== SoC Bullet - Bullet Upgrade to 2.76 ==

Updated Blender's Bullet to 2.76 in this branch only.

This update was done by:
1) deleting the contents of the existing extern/bullet2/src directory (leaving the .svn folder in place),
2) copy/pasting the contents of the bullet/src directory (from unzipped Bullet archive) into this newly cleared folder. 

Hopefully there aren't any patches that are still needed from the Bullet we had in source.

---

Note: I didn't use Moguri's patch, since that was giving me compile errors with headers not being able to be found.

[[Split portion of a mixed commit.]]

1 files changed, 46 insertions, 0 deletions

diff --git a/extern/bullet2/BulletCollision/CollisionDispatch/btInternalEdgeUtility.h b/extern/bullet2/BulletCollision/CollisionDispatch/btInternalEdgeUtility.h
new file mode 100644
index 00000000000..9efb0122bb8
--- /dev/null
+++ b/extern/bullet2/BulletCollision/CollisionDispatch/btInternalEdgeUtility.h
@@ -0,0 +1,46 @@
+
+#ifndef BT_INTERNAL_EDGE_UTILITY_H
+#define BT_INTERNAL_EDGE_UTILITY_H
+
+#include "LinearMath/btHashMap.h"
+#include "LinearMath/btVector3.h"
+
+#include "BulletCollision/CollisionShapes/btTriangleInfoMap.h"
+
+///The btInternalEdgeUtility helps to avoid or reduce artifacts due to wrong collision normals caused by internal edges.
+///See also http://code.google.com/p/bullet/issues/detail?id=27
+
+class btBvhTriangleMeshShape;
+class btCollisionObject;
+class btManifoldPoint;
+class btIDebugDraw;
+
+
+
+enum btInternalEdgeAdjustFlags
+{
+	BT_TRIANGLE_CONVEX_BACKFACE_MODE = 1,
+	BT_TRIANGLE_CONCAVE_DOUBLE_SIDED = 2, //double sided options are experimental, single sided is recommended
+	BT_TRIANGLE_CONVEX_DOUBLE_SIDED = 4
+};
+
+
+///Call btGenerateInternalEdgeInfo to create triangle info, store in the shape 'userInfo'
+void	btGenerateInternalEdgeInfo (btBvhTriangleMeshShape*trimeshShape, btTriangleInfoMap* triangleInfoMap);
+
+
+///Call the btFixMeshNormal to adjust the collision normal, using the triangle info map (generated using btGenerateInternalEdgeInfo)
+///If this info map is missing, or the triangle is not store in this map, nothing will be done
+void	btAdjustInternalEdgeContacts(btManifoldPoint& cp, const btCollisionObject* trimeshColObj0,const btCollisionObject* otherColObj1, int partId0, int index0, int normalAdjustFlags = 0);
+
+///Enable the BT_INTERNAL_EDGE_DEBUG_DRAW define and call btSetDebugDrawer, to get visual info to see if the internal edge utility works properly.
+///If the utility doesn't work properly, you might have to adjust the threshold values in btTriangleInfoMap
+//#define BT_INTERNAL_EDGE_DEBUG_DRAW
+
+#ifdef BT_INTERNAL_EDGE_DEBUG_DRAW
+void	btSetDebugDrawer(btIDebugDraw* debugDrawer);
+#endif //BT_INTERNAL_EDGE_DEBUG_DRAW
+
+
+#endif //BT_INTERNAL_EDGE_UTILITY_H
+