Hi Gentlemen. Again any differences between Babylon.js and Blender. Let me explain and observe especially the spot lights... I have a scene with this render in Blender v 2.71 : And this render in Babylon.js v1.13 : All is good, I see my third lamp even if I don't see the hado of lights like in Blender (Why ??)... But if I add a spot lamp, like this render in Blender ; I have this render in Babylon : We can see that the fourth spot lamp "delete" or "mask" the third spot lamp... And their names are all different of course... Any idea? Thanks Zino