Do not generate materials/images/UVs if they are missing.
Now we spawn a panel ("Missing Data") with operators to generate the missing data and
pop a warning if user tries to paint without them.
The reason we have reverted this is that it is too easy to end up with more textures
than we wanted. It was impossible to enter texture paint without having textures added,
and code makes too many assumptions about what user may want.
Discussed during Sunday's meeting.
This might be a candidate for 2.72a but I'm not sure how other artists will take this
(and how refined and crash-free it is), better make a few iterations first.
And for interested parties...test please, don't wait until after a release to poke with such issues.
Also, add slot operator now adds a new unconnected image node in cycles. Only
used in the "Missing Data" panel. This should be a separate commit but I am squashing it into the same commit because
it relies too much on changes done here and can be reverted easily if complainstorm occurs again.
This is only a (hacky) partial fix, actually, since `RNA_property_animated()` will still
not work in those cases... Better that than nothing, though.
Thanks to Campbell for review.
The issue was caused by the fact that we never used to store the
generated image color in DNA, so image reload will loose this
information.
Now we store the color in DNA, making ti so re-loading the image
will preserve it's generated color.
It is now also possible to change generated image color using the
color swatch in image properties after the image was created.
The following two sort keys are added for sorting chains.
* Projected X - Sort by the projected X value in the image coordinate system.
* Projected Y - Sort by the projected Y value in the image coordinate system.
A new line style option for the selection of first N chains is also added.
Moreover, the chain sorting and chain selection operations are now executed
in this order instead of the reverse order used previously. The UI has also
changed accordingly. This functional change is backward compatible and
won't result in visual differences.
Update lzo library due to security issue
Update lzo to latest version. This fixes a security issue (reported in T41974)
This also fixes some (false-positive) valgrind warnings.
Reviewers: sergey
Differential Revision: https://developer.blender.org/D803
Fix alpha under equation according to porter-duff and user docs that
state that effect should invert he order of channels and reduce to alpha
over when factor is 1.0.
BTW, we don't really expose any factor here...lost feature from 2.49?
- clamp selection on entering editmode (Python may have changed).
- BKE_vfont_select_get no longer succeeds with an empty selection
this caused many operators to go ahead and operate on zero size array.
