ConeEmitter

new Cesium.ConeEmitter(angle)

A ParticleEmitter that emits particles within a cone. Particles will be positioned at the tip of the cone and have initial velocities going towards the base.
参数名称 类型 默认值 描述信息
angle number Cesium.Math.toRadians(30.0) 可选 The angle of the cone in radians.