz *= rot(-p.y);
|
|
amod(p.xz, 8.);
|
|
p.x -= wave;
|
|
scene = smin(scene, sdist(p.xz, .01), .1);
|
|
float dd = length(pos);
|
|
p.y += atan(pos.z,pos.x) * .5;
|
|
scene = smin(scene, sdist(p.yz, .01 - dd * .03), .1);
|
|
p.x -= .5;
|
|
p.x = repeat(p.x, .8);
|
|
scene = smin(scene, sdist(p.xy, .02), .2);
|
|
return scene;
|
|
}
|
|
|
|
void main(void)
|
|
{
|
|
vec2 uv = vec2(gl_FragCoord.x / v2Resolution.x, gl_FragCoord.y / v2Resolution.y);
|
|
uv -= 0.5;
|
|
uv /= vec2(v2Resolution.y / v2Resolution.x, 1);
|
|
|
|
vec3 eye = vec3(0,1,-3);
|
|
eye.xz *= rot(time);
|
|
eye.z += sin(time);
|
|
vec3 target = vec3(0);
|
|
vec3 front = normalize(target - eye);
|
|
vec3 right = normalize(cross(vec3(0,1,0),front));
|
|
vec3 up = normalize(cross(front, right));
|
|
vec3 ray = normalize(front + uv.x * right + uv.y * up);
|
|
vec3 color = vec3(uv,0);
|
|
float shade = 0.;
|
|
vec3 pos = eye;
|
|
const float count = 70.;
|
|
for (float i = count; i >= 0.; --i) {
|
|
|
|
float dist = map(pos);
|
|
if (dist < .0001) {
|
|
shade = i / count;
|
|
break;
|
|
}
|
|
dist *= .5;
|
|
pos += ray * dist;
|
|
}
|
|
|
|
float t = shade * 40. + time;
|
|
color = vec3(.75)+vec3(.25)*cos(vec3(.1,.2,.3)*t);
|
|
color *= shade;
|
|
|
|
out_color = vec4(color, 1);
|
|
} |