The depth of babylonjs csm

The depth of the viewing frustum seems to be the same in babylonjs csm,
I draw all the frustums,and result is


As can be seen from the figure, the frustum is not layered during the rendering process.

and If this stratification can be achieved, it should be correct

The frustums are not layered that way in CSM, the camera frustum is subdivided like this:

image

See this link for more detail:

https://doc.babylonjs.com/features/featuresDeepDive/lights/shadows_csm#subdividing-the-frustum

It was my negligence, I set the stabilizeizeCascades attribute