the aliveParticleCount of VisualEffect is always 0 in OpenGL

Unity Engine
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7573864--938113--企业微信截图_16342767401344.png
7573864--938113--企业微信截图_16342767401344.png490×565 18.4 KB

VisualEffect.aliveparticlecount has its value in DX
7573864--938119--企业微信截图_16342765813625.png
7573864--938119--企业微信截图_16342765813625.png980×600 33.4 KB

but always 0 in OpenGL
7573864--938122--企业微信截图_16342775001002.png
7573864--938122--企业微信截图_16342775001002.png445×532 18.2 KB

2

How can I get the aliveparticlecount in OpenGL