Blender Git Loki

Added blur, although I might rename this tool as smudge and make a seperate blur tool.

Fixed a bug that was preventing me from implementing the blur functionality. Should have blur working in 24 hours.

Merge branch 'master' into soc-2016-pbvh-painting

Did a little cleanup. Noticed I

Merge branch 'master' into soc-2016-pbvh-painting

Updated map to be more efficient. Fixed bug with brush radius. Next, looking into getting the nearest ray trace location.

Now free'ing maps. Removed unused function.

Added support for painting multiple leaves at the same time. Also added brush strength and curve fade support. I need to optimize how maps for vert->loops are generated and destroyed.

Merge branch 'master' into soc-2016-pbvh-painting

Preliminary PBVH painting on vertex paint. Should have weight painting at a similar stage relatively soon. Still need to select all leaves within brush region.

Merge branch 'master' into soc-2016-pbvh-painting

Added PBVH leaf painting to vertex paint. Weight painting not implemented, but wont take long at all to do.

Quick bug fix causing sculptcache to crash sculpt.

separated sculpt and vwpaint init stroke cache variants and invariants. Now creating a stroke cache in weight paint.

Alloc'd/free'd a stroke cache in both vertex and weight paint toggles.

Moved StrokeCache to sculpt_intern.h and included sculpt_intern.h in paint_vertex.c similar to how sculpt.c includes paint_intern.h.

Remove call to BKE_pbvh_draw from draw_mesh_paint, add pbvh BB drawing to dm's mappedfaces drawing callbacks.

Reading BKE_draw_pbvh code, this function actually handles the whole drawing,
seems like it does a partial update of only modified geometry (optimized drawing
in solid shadding case), don?t think we need that for v/wpaint, at least for now.

So rather just added a call to BKE_pbvh_draw_BB (in case debug value is set)
in dm's mappedfaces drawing callbacks, should do for now.

Merge branch 'master' into soc-2016-pbvh-painting

Changed PBVH material to match sculpt mode.

Added PBVH & drawing to vertex paint. Now free'ing when vertex/weight paint is toggled off.