How to ignore the transparent part of Sprite by Ray pickup？

[looeee]

Raycaster and transparent area

Hi everyone, I’m currently working on a space RTS Game, the whole game will be around a galactic map but I have some trouble with my System Map Marker. The player can click on the system marker to entry in the system, for the moment the markers are made of Sprite, with generated texture the shape + the system Name, since few hours I doesn’t know that the center of a sprite can be set a another position, so the texture is for the moment a 512*512px with the “point” at center, and the text next …