BGE Animations: Adding a new choice for vertex deformation for armatures, which can be found in the Armature's Skeleton panel by the Deform options. Before only Blender's armature_deform_verts() was used. Now users can choose a vertex deformation function that is optimized for the BGE. At the moment it is mostly a copy of armature_deform_verts() with various chunks of code removed, and the BLI_math code was replaced with Eigen2. In my test scene, the new function offered about a 40% improvement over armature_deform_verts() (17~19ms rasterizer to 11~12ms). The only current limitation that I'm aware of if that B-Bone segments are not supported in the BGE version, and I will probably leave it out. I would like to also limit the BGE version to 4 weights to make things easier for a GPU version, but this may just make things slower (sorting weights to find the top 4).

1 files changed, 9 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_armature_types.h b/source/blender/makesdna/DNA_armature_types.h
index 808db1f4843..1675fdd3e90 100644
--- a/source/blender/makesdna/DNA_armature_types.h
+++ b/source/blender/makesdna/DNA_armature_types.h
@@ -96,7 +96,9 @@ typedef struct bArmature {
 	void		*sketch;				/* sketch struct for etch-a-ton */
 	
 	int			flag;
-	int			drawtype;			
+	int			drawtype;
+	int			gevertdeformer;			/* how vertex deformation is handled in the ge */
+	int			pad;
 	short		deformflag; 
 	short		pathflag;
 	
@@ -140,6 +142,12 @@ typedef enum eArmature_Drawtype {
 	ARM_WIRE
 } eArmature_Drawtype;
 
+/* armature->gevertdeformer */
+typedef enum eArmature_VertDeformer {
+	ARM_VDEF_BLENDER,
+	ARM_VDEF_BGE_CPU
+} eArmature_VertDeformer;
+
 /* armature->deformflag */
 typedef enum eArmature_DeformFlag {
 	ARM_DEF_VGROUP			= (1<<0),