Blender Git Loki

MESH_OT_blend_from_shape: Add error when no selected vertex

This is just something simple I caught while testing the patch for multi-object.

Multi-Object-Mode: MESH_OT_blend_from_shape

"Blend from Shape" lists keys from active object and applies to all selected
objects that have keys with a matching name.

Changes from reviewer (Dalai Felinto):
* Code Style.
* Move Object **objects after sanity check to prevent leak when
returning OPERATOR_CANCELLED.
* Skip objects that have no selected vertex.
* Fixed existent comments code-style: Since we are changing the indentation of
these lines, may as well correct this as well.

Differential Revision: https://developer.blender.org/D3656

MESH_OT_shape_propagate_to_all: Add error when no selected vertex

This is just something simple I caught while testing the patch for multi-object.

Multi-Objects: MESH_OT_shape_propagate_to_all

Pressing "Propagate to Shapes" now propagates the current shapes to the selected
object's respective keys, if at least one selected object has shape keys.

Discussion here:
https://devtalk.blender.org/t/behaviour-of-shape-keys-in-multi-object-mode/1956/4

Changes from reviewer (Dalai Felinto):
* Code style
* Error message
* Remove dead code

Reviewers: dfelinto
Differential Revision: https://developer.blender.org/D3651

Merge branch 'master' into blender2.8

Buildbot: Usable PIE

Makes it impossible to run from GUI on certain platforms, see T56628.

Cleanup: edbm_do_smooth_laplacian_vertex_exec

Multi-Object-Editing: MESH_OT_vertices_smooth_laplacian

Since D3284 was inactive for a long time, I figured I could finish this.

This revision also gives warning when there are no selected faces or when
selected faces are invalid.

Changes from reviewer (Dalai Felinto) :
* Code style
* Fix checking for ngons (BM_ITER_MESH is a for loop, you need to break from it
before continuing the object iteration loop).

Differential Revision: https://developer.blender.org/D3659

Cloth: Implement angular bending springs

This implements angular bending springs for cloth simulation. This also
adds shearing springs for n-gons.

This angular spring implementation does not include Jacobian matrices,
as the springs can exist between polygons of different vertex counts,
rendering their relationships asymmetrical, and thus impossible to solve
with the current implementation. This means that the bending component
is solved explicitly. However, this is usually not a big problem, as
bending springs contribute less to instability than structural springs.

The the old linear bending model can still be used, and is the default for
existing files, to keep compatibility. However, the new angular bending
model is the default for any new simulation.

This commit makes small breaking changes, in that shearing springs are
now created on n-gons (also in linear bending mode), while n-gons were
previously ignored.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D3662

Cloth: Componentize forces

This separates cloth stiffness and damping forces into tension,
compression, and shearing components, allowing more control over the
cloth behaviour.

This also adds a bending model selector (although the new bending model
itself is not implemented in this commit). This is because some of the
features implemented here only make sense within the new bending model,
while the old model is kept for compatibility.

This commit makes non-breaking changes, and thus maintains full
compatibility with existing simulations.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D3655

Multi-Objects: VIEW3D_OT_snap_selected_to_cursor by Habib Gahbiche

Objects in edit mode now behave as if they were joined.

Changes from reviewer (Dalai Felinto): code style (tabs, spaces, ...), missing MEM_freeN(objects);

https://developer.blender.org/D3648

Python: Enable MASS unit in FloatProperty

MASS unit was already implemented for the C api. Only making sure it is
accessible in the python api. Also added 'CAMERA' to the documentation as a valid option.

Fix Text Boxes not drawing

I'm using a different shading group for the active text box and the others.
This way I can assign different colors to them.

The alternative would be to create a new `shgroup_dynlines_dashed_flat_color`,
but I find this overkill for such a simple use case.

Remove CCGDM from PBVH

The statement that PBVH needs to keep track of CCGDM is wrong, PBVH itself
does not care about CCGDM at all, and it's weird for it to carry on this
beast so others can access.

Even more, nobody will actually caring about CCGDM itself, all the usages
were checking whether there is CCGDM or not. This is as good as simply
checking PBVH type.

Tested with an original report T53551 and everything is still stable.

Fix broken decorate buttong dragging after recent changes.

Merge branch 'master' into blender2.8

Fix T56618: crash in release builds when GHOST asserts.

WITH_ASSERT_ABORT was not disabled for release builds. In most cases asserts
are disabled in release builds, but not always.

This also changes the buildbot to use blender_release.cmake instead of
blender_full.cmake, the only effective difference should be WITH_ASSERT_ABORT.

Fix T56618: crash when typing certain characters on Linux.

Merge branch 'master' into blender2.8

Cycles: Cleanup, use explicit comparison with NULL