Bugfix #21384: Bone Driven Shapekeys Child Evaluation Problem

Transform channel drivers for bones in 'localspace' was using the wrong matrix when getting the transforms. I had been assuming that pchan->chan_mat always contained only the matrix-ised transform values stored in the pchan (which is true while constraints are being evaluated, but not afterwards). 

Changes:
- Added a new function to calculate this matrix instead of directly writing it on the pchan->chan_matrix field. 
- Also, made the normalisation of the quaternion values during this process be done on a temp var instead of on the stored value. This was a constant source of confusion in the past, so let's see if we can do without it now :)

Unrelated to this commit, I've also fixed a compiler warning with previous commit that I missed (missing include).

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/makesrna/intern/rna_sequencer.c b/source/blender/makesrna/intern/rna_sequencer.c
index bacbf5f574e..7464df6eb79 100644
--- a/source/blender/makesrna/intern/rna_sequencer.c
+++ b/source/blender/makesrna/intern/rna_sequencer.c
@@ -35,6 +35,7 @@
 #include "DNA_scene_types.h"
 #include "DNA_sequence_types.h"
 
+#include "BKE_animsys.h"
 #include "BKE_sequencer.h"
 
 #include "MEM_guardedalloc.h"