Blender Git Loki

* fix for [#8085] Glare node crashes on inputs with < 4 colour channels

I had this assigned to Alfredo for a while, but he hasn't replied to the tracker at all, so I suspect he's not around. I'll commit this now to prevent crashes.

Some of the code in the glare node assumed that all buffers will be 4 channel RGBA, when in fact it was possible to give it a VEC3, such as a spec pass with no alpha, which would crash it. This fix just duplicates the input to a new temporary RGBA buffer to work on, if it's not already RGBA.

* "Drag Immediately" transform user preference.

It's already supported within transform, was previously known as 'tweak mode' and for some odd reason was a compile time option. This brings it to a user preference (in 'Edit Methods' section).

Basically it means that you don't need the extra click at the end to confirm a drag-move transform, if you're already dragged, you can just let go of the mouse rather than needing to click again. It's a lot more comfortable when you're used to using other applications as well as blender, and much more sensible for tablets.

This started life as patch #7144 by Ed Britton, but this implementation has been changed considerably.

Fix for bug #7863: AO made normal map baking unnecessarily slow.
Fix for bug #8226: approximate AO doesn't bake.

Render Simplification

This adds a few settings to control global render quality, for faster
renders when tweaking lighting etc. The implementation is not so great,
and this should really be part of a proper render profile and preset
system. So for now it's a hidden Peach feature, enabled by setting rt
to 1. Before the next release, I'll either remove or improve it.

Settings are:

- Maximum subsurf level
- Child particles percentage
- Maximum shadow map samples
- AO and SSS quality factor

Cloth: changes in editmode will influence the velocity by 10% now, changed/add some update calls for the implicit function

Bugfix: approximate AO with pixel cache & osa now should have fewer
black pixels.

== Action Editor - Insert Key+ "Active Group" ==

"Insert Key" menu in Action Editor (IKEY) now has a new option: "In Active Group". This only inserts keyframes in the active action group (if available).

Python API
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Added missing lamp.falloffType attribute. Also fixed typo in Render docs.

* fix provided by Stefan Birgmeier (qwequ777): int pos may lead to crashes on 64-bit systems. PyDict_Next takes a Py_ssize_t, not an int (tsk tsk).

Bugfix for use of unitinialized values when drawing hair dupli particles.

Pointcache for unsaved files is saved in /tmp/blendcache_untitled/... instead of not generating pointcache at all, be careful since the temp path can be NULL or missing.

This is messy because the files can be left there when blender quits, however saveBuffers and sessions alredy do :/ Some cleanup function needs to Blender that deals with this!

Fix for bug: [#8271] Changes to the texture settings for particle attributes are not updated
- Material buttons code didn't set particles update flag
- Small change to how particle emit time is interpreted from textures, now the "time" texture output can actually be used for something

Bugfix: when defocus node had nothing to do and just passed on the buffer,
it didn't correctly deal with pointers, gave a crash in some circumstances.

Fix for bug: [#8269] Particle / Vizualization / Draw / Disp reduces rendered particles
- Hair didn't update the visibility flag of each particle
- Changing the disp value gave a too strong update call to particles
- Changed disp value behavior for dynamic particles a bit, now all particles are always calculated for uncached frames so that every particle gets it's data cached. Now the disp value actually does what it's supposed to do, it alters the amount of particles DISPlayed in viewport, but doesn't change the simulations. (With old particles it was possible to only calculate the disp amount of particles too as everything was always recalculated from scratch anyways, but now that particles are more complicated and cached etc. it's not an option anymore.)

Added python access for baking
http://www.blender.org/documentation/246PythonDoc/
http://www.blender.org/documentation/246PythonDoc/Render.RenderData-class.html
http://www.blender.org/documentation/246PythonDoc/bpy_api_2_46.zip

Fix for bug: [#8247] Hairs that are added in particle mode act and render unpredictably when soft body is activated
-softbody BodyPoint indexes were created with a lag of one leading to use of wrong softbody points for particles when creating path cache
-interpolation points for softbody hair weren't chosen optimally when not yet at the end of a hair

Cloth: Fix order in collision loop -> solving selfcollision could result in new cloth-object collisions, adjust 'collision quality' for the number of loops taken

GUI fixes: some minor gui tweaks for collision modifier

Cloth: New: *simple* (OpenMP enabled) Selfcollisions available

Fix for bug #8245.