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— To reset a selected node: Press (Shift-home).
— To reset all grades and nodes: Press (Command-home).
— To reset all grades and keep nodes: Press (Shift-Command-home).
Previewing and Restoring Node Trees
There are two other methods of quickly dealing with unwanted changes you’ve made to node trees, without needing to use undo.
— Preview Memory: Lets you preview the effect of any saved grade on the current clip. To preview, choose Color > Preview Memory (Option-Shift-P), and then right-click any saved still in the
Gallery (or Memory) and choose Add Correction. In fact, you can use Add Correction to try out as many stills as you like. If you like any still’s effect, then you can leave it be. If you don’t like any of the stills you previewed, then choosing Color > Preview Memory again reverts the clip to the original grade.
— Original Memory: This command lets you quickly revert a clip’s grade to its original state when you first selected that clip. It is accessed by choosing Color > Original Memory (Option-Shift-O). This is useful for getting immediately back to a clip’s original grade if you’ve made a series of changes that you then regret. Selecting another clip in the Timeline and then reselecting the clip you made changes to resets what is considered to be the current grade.
Caching Specific Nodes to Improve Performance
You can flag specific nodes to be cached, along with all nodes appearing upstream in that node tree. By caching nodes using processor-intensive effects, you free up real time capability for the remaining downstream nodes in a grade. Choosing Playback > Render Cache > User only caches nodes that you’ve flagged for caching.
When you choose Playback > Render Cache > Smart mode, DaVinci Resolve automatically caches any nodes that use Motion Blur, Noise Reduction, or OFX plugins, without you needing to do anything.
— Right-click any node and choose Node Cache > On from the contextual menu.