ParticleEmitter._inner_material.flags.depth_write = true;
ParticleEmitter._inner_material.flags.depth_test = true;
开启粒子材质的深度测试,修正遮挡剔除的错误
ParticleEmitter._inner_material.flags.depth_write = true;
ParticleEmitter._inner_material.flags.depth_test = true;
开启粒子材质的深度测试,修正遮挡剔除的错误