moved files around

2006-05-25 19:18:29 +00:00
commit e061ec1ebf
1024 changed files with 349445 additions and 0 deletions
--- a/Bullet/CollisionShapes/BvhTriangleMeshShape.cpp
+++ b/Bullet/CollisionShapes/BvhTriangleMeshShape.cpp
@@ -0,0 +1,138 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+
+//#define DISABLE_BVH
+
+
+#include "CollisionShapes/BvhTriangleMeshShape.h"
+#include "CollisionShapes/OptimizedBvh.h"
+
+///Bvh Concave triangle mesh is a static-triangle mesh shape with Bounding Volume Hierarchy optimization.
+///Uses an interface to access the triangles to allow for sharing graphics/physics triangles.
+BvhTriangleMeshShape::BvhTriangleMeshShape(StridingMeshInterface* meshInterface)
+:TriangleMeshShape(meshInterface)
+{
+	//construct bvh from meshInterface
+#ifndef DISABLE_BVH
+
+	m_bvh = new OptimizedBvh();
+	m_bvh->Build(meshInterface);
+
+#endif //DISABLE_BVH
+
+}
+
+BvhTriangleMeshShape::~BvhTriangleMeshShape()
+{
+	delete m_bvh;
+}
+
+//perform bvh tree traversal and report overlapping triangles to 'callback'
+void	BvhTriangleMeshShape::ProcessAllTriangles(TriangleCallback* callback,const SimdVector3& aabbMin,const SimdVector3& aabbMax) const
+{
+
+#ifdef DISABLE_BVH
+	//brute force traverse all triangles
+	TriangleMeshShape::ProcessAllTriangles(callback,aabbMin,aabbMax);
+#else
+
+	//first get all the nodes
+
+	
+	struct	MyNodeOverlapCallback : public NodeOverlapCallback
+	{
+		StridingMeshInterface*	m_meshInterface;
+		TriangleCallback*		m_callback;
+		SimdVector3				m_triangle[3];
+
+
+		MyNodeOverlapCallback(TriangleCallback* callback,StridingMeshInterface* meshInterface)
+			:m_meshInterface(meshInterface),
+			m_callback(callback)
+		{
+		}
+				
+		virtual void ProcessNode(const OptimizedBvhNode* node)
+		{
+			const unsigned char *vertexbase;
+			int numverts;
+			PHY_ScalarType type;
+			int stride;
+			const unsigned char *indexbase;
+			int indexstride;
+			int numfaces;
+			PHY_ScalarType indicestype;
+			
+
+			m_meshInterface->getLockedReadOnlyVertexIndexBase(
+				&vertexbase,
+				numverts,
+				type,
+				stride,
+				&indexbase,
+				indexstride,
+				numfaces,
+				indicestype,
+				node->m_subPart);
+
+			int* gfxbase = (int*)(indexbase+node->m_triangleIndex*indexstride);
+			
+			const SimdVector3& meshScaling = m_meshInterface->getScaling();
+			for (int j=2;j>=0;j--)
+			{
+				
+				int graphicsindex = gfxbase[j];
+#ifdef DEBUG_TRIANGLE_MESH
+				printf("%d ,",graphicsindex);
+#endif //DEBUG_TRIANGLE_MESH
+				float* graphicsbase = (float*)(vertexbase+graphicsindex*stride);
+
+				m_triangle[j] = SimdVector3(
+					graphicsbase[0]*meshScaling.getX(),
+					graphicsbase[1]*meshScaling.getY(),
+					graphicsbase[2]*meshScaling.getZ());
+#ifdef DEBUG_TRIANGLE_MESH
+				printf("triangle vertices:%f,%f,%f\n",triangle[j].x(),triangle[j].y(),triangle[j].z());
+#endif //DEBUG_TRIANGLE_MESH
+			}
+
+			m_callback->ProcessTriangle(m_triangle,node->m_subPart,node->m_triangleIndex);
+			m_meshInterface->unLockReadOnlyVertexBase(node->m_subPart);
+		}
+
+	};
+
+	MyNodeOverlapCallback	myNodeCallback(callback,m_meshInterface);
+
+	m_bvh->ReportAabbOverlappingNodex(&myNodeCallback,aabbMin,aabbMax);
+
+
+#endif//DISABLE_BVH
+
+
+}
+
+
+void	BvhTriangleMeshShape::setLocalScaling(const SimdVector3& scaling)
+{
+	if ((getLocalScaling() -scaling).length2() > SIMD_EPSILON)
+	{
+		TriangleMeshShape::setLocalScaling(scaling);
+		delete m_bvh;
+		m_bvh = new OptimizedBvh();
+		m_bvh->Build(m_meshInterface);
+		//rebuild the bvh...
+	}
+}