inaccurate border clamping is observable at v1.0-pre25 wgpu: <img width="1069" height="1118" alt="Image" src="https://github.com/user-attachments/assets/ea72a602-2180-4e2a-bc80-bd02c5a86316" /> gl: <img width="1063" height="1065" alt="Image" src="https://github.com/user-attachments/assets/fc4ffbe9-d0a1-4ef5-ace1-77b94f77f8cb" />