Blender Git Loki

exposed per-constraint breaking angle and distance to python (for external mode only, for now)

fixed constraint restore with external fracture mode (using participants instead of jumping around in list, which messes up the iteration loop)

constraints transformation fix, transformations are updated on validation now

first successful simulation attempt with a bigger test data set, todo... set constraints relative to object , multiply with obmat during evaluation

extended FM python API: constraints have now settable locations and rotations, additionally there is an highly experimental constraint breaking mode (for external fracture mode ONLY)

initial, basic python API for Fracture Modifier contents: mesh_islands and mesh_constraints are createable, removable externally prior to running the simulation (in special "External" fracturing mode) so you can pack objects into the modifier (as mesh islands) and set constraints to connect them. This can happen in immediate update mode or updating is done via refresh operator. You can also have read access for island data after simulation, to dump the results.

added activation by force, if force exceeds an adjustable threshold, kinematic rigidbodies get activated / triggered by a force field

set shards to passive if shard weight (average vertex weight) is > 0.0f instead of 0.5f, this allows to keep shards passive in case they dont get enough weightpaint (in case they are inside, and interpolation of weights is not enough)

fixes: lower stability factor now lets the object break earlier ( effect was inverted) and added uv_layer to fracture presets (was missing)

taking stability factor now into account at dummy constraint calculation for compounds, it influences search radius and limit now, too

attempt to get more control over compound destruction behavior during simulation, with stability factor; recursive breaking of neighborhood happens if one connection breaks

partial fix for displacement / autohide flicker problem, happens now only with automerge (occasionally) and with automerge + fix normals (regularly), but for displacement and glass you mostly need only autohide; automerge and fix normals are for smooth objects where cracks should be nearly invisible (after fracturing)

added an autohide filter group, its helpers can be used to animate revelation of cracks which are hidden otherwise. This is basic revelation functionality via object locations and sizes only.

fix: make sure a rigidbody exists on each mesh island after loading when trying to access it

enabled trigger in dynamic fracture again, fix for cache stopping problem as well

fix for dynamic fracture rotation glitch (was wrong calculation)

attempt to fix customdata related memoryleak... it has been reduced, but isnt completely gone yet

minor fix for removed fracture setting in preset

Merge remote-tracking branch 'refs/remotes/origin/blender-v2.76-release' into fracture_modifier

Conflicts:
release/scripts/addons
source/blender/windowmanager/intern/wm_operators.c

deactivated the unfinished multiple fracture settings per object for now, didnt work properly