********* Node editor work:
- To enable Nodes for Materials, you have to set the "Use Nodes"
button, in the new Material buttons "Nodes" Panel or in header
of the Node editor. Doing this will disable Material-Layers.
- Nodes now execute materials ("shaders"), but still only using the
previewrender code.
- Nodes have (optional) previews for rendered images.
- Node headers allow to hide buttons and/or preview image
- Nodes can be dragged larger/smaller (right-bottom corner)
- Nodes can be hidden (minimized) with hotkey H
- CTRL+click on an Input Socket gives a popup with default values.
- Changing Material/Texture or Mix node will adjust Node title.
- Click-drag outside of a Node changes cursor to "Knife' and allows to
draw a rect where to cut Links.
- Added new node types RGBtoBW, Texture, In/Output, ColorRamp
- Material Nodes have options to ouput diffuse or specular, or to use
a negative normal. The input socket 'Normal' will force the material
to use that normal, otherwise it uses the normal from the Material
that has the node tree.
- When drawing a link between two not-matching sockets, Blender inserts
a converting node (now only for value/rgb combos)
- When drawing a link to an input socket that's already in use, the
old link will either disappear or flip to another unused socket.
- A click on a Material Node will activate it, and show all its settings
in the Material Buttons. Active Material Nodes draw the material icon
in red.
- A click on any node will show its options in the Node Panel in the
Material buttons.
- Multiple Output Nodes can be used, to sample contents of a tree, but
only one Output is the real one, which is indicated in a different
color and red material icon.
- Added ThemeColors for node types
- ALT+C will convert existing Material-Layers to Node... this currently
only adds the material/mix nodes and connects them. Dunno if this is
worth a lot of coding work to make perfect?
- Press C to call another "Solve order", which will show all possible
cyclic conflicts (if there are).
- Technical: nodes now use "Type" structs which define the
structure of nodes and in/output sockets. The Type structs store all
fixed info, callbacks, and allow to reconstruct saved Nodes to match
what is required by Blender.
- Defining (new) nodes now is as simple as filling in a fixed
Type struct, plus code some callbacks. A doc will be made!
- Node preview images are by default float
********* Icon drawing:
- Cleanup of how old icons were implemented in new system, making
them 16x16 too, correctly centered *and* scaled.
- Made drawing Icons use float coordinates
- Moved BIF_calcpreview_image() into interface_icons.c, renamed it
icon_from_image(). Removed a lot of unneeded Imbuf magic here! :)
- Skipped scaling and imbuf copying when icons are OK size
********* Preview render:
- Huge cleanup of code....
- renaming BIF_xxx calls that only were used internally
- BIF_previewrender() now accepts an argument for rendering method,
so it supports icons, buttonwindow previewrender and node editor
- Only a single BIF_preview_changed() call now exists, supporting all
signals as needed for buttos and node editor
********* More stuff:
- glutil.c, glaDrawPixelsSafe() and glaDrawPixelsTex() now accept format
argument for GL_FLOAT rects
- Made the ColorBand become a built-in button for interface.c
Was a load of cleanup work in buttons_shading.c...
- removed a load of unneeded glBlendFunc() calls
- Fixed bug in calculating text length for buttons (ancient!)
Copy Shape Verts Blend (interactive blending copy)
Propagate Verts (copys selected verts from current to all other shapes)
UI for interactive needs work and Propagate verts needs tidying up, propagation does not show yet until TAB :(
In mesh editmode, while editing a shape, select some verts, W Key, "Copy Shape Verts". You will be presented with a list of shapes and once chosen, the selected verts will be moved to the position of the verts from the chosen shape. Most handy use would be reverting part of a shape back to basis e.g.
Making eyebrow shapes, add a key and model the eyebrow shape symetrically with the x-mirror tool
Go out of editmode, copy that shape
Go into each shape and revert 1 side to basis
If the mesh has had verts added/removed since last entering editmode, you need to TAB-TAB first before copying
- Adding execution code for Node trees. Was a bit a puzzle, since I want
it to be multithreading by design. This now is solved by defining a
stack per tree for all data that's being written into. This stack, which
resides now in the NodeTree itself, then can be allocated per thread.
- For testing pleasure, I've added a 'mix node' and a 'show node', so
you can already see it do something. :)
- reshuffled structure, to put things nice together, and have easier node
adding. Current state is still WIP though, structure might change.
For the record; new file node_shaders.c will contain all shader node
definitions, apart from the drawing callbacks.
Next: I'm going to check on Andrea's work on icons now, since this is very
much needed for true shader/composit work.
Now back to release work...
- Sunday merger with bf-blender
- Foundations for new Node editor in Blender, generic framework that can
be used for Material/Texture, Compositing, Logic or maybe even Sequencer.
Note: this doesn't do anything yet, nor save! Is just to get this nice
in CVS now. :)
no shadow a little bit. Uses same threshold function as the "Bias" button.
(That latter still works, and will use an automatic bias value based on the
geometry, to prevent terminator errors in raytracing).
Anyhoo, with this manual bias you can get rid of terminator problems for
weird diffuse shaders now as well (like tangent or fresnel).
Committed a few more files than needed, that's just code cleanup.
This is the case:
- Empty has Group duplicator
- Empty has NLA strips to animate the group
On linking the Empty to another group (with button in ObjectButtons), it
checks for the current strips in NLA, and tries to find the proper objects
in the new Group, based on name matches.
If not found, it sets the strip-objects to zero.
-> Any Group Duplicate now can get local timing and local NLA override. This
enables to control the entire animation system of the Group.
Two methods for this have been implemented.
1) The quick way: just give the duplicator a "Startframe" offset.
2) Advanced: in the NLA Editor you can add ActionStrips to the duplicator
to override NLA/action of any Grouped Object.
For "Group NLA" to work, an ActionStrip needs to know which Object in a
group it controls. On adding a strip, the code checks if an Action was
already used by an Object in the Group, and assigns it automatic to that
Object.
You can also set this in the Nkey "Properties" panel for the strip.
Change in NLA: the SHIFT+A "Add strip" command now always adds strips to
the active Object. (It used to check where mouse was). This allows to add
NLA strips to Objects that didn't have actions/nla yet.
Important note: In Blender, duplicates are fully procedural and generated
on the fly for each redraw. This means that redraw speed equals to stepping
through frames, when using animated Duplicated Groups.
-> Recoded entire duplicator system
The old method was antique and clumsy, using globals and full temporal
copies of Object. The new system is nicer in control, faster, and since it
doesn't use temporal object copies anymore, it works better with Derived
Mesh and DisplayList and rendering.
By centralizing the code for duplicating, more options can be easier added.
Features to note:
- Duplicates now draw selected/unselected based on its Duplicator setting.
- Same goes for the drawtype (wire, solid, selection outline, etc)
- Duplicated Groups can be normally selected too
Bonus goodie: SHIFT+A (Toolbox) now has entry "Add group" too, with a
listing of all groups, allowing to add Group instances immediate.
-> Library System
- SHIFT+F4 data browse now shows the entire path for linked data
- Outliner draws Library Icons to denote linked data
- Outliner operation added: "Make Local" for library data.
- Outliner now also draws Groups in regular view, allowing to unlink too.
-> Fixes
- depsgraph missed signal update for bone-parented Objects
- on reading file, the entire database was tagged to "recalc" fully,
causing unnecessary slowdown on reading.
Might have missed stuff... :)
In Armature Pose-bone panel, the 'hide' button got replaced with a button
where you can type (TAB complete works) a name for a Mesh Object. It then
draws that Object instead of the indicated bone drawing type.
Fixes for bone layers:
- Akey in Editmode didnt work proper (now deselects all non visible bones
too. selection for editmode works on the vertices, not bones...
- Snap in Editmode now respects layers
Works like for Object layers, but local within Armature itself. Each Bone
can be in (16 now) any layer, and the Armature layer defines what is
visible or not. Also note that hiding will still work too.
Since the Blender code is *stuffed* with Bone options now, this commit
requires a good test if all tools we got now comply to layers...
(I counted 130 cases for checking for selected Bones in code!)
In PoseMode; hotkey M will show 'movetolayer' menu. Not in editmode...
then its the mirror menu.
Todo: make action/nla drawing comply to Armature layer settings.
Previous experiment (in 2000) didn't satisfy, it had even some primitive
NLA option in groups... so, cleaned up the old code (removed most) and
integrated it back in a more useful way.
Usage:
- CTRL+G gives menu to add group, add to existing group, or remove from
groups.
- In Object buttons, a new (should become first) Panel was added, showing
not only Object "ID button" and Parent, but also the Groups the Object
Belongs to. These buttons also allow rename, assigning or removing.
- To indicate Objects are grouped, they're drawn in a (not theme yet, so
temporal?) green wire color.
- Use ALT+SHIFT mouse-select to (de)select an entire group
But, the real power of groups is in the following features:
-> Particle Force field and Guide control
In the "Particle Motion" Panel, you can indicate a Group name, this then
limits force fields or guides to members of that Group. (Note that layers
still work on top of that... not sure about that).
-> Light Groups
In the Material "Shaders" Panel, you can indicate a Group name to limit
lighting for the Material to lamps in this group. The Lights in a Group do
need to be 'visible' for the Scene to be rendered (as usual).
-> Group Duplicator
In the Object "Anim" Panel, you can set any Object (use Empty!) to
duplicate an entire Group. It will make copies of all Objects in that Group.
Also works for animated Objects, but it will copy the current positions or
deforms. Control over 'local timing' (so we can do Massive anims!) will be
added later.
(Note; this commit won't render Group duplicators yet, a fix in bf-blender
will enable that, next commit will sync)
-> Library Appending
In the SHIFT-F1 or SHIFT+F4 browsers, you can also find the Groups listed.
By appending or linking the Group itself, and use the Group Duplicator, you
now can animate and position linked Objects. The nice thing is that the
local saved file itself will only store the Group name that was linked, so
on a next file read, the Group Objects will be re-read as stored (changed)
in the Library file.
(Note; current implementation also "gives a base" to linked Group Objects,
to show them as Objects in the current Scene. Need that now for testing
purposes, but probably will be removed later).
-> Outliner
Outliner now shows Groups as optio too, nice to organize your data a bit too!
In General, Groups have a very good potential... for example, it could
become default for MetaBall Objects too (jiri, I can help you later on how
this works). All current 'layer relationships' in Blender should be dropped
in time, I guess...
(WIP, don't bugs for this in tracker yet please!)
- New Panel "Layers" in Material buttons, allows to add unlimited amount
of materials on top of each other.
- Every Layer is actually just another Material, which gets rendered/shaded
(including texture), and then added on top of previous layer with an
operation like Mix, Add, Mult, etc.
- Layers render fully independent, so bumpmaps are not passed on to next
layers.
- Per Layer you can set if it influences Diffuse, Specular or Alpha
- If a Material returns alpha (like from texture), the alpha value is
used for adding the layers too.
- New texture "Map To" channel allows to have a texture work on a Layer
- Each layer, including basis Material, can be turned on/off individually
Notes:
- at this moment, the full shading pass happens for each layer, including
shadow, AO and raytraced mirror or transparency...
- I had to remove old hacks from preview render, which corrected reflected
normals for preview texturing.
- still needs loadsa testing!
- There is now a (temporary) dropdown box in the image window header for
switching between the old an new unwrapper code. So to test the changes
described below you need to enable the new unwrapper code.
- Pinning is now more predictable, if one uv is pinned, the others belonging
to the same vertex are pinned also.
- Live LSCM is much faster, since the LU factorization, the most expensive
part of the computation, is now stored and reused (was Jens' idea).
- Packing multiple uv charts is slightly improved, by doing a binary search
over the texture width. This fixes the case where all the charts are
packed at the bottom of the image.
- LSCM now uses an angle based formulation, and the results seem somewhat
different (maybe slightly better?), didn't find out why yet.
Set the option in EditMode, in 2nd mesh tools panel. It only works on
transform options now (grab/rot/scale), and of course assumes a near-
perfect symmetrical mesh. Mesh Object itself can be on any location
though (and rotated etc).
This commit adds new underlying uv unwrapper code, intended to be
more extensible. At the moment this has a re-implementation of LSCM.
This has not been activated yet, since it doesn't add anything new.
What's new is the stretch minimize tool from tuhopuu. It works by
selecting some some uv's in the uv editor window, and then pressing
ctrl+V. The uv's on the boundary stay fixed.
More stuff will follow as I port it over & fix it.
sets. To fix it, I got rid of a very ancient hack to enable set grey wire
drawing (setting a global to pretend it's picking select draw).
Now this setting is nicely passed on via functions as argument.
While investigating alternative filters (Mitchell), I found two small
errors in the Gauss code, it clipped wrong and multiplied wrong, causing
settings other than filter size 1.0 to not work properly.
Took the last-minute liberty to add more filter types in Blender too.
Also wrote an extensive log about how sampling & filtering in Blender
works.
http://www.blender3d.org/cms/Samples_and_Filtering.723.0.html
This is a combined effort from Jens, Ton who finished the code here on my machine, and myself putting in the little menu toggle and committing :).
Turn it on and off in the UV/Image window menu UVs -> LSCM Live Transform. It recalculates the LSCM within the transform loop when you're transforming pinned vertices, so it gives realtime feedback - a real time saver! Note: this is much more powerful than proportional edit, since it's properly calculating LSCM using the correct edge angles, etc.
I recorded a quicky demo video here: http://orange.blender.org/wp-content/themes/orange/images/media/lscm_live.mov (quicktime animation codec)
a good revision :)
This now cycles through all number/text buttons in a Panel. At the moment
it skips buttons with tab completion (object names, bones, constraints)
Press SHIFT+TAB to cycle backwards (any modifier will do btw).
Textbuttons now allow a selection too (like any textbutton in other UIs).
By default, on activating a textbutton, the entire button text is selected
when you enter the button. A single arrowkey or LMB click reveils the
cursor then. Here's more user notes:
LMB click: If inside the button, places the text cursor at the clicked
position. If outside the button, confirms/finishes editing
LMB drag: Selects the text between the start and end point of the drag.
Backspace: Deletes selected text, or backspaces a character
Shift Backspace: Deletes all, as before.
Delete: Deletes selected text or forward deletes a character
Shift LeftArrow: Extends the selection left
Shift RightArrow: Extends the selection right
LeftArrow: If there's a selection, move the cursor to the left edge of the
selection, otherwise move the cursor left a character.
RightArrow: If there's a selection, move the cursor to the right edge of
the selection, otherwise move the cursor right a character.
UpArrow/Home: Move the cursor to the beginning of the line
DownArrow/End: Move the cursor to the end of the line
Ctrl Left arrow and Ctrl Right arrow to jump between directory separators
Patch prvovided by Guillermo, code was - afaik - from Rob Haarsma.
This changes the toolbox (space menu) to have the first level aligned
vertically. Works much easier that way, and since the items open either
left or right, it doesn't flip order of the contents for it either.
To allow people to test (and to compare) it's a user menu setting (in
View & Controls, "Plain menus"). I've turned this on by default though,
since I propose to not have it a user setting. User setting can be
removed later.
Fixed two bugs in patch:
- if saved in user settings, first time usage of this toolbox opened in
wrong location
- Button for "plain menus" was writing a short in an int
(causing this new menu not to work for big endian systems)
As a bonus I've added the long wanted hotkey support for opening and
closing sublevels of pulldowns with arrow keys!
I didn't add the commenting out of correcting pulldown menu order, which
is based on location of the originating button in the UI. This uncommenting
didn't solve anything, since button definitions itself can be flipped too.
(Example: the data brose menus in top bar need to be corrected).
I can imagine the order flipping is sometimes annoying, but it still has
reasons to be there;
- the most important / most used items are always closest to the mouse.
(like opening properties panel, or "Add new" for material.
- it follows muscle memory and 'locus of attention' (mouse position).
- menus are configured to open to the top for bottom headers, and to the
bottom for top headers. We can expect the UI is configured consistantly
for headers, so in general the menus will appear consistant as well.
Where menu flipping fails is especially for alphabetic listings, like in
the menu button of fileselect. However, that one should be configured to
open by default to the bottom, so ordering is consistant as well.
If people like to check this themselves; uncomment the lines in the top
of the function uiBlockFlipOrder() in src/interface.c
This commit is based on the patch & cool design work of Matt. It includes
the new Lamp drawing style, and replaces the Object center dots with a
similar styled OpenGL drawn dot.
Important side-note is that removing the old glDrawPixels() for centers or
lamps will not only make Blender faster, but also prevents crashing on a
couple of cheaper 3d cards (as reported for S3 and Intel on-board cards)
Notes:
- The new default only draws Object centers when selected or active. If
you like to see them always, use the View Properties Panel. You can also
save that in the .B.blend
- The size for centers (and lamps) is in the User settings "View & Controls"
- Unselected Lamps, and their offset lines from zero Z, are drawn in a new
Theme color
Changes and additions in Matt's patch:
- Lamps and centers are drawn fixed size, in pixels. Also the 'sun' lamp
draws screen aligned now.
- Center dots now also draw in blue to denote Library linkage or to show
that an Object has been linked to other scenes.
- When objects are empty (no vertices) they will always draw a center dot.
Otherwise these objects would never be selectable anymore!
- Added theme setting for center size, and initialization
- Removed the old redundant code for drawing centers
- Cleanup of drawing routines, made center dots faster
- Started removing calls to glBlendFunc(). Regular alpha drawing should
become standard, and the (very) occasional exception should return this
to default after usage.
doc;
http://www.blender3d.org/cms/Hair_Strand_Rendering.722.0.html
- added width control for strands
- made tangent (anisotropic) render an option
(so you can render strands more solid, like metal/wood)
Also:
- ALT+A anim playback with static particles made cursor flashing
http://www.blender3d.org/cms/New_Particle_options_a.721.0.html
There's no doubt this patch had a lot of good ideas for features, and I
want to compliment Janne again for getting it all to work even!
A more careful review of the features and code did show however quite some
flaws and bugs... partially because the current particle code was very much
polluted already, but also because of the implementation lacked quality.
However, the patch was too good to reject, so I've fixed and recoded the
parts that needed it most. :)
Here's a list of of most evident changes in the patch;
- Guides support recoded. It was implemented as a true 'force field',
checking all Curve path points for each particle to find the closest. Was
just far too slow, and didn't support looping or bends well.
The new implementation is fast (real time) and treats the paths as actual
trajectory for the particle.
- Guides didn't integrate in the physics/speed system either, was added as
exception. Now it's integrated and can be combined with other velocities
or forces
- Use of Fields was slow code in general, made it use a Cache instead.
- The "even" distribution didn't work for Jittered sample patterns.
- The "even" or "vertexgroup" code in the main loops were badly constructed,
giving too much cpu for a simple task. Instead of going over all faces
many times, it now only does it once.
Same part of the code used a lot of temporal unneeded mallocs.
- Use of DerivedMesh or Mesh was confused, didn't work for Subsurfs in all
cases
- Support for vertex groups was slow, evaluating vertexgroups too often
- When a vertexgroup failed to read, it was wrongly handled (set to zero).
VertexGroup support now is with a name.
- Split up the too huge build_particle() call in some parts (moving new code)
- The "texture re-timing" option failed for moving Objects. The old code used
the convention that particles were added with increasing time steps.
Solved by creating a object Matrix Cache.
Also: the texture coordinates had to be corrected to become "OrCo".
- The "Disp" option only was used to draw less particles. Changed it to
actually calculate fewer particles for 3D viewing, but render all still.
So now it can be used to keep editing realtime.
Removed;
The "speed threshold" and "Tight" features were not copied over. This
resembled too much to feature overkill. Needs re-evaluation.
Also the "Deform" option was not added, I prefer to first check if the
current particle system really works for the Modifier system.
And:
- Added integration for particle force fields in the dependency graph
- Added TAB completion for vertexgroup names!
- Made the 'wait cursor' only appear when particles take more than 0.5 sec
- The particle jitter table order now is randomized too, giving much
nicer emitting of particles in large faces.
- Vortex field didn't correctly use speed/forces, so it didn't work for
collisions.
- Triangle distribution was wrong
- Removed ancient bug that applied in a *very* weird way speed and forces.
(location changes got the half force, speed the full...???)
So much... might have forgotten some notes! :)
DXF: when an error message occurs during read, the main call returned
without clearing the used global vars... causing crash on calling again.
ALso: added warning when trying to assign a taper or bevel using Object
itself. (report from opengl tracker :)
He noted that static particles don't work with force fields yet, and
added a fix for it. This however didn't work for the depgraph yet, and
didn't correct the static particle's local space to world coordinates for
the fields. Nevertheless, while reviewing this small patch I thought it
would be fun to add now.
So: static particles now update realtime on forcefield relations. Warning
for potential slowdowns! Also note that work on the real particle patch
still has to be done... something I really will do, but in time. To get
particles correctly integrated in the animation system, quite some new
development has to be done still.
1) Stride Bone
For walkcycles, you could already set an NLA strip to cycle over a path
based on a preset distance value. This cycling happens based on a linear
interpolation, with constant speed.
Not all cycles have a constant speed however, like hopping or jumping.
To ensure a perfect slipping-less foot contact, you now can set a Bone
in an Armature to define the stride. This "Stride Bone" then becomes a
sort-of ruler, a conveyor belt, on which the character walks. When using
the NLA "Use Path" option, it then tries to keep the Stride Bone entirely
motionless on the path, by cancelling out its motion (for the entire
Armature). This means that the animation keys for a Stride Bone have to be
exactly negative of the desired path. Only, at choice, the X,Y or Z Ipo
curve is used for this stride.
Examples:
http://www.blender.org/bf/0001_0040.avi
The top armature shows the actual Action, the bottom armature has been
parented to a Path, using the Stride Bone feature.
http://www.blender.org/bf/0001_0080.avi
Here the Stride Bone has a number of children, creating a ruler to be
used as reference while animating.
Test .blend:
http://www.blender.org/bf/motionblender1.blend
Notes:
- Note that action keys for Bones work local, based on the Bone's
orientation as set in EditMode. Therefore, an Y translation always
goes in the Bone's direction.
- To be able to get a "solvable" stride, the animation curve has
to be inverse evaluated, using a Newton Raphson root solver. That
means you can only create stride curves that keep moving forward, and
cannot return halfway.
- Set the Stride Bone in the Editing Buttons, Bone Panel. You can set
change the name or set the axis in the NLA Window, Strip Properties Panel.
- Files in this commit will move to the blender.org release section.
2) Armature Ghosting
In EditButtons, Armature Panel, you can set an armature to draw ghosts.
The number value denotes the amount of frames that have to be drawn extra
(for the active action!) around the current frame.
Ghosts only evaluate its own Pose, executing it's Actions, Constraints and
IK. No external dependencies are re-evaluated for it.
3) NLA/Action time control
If you click in the NLA window on the action (linked to Object), it makes
sure the Timing as drawn in the Action editor is not corrected for NLA.
If you also set the Object to "Action", this timing will be executed on the
Object as well (not NLA time).
(It's a bit confusing... will make a good doc & maybe review UI!)
You now can set, in NKEY Transform Properties Panel, per XYZ rot/loc/size,
a protection for Transform tools to not change these values anymore.
This now works for Objects or for Bones in PoseMode.
Usage is especially for character animation, to give Bones in a Pose
defaults for rotation axes, so you don't have to worry about the correct
limitations (or setup complex IK limits).
Of course, this feature doesn't influence the animation system.
As an extra also the Transform Widgets then draw less handles. Note this
is based on the actual locked value, and depends still on Manipulator
orientation whether it can be used really.
Implementation warning: I had to remove the 'return' in the middle of the
editobject.c compatible_eul() call. It now makes nice compatible eulers
when they're simple (single axis rotations). Unfortunately there was no
note in the code why it was ever removed...
ALso: fix for crash in using Crease Transform and Mirror modifier.
- Action Editor: hotkeys V and H for handles were invisible, added menus
- NLA strips: when current frame is exactly on the strip end, it didn't
include that action... needs a rounding correction for it.
- Action/NLA: deleting keys in Action, which results in only 1 key left,
resulted in zero sized strip length. Now the strips are defaulted to be
1 frame in size minimal.
- NLA editor: ALT+C "Convert to strip" didn't increment Action user count
- 3D Window: CTRL+P make parent to Bone still gave the insane menu with all
bone names. With unified PoseMode select it can just parent to the
active Bone. Note; this now requires the Armature to be in PoseMode to
work.
- Rotation Constraint; the new options to only map to X,Y,Z rotation, did
set the not mapped rotation axes to zero. These should remain unchanged.
- AutoKey optionn for Actions; should not insert action keys on ESC
And added a fix myself:
- When SHIFT+selecting a Bone in PoseMode, and the Armature was not selected
or active yet, it doesn't extend-select/deselect the Bone anymore.
This case is only useful when you try to add IK or Constraint, so the
shift+selection should only activate the clicked Bone.
It works like for moving Object Ipos to the Action, press the Action icon
in the header of the IpoWindow, to the left of the mode selection menu.
It then creates an Action (if not existed) and moves the Shape Ipo to the
Action, using custom channel "Shape".
Main code change was that evaluating Ipo Curves for Relative Shapes had to
be recoded, but that's pretty minor and even much cleaner. (added "curval"
in the KeyBlock struct).
That this feature can work is thanks to the full modifier/derivedmesh
recode Daniel did, can't give him enough credits! :)
Also; small fixes in Outliner, for clicking on the Ipo icon (sets the Ipo
window to show that Ipo).
