supahfunk

vec2 rotate(vec2 v, float a) {
	float s = sin(a);
	float c = cos(a);
	mat2 m = mat2(c, -s, s, c);
	return m * v;
}

supahfunk

// bezier curve with 2 control points
// A is the starting point, B, C are the control points, D is the destination
// t from 0 ~ 1
vec3 bezier(vec3 A, vec3 B, vec3 C, vec3 D, float t) {
  vec3 E = mix(A, B, t);
  vec3 F = mix(B, C, t);
  vec3 G = mix(C, D, t);

  vec3 H = mix(E, F, t);
  vec3 I = mix(F, G, t);

supahfunk

vec3 align(vec3 pos, vec3 dir) {
    vec3 initDir = vec3(1.0, 0.0, 0.0);
    vec3 axis = cross(dir, initDir);
    float angle = acos(dot(dir, initDir));
    return rotate(pos, axis, angle);
}

supahfunk

uniform float zNear = 0.1;
uniform float zFar = 500.0;

// depthSample from depthTexture.r, for instance
float linearDepth(float depthSample)
{
    depthSample = 2.0 * depthSample - 1.0;
    float zLinear = 2.0 * zNear * zFar / (zFar + zNear - depthSample * (zFar - zNear));
    return zLinear;
}

supahfunk

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console