// Helful Resources
// ----------------
// Ray Marching Blog Post by Michael Walczyk
// https://michaelwalczyk.com/blog-ray-marching.html
// Inigo Quilez SDF Functions
// https://iquilezles.org/articles/distfunctions/

precision mediump float;

uniform float u_time;
uniform vec2 u_resolution;

const float NUM_OF_STEPS = 128.0;
const float MIN_DIST_TO_SDF = 0.001;