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, 5 insertions, 1 deletions

diff --git a/source/gameengine/Converter/BL_ArmatureObject.h b/source/gameengine/Converter/BL_ArmatureObject.h
index 2c3ca7404b3..1467f05c1bd 100644
--- a/source/gameengine/Converter/BL_ArmatureObject.h
+++ b/source/gameengine/Converter/BL_ArmatureObject.h
@@ -69,7 +69,8 @@ public:
 		void* sgReplicationInfo,
 		SG_Callbacks callbacks,
 		Object *armature,
-		Scene *scene
+		Scene *scene,
+		int vert_deform_type
 	);
 	virtual ~BL_ArmatureObject();
 
@@ -90,6 +91,8 @@ public:
 	
 	Object* GetArmatureObject() {return m_objArma;}
 
+	int GetVertDeformType() {return m_vert_deform_type;}
+
 	// for constraint python API
 	void LoadConstraints(KX_BlenderSceneConverter* converter);
 	size_t GetConstraintNumber() const { return m_constraintNumber; }
@@ -136,6 +139,7 @@ protected:
 	double  m_timestep;		// delta since last pose evaluation.
 	class BL_ActionActuator *m_activeAct;
 	short	m_activePriority;
+	int		m_vert_deform_type;
 	size_t  m_constraintNumber;
 	size_t  m_channelNumber;
 	// store the original armature object matrix