This is an interesting bug since it is likely the cause of many other suspicious python crashes in blender.
sys.last_traceback would store references to PyObjects at the point of the crash.
it would only free these when sys.last_traceback was set again or on exit.
This caused many crashes in the BGE while testing since python would end up freeing invalid game objects -
When running scripts with errors, Blender would crash every 2-5 runs - in my test just now it crashed after 4 trys.
It could also segfault blender, when (for eg) you run a script that has objects referenced. then load a new file and run another script that raises an error.
In this case all the invalid Blender-Object's user counts would be decremented, even though none of the pointers were still valid.
After some discussion with Campbell, changed the way cstruct sizeof is fetched.
Moved DataSize() to Blender.Types.CSizeof(Blendertype). Supported types return sizeof(data struct), otherwise -1.
To quickly check what types are supported:
import Blender.Types as bt
x = dir(bt)
for t in x:
if t[0] != '_':
s = 'bt.CSizeof(bt.' + t + ')'
print t,"=", eval(s)
[#17867] Adds option to SCONS to generate Python API documentation
Added patch from Brandano with some small improvements (BF_DOCDIR, clean) by yours truly.
To use make sure you have epydoc installed. Enable with WITH_BF_BPYDOC=1.
* fix two typos in RenderLayer API (renderosiy -> renderosity in two places. Will break .py's saved with render_save_layers.py, just fix passRadiosiy and passRadiosiyXOR)
* add some docs on RenderLayer API
* fix some copy/paste leftover in render_save_layers.py
Now it is possible to clean IPO-curves using the call:
icu.clean()
There's an optional value to specify the threshold to use for cleaning.
This just wraps the internal clean_ipo_curve() function.
Bug: [#17734] Loading a python script's help dosn't work
reported by Rian Tut (thanks).
Actual problem: scripts with spaces in their filenames were not supported by the code that registers scripts in menus and runs them. Added support w/o breaking eventual, rare scripts that parse the Bpymenus file. They will still need an update to support filenames with spaces, like done here for these scripts: Scripts Help Browser and Scripts Config Editor.
PS: tested on Linux. Please test on other platforms: just make sure scripts still appear in menus (the File->Export, for example), even after re-registering them (Scripts window -> Scripts Menu -> Update Menus) and that the Scripts Help Browser still works.
----------
Add optional string argument to Object.newParticleSystem() method, so that
objects can link to existing particle systems (if the name of the particle
system is known). Also cleans up some code in Object.c which accesses the
particle sys listbase.
- the number of segments was always 1 too many on cyclic curves.
- [#17739] - normals were not being calculated when rendering curves.
Replaced macro DL_SURFINDEX with a function. it that assumes variable names and could break from the loop that called it.
* subsurf code had a lot of unused variables, removed these where they are obviously not needed. commented if they could be useful later.
* some variables declorations hide existing variables (many of these left), but fixed some that could cause confusion.
* removed unused vars
* obscure python memory leak with colorband.
* make_sample_tables had a loop running wasnt used.
* if 0'd functions in arithb.c that are not used yet.
* made many functions static
(updated select group toolbox and header menu)
Added 2 copy property options - Replace All and Merge All, since there was no way to remove all properties, or set all objects game properties to be the same as the active objects.
Added set_ob_property(ob, prop) to property api.
bugfix in python api, copyAllPropertiesTo, it didnt check for duplicates or that it wasnt copying from/to the same object.
Patch by Darryl Pogue (paradox).
Blender cuts off datablock names at 20 chars, which causes issues if you're trying to access Scenes with a string longer
than 20 chars.
Ex.
s = 'GuildPub-Writers_GLOBAL'
Blender.Scene.New(s) #This creates the scene "GuildPub-Writers_GLOB"
Blender.Scene.Get(s) #This throws an error: the name and the string don't match
This patch cuts down the input of Scene.Get() to the 20 char limits, thus making the the above example return the correct
scene.
- calling Text_reset within C/Api funcs didnt decref the Py_None Text_reset returned.
- Text_delete wasnt checking if the input was an int.
- a number of functions wernt checking if the text was removed.
console.py
- added clear output
- command history leaves empty command before wrapping
- add imports as dummy user input so commands written to a text file will run.
- faster writing of output to a textblock.
Commit patch #7788, allow to set the render step, so it's
possible make render every N frames only.
The step is change in Scene buttons (F10), below start and
end frame buttons.
Also add a command line options (-j), so it's possible to
overwrite the file step (useful for renderfarm).
[ Brecht, this work with OpenGL renders and simulated
the skipped frames, please double check ]
Patch #9673: "Short patch to make spacehandler event scripts work more like normal python gui script handlers" by Steven Truppe:
http://projects.blender.org/tracker/?func=detail&atid=127&aid=9673&group_id=9
This patch adds the Blender.eventValue variable available for space handlers, holding the event value (aka 1 for button and key presses, X or Y coordinate for mousex / mousey movement). Thanks, Steven. PS: this doesn't break existing scripts.
Bug #17599:
Summary: Python constraints, good in 2.46 not working anymore in 2.47
http://projects.blender.org/tracker/?func=detail&atid=125&aid=17599&group_id=9
Improved my old hack to avoid frame changed scriptlinks from running when rendering stills, should fix this bug. It also causes REDRAW scriptlinks to be executed during renders, but that conforms to how FRAMECHANGED ones work.
BTW: this can still be improved. The current system meant to disable all Python functionality at once needs imo to be replaced by one that allows to enable / disable per feature (scriptlinks, pyconstraints, pynodes, etc.). A better way to inform scriptlinks about what is going on (render, anim, render anim, etc.) would also help. Will discuss with others.
QUATERNION
B_BONE_REST
INVERT_VERTGROUP
MULTIMODIFIER
to the bpy armature modifier API.
It also fixes a significant problem - In the docs, it refers to
the 'VERTGROUP' field as being a string value, shared
by lattice, armature, etc, referring to the 'VGroup' field in the
armature modifier that defines a vertex group 'mask'
which the armature's effect is restricted to.
However, previously, for some very mistaken reason, in processing
the getters/setters for the armature modifier, the
VERTGROUP field was pointing to the quite different 'Vert. Groups'
toggle in the armature modifier, that enables or
disables using vertex groups for deformation (as opposed to
envelopes).
I've fixed this, so VERTGROUP points to the VGroup string, as is
already defined in the docs and consistent with other
modifiers like Lattice. A new field: 'VGROUPS' has been added,
which is the analog to the 'Vert Groups' toggle.
The 'opposite' of the "Insert Key" tool.
- Use the hotkey Ctrl-Alt-IKEY to activate.
- Only available in 3d-view and buttons window
I've added an extra var to verify_ipo and verify_ipocurve to save having to make another duplicate of that code. Hopefully the gameengine compiles ok with this.
* Moved all keyframing functions to their own file (keyframing.c)
* Merged all the different keyframing options (needed, visual, fast) into a single API call. The direct benefit of this is that it allows them to be used in conjunction with each other. Also, this means that when using the IKEY, autokeying settings for these are respected too.
* Implemented 'keyingsets' system (instead of directly calling insertkey on relevant channels), which is easier to maintain and cleaner. A keyingset basically defines all the channels that can be keyframed together. This paves the way for custom keyingsets sometime down the track (and also for quick-insert keyframes for previously used keyingset).
Menus for choosing the keying set to use are generated automatically from the definitions.
----------
Second and final part of MTex API changes. Added support for new attributes for MTex World objects, stricter checking of attribute types for materia/lamp/world MTex objects, setters for lamp.textures and world.textures attributes, and updated documentation.
