Cache State

The Cache State lets you see all the frame data that's currently stored in the layout cache.

Cache State window

Tool bar


	Clear data only in this window
	Take a screenshot (.png)
	Change the zoom on events
	Automatic focus to display the whole cache

The cache state displays the status of frame data for all frame values, and all nodes in the cache.

Each colored square represents a frame data:

its color define the status of this frame data:
- a source frame data (loaded from the disk or interpolated) is loaded and ready
- a modified frame data (a frame data with layout transformations) is loaded and ready
- a frame data was loaded but has been removed due to user action (a click on refresh cache, or a change in parameter value that invalidated some node...)
- a source frame data was destroyed because the max layout cache size was reached
- a modified frame data was destroyed because the max layout cache size was reached
its position represents the frame index and the node ID it caches. The first raw always represents frame data with no layout modification (either loaded from disk, or interpolated), and the first raw always represents the frame data that is used for the display or render.

All raws in between are used when some layout nodes modifications are stored in cache (for instance, layout nodes that uses another frame as reference will always force the reference frame to be cached, making sure it won't be recomputed each time)

So this graphic:

Cache State window

represents a layout cache where

source frames data are loaded for frames from -1 to 157, and sources frames data 158 to 169 had been loaded ad some point, but were since cleared by the user (blue color), as can be seen on the first raw
display frames data are loaded from frame 1 to 41, and the following ones had been loaded at some point, but cleared from a user action since (last raw)
some frame data were cached for a few layout nodes, and lots were destroyed because the layout cache was full (red color)