Index: src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.cpp =================================================================== --- src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.cpp (revision 34336) +++ src/BulletCollision/CollisionShapes/btScaledBvhTriangleMeshShape.cpp (working copy) @@ -61,10 +61,12 @@ scaledAabbMin[0] = m_localScaling.getX() >= 0. ? aabbMin[0] * invLocalScaling[0] : aabbMax[0] * invLocalScaling[0]; scaledAabbMin[1] = m_localScaling.getY() >= 0. ? aabbMin[1] * invLocalScaling[1] : aabbMax[1] * invLocalScaling[1]; scaledAabbMin[2] = m_localScaling.getZ() >= 0. ? aabbMin[2] * invLocalScaling[2] : aabbMax[2] * invLocalScaling[2]; + scaledAabbMin[3] = 0.0; /* otherwise un-initialized stack memory: uninitialized_stack_vec.patch, blender patch */ scaledAabbMax[0] = m_localScaling.getX() <= 0. ? aabbMin[0] * invLocalScaling[0] : aabbMax[0] * invLocalScaling[0]; scaledAabbMax[1] = m_localScaling.getY() <= 0. ? aabbMin[1] * invLocalScaling[1] : aabbMax[1] * invLocalScaling[1]; scaledAabbMax[2] = m_localScaling.getZ() <= 0. ? aabbMin[2] * invLocalScaling[2] : aabbMax[2] * invLocalScaling[2]; + scaledAabbMax[3] = 0.0; /* otherwise un-initialized stack memory: uninitialized_stack_vec.patch, blender patch */ m_bvhTriMeshShape->processAllTriangles(&scaledCallback,scaledAabbMin,scaledAabbMax);