Planar shadows don't work correctly if 3D models are scaled with low values

[BenoitFreslon]

Cocos Creator version

3.8.0

System information

Windows 11

Issue description

Planar shadows don't work when the ortho camrera is far. The shadows are above the 3D model.

See the video: https://www.loom.com/share/e06274f58f24484fb80c7370f26e00b0

Relevant error log output

No response

Steps to reproduce

Active Shadows on the scene and set type Planar. Create a 3D primite and active the drop shadows. Move the ortho camera to a far position. It's visible in the editor too.

Minimal reproduction project

No response