Follow-up Comment #4, bug #19732 (project mypaint):
On a related note. Martin investigated moving to using 32bit floats instead of
16 bit integers for the brush engine. This is wanted when using GEGL so that
standard operations can be used without color format conversions*.
Drawing performance remained very close across different brush sizes. The main
issue is that memory consumption will be twice as high. Hopefully once we use
GEGL this will be OK as GeglBuffer can transparently keep the buffers on disk
instead of in memory.
* The alternative is to implement fast-paths for our 16bit integer format to
all the GEGL operations we want, but that is probably not worth the effort.
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