exception of the clone tool.
One level undo for image- and texturepaint, only storing those tiles
that changed.
Test to improve texturepaint performance using glTexSubImage2D, only
enabled with 2^n sized textures and mipmapping off. Painting a 2048x2048
texture is then pretty smooth here, as long as the geometry is not too
complex.
- Code for brush spacing and timing was rewritten, making spacing more even.
Example: http://users.pandora.be/blendix/brush_spacing.jpg
- Instead of Stepsize for regular brushes and Flow for airbrushes, there is
now Spacing for both, and Rate for airbrushes.
- Airbrush now works more like it does in the Gimp now, by maintaining the
spacing even if the brush moves faster than the painting rate.
- Some preparations to make brushes work in texture paint mode.
- Added a new Brush datablock, only used by image paint, but intended
to be used in texture paint, vertex paint, weight paint and sculpt
mode also.
- Being a datablock, these brushes can be saved, appended and linked.
They have a fake user by default, to make sure they are saved even if
not selected.
Image Painting:
- Replaced the img module with C code in imagepaint.c
- Airbrush is no longer a separate tool, but rather an option that can
be used for soften, smear and clone also.
- Blend modes mix, add, subtract, multiply, darken and lighten have been
added, code taken directly from vertex paint.
Note to project files maintainers:
- The img module was removed from SCons and Makefiles, and this should
be done in other build systems also. I'll wait to remove the module
from cvs, to not break compilation.
- Move UVTEXTTOOL variables into global Gip struct (like Gvp for
vertex paint). This will probably be moved into SpaceImage later,
so it is saved with the .blend file.
- Disable tool drawing. a better solution needs to be found.
- Panel button layout is still the same, this will change.
- Removed the NAN_TPT define, it has no use anymore.
