the add options are greyed out (in all tabs) I can't use them. Any help? BLENDER VERSION: 2.78
2 Answers
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- Enable Use Nodes as Scott said if you want to add material nodes.
- Switch to Compositor nodes which would have a separate Use Nodes button by clicking the second item in the enum.
- You probably want to switch to Cycles at the top to have the "normal" nodes :-)