- edges now sample on three locationsm gives more hits
- own version of glPolygonOffset remains cumbersome... but for select
now the selection routine gets more offset than draw.
- first attempt to clean drawobject.c and displists
- generic call for draw object in backbuf for select purposes, cleans up
a lot in the other calls.
- also to verify if we can (in future) use this for vertex/edge/face
select, but the whole drawobject code works against me... this is
for another refactory (incl. displist) and out of the focus for now
- subsurf.c: now creates new faces in order of original. Not used yet, but is
handy to recover the original order for selection/paint purposes.
- vertex hidden, always means edge is hidden too
- edge hidden, always means face is hidden too
- face hidden, only means face hides
This means, that in face mode you can hide a face, whilst in edge mode
the edges will still display.
Please note, that when you have no edges saved in a Mesh, it also doesnt
store the hide flags for it, causing in/out editmode too reset hidden
edges.
- Zbuffer clipped selection
Based on same algos as for drawing (blender polygon offset) vertices, edges
and faces now are clipped for draw and selection when Zbuffer is used.
Note that it works for endpoint vertices of edges, and for facecenters.
Also works for border and circle-select
- Optimal draw subsurfs
This now draws optimal with faces and edges selected/unselected, hiding the
original 'cage' (mesh) completely.
TODO: edge select, which still uses original (invisible) edge.
http://www.blender3d.org/cms/Mesh_editing_rewrite.425.0.html
- circle-select now works
- delete options for edge/face select work as to be expected.
should check on a better set of choices in menu though
- assign material / select material options work for new modes
- shift+f fill didnt leave proper select flags...
- border select on face-gones (fgons) works
- 'draw normals' and fgons works now
Just select a bunch of faces (selection should be valid flat poly) and
press FKEY. Works in fact as selection-group optimizing. Nice in solid
drawmode!
Further some small additional fixes in the whole debugging process.
Found old error in loopselect for triangles, subdivision code, and
selection still.
NOTE: subdivide still works on vertex level only.
- hide flags now save correctly in mesh, to restore after going in/out
editmode
- after an extrude, faces/edges could have wrong select flags
(only in vertex select mode)
- new rule for addfacelist(); this now copies edges too, if an example
is provided. That prevents a lot of awkward code, still testing if it
goes as desired though...
The changelog is very long... it's on the web too:
http://www.blender3d.org/cms/Mesh_editing_rewrite.425.0.html
EditMesh refactor notes (user)
**** New selection modes
When entering Edit Mode for a Mesh, you now have the choice for three selection modes. These are shown as icons in the 3D header (hotkey is being searched for!).
- Vertex Select
Select vertices as usual, fully compatible with how previous version work
- Edge Select
Vertices are not drawn anymore, and selections happen by default on the edges. It is a true edge select, meaning that you can select three out of four edges in a face, without automatic having the 4th edge selected.
- Face Select
Instead of vertices, now selection 'points' are drawn in the face centers. Selected faces also get a colored outline, like for edges. This also is true face select, for each face individual regardless selection status of its vertices or edges.
While holding SHIFT, and press a selection mode, you can also combine the above choices. Now selection becomes mixed, and will behave as expected.
For example; in Edge+Face select mode, selecting the 4 edges of a face will select the face too.
The selection modes and optional drawing modes (like transparant faces, normals, or solid drawing) all work together. All of Blender's mesh editing tools now react to the correct selection mode as well.
Most noticeable it's in:
**** Extrude
Extruding in Edge or Face Select mode allows much more precise control over what's extruded and what should be excluded. Try for example a checker pattern selection, and extrude it.
New is the fixed translation when faces are extruded. This always follows the (averaged) face normal(s) of the old face(s), enabling much easier working in 3D views . A single 'G' (Grab) or 'R' (Rotate) or 'S' (Scale) will change transform modus as usual.
**** Other things to note
- Hiding edges/faces will also behave different based on Select Mode.
- while editing, normals of faces are updated always now
- Border select (BKEY) has 2 different rules for edges; when one edge is fully inside of the border, it will only select edges that are fully inside. Otherwise it selects each edge intersecting with the border.
- in face mode, adding vertices, edges or a circle is invisible...
- "Add monkey" now works as a normal primitive (rotated and on 3d cursor)
- Mesh undo was fully recoded, hopefully solving issues now with Vertex Keys and Groups
- Going in and out of editmode was fully recoded. Especially on larger models you'll notice substantial speed gain.
**** Todo
Add 'FaceSelect mode' functionality in EditMode, including zbuffered selection, display and editing of UV texture.
EditMesh refactor notes (coder)
**** Usage of flags in general
The "->f" flags are reserved for the editmesh.c and editmesh_lib.c core functions. Actually only selection status is there now.
The "->f1" and "->f2" flags are free to use. They're available in vertex/edge/face structs. Since they're free, check carefully when calling other functions that use these flags... for example extrude() or subdivide() use them.
**** Selection flags
EditVert: eve->f & SELECT
EditEdge: eed->f & SELECT
EditFace: efa->f & SELECT
- Selection is only possible when not-hidden!
- Selection flags are always up-to-date, BUT:
if selection mode >= SELECT_EDGE vertex selection flags can be incorrect
if selection mode == SELECT_FACE vertex/edge selection flags can be incorrect
This because of shared vertices or edges.
- use for selecting vertices:
eve->f &= SELECT
- use for selecting edges always:
void EM_select_edge(eed, 1) // 1 = select, 0 = deselect
- use for selecting faces always:
void EM_select_face(efa, 1) // 1 = select, 0 = deselect
- To set the 'f' flags in all of the data:
void EM_set_flag_all(int flag);
void EM_clear_flag_all(int flag);
- the old faceselectedOR() and faceselectedAND() are still there, but only
to be used for evaluating its vertices
**** Code hints for handling selection
If the selectmode is 'face'; vertex or edge selections need to be flushed upward. Same is true for 'edge' selection mode. This means that you'll have to keep track of all selections while coding... selecting the four vertices in a face doesn't automatically select the face anymore.
However, by using the above calls, at least selections flush downward (to vertex level). You then can call:
void EM_selectmode_flush(void);
Which flushes selections back upward, based on the selectmode setting. This function does the following:
- if selectmode 'vertex': select edges/faces based on its selected vertices
- if selectmode 'edge': select faces based its selected edges
This works fine in nice controlled situations.
However, only changing the vertex selections then still doesn't select a face in face mode! If you really can't avoid only working with vertex selections, you can use this call:
void EM_select_flush(void);
Now selection is flushed upward regardless current selectmode. That can be destructive for special cases however, like checkerboard selected faces. So use this only when you know everything else was deselected (or deselect it). Example: adding primitives.
**** Hide flags
EditVert: eve->h
EditEdge: eed->h
EditFace: efa->h
- all hide flags are always up-to-date
- hidden vertices/edges/faces are always deselected. so when you operate on selection only, there's no need to check for hide flag.
**** Unified undo for editmode
New file: editmode_undo.h
A pretty nice function pointer handler style undo. Just code three functions, and your undo will fly! The c file has a good reference.
Also note that the old undo system has been replaced. It currently uses minimal dependencies on Meshes themselves (no abuse of going in/out editmode), and is restricted nicely to editmode functions.
**** Going in/out editmode
As speedup now all vertices/faces/edges are allocated in three big chunks. In vertices/faces/edges now tags are set to denote such data cannot be freed.
ALso the hashtable (lookup) for edges uses no mallocs at all anymore, but is part of the EditEdge itself.
logical parts, and include files altered to denote internal and external
functions.
include/editmesh.h: internal calls for editmesh_xxx.c files
include/BIF_editmesh.h: external calls for these files
src/editmesh.c: basic alloc/lists and in/out editmode, undo, separate
src/editmesh_lib.c: basic utility calls for all editmesh_xxx.c (no UI)
src/editmesh_add.c: add prim, add duplicate, add vertex/edge/face (UI)
src/editmesh_mods.c: selecting, transforming (UI)
src/editmesh_loop.c: loop tools like knife, loop select, loop subdiv (UI)
src/editmesh_tools.c: other tools (extrude, spin, etc) (UI)
And a new file:
src/meshtools.c: tools for Mesh outside of editmode (normals, draw flags)
- EditVlak -> EditFace
- variables called 'evl' -> 'efa'
- functions with 'vlak' in it now have 'face'
Just thought was nice starter for editmesh recode...
detected as others, LR_COMMANDKEY
Unline previous commit, Apple key doesnt map to control anymore, but is
handled separate where needed. Now only for undo (Apple-Z)
- Made unified API for undo calls, to be found in space.c
BIF_undo_push(char *str)
BIF_undo(void)
BIF_redo(void)
These calls will do all undo levels, including editmode and vpaint.
The transition is work in progress, because mesh undo needs recode.
- New global hotkey CTR+Z for undo
Note: 'shaded draw mode' still is SHIFT+Z, the old CTRL+Z was to recalc
the lighting in shaded mode, which already became much more interactive,
like during/after any transform().
Recalc hotkey now is SHIFT+ALT+Z
CTRL+<any modifier>+Z is redo.
- For OSX users; the Apple-key ("Command") now maps to CTRL as well. This
disables the one-mouse-button hack for rightmouse btw, will be fixed in
next commit. At least we can use Apple-Z :)
- Old Ukey for undo is still there, as a training period... my preference is
to restore Ukey to "reload original data" as in past, and only use new
CTRL+Z for undo.
- Added undo_push() for all of editobject.c and editview.c. Meaning we can
start using/testing global undo in the 3d window. Please dont comment on
missing parts for now, first I want someone to volunteer to tackle all of
that.
- Since the global undo has a full 'file' in memory, it can save extremely
fast on exit to <temp dir>/quit.blend. That's default now when global undo
is enabled. It prints "Saved session recovery to ..." in console then.
- In file menu, a new option is added "Recover Last Session". Note that this
reads the undo-save, which is without UI.
- With such nice new features we then can also kill the disputed
Cancel/Confirm menu on Q-KEY.
- Added fix which initializes seam/normal theme color on saved themes.
They showed black now.... (Note: that's in usiblender.c!)
1) Curve deform
http://www.blender3d.org/cms/Curve_Deform.392.0.html
Works simple as expected, but keep track of the rotation axis
in F7 buttons (Track X Y Z)
Only Mesh deform supported now.
Code changes:
- centralized deformation calls in curve_modifiers() mesh_modifiers()
etcetera. Here also other effects can be added like wave. Now the
evaluation order is fixed, but should become optional. It also doesnt
use the Displist anymore as deform-input. That latter part is unfinished
yet.
This code also is used for Hooks and will be needed for softbody
- made convention stricter that displists are being checked on in
drawobject(), this to prevent routines to make new displists recursively
(like armature does). Now a freedisplist() is sufficient to signal that
a new displaylist should be made.
2) Object Hooks
http://www.blender3d.org/cms/Object_Hooks.391.0.html
Support for Hooks is added to Mesh, Lattice, Curve and Surface objects.
For Armatures this would require some more work & research.
Main goal for this feature is to provide quick & simple access to the
underlying geometry in Objects on Object level, supporting hierarchies and
Ipos etc.
The algorithm used before to split up the mesh before unwrapping was based on
vertices, resulting in leakage in some setups. Now it's edge based, allowing to
select only two edges of a triangle, and not automatically selecting the third.
Read today's meeting minutes for a description.
Bjornmose: We'll need some example and screenshots for the dev pages of blender3d.org. If you can do some, neat, if not, I'll do them.
Matt, Emilie and Chris: Please review UI addition. Pixel alignement and all that fun stuff has not be overly looked for (though I did some cleaning by adding alignment blocks).
separate it...
1) Curve/Surface editmode undo
Uses same syntax as mesh undo, so simple to integrate. Edit-curve data is
also quite simpler, so no need for any hack at all.
It re-uses the undo system from next point, which is nice short & clean
local code
2) Framework for global undo
The undo calls themselves are commented out. In a next commit I want to
enable it for a couple of main features, for further feedback.
The speed goes surprisingly well, especially with this new version that
'pushes' undo after a command, ensuring interactivity isnt frustrated
3) framework for texture based icons in Blender
Not activated code, but tested here. Part of 2.3 UI project.
btw: Johnny Matthews will assist in (and complete) the undo project
Moved get_con_target from editconstraint to constraint kernel file and renamed to get_constraint_target
Make scene.c use constraint functions from kernel instead of doing the switch itself (regrouping specific constraint code in one file).
Add LockTrack as an option in the Make Track menu (Ctrl-T)
Adding fun for vortex forces in 3D window, the representation now match the orientation and direction of the force (this is code will need optimisation). I'll probably be slapped for mixing two things in one commit but some function calls needed to be fixed for the new spelling and since this is really isolated code I didn't feel like wasting time getting a fresh copy, doing the changes and then readded this after commiting.
Fixed some warning regarding implicit casts and constants (this last one is a MSVCism where you need to explicitely tell the compiler to use floats with an f. AFAIK, it doesn't affect/bother other compilers).
Removed a useless commented piece of code in readfile (there was an uncommented copy a couple of lines before)
Plus: moved particle interaction and effect buttons back to a single
Object context. The proposed solution (sub context) has workflow issues,
(adds another click (no hotkey) to view settings)
whilst almost all Object buttons nicely fit in single view still.
This was on todo since first particle commit, actually the idea was to
move particle related issues to a special sub-context, but leave the
effects themselves in the Object main menu. Splitting off Particles from
the Effect system isn't in the scope of what is feasible now.
Also note; the current panel 'particle interaction' actually should be
a generic 'forces and collision' panel, since it's also relevant for
soft body feature (WIP)... that can be changed later.
- now more than 31 channels possible for ipos
- added lotsa new channels all over
- Texture block has ipo now too
- recoded getname_ei functions
(Will ask nathan to give release log info when he's back!)
- while editing creases (SHIFT+E) it works like scaling now (towards or
away from center selection).
- ESC while crease edit now works.
(note; doesnt fit in Trans structs...)
- button 'draw edges' and 'draw creases' now exclude each other
* Aligned the header align toggle button thing with the
menu and gave handle_view3d_around() a prototype to
clean up a warning
* Replaced the conglomerate of abbreviated texture blend
modes with a menu
toggle for all pivot modes. The 2 new pivot modes have been removed
from the popup.
Instead, a new toggle button is added to the 3d view header.
2) Grab cursor mode. Cursor can be grabbed (and constrained to axis, grid,
etc. while moving) like any other object. If no object is selected,
GKEY alone grabs the cursor, otherwise pressing CKEY while in GKEY mode
moves the cursor.
- small additions and fixes to enable the demo mode;
- Added sleep() to Blender.sys and 17 new functions to Blender.Window module:
things to help demo script writing and as a bonus read / write access to Blender's input event queue;
- updates in docs, those interested please check Window.py in python/api2_2x/doc/ to read about the new Blender.Window functions.
----
Demo mode should be working well now for (I) playing rt animation -- aka ALT+A -- and (II) rendering pics and anims and playing anims. I'll still add access to radiosity data and functions.
PS: Joseph Gilbert made (II) possible with the Scene.Render module he added for 2.32. He's been coding great things for bpython, so I'd like to take the chance to point that and thank him here.
- "Global Pivot": Maintains a global Pivot and Align mode setting for
all 3d views when enabled, instead of seperate settings per 3d view
- "Auto Perspective": Switch to ortho mode automatically on 1/3/7, and
to Perspective when the view is rotated with the mouse
- "Align mode": As suggested on the list, when enabled, transformations
on several objects only transform their locations, not their sizes or
rotations.
- Grid dotted when not 1:1
***ATTENTION***! The User Interface parts of these features have not been
committed, as I work on my own modified UI here. The three features need
toggle buttons to turn them on and off.
I used the following 3 buttons (first two features are in userprefs,
third as a 3d view setting):
uiDefButBitS(block, TOG, USER_AUTOPERSP, B_DRAWINFO, "Auto Persp",
(xpos+edgespace+(3*medprefbut)+(3*midspace)+smallprefbut+2),y3+10,smallprefbut,buth,
&(U.uiflag), 0, 0, 0, 0,
"Automatically switch between orthographic and perspective");
uiDefButBitS(block, TOG, USER_LOCKAROUND, B_DRAWINFO, "Global Pivot",
(xpos+edgespace+(4*midspace)+(4*medprefbut)),y3+10,smallprefbut,buth,
&(U.uiflag), 0, 0, 0, 0,
"Use global pivot setting for all 3d views");
uiDefIconButS(block, TOG|BIT|10, B_AROUND, ICON_ALIGN,
xco+=XIC,0,XIC,YIC,
&G.vd->flag, 0, 0, 0, 0, "Translate only (align)");
Someone needs to add these to the interface in an appropriate manner!
Thanks.
http://www.loria.fr/~levy/Galleries/LSCM/index.htmlhttp://www.loria.fr/~levy/Papers/2002/s2002_lscm.pdf
Implementation Least Squares Conformal Maps parameterization, based on
chapter 2 of:
Bruno Levy, Sylvain Petitjean, Nicolas Ray, Jerome Maillot. Least Squares
Conformal Maps for Automatic Texture Atlas Generation. In Siggraph 2002,
July 2002.
Seams: Stored as a flag (ME_SEAM) in the new MEdge struct, these seams define
where a mesh will be cut when executing LSCM unwrapping. Seams can be marked
and cleared in Edit Mode. Ctrl+EKEY will pop up a menu allowing to Clear or Mark
the selected edges as seams.
Select Linked in Face Select Mode now only selects linked faces if no seams
separate them. So if seams are defined, this will now select the 'face group'
defined by the seams. Hotkey is still LKEY.
LSCM Unwrap: unwrap UV's by calculating a conformal mapping (preserving local
angles). Based on seams, the selected faces will be 'cut'. If multiple
'face groups' are selected, they will be unwrapped separately and packed in
the image rectangle in the UV Editor. Packing uses a simple and fast
algorithm, only designed to avoid having overlapping faces.
LSCM can be found in the Unwrap menu (UKEY), and the UV Calculation panel.
Pinning: UV's can be pinned in the UV Editor. When LSCM Unwrap is then
executed, these UV's will stay in place, allowing to tweak the solution.
PKEY and ALT+PKEY will respectively pin and unpin selected UV's.
Face Select Mode Drawing Changes:
- Draw Seams option to enable disable drawing of seams
- Draw Faces option to enable drawing of selected faces in transparent purple
- Draw Hidden Edges option to enable drawing of edges of hidden faces
- Draw Edges option to enable drawing of edges of visible faces
The colors for these seams, faces and edges are themeable.
transformation (from vertex -> world space), used defines for vecadd and
vecsub, and intersects quads more efficient.
Result is about 2 times faster.
- Added draw mode for empty used as forcefield
- added defines VECADD and VECSUB
don't have them larger than 1, since vertices are drawn with it.
It is solved by patching code with minimal confusement. So you can get
automatic patched glPoints with:
bglBegin(GL_POINTS);
bglVertex3fv(vector);
bglEnd();
In glutil.c the wrapper can be found, that checks for maximum Pointsize,
and bypasses it to a glBitmap then.
Edges in Mesh
- adds automatic when you use creases. For other situations; call the
void make_edges(Mesh *me) in mesh.c. Of course, once in editmode the
edges are automatically recreated.
- in F9 buttons you can add/remove edges too
- both for Mesh and DisplistMesh, so it speeds up drawing quite some in
wireframe
- render for edges can't work... edges have no material nor tface nor col..
so here still the faces are rendered in wire
Creases in Subsurf
- based on the code by Chris McFarlen
- main changes is that now edges are used, saving quite some data in file
- use SHIFT+E in editmode to set edges-sharpness. values go from 0-1
- in F9 buttons you can set draw-crease mode. It draws now blended from
wire color to edge-select color (as provided in Theme)
Known issue: setting sharpness on 1 cube (subdiv 2) gives weird results
with some values... Chris, can you check?
Further; code cleanups, changing 0 in NULL when needed, no warnings, etc etc
The changes from the original include the ability to add a blurred edge with a selectable width to the wipe and to rotate the effect.
Has these sweep types included already
-single
-double
-iris
These still need to be coded
-box
-cross
-clock
With a click on the 'COL' buttons (the ones showing RGB) a menu pops up
with three colorpicking fields and a palette.
The fields are the three planar intersections of a HSV cube, each allowing
choosing in the field without the field changing.
The palette is 'modal' unfortunately (couldn't find a simple working other
method) where the button "paste to color" denotes the state that click in
palette copies to edited color, and "copy to palette" means the active
color is copied into the palette...
Todo:
- saving of palette in file
- decide whether ESC leaves without changes...
- added submenu "Scripts" in both View3D->Object and Mesh menus.
Put them on top (it's better to follow some guideline, so users don't have to search for "Scripts" submenu in a different position in each menu), feel free to change.
- added button 'previous win' to SpaceScript, makes accessing buttons win, for example, much faster. Maybe all spaces could have this button.
BPython:
- added Window.EditMode(), to check, enter and leave edit mode. Scripts that change mesh data need this to leave edit mode before making changes to the active (G.obedit) mesh, of course.
- updated script bevel_center to use the above function and also popup an error msg if the active obj is not a mesh.
- doc updates, minor fixes.
Forgot to mention in my previous commit that I also updated the "-P" command-line option (for running script files) to be able to run already loaded Blender Texts, too. So, if you have a script called 'Text' in foo.blend, you can run it with blender foo.blend -P Text .
http://www.blender3d.org/cms/Ramp_Shaders.348.0.html
Material color and specular now can be defined by a Colorband. The actual
color then is defined during shading based on:
- shade value (like dotproduct)
- energy value (dot product plus light)
- normal
- result of all shading (useful for adding stuff in the end)
Special request from [A]ndy! :)
New is that objects can have a force field, and Meshes can even deflect
(collide) particles. This is in a new sub-menu in Object buttons F7
The full instructions where on the web, Leon mailed it me and I will put
it in CMS tomorrow. For those who like to play with it now, here are demo
files:
http://download.blender.org/demo/test/
Quite some changes where in the integration though... so previous created
particle deflectors will not work. Changes to mention now are:
- gravity is renamed to 'force field'
- force field and deflector options are in Object now, not in Mesh
- the options also have its own struct, doesnt add to Object by default
- force fields are possible for all object types, but only work on center.
So empty objects are typical for it.
Work to do:
- add draw method in 3d win to denote forcefield objects
- check on the UI (panel with different size?)
- add 'recalc' button in deflector panel
This for all current NKEY menus by default. Can be standard for each hotkey
controlled Panel from now on; use toggle_blockhandler() for it.
Another popular request: hotkey enabled Panels now optionally reopen on
the previous location, instead of under mouse. This option "Pinned" is a
user option now. Optional for later; have it as per-panel option... dunno!
The last request, close on mouse-exit, won't be implemented, this intrudes
with Panel consistancy, and is pretty OK solved with NKEY-NKEY now.
this consists of 22 different ways to sweep from 1 strip to another. For you windows lovers: it's like "Blinds" in Powerpoint :)
- in the NKEY menu you can choose which type you want perform, vertical, horizontal, in/out etc. it's too much to decribe.
Credits for this go to Kent 'Sirdude" Mein who coded the sequence plugin I stole the code from.
To allow certain sequence effects to have settings, I also added a "varstr" void pointer to the Sequence DNA, that can point to a special struct for each effect. This is similar to how plugins are handles.
more neat effects to come....
- tiny updates for better behavior, unix line endings, cvs Id tags;
- Updated DX7 exporter (thanks to author Ben Omari who's also working on a DX8 one);
- added sysinfo script;
Interface (scripts):
- changed behavior for which win is chosen for script guis:
Now there's a smarter order, guis will use either:
- Scripts win
- Buttons win (if not a script from groups Wizards or Utils)
- Text win
- Closest bigger area
- Added a button to the scripts header so that it's faster to return to the buttons win (this can be made general), if that was the previous win used.
