urp billboard shader point light shadow has rect clip

Unity Engine
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8741439--1183848--upload_2023-1-19_16-45-48.png

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8741445--1183851--upload_2023-1-19_16-46-39.png
8741445--1183851--upload_2023-1-19_16-46-39.png904×193 22 KB

here is the code in shadow caster pass