开启pcss的时候，场景物体的出现白边。同时一些物体的阴影消失了 ## 对比1 <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/e73fd1e4-a613-48f5-8431-efab0688da44" /> <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/9f542bd6-98b2-4da3-9710-703a67efdd2f" /> ## 对比2 <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/3b8052b0-3939-4b64-bf36-9a6de3950b6b" /> <img width="1920" height="1080" alt="Image" src="https://github.com/user-attachments/assets/119f7b10-324a-4e77-90e7-50b3c317a992" />
