[Feature]: Can you support applyFilters for the entire canvas?

[tetap]

CheckList

• I agree to follow this project's Code of Conduct
• I have read and followed the Contributing Guide
• I have searched and referenced existing issues, feature requests and discussions
• I am filing a FEATURE request.

Description

Support adding global filters 对整个canvas操作

Current State

Method not found

Additional Context

I am making an animation of entrance and exit and will use glsl. However, fabric only allows objects to be added, and the external situation of the animation will be cut and invisible

[asturur]

Filters for the entire canvas / objects were planned, but i m not sure they will be useful for your use case.
They are a low priority feature and i don't see anyone working on it in the short term