Reference layers get their image content from an external source — either a pixel-based layer in the current document or a separate file. They provide a low-resolution representation of the original image that you can quickly manipulate in ways that would otherwise require more time. Working with a reference layer allows you to resize, rotate, or slant a layer onscreen by dragging its handles. The changes are immediately displayed in the document window. When you finish making changes, you can commit the reference layer back to a standard layer. Corel Painter examines the source image to restore the original resolution.
You cannot edit the image data in a reference layer. If you try to paint on or apply effects to a reference layer, Corel Painter prompts you to commit it back to a pixel-based layer.
You can create a reference layer by basing it on an existing layer or by placing an image. For more information, see Opening files.
You can also create a reference layer by right-clicking a layer in the Layers panel, and choosing Convert To Reference Layer.
You can also create a reference layer by selecting the layer, and choosing Layers Convert To Reference Layer.