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In 2.4 It was possible to move an objet to another layer with keyframe. " Changing Object Layer

Many times you want an object or actor to wait off stage until it is their time to come on and do their thing. In Blender, you commonly render only a few of the twenty available layers. So by animating an object’s layer “membership”, you can animate its visibility in the 3D views (avoiding it to clutter your workspace) and at render time. Furthermore, as you can set some lamps to illuminate only objects on their layer, changing an object’s layer can also be a way to change radically its lighting… Changing from layer 4 to 10 and 14 at frame 10.

To animate an object’s layer membership, go to the frame when you want the object to appear. Ensure the object is on a visible layer (M to see and move it between layers). Insert (I) an Ipo key, and choose Layer in the menu that pops-up. In your Ipo Curve Editor window, you will see that the Layer channel now has a value corresponding to the current layer. Back up one frame, move the object to an unselected (invisible) layer. Now, here’s a slight glitch: you cannot add a Layer key because the object is on an unselected layer. So, temporarily enable that layer by ⇧ Shift-selecting it from the layers buttons, insert another Layer key, and then de-select the undesired layer. "

How to do that on 2.77 ????

Dji

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If your only concern is animating the visibility of the object, you can do this easily by keyframing the Restrict Viewport Visibility toggle for the object in the Outliner.

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  • $\begingroup$ Ok, but how to do this with bezier interpolation (to do a fade disapear) $\endgroup$ – Jean-Jacques Lonni May 27 '16 at 8:31
  • $\begingroup$ Easy, just switch to the Graph Editor with the object selected then convert the keyframes to Bezier interpolation in there. $\endgroup$ – Todd McIntosh May 27 '16 at 13:04
  • $\begingroup$ Mmh I'm sorry, but Bezier isn't available for visibility keyframes into 2.77a. $\endgroup$ – Jean-Jacques Lonni Jun 27 '16 at 10:43
  • $\begingroup$ No, you're right, probably due to the fact that you're keyframing a value that only has an On or Off state. If you need smoother transitions, you might want to add a Transparent shader to the material and animate a Mix shader in your material. $\endgroup$ – Todd McIntosh Jun 27 '16 at 13:47
  • $\begingroup$ Yes, with the material its ok. Its less simple Thanks Todd $\endgroup$ – Jean-Jacques Lonni Jun 27 '16 at 15:48

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