Creative Coding Algorithms

Position Elements on Angles From Center

let radius = 10;
let numBranches = 3;
for(let i = 0; i<elements.count;i++){
    let modIndex = i%numBranches;
    let angle = (modIndex/numBranches) * Math.PI*2;
    let ranRadius = Math.random()*radius

    position[i].x = Math.cos(angle)*ranRadius;
    position[i].x = 0;
    position[i].z = Math.sin(angle)*ranRadius;
}

Position Elements on Angles From Center With Spin

let radius = 10;
let numBranches = 3;
let spin = 0.1;
for(let i=0; i<elements.count;i++){
    let ranRadius = Math.random()*radius;
    let spinAngle = ranRadius + spin;
    let pIndex = i%numBranches;
    let branchAngle = (pIndex/numBranches)*Math.PI*2;
    position[i].x = Math.cos(branchAngle+spinAngle)*ranRadius;
    position[i].y = 0
    position[i].z = Math.sin(branchAngle+spinAngle)*ranRadius;
}

Manipulate Random Values Distribution

Push smaller values closer to 0 and bigger values closer to 1

We can use .pow to not have a linear distribution but to move the random values closer to 0 when the random value is small and closer to one when the random value is bigger

Math.pow(Math.random(),randomnessPower) This just creates positive values. When we want to have also some values distributed to a negative axis we can multiply it with a random 1/-1 Math.pow(Math.random(),randomPower) * (Math.random() <0.5 ? 1:-1)