I have two models.
model1:
- close to me
model2:
- far away from me than model1.
- be obscured by model1.
How to see model2 always?
The question is a bit confusing. Maybe you are looking for LODNode, which handles hiding and unhiding objects based on distance.
http://www.panda3d.org/manual/index.php/Level_of_Detail
If I understand you correctly, you want to have a specific object be visible regardless of any geometry that might lie between it and the observer.
In that case, you might find that placing it in a later-rendering bin and calling “setDepthTest(False)” does what you want.