* Added icons to viewport shading enum. On a side note, why do we have an icon called "ICON_POTATO" for texture mode?
* Fixed clay brush at zero-strength bug, was dividing by zero. Still todo is fixing clay brush strength relative to other brushes.
* Added a new Paint type in scene DNA. This is now the base struct for Sculpt.
* The Paint type contains a list of Brushes, you can add or remove these much like material and texture slots.
* Modified the UI for the new Paint type, now shows the list of brushes active for this mode
* Added a New Brush operator, shows in the UI as a list of brush tool types to add
* Made the sculpt tool property UI smaller and not expanded, expectation is that we will have a number of preset brushes that will cover the basic sculpt brush types
TODO:
* Vertex paint, weight paint, texture paint need to be converted to this system next
* Add brush presets to the default blend
* Replaced FACESEL_PAINT_TEST macro with paint_facesel_test. This removes one more thing from BKE_global, and it'll make it easier to localize.
* Fixed sculpt paint cursor sometimes not showing.
* Made sculpt mode local to object.
* This also fixes loading files from 2.4x saved in sculptmode
Touched a lot of things here, let me know if anything breaks
TODO:
* The other paint modes should be converted as well
* Moved the brush texture settings to MTex/TextureSlot. The mapping settings now show up in the texture panel, pretty much like they do for textures used with materials.
TODO:
* Tiled mode should not show Z size setting
* Add a locked mode so that texture size can be changed uniformly like in 2.4x
* Added toolbar UI for setting "anchored" mode
* Added a "persistent" mode for the layer brush; basically you can keep sculpting on the same layer between strokes when this is on. There's a button to reset the base so you can add another layer on top of that, and so on.
This feature was suggested by Blenderer on BA, thanks!
Note, I think these options could use better names in the UI, but I couldn't really think of anything very descriptive, suggestions welcome
* Fixed the NKEY panel not updating when switching to sculpt mode
* Removed some old XXX'd code for testing textures, can replace that now with proper brush-texture UI
== Re-added smooth stroke ==
UI: toggle is just in the sculpt menu for now. Also changes the sculpt paint cursor slightly, draws a line between previous and current locations.
It's a different implementation than in 2.4, works like this:
The stroke interpolates between the last mouse location and the current location, weighted towards the previous location. If the stroke gets within a certain radius of the current mouse location, the stroke stops. This radius allows for sharp turns in the stroke.
Todo: there are two hard-coded parameters that should become user settable, that's the weighting between previous and current locations, and most important, the no-update radius.
Note also that this option was added as a per-brush flag, worth discussing whether that's the correct place, or whether it should be a sculpt setting like symmetry?
== Improved stroke spacing ==
The previous implementation of stroke spacing simply guaranteed that stroke dots would not occur any closer than the space setting. It now forces stroke dots to always be the specified distance apart.
Todo: Performance gets pretty awful with a small spacing setting, this needs optimization.
Improved sculpting in perspective mode; starting a stroke on the background would sometimes result in the brush having a huge effect on the mesh. Fixed by waiting to start the stroke until the mouse moves over the model.
The fix is not quite perfect, because detection of the edge of the model is based on the depth buffer, so other things that change the depth buffer, like the grid and axis lines in the 3d view, can throw off the calculation.
Removed a bunch of old code that was #ifdef'd out. Mostly relates to partial visibility and partial redraw. Both of these are important features, but need better design updated for 2.5.
Also removed the old (huge/ugly!) sculpt() function that is now handled by the stroke operator code.
Some improvements to the layer brush; the displacement is now tied to brush size, like for draw and inflate.
Fixes for layer brush in subtract mode and anchor mode.
Made some improvements to how brush strength works.
* For the draw and inflate brushes, the brush's 3D radius is used to set the "goal" distance, towards which vertices move. A strength setting of 1.0 will move verts there immediately (with the usual exceptions of tablet pressure, texture/curve input, etc.)
* Also changed strength calculation to use the square of the strength slider, so that you don't have to be as finicky setting a low brush strength.
* For smooth brush, added an extra loop through the verts. So, a bit slower, but now verts take into account more than the immediate vertex ring.
TODO:
Still some magic numbers:
* Pinch limits the effect to moving vertices half of the way towards brush center. I see no use for a 100% pinch (it pretty much destroys the mesh.) Even half may be too high a limit, but this is hard to place an exact number on.
* Smooth has two magic numbers, the strength fudge factor and the number of smooth repetitions (currently 2.)
* The way the layer brush works is left unchanged for now.
* Added icon to property and enum property items. The latter is
responsible for the large number of files changed.
* For RNA functions, added PROP_RNAPTR flag to ask for a PointerRNA
as argument instead of a C pointer, instead of doing it implicitly
with the AnyType type.
* Material: properly wrap diffuse/specular param variables, and
rename some things for consistency.
* MaterialTextureSlot: added "enabled" property (ma->septex).
* Image: make animated property editable.
* Image Editor: make some things editable, notifiers, respect state.
* Context: fix issue with screen not being set as ID.
Start of planned DerivedMesh refactoring. The mface
interfaces in DerivedMesh have been renamed to reflect
their new status as tesselated face interfaces (rather
then the primary ones, which are now stored in mpolys).
short review: mpolys store "primary" face data, while
mfaces store the tesselated form of the mesh (generally
as triangles). mpolys are defined by mloops, and each
mpoly defines a range of loops it "owns" in the main
mloop array.
I've also added basic read-only face iterators, which
are implemented for CDDM, ccgsubsurf, and the bmeditmesh
derivedmesh. Since faces are now variable-length things,
trying to implement the same interface as mfaces would not
have worked well (especially since faces are stored as
an mpoly + a range of mloops).
I figure first we can evaluate these simple read-only
face iterators, then decide if a) we like using iterators
in DerivedMesh, b) how much of it should use them, and c)
if we want write-capable iterators.
I plan to write official docs on this design after I get
it more stable; I'm committing now because there's a rather
lot of changes, and I might do a merge soon.
Attempt to make multires updating a little cleaner by
assuming that no update needs to be performed, and only
doing the update when the modified flag is set (either
by sculpting or using some other tool that needs an update.)
* Image painting back. 2d paint, 3d paint and projection, undo,
pressure, repeating paint operations, etc should all work.
Drawing cursor needs a bit of work, only gets shown when enabling
texture paint mode now.
* Move sculpt, image paint, and vertex/weight paint into a single
sculpt_paint module. Doesn't make much difference now, but nice
to have it together for better integration and consistency in
the future.
