Best is to forget yesterday's commit and old docs. New docs are underway...
Here's how IK works now;
- IK chains can go all the way to the furthest parent Bone. Disregarding
the old option "IK to Parent" and disgregarding whether a Bone has an
offset to its parent (offsets now work for IK, so you can also make
T-bones).
- The old "IK to Parent" option now only does what it should do: it denotes
whether a Bone is directly connected to a Parent Bone, or not.
In the UI and in code this option is now called "Connected".
- You can also define yourself which Bone will become the "Root" for an IK
chain. This can be any Parent of the IK tip (where the IK constraint is).
By default it goes all the way, unless you set a value for the new IK
Constraint Panel option "Chain Lenght".
- "Tree IK" now is detected automatic, when multiple IK Roots are on the
same Bone, and when there's a branched structure.
Multiple IK's on a single chain (no branches) is still executed as usual,
doing the IK's sequentially.
- Note: Branched structures, with _partial_ overlapping IK chains, that don't
share the same Root will possibly disconnect branches.
- When you select a Bone with IK, it now draws a yellow dashed line to its
Root.
- The IK options "Location Weight" and "Rotation Weight" are relative,
in case there's a Tree IK structure. These weights cannot be set to
zero. To animate or disable IK Targets, use the "Influence" slider.
- This new IK is backwards and upwards compatible for Blender files.
Of course, the new features won't show in older Blender binaries! :)
Other changes & notes;
- In PoseMode, the Constraint Panel now also draws in Editing Buttons, next
to the Bones Panel.
- IK Constraint Panel was redesigned... it's still a bit squished
- Buttons "No X DoF" is now called "Lock X". This to follow convention to
name options positive.
- Added Undo push for Make/Clear Parent in Editmode Armature
- Use CTRL+P "Make Parent" on a single selected Bone to make it become
connected (ALT+P had already "Disconnect").
On todo next; Visualizing & review of Bone DoF limits and stiffness
- Removed old convention that only allowed one "IK" connection for Bones
in a joint. Was highly frustrating for editing trees or branches.
In a next commit, there will be a different method to define IK target
and IK root, so this option actually will become "Connect Bone" or so.
- the IK group name is gone, now is just an option "Tree IK". When IK
chains share a root they'll form a tree.
Todo is preventing conflicts here (will be for editor to define IK Root)
- Adding new IK constraint with CTRL+I activates Constraint
Full logs for changes will be added later. Worth to note now;
- support for 'tree IK' added
- DOF and stiffness per IK bone (in pose only)
- Orientation IK support (target rotates -> chain follows)
This is still WIP. Buttons might change, button ranges will change, and the
way 'IK groups' are working will change. You can play with this, but don't
expect saved files to work still by end of this day! :)
Main target was cleanup of editconstraint.c and removal of the ugly
ob->activecon (active constraint channel), which was set by the "Show"
button in the Constraint Panel.
Better is to introduce an 'Active Constraint' itself, which stores in
the Constraint itself. By using this setting, and by checking the active
Bone, the UI can update reliably now. This only shows now in IpoWindow
btw (for constraint ipos). The active Constraint is drawn in the Buttons
with a slightly brighter backdrop. Any action in that Panel selects a
constraint now (even click in backdrop).
So now we have pose channels & constraint channels nicely behaving. Now the
darn Action channels... :)
Further in this commit:
- interface.c: Button ROUNDBOX now does button callback too.
Button NUMSLI didn't do the callback on a click only
- Cleaned up include files in yafray, got annoyed it compiled over all the
time.
- removed unused variables from Constraint struct
deformation options of Armatures, causing bones not to deform.
It was caused by using the old "boneclass" variable and SKINNABLE.
Apparently the boneclass can have any value in older files. Will be killed.
Please note; in files created after last sunday, with setting "No deform" on a
Bone, that setting has to be done again.
- convert weightpaint/vertexpaint to draw using drawMappedFaces, slightly
hacky because during weightpaint mcol's get overridden in order to
have them propogate through modifiers. should work fine.
- add NULL check in shaded draw, prevents crash w/ dupliframe
including implementation. hope it works, and doesn't break to much.
it bakes physics objects transform into ipo, every frame of the running gameengine.
When you disable and run the game again, it clears the ipo's again. just for physics objects at the moment.
(perhaps some better UI in the future?)
- Armature deform options "Envelope" and "Vertexgroup" didn't combine. One
Vertexgroup added disabled all Envelopes
- "Clear" option in WPaint Panel now sends refresh to deform
- Same for Undo in Wpaint
- revert to drawLooseEdges instead of general drawEdgesFlag
- ditched TFace edge flags, done dynamically now which also
means don't need to recalc surface on flag changes
- added BLI_edgehash, guess what it does
Armature Panel
- "Vertex Groups"
- "Envelope"
Bones Panel
- "Mult"
The logic works as follows;
- Set "Vertex Groups" will enable vertex group based deform (default)
- Set "Envelope" will enable Bone Envelopes to deform
- Set both will apply Envelope deform on vertices without VertexGroups
- Set the per-Bone "Mult" option to have Envelopes work on top of a
VertexGroup
- The per-Bone "Deform" option (was called "Skinnable") will dis/enable
the Bone to deform for all situations.
The old convention was that, without any vertex groups, the Bones deformed
with bone-distances. I can't patch that... so you have to enable it by
hand in older files. Not too bad, since this option was unusable before
anyway. :)
This works pretty nice for better control over the curvature of any bone
deform. No need to give Bones (vgroups) large influence, just add a coupleof B-bone segments.
Two notes;
- The Bone property "Segments" defines if a deform happens as a 'B-bone'.
The drawtype B-bone is just for display in 3d window.
- A B-bone also deforms (bends) in Rest-position, if there's a joint that
creates a curved Bone. Therefore, best results you get by creating a
rest-position with straight joints. Or, if you prefer a slightly bended
restposition (for a spine or so), make sure the Mesh model is *not*
curved, the B-bone will do this for you.
Also added: proper events on changing buttons for Bones, like "Segm" or
"Dist" etc.
to get rid of faces with MFace.v3==0
- change all Mesh's to have ->medge now. This is forced by make_edges
on readfile, and in the various exotic important routines, and on
conversion back in python.
- make python NMesh structure always have medges now (needs testing)
- with above two changes it is guarenteed that mf->v3 is never ==0
in main blender code (i.e., all MFace's are actually triangles
or quads) and so I went through and removed all the historic tests
to deal with MFace.v3==0. Equals lots of deleting, I am in heaven!
- removed MEdge edcode flag, no longer needed
- added experimental replacement for edge flag system
Still are some inconsistencies in FACESELECT mode edge drawing to
be ironed out.
NOTE: This commit adds an experimental edge flag calc system, based
on 10-seconds-of-thought algorithm by yours truly. Would appreciate
feedback on how this system works, esp compared to old one and esp
on complex or interesting models.
To Use: New system is enabled by setting G.rt to a value between
1 and 1000 (Value of 0 uses old system). Value 1000 is reserved for
"auto" edge, which is more or less identical to old system but also
makes sure that at least 10% of edges are drawn (solves errors for
super subdivided meshes). Values between 1 and 999 act as percent
(out of 1000) of edges that should be drawn, starting with "most
interesting" edges first. Please try it and comment!
- added user settable defaultEdgeData (for auto edge creation
in CCGSubSurf)
- bug fix, possible crash on meshes with loose edges but
in mface not in medge
- missed file in last commit, for proper updating in image
window
mapping (instead of Edit{Vert,Edge,Face} pointers)
- dropped convertToDispListMeshMapped (whew, glad of it too)
- added DerivedMesh drawMappedFaces function
- dropped EM suffix for DerivedMesh functions, it was neither
particularly correct nor descriptive
- converted test_index_mface to test_index_face that also corrects
MCol and TFace. Good thing we had three versions of this routine,
you never know when one might burn down.
- removed flipnorm_mesh, not used anymore (and was incorrect to
boot)
- Getting face select to work with modifiers turned out to be much
more complicated than expected. Reworked mapping architecture for
modifiers - basically elements in a DispListMesh are now required
to be stored in an order that corresponds exactly to original
ordering. MVert/MEdge/MFace all have a new flag ME_XXX_STEPINDEX
that is set on each element that is set on the first derived element
of each original element. I can't say the code to follow these
requirements for subsurf is particularly transparent, but on the
upside it is a reasonably consistent and simple system that is memory
efficient and allows keeping the DispListMesh structure.
- rewrote mirror modifier to be simpler/conform to new requirements
for mapped DispListMesh structure. This also means that mirror interacts
much better with incremental subsurf calculation (it used to recalc
one entire side on any topology change, now it generally avoids that).
- added EM_{init,free}_index_arrays and EM_get_{vert,edge,face}_for_index
functions to handle mapping indices back into appropriate EditMesh
structures.
- bug fix, make edges didn't recalc object data
- bug fix, initial image assignment to TFace's didn't recalc object data
- new feature, added circle select support for FACESELECT
- bug fix, creating new faces in editmode duplicated the TFACE active
flag - but there should only be one active tface
- bug fix, possible crash when deleting all faces in faceselect mode
on mesh with tfaces...
Still todo: TFace edge drawing is still not always correct in face
mode, in particular with a mirror modifier when mesh has edges (and
no preceeding subsurf). Have not yet decided how to deal with this.
Best solution is probably to do switch to meshes all having MEdge's,
in which case I can get rid of TFace edge flags (and need to recalc
modifiers on tface selection change).
- The "Skinnable" option for Bones now is taken into account for the
Envelope drawmode. If not Skinnable, it also doesn't draw the soft
deform area. Maybe bone should be hidden... dunno yet.
- Use CTRL+LMB in weightpaint mode to sample the weight in a mesh.
Note; it returns the weight of the closest visible vertex, not of a
Blended result.
- NKey Panel for Mesh edit now shows a menu with the VertexGroup name(s)
of a selected Vertex, plus the Weight.
Fix:
- while scaling Bone points in editmode (Envelope drawtype), the Bone
root scale was not copied from (or to) the parent tip. This was not
visible (is not drawn) but deform did use it... causing weird errors.
For those who saw this error today: just go into editmode, select all
Bones, press Skey, enter. That fixes it :)
For defining the deformation distances of Bones, three values are being
used now. The bone tip and root radius define the bone-shape itself and the
"dist" defines the soft area around it. A full (user) doc is in CMS here;
http://www.blender3d.org/cms/Armature_Envelopes.647.0.html
Note: todo still is allowing both Vertex Deform Groups and these Envelopes
together (and or per Bone).
Also part of this commit is:
- New: Hiding bones in EditMode. This is a separate 'hide flag', so you can
keep the PoseMode hidden Bones separate from EditMode.
(In the future we should do some kind of bone-grouping or so)
- While transform(), the hotkeys G,R,S only switch mode when the previous
mode was compatible. Caused conflicts with Crease/BoneDist/etc.
- Deleting the last VertexGroup now also deletes the entire Mesh 'dvert'
data. Sounds logical, but remember that VertexGroups are partial on a
Mesh, partial on Object. Weird design decision though...
Anyhoo, at this moment the only way to have Bone Envelopes deform, is
by deleting all VertexGroups!
- In PoseMode, the hotkey ALT+S now does both B-Bone size or Envelope,
depending draw type.
- In EditMode, Extrude now also works when only Root points were selected.
- Weight editing is also symmetrical btw, with the "X-axis Mirror" option
set.
- removed DerivedMesh.drawLooseEdges and replaced with much more
general drawEdgesFlag function that draws based edge flags.
- switch DerivedMesh.drawFacesTex to give user control over which
faces are drawn
- added object_uvs_changed and object_tface_flags_changed functions
to do object recalc flag flush/redraw queueing and added calls
in appropriate places
- added various edge flags to mark TFace information. This is used
by the drawEdgesFlag routine and was the best way I could come
up with to deal with drawing TFace information from modifier stack.
Unfortunate side effects are (1) uses a lot of MEdge flags (although
not needed in file so thats fine) and (2) requires recalculation
of modifier stack on UV selection changes. #2 is disappointing
but I could not find a better solution.
- update UV mesh shadow drawing to use modifier result. At the moment
just uses the final result but probably should be integrated with
the editmode cage option.
- convert draw_tfaces3D to use drawEdgesFlag routine which cleaned
up the code quite a bit.
- convert draw_tface_mesh to draw using result of modifier stack.
Same comment about which result actually gets draw in FACESELECT
mode as for UV editor shadow drawing applies.
There is a still a bug in that selection is using the wrong
mesh to draw.
way. Requested for low-poly modeling.
- fix: on exit editmode, the code always created a mesh->dvert block...
silly, this made other code confused which decided whether to use
dverts (vertex groups) or not.
- removed obsolete call from armature.c. Also fixed name of function there,
preparation work for nicer support in Blender for "deform envelopes"
make softbodies collide with objects patented to armatures (bones), lattices .. )
Softbody deflectors always use the new modifier stack. (thanks ZR)
Softbody deflector code checks for identity of colliding objects so,
there is no need to prohibit softbodies to be a deflector.
So now you can put some soft balls in a box and see them bounce.
see : http://wund.privat.t-online.de/bt/sb_sb_coll.blend
A deflector cube parented to SB lattice:
http://wund.privat.t-online.de/bt/sb_lattice.blend
BM
- Option is in EditButtons, Armature panel.
- Currently only local X-axis mirror (seems to be default anyway)
- Transform then applies changes to the mirrored-name bone as well.
- Extrude: also does the counterpart Bone
- New: SHIFT+E extrude: extrudes 2 mirrored Bones out of a normal Bone.
(creating names by appening _L and _R)
Or in short: you can now model a full rig without any manual naming!
Of course the names are not too nice... a couple of ideas to explore;
- rename a mirrored bone renames counterpart too
- allow in weightpaint mode to select Bones
- and of course mirrored edit in PoseMode (if that's useful...)
Important note: I tweaked the naming convention a bit; names like
Bone_L.005 and Bone_R.005 are considered counterparts. However, if
you use the "Flip names" option, the number extension is still
truncated.
BTW: Commits in Zr's code are fixes for gcc warnings. :)
- new feature, twiddled with lattice resizing to try to maintain
existing vertex changes... much nicer than just resetting the
lattice if you decide you need more detail in the lattice.
- modifiers work with lattices now. yes, that does mean you
can make a chain of lattices effecting each other 8 miles
long.
- some cleanup of softbody code, was rather splintered and call
path was twisted and confusing. reworked main object step
routine to do things in a more obvious and consistent manner
and without duplicate code
- added ob->softflag OB_SB_RESET instead of sbObjectReset
call
- modifier changes reset softbody now
- moved curve_getVertexCos/curve_applyVertexCos into curve.c
- update curve modifier eval to work with virtual modifiers
- update modifier apply to work with curves/surfs
- update make parent to also recalc object data
NOTE: Although you can turn SB on for curve/font objects at the
moment it doesn't really work because they call deform in
multiple steps and this confuses SB. Not sure how to deal with
atm.
with "loose" edges (edges without a face) and drawing in
solid mode. they would either not draw, or draw with a nasty
selection outline. Added a ME_LOOSEEDGE flag to mark such
edges in displists/mesh and editmode sets it.
- changed DerivedMesh drawEdges to take an argument whether
it should draw loose edges or not
- removed {lattice,curve}_modifier functions
- changed render code to use displist for curve rendering
instead of making its own. required adding a bevelSplitFlag
field to DispList. I also fixed the bevel face splitting
which did not work correctly in many situations.
- changed so all curve data creation happens in makeDispListCurveTypes,
includes making bevel list and filling polys
- changed render code to use displist for surface rendering
- removed Curve.orco variable, built as needed now
- removed stupid BLI_setScanFill* functions... why use a function
argument when you can use a global and two functions! Why indeed.
(this fixed crash when reloading a file with filled curves and
toggling editmode)
- bug fix, setting curve width!=1 disabled simple bevel for no
apparent reason
- cleaned up lots and lots of curve/displist code (fun example:
"if(dl->type==DL_INDEX3 || dl->type==DL_INDEX3)"). Hmmm!
- switched almost all lattice calls to go through lattice_deform_verts,
only exception left is particles
- added DBG_show_shared_render_faces function in render, just
helps to visualize which verts are shared while testing (no
user interface).
- renamed some curve bevel buttons and rewrote tooltips to be
more obvious
- made CU_FAST work without dupfontbase hack
Also by the way I wrote down some notes on how curve code
works, nothing spiffy but it is at:
http://wiki.blender.org/bin/view.pl/Blenderdev/CurveNotes
really work at all. Fortunately no one actually *USES* nurbs so
no one noticed. This is bug from NaN days (strubi, I am looking at
you here) which I guess says a lot (or a little) about NURBS usage.
And as usual, the correct code is shorter.
- added do_version copy of ME_OPT_EDGES flag
- added ME_EDGERENDER flag, barely changes things atm except makes
sure plain meshes with FasterDraw/etc set still render all edges.
The edge drawing system needs a bit of a revamping - it is a cool
feature but could use several improvements:
(1) The algorithm could be better in choosing the best edges to
draw.
(2) The drawflags should interact well with modifiers. It is wierd
to have a large grid with a deformer that draws no edges because
flags are only calculated based on base mesh.
(3) Drawflags should not be destroyed by editmode. Better design
would be a "Draw % of edges" button.
Of course, could also be the feature is not worth it and we
should just drop. Feel free to comment if you have an opinion.
