Blender Git Loki

Change winding of looptris in subsurf so they point to the same
direction as the surface.

Fix crash texpainting on subsurfed meshes.

Unfortunately, loops and polys are generated, therefore we need to keep
copies. Still not painting after this commit but at least no crash now.

Cleanup: ws & correct comment

Projection Paint: move to looptri data

Don't create MFace's when calculating normals

Instead only create MFace layer when its requested

Add macro BKE_MESH_TESSTRI_VINDEX_ORDER

gives the index of a vertex in a looptri

Fix T45465

Easy one, we don't draw quads anymore. Also normal
didn't use polygon index

Fix no longer being possible to display a suzanne with 8 levels of
subdivision.

Classic integet overflow/size_t substitution case. Machines are getting
powerful enough to easily expose these kinds of error now.

Cleanup image's poll funcs.

Checking space returned from CTX_wm_space_image() is SPACE_IMAGE type... tssst. :)

Fix T45462: Do not enale 'replace image' op with packed images.

Let's use proper helpers for debug-only vars...

Fix for nodeitems module using the NODE_MT_add menu types from bl_ui.

This is basically a bad-level call: ui scripts are registered *after*
the modules. It only works for addons because those are loaded even
later.

Now the nodeitems_utils module just defines a function which is then
called by the UI script, rather than the other way around.

Make strict flags happy in release builds

Remove MTFace DM_paint_uvlayer_active_get func

Fix for error in looptri commit

Sculpting w/ subsurf crashed

Split ray_face_intersection into quad/tri versions

Since many callers only need a single triangle

Add tessellation data to DerivedMesh (LoopTri)

This stores loop indices into the loop array giving easier acess
to data such as vertex-colors and UV's,
removing the need to store an MFace duplicate of custom-data.

This doesn't yet move all internal code from MFace to LoopTri just yet.

Only applies to:
- opengl drawing
- sculpting (pbvh)
- vertex/weight paint

Thanks to @psy-fi for review, fixes and improvements to drawing!

Fix T45428: Sometimes in a dupligroup linked actuators are not triggered

Revert "BGE: Cleanup : merge 3 loop in 1 in function DupliGroupRecurse."

This reverts commit 371e5f25a054759014efa27c6fe4d497854ed64e.

The fix is basically to revert the cleanup commit 371e5f25 (and 3d658bf7)
Also 5dc22fbbf had to be adapted to the reverted code.

Conflicts:
source/gameengine/Ketsji/KX_Scene.cpp

Fix T45459: Edge Length with Separate Units Displayed As 1m 100cm.

Our 'unit epsilon' was too small, given the fact we only display up to four digits usually...

Fix T45451: File Browser crash on 16bits PNG image previews.

Issue was that with those files, Blender generate a float image by default, not a byte one...

Now, we ensure in two places we only get a byte imbuf for our thumbnails!