playcanvas

Version:

PlayCanvas WebGL game engine

20 lines (18 loc) • 654 B

JavaScript

var particleUpdaterSpherePS = `
uniform float spawnBoundsSphere;
uniform float spawnBoundsSphereInnerRatio;
vec3 calcSpawnPosition(vec3 inBounds, float rndFactor) {
	float rnd4 = fract(rndFactor * 1000.0);
	vec3 norm = normalize(inBounds.xyz - vec3(0.5));
	float r = rnd4 * (1.0 - spawnBoundsSphereInnerRatio) + spawnBoundsSphereInnerRatio;
#ifndef LOCAL_SPACE
	return emitterPos + norm * r * spawnBoundsSphere;
#else
	return norm * r * spawnBoundsSphere;
#endif
}
void addInitialVelocity(inout vec3 localVelocity, vec3 inBounds) {
	localVelocity += normalize(inBounds - vec3(0.5)) * initialVelocity;
}
`;

export { particleUpdaterSpherePS as default };