I am spawning particles from the depth of the camera and want these particles to randomly stick on a surface of a signed distance field. I have made a bear head SDF that looks like this: It can properly work if I spawn particles from a sphere around the SDF, but as soon as the spawning isn't consistant on all side, particles seem to only stick to a specific area of the SDF. This is spawned from the depth texture of the main camera, see that particles gather on the left side. As opposed to spawned from a sphere where they stick rather uniformly on the SDF surface. My question is: Is there a way for the particles to always spread uniformly on the SDF surface? The end goal is to create a spawning effect where particles emit from the depth of the camera to form the shape of the enemy.