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(test che avevo già fatto ma probabilmente sbagliando qualcosa, uso blender da 2 settimane eheh) In pratica basta mettere su livelli diiversi gli oggetti da influenzare e i force field che influenzano. Per spostare i vari elementi da un livello all’altro basta selezionarlo e preme M per poi scegliere il livello desiderato. Nel caso in cui sia necessario avere un elemento su più livelli basta premere SHIFT per avere la possibilità di scegliere più livelli tra quelli disponibili.
“Fields only have an effect on objects and particles that reside on the same layer. Therefore, one solution is to have particle system ‘alpha’ on one layer, ‘beta’ on a second layer, and the force on the same layer as ‘alpha’.
To achieve this you can use <kbd>M</kbd> to move objects to different layers – simply press <kbd>M</kbd> while an object is selected and the ‘Move to Layer’ popup should appear. Just select the layer(s) that the object should reside on (an object can be on more than one layer – hold <kbd>Shift</kbd> to allow you to select multiple). To ‘View’ multiple layers, simply hold <kbd>Shift</kbd> and click the layers in the button bar at the bottom of the 3d Editor window.
With one of the objects (Beta) on a different layer and both layers selected for view, you should see no difference in the scene. However, the moved object’s particles will no longer be affected by the force”
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