sdfCone

fn sdfCone(position: vec3<f32>, radius: f32, height: f32) -> f32 {
  let q = vec2<f32>(length(position.xz), position.y);
  let h = height;
  let r = radius;
  
  // Calculate distance
  let d1 = -q.y - h;
  let d2 = max(q.x * h - q.y * r, q.y * h + q.x * r);
  
  return length(max(vec2<f32>(d1, d2), vec2<f32>(0.0))) + min(max(d1, d2), 0.0);
}