Added a first version of FractureDemo, showing basic fracture and glue of rigid bodies.
It assumes a btCompoundShaps (where the childshapes are the pre-fractured pieces) The btFractureBody is a class derived from btRigidBody, dealing with the collision impacts and connectivity/propagating the fracture. Press the F key to toggle between fracture and glue mode This is preliminary work, can be used as a starting point to implement your own fracture.
This commit is contained in:
erwin.coumans
@@ -12,7 +12,7 @@ IF (USE_GLUT)
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SET(SharedDemoSubdirs
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OpenGL AllBulletDemos ConvexDecompositionDemo
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CcdPhysicsDemo ConstraintDemo SliderConstraintDemo GenericJointDemo Raytracer
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RagdollDemo ForkLiftDemo BasicDemo Box2dDemo BspDemo MovingConcaveDemo VehicleDemo
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RagdollDemo ForkLiftDemo BasicDemo FractureDemo Box2dDemo BspDemo MovingConcaveDemo VehicleDemo
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UserCollisionAlgorithm CharacterDemo SoftDemo HeightFieldFluidDemo
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CollisionInterfaceDemo ConcaveConvexcastDemo SimplexDemo DynamicControlDemo
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DoublePrecisionDemo ConcaveDemo CollisionDemo
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@@ -40,6 +40,7 @@ ELSE (USE_GLUT)
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SUBDIRS(
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OpenGL
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BasicDemo
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FractureDemo
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Benchmarks
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Box2dDemo
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CollisionInterfaceDemo
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87
Demos/FractureDemo/CMakeLists.txt
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87
Demos/FractureDemo/CMakeLists.txt
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@@ -0,0 +1,87 @@
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# This is basically the overall name of the project in Visual Studio this is the name of the Solution File
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# For every executable you have with a main method you should have an add_executable line below.
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# For every add executable line you should list every .cpp and .h file you have associated with that executable.
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# This is the variable for Windows. I use this to define the root of my directory structure.
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SET(GLUT_ROOT ${BULLET_PHYSICS_SOURCE_DIR}/Glut)
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# You shouldn't have to modify anything below this line
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########################################################
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INCLUDE_DIRECTORIES(
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${BULLET_PHYSICS_SOURCE_DIR}/src ${BULLET_PHYSICS_SOURCE_DIR}/Demos/OpenGL
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)
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IF (USE_GLUT)
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LINK_LIBRARIES(
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OpenGLSupport BulletDynamics BulletCollision LinearMath ${GLUT_glut_LIBRARY} ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY}
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)
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IF (WIN32)
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ADD_EXECUTABLE(AppFractureDemo
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main.cpp
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FractureDemo.cpp
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FractureDemo.h
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${BULLET_PHYSICS_SOURCE_DIR}/msvc/bullet.rc
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)
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ELSE()
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ADD_EXECUTABLE(AppFractureDemo
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main.cpp
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FractureDemo.cpp
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FractureDemo.h
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)
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ENDIF()
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IF (WIN32)
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IF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES)
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IF (CMAKE_CL_64)
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ADD_CUSTOM_COMMAND(
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TARGET AppFractureDemo
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POST_BUILD
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COMMAND ${CMAKE_COMMAND} ARGS -E copy_if_different ${BULLET_PHYSICS_SOURCE_DIR}/glut64.dll ${CMAKE_CURRENT_BINARY_DIR}
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)
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ELSE(CMAKE_CL_64)
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ADD_CUSTOM_COMMAND(
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TARGET AppFractureDemo
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POST_BUILD
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# COMMAND copy /Y ${BULLET_PHYSICS_SOURCE_DIR}/GLUT32.DLL ${CMAKE_CURRENT_BINARY_DIR}
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COMMAND ${CMAKE_COMMAND} ARGS -E copy_if_different ${BULLET_PHYSICS_SOURCE_DIR}/GLUT32.DLL ${CMAKE_CURRENT_BINARY_DIR}
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)
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ENDIF(CMAKE_CL_64)
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ENDIF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES)
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ENDIF(WIN32)
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ELSE (USE_GLUT)
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LINK_LIBRARIES(
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OpenGLSupport BulletDynamics BulletCollision LinearMath ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY}
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)
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ADD_EXECUTABLE(AppFractureDemo
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WIN32
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../OpenGL/Win32AppMain.cpp
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Win32FractureDemo.cpp
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FractureDemo.cpp
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FractureDemo.h
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${BULLET_PHYSICS_SOURCE_DIR}/msvc/bullet.rc
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)
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ENDIF (USE_GLUT)
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IF (INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES)
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SET_TARGET_PROPERTIES(AppFractureDemo PROPERTIES DEBUG_POSTFIX "_Debug")
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SET_TARGET_PROPERTIES(AppFractureDemo PROPERTIES MINSIZEREL_POSTFIX "_MinsizeRel")
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SET_TARGET_PROPERTIES(AppFractureDemo PROPERTIES RELWITHDEBINFO_POSTFIX "_RelWithDebugInfo")
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ENDIF(INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES)
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1241
Demos/FractureDemo/FractureDemo.cpp
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1241
Demos/FractureDemo/FractureDemo.cpp
Normal file
File diff suppressed because it is too large
Load Diff
87
Demos/FractureDemo/FractureDemo.h
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87
Demos/FractureDemo/FractureDemo.h
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@@ -0,0 +1,87 @@
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/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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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.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#ifndef FRACTURE_DEMO_H
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#define FRACTURE_DEMO_H
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#ifdef _WINDOWS
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#include "Win32DemoApplication.h"
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#define PlatformDemoApplication Win32DemoApplication
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#else
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#include "GlutDemoApplication.h"
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#define PlatformDemoApplication GlutDemoApplication
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#endif
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#include "LinearMath/btAlignedObjectArray.h"
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class btBroadphaseInterface;
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class btCollisionShape;
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class btOverlappingPairCache;
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class btCollisionDispatcher;
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class btConstraintSolver;
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struct btCollisionAlgorithmCreateFunc;
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class btDefaultCollisionConfiguration;
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///FractureDemo shows basic breaking and glueing of objects
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class FractureDemo : public PlatformDemoApplication
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{
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//keep the collision shapes, for deletion/cleanup
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btAlignedObjectArray<btCollisionShape*> m_collisionShapes;
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btBroadphaseInterface* m_broadphase;
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btCollisionDispatcher* m_dispatcher;
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btConstraintSolver* m_solver;
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btDefaultCollisionConfiguration* m_collisionConfiguration;
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void showMessage();
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public:
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FractureDemo()
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{
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}
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virtual ~FractureDemo()
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{
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exitPhysics();
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}
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void initPhysics();
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void exitPhysics();
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virtual void clientMoveAndDisplay();
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virtual void displayCallback();
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virtual void keyboardCallback(unsigned char key, int x, int y);
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virtual void keyboardUpCallback(unsigned char key, int x, int y);
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static DemoApplication* Create()
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{
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FractureDemo* demo = new FractureDemo;
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demo->myinit();
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demo->initPhysics();
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return demo;
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}
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void shootBox(const btVector3& destination);
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};
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#endif //FRACTURE_DEMO_H
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25
Demos/FractureDemo/Win32FractureDemo.cpp
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25
Demos/FractureDemo/Win32FractureDemo.cpp
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@@ -0,0 +1,25 @@
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#ifdef _WINDOWS
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/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2011 Erwin Coumans http://bulletphysics.org
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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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.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "FractureDemo.h"
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///The 'createDemo' function is called from Bullet/Demos/OpenGL/Win32AppMain.cpp to instantiate this particular demo
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DemoApplication* createDemo()
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{
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return new FractureDemo();
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}
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#endif
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42
Demos/FractureDemo/main.cpp
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42
Demos/FractureDemo/main.cpp
Normal file
@@ -0,0 +1,42 @@
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/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2007 Erwin Coumans http://continuousphysics.com/Bullet/
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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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.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "FractureDemo.h"
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#include "GlutStuff.h"
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#include "GLDebugDrawer.h"
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#include "btBulletDynamicsCommon.h"
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#include "LinearMath/btHashMap.h"
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int main(int argc,char** argv)
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{
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GLDebugDrawer gDebugDrawer;
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FractureDemo ccdDemo;
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ccdDemo.initPhysics();
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ccdDemo.getDynamicsWorld()->setDebugDrawer(&gDebugDrawer);
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#ifdef CHECK_MEMORY_LEAKS
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ccdDemo.exitPhysics();
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#else
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return glutmain(argc, argv,640,480,"Bullet Physics Demo. http://bulletphysics.com",&ccdDemo);
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#endif
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//default glut doesn't return from mainloop
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return 0;
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}
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Reference in New Issue
Block a user