[Feature Request]: handle webp size limit properly

[SLAPaper]

Is there an existing issue for this?

• I have searched the existing issues and checked the recent builds/commits

What would your feature do ?

webp has a maximum size limit of 16383*16383 (reference), which might be break when running big XYZ plots, and causing an encoding error 5.

Recommended:

1. save a scaling down version of webp
2. fallback to another file format at original pixel

Proposed workflow

1. configure fallback strategy in settings
2. run a big XYZ plot so that the plot size go over 16383
3. there will be a scaling down webp and/or a fallback jpeg/png of original size

Additional information

No response

[missionfloyd]

Does this option work?

[SLAPaper]

@missionfloyd
this config save a copy of scale down version, but will still save original one beforehand, so cannot avoid the encoding error

[SLAPaper]

Here is my implementation, FYI:

bf31e5b

[catboxanon]

Resolved by #12667