Properties¶

Backdrop¶

Reference

Backdrop options.¶

Backdrop Channels: Set the image to be displayed with Color, Color and Alpha, or just Alpha.
Zoom: Sets how big the backdrop image is.
Offset: Change the screen space position of the backdrop, or click the Move button, or shortcut Alt-MMB to manually move it.
Fit: Automatically scales the backdrop to fit the size of the editor.

Reference

Performance settings.¶

This panel help you to tweak the performance of the Compositor.

Render: Sets the quality when doing the final render.
Edit: Sets the quality when making edits.
Chunk Size: Max size of a tile (smaller values give a better distribution of multiple threads, but more overhead).
OpenCL: This allows the use of an OpenCL platform to aid in rendering. Generally, this should be enabled unless your hardware does not have good OpenCL support.
Buffer Groups: Enables buffering of group nodes to increase the speed at the cost of more memory.
Two Pass: Use two pass execution during editing: the first pass calculates fast nodes, the second pass calculates all nodes.
Viewer Border: This allows to set an area of interest for the backdrop and preview. The region is started by Ctrl-B and finished by selection of a rectangular area. Ctrl-Alt-B discards the region back to a full preview. This is only a preview option, final compositing during a render ignores this region.
Auto Render: Re-render and composite changed layer when edits to the 3D scene are made.