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Sometimes when working with nodes it is useful to see what my setup looks like without a certain node. I know I can delete a node without breaking the chain with Ctrl+X and then undo with Ctrl+Z, but that is kind of cumbersome.

Is there a way to easily bypass a node like this, connecting the inputs to outputs like Ctrl+X does, only without deleting it?

PGmath
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This is called Muting a node. You can mute or unmute a node by selecting it and pressing M. Muting a node will connect the inputs directly to the outputs according to datatype in the same way as Delete With Reconnect (Ctrl+X).

enter image description here

When muted the header of a node will turn red and it will display red wires showing which inputs are connected to which outputs.

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PGmath
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    This may not work only in one case - Math node. If it's connected and even muted, it won't add any operations, but still will continue converting color data. – Mr Zak Nov 30 '15 at 20:56
  • @MrZak I don't experience that. To test it I plugged a colored texture into a math node and the math node into a color socket. When unmuted the output is B/W (obviously), but when I mute the math node the output is colored. – PGmath Dec 14 '15 at 03:21
  • Seems like it was fixed in latest versions. In 2.75 you would face that which I remember because someday I've lost several hours to understand why the texture isn't colored. – Mr Zak Dec 14 '15 at 11:47