Blender Git Loki

Add bContext to Lattice modifier data for future uses

Cleanup: Review modifier stack for lattice

Remove and move weight when remove vertex group

When remove a vertex group, moves the index of other weights

Cleanup: Reorganize and rename

New gpencil_modider.c module for modifiers and rename functions to keep naming convention

WIP: More work for vertexgroups

Apply vertexgroups to modifiers

WIP: Fisrt step to implement Vertex Groups

Still more work is required to use the vertex groups, but this commit add the data to bGPDspoint struct and basic functionalities.

Move update of lattice outside

The update of the GPD cache is moved to the corresponding update functions

Merge branch 'blender2.8' into greasepencil-object

Cleanup: Remove duplicate header definition

Fix missing object after reload

When reload a file the lattice object assigned to the modifier was missing.

The object neede a relink inside the modifier

WIP: Basic Lattice modifier

Still problems loading a previous file and other issues

Move LatticeDeformData struct definition to header

This struct is used outside of the lattice module now and the definition now can be shared in other modules.

Fix segment fault when free GHash

If the GHash is null, don't free again

Fix rotate 3D view segment fault

The context was wrong for new modes

WIP: more work in cache

Cleanup: Remove redundant parameter

Remove CACHE_REUSE

If we use a different area by object, the cache never can be reused

Fix memory leak

WIP: Basic new batch_cache by object

Need more work and review memory leaks

WIP: Add hash for derived frame

This is the first step to allow multi-user datablock