solved Star Sphere w/ particle sustem

[Pryme8]

https://www.babylonjs-playground.com/#WBQ8EM#12

I am trying to figure out how to generate a particle "star sphere"

I don't have much time today to dink around with it so I was hoping that someone could help me out.

[DylanD]

system* ... also the playground won't load for me... not sure why...

maybe something with moving the spawn point of the particles I would guess...?  Except instead of making it a circle make it a star... assuming thats what you meant... I can't really tell...

oh like looking out into the stars maybe?  then make the position follow a sphere code... 

ParticlesA.startPositionFunction = function(worldMatrix,positionToUpdate){

var rndAngle = 2*Math.random()*Math.PI;

var randX =this.minEmitBox.y;

var randY = radius*Math.cos(rndAngle)

var randZ = radius*Math.sin(rndAngle);

 

ParticlesA.direction1 = new BABYLON.Vector3(0,-randY*2,-randZ*2);

ParticlesA.direction2 = new BABYLON.Vector3(0,-randY*2,-randZ*2);

BABYLON.Vector3.TransformCoordinatesFromFloatsToRef(randX, randY, randZ, worldMatrix, positionToUpdate)

 

};

[Pryme8]

https://www.babylonjs-playground.com/#WBQ8EM#13

Ive got it but for some reason on my local version the line:
    sphereEmitter.radiusRange = 0;

Is not restricting the particles to the surface of the emitter.

[DylanD]

10 minutes ago, Pryme8 said:

https://www.babylonjs-playground.com/#WBQ8EM#13

Ive got it but for some reason on my local version the line:
    sphereEmitter.radiusRange = 0;

Is not restricting the particles to the surface of the emitter.

 

Maybe set it to -0.1 or something slightly outside? or play with the numbers to extreme (-1/1) to see if its actually sphereEmitter.radiusRange that is the problem...

[Pryme8]

fixed, I was pointing to the wrong CDN for the bjs file and was using an older one.