help adding Points in 3D

[katia93]

Hi, I have a problem when I add points to the scene with mouse (abstractTool). The points are placed in the scene with different z coordinates . While I would like that if I don't move the scene, points are all on the same z . The moment I rotate the object they will then have the different z . I tried to do camera.setPerspective ( false) , which has the desired effect , but removing the prerspective when I move the object and add other points also appear to be on the same z , so I lose the 3D effect .How can I solve this problem?thank you :)