add Vehicles/Hinge2Vehicle demo, based on the ForkLift demo, using btHinge2Constraint with rigid body wheels

change btHinge2Constraint to derive from new btGeneric6DofSpring2Constraint

examples/SimpleOpenGL3/CMakeLists.txt

@@ -0,0 +1,52 @@
+
+
+INCLUDE_DIRECTORIES(
+	${BULLET_PHYSICS_SOURCE_DIR}/src 
+	${BULLET_PHYSICS_SOURCE_DIR}/btgui
+)
+ 
+ 
+SET(AppSimpleOpenGL3_SRCS
+	main.cpp
+	${BULLET_PHYSICS_SOURCE_DIR}/build3/bullet.rc
+)
+
+LINK_LIBRARIES(
+        gwen OpenGLWindow Bullet3Common ${OPENGL_gl_LIBRARY} ${OPENGL_glu_LIBRARY}
+)
+
+IF (WIN32)
+	SET(AppSimpleOpenGL3_SRCS ${AppSimpleOpenGL3_SRCS}  ${AppSimpleOpenGL3_Common_SRCS})
+	INCLUDE_DIRECTORIES(
+				${BULLET_PHYSICS_SOURCE_DIR}/btgui/OpenGLWindow/GlewWindows
+	)
+	ADD_DEFINITIONS(-DGLEW_STATIC)
+ELSE(WIN32)
+	IF(APPLE)
+		find_library(COCOA NAMES Cocoa)
+		MESSAGE(${COCOA})
+		link_libraries(${COCOA})
+	ELSE(APPLE)
+
+                 INCLUDE_DIRECTORIES(
+                                ${BULLET_PHYSICS_SOURCE_DIR}/btgui/OpenGLWindow/GlewWindows
+                 )
+                ADD_DEFINITIONS("-DGLEW_INIT_OPENGL11_FUNCTIONS=1")
+                ADD_DEFINITIONS("-DGLEW_STATIC")
+                ADD_DEFINITIONS("-DGLEW_DYNAMIC_LOAD_ALL_GLX_FUNCTIONS=1")
+
+		LINK_LIBRARIES( X11 pthread dl Xext)
+	ENDIF(APPLE)
+ENDIF(WIN32)
+
+
+ADD_EXECUTABLE(AppSimpleOpenGL3
+		${AppSimpleOpenGL3_SRCS}
+)
+	
+
+IF (INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES)
+			SET_TARGET_PROPERTIES(AppSimpleOpenGL3 PROPERTIES  DEBUG_POSTFIX "_Debug")
+			SET_TARGET_PROPERTIES(AppSimpleOpenGL3 PROPERTIES  MINSIZEREL_POSTFIX "_MinsizeRel")
+			SET_TARGET_PROPERTIES(AppSimpleOpenGL3 PROPERTIES  RELWITHDEBINFO_POSTFIX "_RelWithDebugInfo")
+ENDIF(INTERNAL_ADD_POSTFIX_EXECUTABLE_NAMES)

examples/SimpleOpenGL3/main.cpp

@@ -0,0 +1,57 @@
+#include "OpenGLWindow/SimpleOpenGL3App.h"
+#include "Bullet3Common/b3Vector3.h"
+#include "Bullet3Common/b3CommandLineArgs.h"
+#include "assert.h"
+#include <stdio.h>
+#include "OpenGLWindow/OpenGLInclude.h"
+
+char* gVideoFileName = 0;
+char* gPngFileName = 0;
+
+int main(int argc, char* argv[])
+{
+    b3CommandLineArgs myArgs(argc,argv);
+
+
+	SimpleOpenGL3App* app = new SimpleOpenGL3App("SimpleOpenGL3App",1024,768);
+	app->m_instancingRenderer->setCameraDistance(13);
+	app->m_instancingRenderer->setCameraPitch(0);
+	app->m_instancingRenderer->setCameraTargetPosition(b3MakeVector3(0,0,0));
+
+    assert(glGetError()==GL_NO_ERROR);
+
+    myArgs.GetCmdLineArgument("mp4_file",gVideoFileName);
+    if (gVideoFileName)
+        app->dumpFramesToVideo(gVideoFileName);
+
+    myArgs.GetCmdLineArgument("png_file",gPngFileName);
+    char fileName[1024];
+
+	do
+	{
+	    static int frameCount = 0;
+		frameCount++;
+		if (gPngFileName)
+        {
+            printf("gPngFileName=%s\n",gPngFileName);
+
+            sprintf(fileName,"%s%d.png",gPngFileName,frameCount++);
+            app->dumpNextFrameToPng(fileName);
+        }
+
+		assert(glGetError()==GL_NO_ERROR);
+		app->m_instancingRenderer->init();
+		app->m_instancingRenderer->updateCamera();
+
+		app->drawGrid();
+		char bla[1024];
+		sprintf(bla,"Simple test frame %d", frameCount);
+
+		app->drawText(bla,10,10);
+		app->swapBuffer();
+	} while (!app->m_window->requestedExit());
+
+
+	delete app;
+	return 0;
+}

examples/SimpleOpenGL3/premake4.lua

@@ -0,0 +1,28 @@
+	
+		project "App_SimpleOpenGL3"
+
+		language "C++"
+				
+		kind "ConsoleApp"
+
+  	includedirs {
+                ".",
+                "../../src",
+                ".."
+                }
+
+			
+		links{ "OpenGL_Window","Bullet3Common"}
+		initOpenGL()	
+		initGlew()
+	
+		files {
+		"*.cpp",
+		"*.h",
+		}
+		
+if os.is("Linux") then initX11() end
+
+if os.is("MacOSX") then
+	links{"Cocoa.framework"}
+end