Figure 15.97. Tool Options Preferences
This page lets you customize several aspects of the behavior of tools.
General
You can edit layers with disabled visibility (the eye icon in the layer dock).
Self-explanatory
Self-explanatory
Self-explanatory
Scaling
When you scale something, each pixel in the result is calculated by interpolating several pixels in the source. This option determines the default interpolation method: it can always be changed, though, in the Tool Options dialog.
There are five choices:
This is the fastest method, but it's quite crude: you should only consider using it if your machine is very seriously speed-impaired, or when you are designing pixelized images.
A simple form of interpolation which is good enough for most purposes.
This is the default choice, but also slower than Linear. In general this gives better results than Linear, but there are some cases where it can actually look worse.
This method performs a high quality interpolation. Use the NoHalo method when you downscale an image to less than a half of the original size.
This method performs a high quality interpolation. Use the LoHalo method when you do not reduce the size much (rotate, shear).
Paint Options Shared Between Tools
You can decide here whether changing the brush etc for one tool should cause the new item to be used for all tools, or whether each individual tool (pencil, paintbrush, airbrush, etc) should remember the item that was last used for it specifically.
Move tool
You can decide here whether changing the current layer or path when using the move tool and without pressing any key.