void inSphereRandom(float *x,float *y,float *z, float radius){

	float r[1] = {0},t[1] = {0},p[1] = {0};
	onSphereRandom(x,y,z);

	convertToSphericalCoordination(*x,*y,*z,r,t,p);
	*r *= sqrt(floatRand());
	*r *= radius;
	convertToXYZ(*r,*t,*p,x,y,z);
}