Blender Git Loki

Calculation of the center and normal for sculpting would ignore whether the sculpting tool is using the current vertex positions/normals or the positions/normals from before the current edit. Most of the time this will lead to subtle and hard to predict differences from what a user might expect. There was sum testing and discussion about at the end of last summer and even some screen shots showing the difference. I'm going to go ahead and apply this since I do not think it is controversial.

use 2d copy functions with UV's in more places.

svn merge ^/trunk/blender -r42670:42680

Code cleanup: fix a few warnings (>= 0 and == -1 tests on unsigned types).

style edit only - move parenthesis onto second line of function definition (in keeping with most of blenders code)

also split some long lines in own code.

Automatically update sound animation cache when doing a mixdown.

Fix #29640: make duplicates release keep hierarchy and parent properties not
working for multiple objects.

ID.newid only worked for one object, now it uses a hash instead.

svn merge ^/trunk/blender -r42669:42670

svn merge ^/trunk/blender -r42660:42669

Fix #27847: sequencer scene strip rendering crash, due to use of freed
RenderResult.rect. Sergey did all the work to track this down, I'm just
committing a slighty different fix.

Fix use of deprecated im_type member in quicktime export.

Fix #29569: region expander widget drawing poorly antialiased.

Cycles Gamma Node
Node specially useful for Texture correction.

This is also a nice example of a simple node made from scratch in case someone wants to create their custom nodes.
Review by Brecht.

Math lib: matrix multiplication order fix for two functions that were
inconsistent with similar functions & math notation:

mul_m4_m4m4(R, B, A) => mult_m4_m4m4(R, A, B)
mul_m3_m3m4(R, B, A) => mult_m3_m3m4(R, A, B)

For branch maintainers, it should be relatively simple to fix things manually,
it's also possible run this script after merging to do automatic replacement:
http://www.pasteall.org/27459/python

Normal Node - Cycles
reviewed by Brecht, with help from Lukas.

Note: dot is reversed compared to Blender.
In Blender Normals point outside, while in Cycles they point inside.
If you use your own custom vector with the Normal Node you will see a difference.
If you feed it with object normals it should work just as good.

de-duplicate parent loop checking function

remove duplicate if'0'd functions, same versions are in drawarmature.c.
also added note of function to de-duplicate.

Fixed incorrect usage of enum as integer

static functions for getting power of 2 values were being copied about too much, add to the BLI_math api.
- is_power_of_2_i
- power_of_2_min_i
- power_of_2_max_i

Fixed point cache subframe interpolation issue.

Point cache interpolation was using too early start frame in cases when target frame was a subframe. This appeared as random ghost particles when rendering particle animation with full sample motion blur enabled.