- added decimate modifier & removed old decimate interface
(currently lacks warning about destroying data, and there needs
to be a way for modifiers to return errors back to the interface)
- allow applyModifier to return NULL to indicate error
- unfortunately new decimate modifier means it does not know exact
number of faces in mesh (other modifiers may come before) and so
instead interface uses a percentage. if people need exact face
count slider then I will have to think of some hack to fit this
in. note that it does display the output face count so its possible
to tweak the pct to get what you want regardless.
- removed python Wave object
If you are bored now how much easier it is to implement something
like decimate as a modifier. Very few changes to interface, very
few entry points.
- warning fixes (unused vars)
- added do_lib_versions for patches that need to happen
after linking and updated some patches.
There are still issues where patches can go wrong, particularly
if an Object is linked from another file. However, this should
fix all crashes.
- added ModifierTypeInfo.freeData function
- added modifier_{new,free] utility function
- added ccgSubSurf_getUseAgeCounts to query info
- removed subsurf modifier faking (ME_SUBSURF flag is no
longer valid). subsurf modifier gets converted on file load
although there is obscure linked mesh situation where this
can go wrong, will fix shortly. this also means that some
places in the code that test/copy subsurf settings are broken
for the time being.
- shuffled modifier calculation to be simpler. note that
all modifiers are currently disabled in editmode (including
subsurf). don't worry, will return shortly.
- bug fix, build modifier didn't randomize meshes with only verts
- cleaned up subsurf_ccg and adapted for future editmode modifier
work
- added editmesh.derived{Cage,Final}, not used yet
- added SubsurfModifierData.{mCache,emCache}, will be used to cache
subsurf instead of caching in derivedmesh itself
- removed old subsurf buttons
- added do_modifiers_buttons to handle modifier events
- removed count_object counting of modifier (subsurfed) objects...
this would be nice to add back at some point but requires care.
probably requires rewrite of counting system.
New feature: Incremental Subsurf in Object Mode
The previous release introduce incremental subsurf calculation during
editmode but it was not turned on during object mode. In general it
does not make sense to have it always enabled during object mode because
it requires caching a fair amount of information about the mesh which
is a waste of memory unless the mesh is often recalculated.
However, for mesh's that have subsurfed armatures for example, or that
have other modifiers so that the mesh is essentially changing on every
frame, it makes a lot of sense to keep the subsurf'd object around and
that is what the new incremental subsurf modifier toggle is for. The
intent is that the user will enable this option for (a) a mesh that is
currently under active editing or (b) a mesh that is heavily updated
in the scene, such as a character.
I will try to write more about this feature for release, because it
has advantages and disadvantages that are not immediately obvious (the
first user reaction will be to turn it on for ever object, which is
probably not correct).
modifier objects
- make unlink_object clear Lattice & Curve Modifier object references
- add expand_modifiers for liblinking
There really needs to be a more consistent and unified way of dealing
with datablock references between objects. It should be possible to
make this generic so that lib_link, expand_, DEP graph, unlink,
oops and maybe outliner can use a single API. The code to deal with
this is too bulky and error prone at the moment.
based on time change. would be nice if dep graph could handle this.
- made dep check if modifiers need update on time change
- fix render crash (access null)
- added new Build Effect modifier type. compared to old one works as
a full member of modifier system, means can apply subsurf, etc on
it, reorder, what have you. and it is all nice and self contained.
- removed old Build effect, old files convert to new style on load
- couldn't help myself, added a randomize feature to build effect
- removed Python BuildEffect support
- removed mesh_deform (merge into mesh_modifier)
- switch python lattice_apply function to use object_apply_deform,
this isn't exactly equivalent but the python system shouldn't
have been calling that deep into the kernel anyway.
New feature: Modifier stack
- added Object.modifiers (list of ModifierData elements)
- added DNA_modifier_types.h
o contains type definition for the file data for the various
modifier types
- added BKE_modifier.h
o contains modifierType_get_info (access to modifier type registry)
o structs and defines for runtime modifier usage
- updated mesh_calc_modifiers to evaluate modifier stack (note that
for the time being it also evaluates the old style modifiers so files
should load and work as normal).
- add file handling modifier code (todo: don't replicate on object copy)
- add modifier stack UI code (lives in object panel)
Only real new feature at the moment is that you can apply lattices and
curves *after* a subdivision surface which was never possible before.
Todo:
- DEP graph updating does not work correctly yet, so you generally have
to tab cycle to see results.
- editmode calculation does not use modifier stack.
- bug fixes (there must be a few in there somewhere)
- changed mesh_modifier, sbObjectStep, object_deform to take vertexCo
argument instead of operating on mesh
- fixed bug where a derived mesh would not be returned in editmode
- removed object_wave, replaced by init_wave_deform and calc_wave_deform
- moved cached DerivedMesh to Object, not Mesh... fixes heisenbugs
with linked objects
builds new DerivedMesh... caching can come later)
- split DerivedMesh returning functions into editmesh and mesh groups
- got rid of DL_NORS displist type (get built on fly for mesh when
needed)
- got rid of Mesh.disp (yay!)
- started to punch DerivedMesh returning functions into shape to introduce
modifier stack
- switch renderer to store orco's in a hash table instead of
caching in mesh (I don't like the renderer caching data
in the actual mesh structure)
- added mesh_create_orco[_render] function
The B-Bones!
(where the B can be read as 'block' or 'bezier' or 'b-spline')
- set option on/off in edit buttons, armature panel
- scaling of B-bones only works in editmode, use ALT+S to make bones fatter
or thinner. Also works for constrainted transform
- In pose mode, you now have a buttons panel with per-bone settings too
Here you can find the "segments" button, which allows bones to
interpolate between previous/next bones, including roll.
- Buttons to control interpolation ("In" and "Out" are disabled, doesn't
work satisfying yet
NOTE: this doesn't give deform yet! Main purpose for now is to test if this
drawing method serves to animate/pose armatures well.
Still need to review proper interpolation methods... maybe bezier is too
limited.
- XRAY draw for armatures now is generic "Draw Extra" option for any
Object type. This feature just moves drawing to the end, after clearing
the zbuffer again.
- Solid draw mode now displays materials with Alpha, with the new
"Draw extra" option "Transp" set. This also moves drawing transparent to
the end, but it doesn't sort the transparent faces. Still looks OK.
Note: this is not enabled in mesh editmode. Here all the fancy extra
drawing just makes it nearly impossible to do OK.
- Re-ordered Object Buttons -> "Draw" panel
Fixes:
- do_versions had check for the UserDef in it (new ogl texture cache).
that can't be there, should be in usiblender.c (stupid exception).
- same error caused reading older files to not always fix version
changes on armatures (commit yesterday).
- Outline select drawing happened also on picking-select draw, needless
slowdown.
- cleaned up 'version correction' a bit. There was code slowing down
current files even (armatures were evaluated all, even when not in
current layer, was added to make sure they get converted OK).
Send me old files that crash now! :)
- on reading older files with path-constraints, a fix had to be added.
- error "badd call to addqueue' found when using header-less window for
filewindow
Using linked library files with relative paths, didn't set the correct
relative root... so it only worked with files in the same directory.
ALso fixed the button-lock in material buttons, it didn't allow to see
which materials were linked to the mesh/object.
actually) only the relative rotation is used.
- Added scale=1.0 initializer in saving files, this fixes a little bit
better upward compatibility
- Still there are cases where bones flip 180 degrees when you read it with
older Blenders... not sure what it is caused by
This fixes the active object in place when orbiting the view.
Choppy 15fps demo can be seen there: http://www.elysiun.com/~theeth/bf/around_active.html
Image Memory Grabage Collection
This adds memory handling to the image code. An image is tagged each time it is used.
During a collection cycle (frequency of cycles is user defined), if an image is older
than a user defined limit, its buffer gets deallocated. This also applies to gl memory buffers.
Images that are loading in GL memory needs to go through two time outs before being fully deallocated: the first time out deallocated the gl memorry, the second the buffer in ram.
Notes:
Image buffer loaded from python gets tagged as permanent upon load. That tag is removed when python stops using the image.
I might have missed some tagging spots, especially in the rendering pipeline. Someone with more knowledge about this code should check to be careful.
Tagging is done on every access, for rendering, this will probably be a performance hit. A scheme should be developped to only tag when the rendering is completed.
Collecting is called in draw_object, most likely not the best place to do it.
Safe from undo, since using undo deallocates memory anyway (like when loading a blend file with one currently opened)
Userpref DNA changes:
I've changed a couple of flagging variables from short to int. Some because they needed more space, others to keep SDNA happy.
Info window changes:
I've grouped a couple of buttons in aligned blocks and changed the color of mutually exclusive options to make them clearer.
Matt didn't do any changes on that in tuhopuu, so hopefully I'm not stepping on anyone's feet with this.
Also changed double constants into floats with f in a couple of places (mostly space.c) to make compiler happier.
Aim was to get a total refresh of the animation system. This
is needed because;
- we need to upgrade it with 21st century features
- current code is spaghetti/hack combo, and hides good design
- it should become lag-free with using dependency graphs
A full log, with complete code API/structure/design explanation
will follow, that's a load of work... so here below the list with
hot changes;
- The entire object update system (matrices, geometry) is now
centralized. Calls to where_is_object and makeDispList are
forbidden, instead we tag objects 'changed' and let the
depgraph code sort it out
- Removed all old "Ika" code
- Depgraph is aware of all relationships, including meta balls,
constraints, bevelcurve, and so on.
- Made depgraph aware of relation types and layers, to do smart
flushing of 'changed' events. Nothing gets calculated too often!
- Transform uses depgraph to detect changes
- On frame-advance, depgraph flushes animated changes
Armatures;
Almost all armature related code has been fully built from scratch.
It now reveils the original design much better, with a very clean
implementation, lag free without even calculating each Bone more than
once. Result is quite a speedup yes!
Important to note is;
1) Armature is data containing the 'rest position'
2) Pose is the changes of rest position, and always on object level.
That way more Objects can use same Pose. Also constraints are in Pose
3) Actions only contain the Ipos to change values in Poses.
- Bones draw unrotated now
- Drawing bones speedup enormously (10-20 times)
- Bone selecting in EditMode, selection state is saved for PoseMode,
and vice-versa
- Undo in editmode
- Bone renaming does vertexgroups, constraints, posechannels, actions,
for all users of Armature in entire file
- Added Bone renaming in NKey panel
- Nkey PoseMode shows eulers now
- EditMode and PoseMode now have 'active' bone too (last clicked)
- Parenting in EditMode' CTRL+P, ALT+P, with nice options!
- Pose is added in Outliner now, with showing that constraints are in
the Pose, not Armature
- Disconnected IK solving from constraints. It's a separate phase now,
on top of the full Pose calculations
- Pose itself has a dependency graph too, so evaluation order is lag free.
TODO NOW;
- Rotating in Posemode has incorrect inverse transform (Martin will fix)
- Python Bone/Armature/Pose API disabled... needs full recode too
(wait for my doc!)
- Game engine will need upgrade too
- Depgraph code needs revision, cleanup, can be much faster!
(But, compliments for Jean-Luc, it works like a charm!)
- IK changed, it now doesnt use previous position to advance to next
position anymore. That system looks nice (no flips) but is not well
suited for NLA and background render.
TODO LATER;
We now can do loadsa new nifty features as well; like:
- Kill PoseMode (can be option for armatures itself)
- Make B-Bones (Bezier, Bspline, like for spines)
- Move all silly button level edit to 3d window (like CTRL+I = add
IK)
- Much better & informative drawing
- Fix action/nla editors
- Put all ipos in Actions (object, mesh key, lamp color)
- Add hooks
- Null bones
- Much more advanced constraints...
Bugfixes;
- OGL render (view3d header) had wrong first frame on anim render
- Ipo 'recording' mode had wrong playback speed
- Vertex-key mode now sticks to show 'active key', until frame change
-Ton-
- For avoiding the 'overlapping character problem' in Text objects, I had
changed the sorting code for filling nurbs to use nu->charidx (a new
variable incremented with each new character) instead of nu->mat_nr
(which used to work for material indices inside a 2D Curve).
- This broke material indices in normal 2D Curves completely, thus:
- nu->charidx is now not only used for seperating
characters in text objects for filling, but also for normal 2D curves
when they contain material indices. In fact, charidx is just set to
the material index.
- There's compatibility code in readfile.c that sets nu->charidx to nu->mat_nr
when reading curves from files that are not text objects
- So, the big conclusion: Instead of using material indices for creating
'filling groups', filldisplist() now uses nu->charidx, which is set
appropriately when reading old files and assigning/deleting material
indices in curves.
- This is all pretty obscure and hard to explain. If I haven't been clear,
ask.
- If it breaks anything, complain!
Important notes:
- Full compatibility with old text objects not fully restored
(word spacing will be 0.0, need to set it manually to 1.0), will
either need version upgrade to 238 or a hack. Will check.
- lorem.c (about to be committed) contains BF copyright notice, but as
BF did not exist a few hundred years ago, probably best to remove it :)
- If you notice any cross-platform issues (especially beloved windows),
please report
- A few tiny warnings left, I will fix those issues still.
The rest has been said already - so have fun testing. And please do!
=== Reminder:
=== Documentation at http://blender.instinctive.de/docs/textobject.txt ===
Appending from files also set the string for "last loaded file". That's
a real bad one... so you can save over accidentally libraries.
Another fix: appending from files that have dynamic other files linked
with relative paths didn't work. (Yah, now it should all work!)
renderconverter change is just a more clear comment.
The bugfix for linking recursively from files worked, but there was another
bug hidden... only showed up when actually *using* the recursive feature,
and not with only testing the bugfix. :) Famous coder error, but yah, we
got luckily users to test it!
I'v asked the reporter to give it more extensive testing!
Darn #$%#$# code cleanup in NaN days screwed up recursive feature of
linking dynamically data among Blender files. It now only supported 1
'deep'.
Now you can link data from file1 via file2 into a file3, etc. Nasty code,
but supposed to work :)
Patch provided by Ricki Myers. Works quite obvious, see Theme editor too!
Notes about the provided code;
- The default syntax colors were screaming! Toned it down to match the
default dark on lightgrey background better.
- Added: initializing colors in saved themes (usiblender.c)
- The implementation of the button for this option was quite clumsy...
Blender UI options services this a lot easier.
(Same fixed for 'line numbers' option)
- Bracket matching now uses as color a mix of backdrop and the
selected-text color. Noticed my texteditor did it too...
-> I really miss comments in code describing a little bit the thought
process behind the code. Like a short introduction on this feature
in the top of the drawtext.c, little remarks on new functions.
ALso in patch tracker or the mailinglist no docs was mentioned?
-> drawtext.c now gets messy quickly... lack of overview, structure,
and confusing mix of personal coding styles.
For not-active supported code dangerous...
Using the Play button in timeline, now uses an event-driven system to
update the animation system and signal windows to redraw. Meaning the
full UI remains responsive!
Check the new Pulldown "Playback" to set which windows you like to see
updated. Same settings is used for LMB 'dragging' frames in Timeline.
Implementation notes;
- the Icon for 'Pause' (or stop) has to be made yet, I commit this from
my laptop... all was coded during a 2 x 5 hour train ride to germany
- the anim playback system (ALT+A too) now uses correct "frames per
second" as maximum speed. Buttons can be found in 3 places in the UI,
also added it as pulldown item
- The system works with 'screen handlers', which has been coded with
using Python (networked) events or verse in mind too. A doc on that
will follow.
- the buttons code has been made 'resistant' to animated UIs too,
preventing flashing of hilites.
- All subloops (like transform) stop playback, with exception of MMB
view manipulations.
As extra; found tweak to make Textured AA fonts draw without distortion.
Looks perfect here on laptop now (like Pixmap fonts) and is 20x faster.
- Made Blender.event var (previously only used by script links) hold ascii value -- where it applies -- of current event during events callback registered with Draw.Register(gui, events, button_events). Useful for gui scripts like Campbell's Python console. No problem using this var to hold the value, since in gui scripts it was not used (always None).
- Updated Window and Window.Theme with new theme vars and the Time space.
- Script links:
-- Added "Render" event for script links (runs twice, second time as "PostEvent", for clean-up actions). Now FrameChanged links don't run when a single pic is rendered.
-- Added "Enable Script Links" button in the script buttons tab. Now this bit gets saved in .blends along with the rest of G.f, so users can define per .blend if they are on or off by default. "blender -y" also disables all slinks as happened before with OnLoad ones only.
-- Other small changes in the script buttons tab:
When a link is added (button "new"), it becomes the active one for the window, no need to press a button to reach it.
Also, a pupmenu showing all available texts is shown when "new" is pressed, so users can choose a text w/o having to type. Cancel the popup to leave the string button empty (link exists, but has no script assigned). A pulldown would be better UI-wise, but it's kinda weird to show both scripts and normal texts (Blender doesn't differentiate them) in a script links pulldown. With a popup we can show only texts ending in ".py" (not done in this commit, need opinions) and if the script has no or another extension, case of many in old and current .blend's, there's still the string box for writing its name.
-- Implemented Ton's space handler script links:
Right now only for the 3d View, but it's trivial to add for others. There are two types: EVENT, to receive 3d View events from a chosen window and DRAW, to draw on the window. Ton's idea was to give scripts a controlled way to integrate better within Blender.
Here's how it works:
- scripts must have a proper header, like:
# SPACEHANDLER.VIEW3D.EVENT
and then they are shown in 3d View's View menu, "Space Handler Scripts" submenu. Check (mark, click on it) a script to make it active.
EVENT handlers should consult the Blender.event var to get the current event, which can be compared with values from the Draw module:
import Blender
from Blender import Draw
evt = Blender.event
if evt == Draw.AKEY:
print "a"
elif evt == Draw.LEFTMOUSE:
print "left mouse button"
else:
return # ignore, pass event back to Blender
Blender.event = None # tell Blender not to process itself the event
DRAW handlers are free to draw to their owner 3D View. OpenGL attributes and modelview and projection matrices are pushed before running the handler and poped when it finishes.
To communicate between EVENT and DRAW handler scripts we have the Blender.Registry module, as always.
Still need to code some nice example, which should also serve to test properly space handlers. Simple tests went fine.
- doc updates about the additions.
=======
Note: the UI part of the space handlers and script links is of course open for changes, I just tried to make it understandable. Probably we won't use the scriptlinks icon for "None Available" (check 3d View -> View -> Space Handler Scripts), though it hints at what space handlers are. The tooltips may not be accepted either, since other menus don't use them. Opinions welcomed.
Main change is that it's an own Space type now, not part of the Audio
window... the audio window should restrict to own options. This way
functionality is nicely separated.
Since it's the first time I added a new space (since long!) I've made an
extensive tutorial as well. You can find that here:
http://www.blender3d.org/cms/Adding_new_Space_Window.557.0.html
Notes for using timewindow;
- Add time markers with MKey
- CTRL+M gives option to name Marker
- Markers cannot be moved yet...
- Pageup-Pagedown keys moves current frame to next-prev Marker
- Xkey removes Markers
- If an object has Ipos or an Action, it draws key lines
- CTRL+Pageup-Pagedown moves current frame to next-prev Key
- Press S or E to set start/end frame for playback
Notes about the implementation in Tuhopuu:
- Add new Marker now selects new, deselects others
- Selecting Marker didn't work like elsewhere in Blender, on click it
should deselect all, except the indicated Marker. Not when holding SHIFT
of course
- Not exported functions are static now
- Removed unused defines (MARKER_NONE NEXT_AVAIL)
- Drawing order was confusing, doing too many matrix calls
- Removed not needed scrollbar, added new function to draw time values.
(Has advantage the MMB scroll works not confusing on a scrollbar)
- Added proper support for 'frame mapping'
- The string button (name Marker) had a bug (checked str[64] while str
was only 64 long)
- String button itself didn't allow "OK on enter"
- Made frame buttons in header larger, the arrows overlapped
- Removed support for negative frame values, that won't work so simple!
Proportional edit:
- Proportional mode added to header as button/menu. Including new option
to have only connected geometry influenced.
- Added icons for proportional & proportional modes
- Make proportional edit data part of Scene, so all gets saved.
The Global flag G_PROPORTIONAL was removed
- Made sure #defines get used properly, also tweaked order for proportional
so it starts with regular 'smooth' by default.
- Use ALT+O in editmode to switch to new proportional 'connected' mode
Other UI stuff:
- in EditMode, the layer buttons get hidden... the amount of icons in
3d header grows to fast. :)
- made less ugly icons for the Manipulators. Still can be better.
- Added alpha-filter for pre-processing Icon-image, giving nicer display
of icon-antialising on dark or bright backdrops
- disabled Manipulators when in editmode, and current layers don't show
the edited data.
- Added the value used to define Normal size (editmode draw) in Scene too,
so it gets saved.
Works as follows;
- press the 'show bake settings' button (no space left... :)
- define start/end frame for bake, and an interval step.
The baked result interpolates nicely (Bspline, 4 keys) so in general a
step size of 2 or 3 still gives OK results.
- Press "BAKE". This will do a full animation + playback. Press ESC if it
you don't want it.
Once Baked, the BAKE button becomes a FREE BAKE. As reminder the softbody
buttons get blocked with error() menu.
This saves OK in a file. Renders any frame, including fields and moblur.
You can also set a "Timeoffs" for the softbody. And yes, this should be
in the NLA once... :)
NOTE! With this commit, files saved with the old (first commit) version by
Jens Ole won't read the settings back... he stored all sofbody variables in
Object, which was moved to a new struct when I did my first commit on SB
(over a month ago)
Also note that I moved particle deflecting & softbody to a new include.
Works like a charm... well it now replaces the old base-sorting hack. :)
Next stage will be to define how to further integrate it. Plus some
minor code cleanups... static/internal functions versus external, etc.
submitted by Alexander, changes/improvements are:
- Moved to new Panel in Scene buttons "Post Effects". Together with other
postprocessing options, such as Edge render. It is also not called DoF,
this because that's a bit pretending too much then. It's a zblur still!
- Made it render Alpha as well
- Made it use and deliver float buffers
- Huge cleanup of zblur.c code, was very messy. It was alling things in render
code without need even (win matrices, transform faces, etc)
- Fixed errors in using Z values (zbuffer is signed int)
- Removed very weird gamma corrections for front/back half
- Tweaked gaussian table, allow variable 'Sigma' to be set for gauss curve
- Didn't copy 'auto focus' yet. Use of this is very limited, and gives
false expectations, nor works for rendering anims with deamons well.
Main issue remains: it's not a very advanced feature... I still doubt
very much if this deserves to be released. Spent 2 days on trying to get
the key issues solved, with not much results.
- gauss filter code has weird side effects on large blur size
- having unsharp (blurred) in front also blurs what's around in back.
only blurred in back with sharp in front works a little bit
- severe aliasing errors... also due the code splitting in 2 halves
- doesnt work with unified yet
- won't work for halos, spot halos or transparant faces
Anyhoo... It was promised to be committed, so now artists can play with it.
Who knows it's useful after all, or some fixes can be implemented. :)
compile. Normally it would probably be best just to wait till Ton committed
but its still pretty early and I didn't want people complaining all night.
Hope its no problem!
This will add Minneart diffuse and WardIso specular to our shader menu.
Minneart gives nice control over darkness/brightness areas, the wardIso
over 'plastic' style sharp or fuzzy specular.
Webpage is being made with nice samples. Will be in release log.
Jorge: one change is in the do_versions, you inserted it on wrong location.
- Added browsing for vertex group for "Goal" in SoftBody buttons.
- Means the default name "SOFTGOAL" isn't needed anymore
- temporally, on file read, the "SOFTGOAL" vertex group is set, if exists
- removing vertex group possible too
- changed softbody.c code to use this
- Added Softbody effect for Lattices (not too useful yet without
vertexgroups though)
- Added default vertex "goal" value + button, to be assigned when no
vertexgroup exists (or vertex isn't in the group)
- Made softmin and softmax work as documented (defining min and max range)
- made changes in buttons send 'update' signal to softbody
And:
- added Nkey Properties to show lattice coordinates
User level notes are in Wiki here;
http://wiki.blender.org/bin/view.pl/Blenderdev/Softbodies
And will be added in blender3d.org CMS later.
Tech level notes are still pending, but here's the most relevant ones;
- made ob->soft struct SoftBody to hold all settings, and read/save in
files
- added (temporal!) conversion for the old settings. So: read old files
with softbody experiments now, and save over!
- cleaned API calls for softbody, which are only 5 of them now:
sbNew()
sbFree()
sbObjectStep() (animation steps)
sbObjectToSoftbody() (full re-initialize data)
sbObjectReset() (only reset motion)
- API calls accepts time in frames now, within softbody.c it converts
Further, internally code was cleaned some (missing tabs etc). Also tried
to keep a well defined structure with hints how to add support for more
objects. Can write notes about that...
- made more general calls with args for drawing types
- made it accept transparency for all modes (used while transform now)
- added argument to detect 'combo' mode, gave offsets to translate/scale
handles in combos.
- added 'pie chart' on view-aligned rotate for widget
- made trackball for rotate widget rt==4 behave compatible
- removed redundant code for 'ghosting'
