Rigidbody: Add option to choose mesh source for collision shapes

The options are:
Base: Base mesh
Deform: shape keys and deform modifiers
Final: All deformations and modifiers

It would be nice to have a way of specifying where exactly in the
modifier stack the collision shape is generated. However this is not
staight forward since the rigid body simulation is not part of the
modifier system and would require hacks to make it work.

1 files changed, 11 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_rigidbody_types.h b/source/blender/makesdna/DNA_rigidbody_types.h
index 4a96c324f04..de23a3c2370 100644
--- a/source/blender/makesdna/DNA_rigidbody_types.h
+++ b/source/blender/makesdna/DNA_rigidbody_types.h
@@ -103,7 +103,8 @@ typedef struct RigidBodyOb {
 	
 	int flag;				/* (eRigidBodyOb_Flag) */
 	int col_groups;			/* Collision groups that determines wich rigid bodies can collide with each other */
-	int pad;
+	short mesh_source;		/* (eRigidBody_MeshSource) mesh source for mesh based collision shapes */
+	short pad;
 	
 	/* Physics Parameters */
 	float mass;				/* how much object 'weighs' (i.e. absolute 'amount of stuff' it holds) */
@@ -173,6 +174,15 @@ typedef enum eRigidBody_Shape {
 	//RB_SHAPE_COMPOUND,
 } eRigidBody_Shape;
 
+typedef enum eRigidBody_MeshSource {
+	/* base mesh */
+	RBO_MESH_BASE = 0,
+	/* only deformations */
+	RBO_MESH_DEFORM,
+	/* final derived mesh */
+	RBO_MESH_FINAL
+} eRigidBody_MeshSource;
+
 /* ******************************** */
 /* RigidBody Constraint */