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From Mike Weiblen, osgGLUTsimple and osgGLUTkeyboardmouse examples

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This commit is contained in:
Robert Osfield 2005-04-08 19:40:16 +00:00
parent e3091ac4bd
commit a54a3b2bfb
10 changed files with 510 additions and 1 deletions
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2
Make/dependencies
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@ -52,4 +52,4 @@ PERFORMER_INSTALLED ?= no
DEMETER_INSTALLED ?= no DEMETER_INSTALLED ?= no
GLUT_INSTALLED ?= no

5
Make/makedirdefs
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@ -251,3 +251,8 @@ endif
ifeq ($(DEMETER_INSTALLED),yes) ifeq ($(DEMETER_INSTALLED),yes)
EXAMPLE_DIRS += osgdemeter EXAMPLE_DIRS += osgdemeter
endif endif
ifeq ($(GLUT_INSTALLED),yes)
EXAMPLE_DIRS += osgGLUTsimple
EXAMPLE_DIRS += osgGLUTkeyboardmouse
endif

97
VisualStudio/examples/osgGLUTkeyboardmouse/osgGLUTkeyboardmouse.dsp Normal file
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@ -0,0 +1,97 @@
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97
VisualStudio/examples/osgGLUTsimple/osgGLUTsimple.dsp Normal file
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@ -0,0 +1,97 @@
# Microsoft Developer Studio Project File - Name="Example osgGLUTsimple" - Package Owner=<4>
# Microsoft Developer Studio Generated Build File, Format Version 6.00
# ** DO NOT EDIT **
# TARGTYPE "Win32 (x86) Console Application" 0x0103
CFG=Example osgGLUTsimple - Win32 Release
!MESSAGE This is not a valid makefile. To build this project using NMAKE,
!MESSAGE use the Export Makefile command and run
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!MESSAGE NMAKE /f "osgGLUTsimple.mak".
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!MESSAGE by defining the macro CFG on the command line. For example:
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!MESSAGE "Example osgGLUTsimple - Win32 Debug" (based on "Win32 (x86) Console Application")
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# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I "../../../include" /I "../../../../OpenThreads/include" /I "../../../../Producer/include" /I "../../../../3rdParty/include" /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
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18
examples/osgGLUTkeyboardmouse/GNUmakefile Normal file
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@ -0,0 +1,18 @@
TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
osgGLUTkeyboardmouse.cpp\
LIBS += -losgDB -losgUtil -losg -lglut $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
INSTFILES = \
$(CXXFILES)\
GNUmakefile.inst=GNUmakefile
EXEC = osgGLUTkeyboardmouse
INC += $(X_INC)
LDFLAGS += -L/usr/X11R6/lib
include $(TOPDIR)/Make/makerules

14
examples/osgGLUTkeyboardmouse/GNUmakefile.inst Normal file
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@ -0,0 +1,14 @@
TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
osgGLUTkeyboardmouse.cpp\
LIBS += -losgDB -losgUtil -losg -lglut $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = osgGLUTkeyboardmouse
INC += $(X_INC)
LDFLAGS +=
include $(TOPDIR)/Make/makerules

151
examples/osgGLUTkeyboardmouse/osgGLUTkeyboardmouse.cpp Normal file
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@ -0,0 +1,151 @@
// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
// (C) 2005 Mike Weiblen http://mew.cx/ released under the OSGPL.
// Simple example using GLUT to create an OpenGL window and OSG for rendering.
// Derived from osgGLUTsimple.cpp and osgkeyboardmouse.cpp
#include <iostream>
#ifdef WIN32
#include <windows.h>
#endif
#include <GL/glut.h>
#include <osg/Timer>
#include <osgUtil/SceneView>
#include <osgDB/ReadFile>
osg::ref_ptr<osgUtil::SceneView> sceneView;
osg::Timer_t start_tick;
unsigned int frameNum;
int lastx, lasty;
osg::Vec3 centerPos;
float viewRot, viewElev, viewRadius;
void display(void)
{
// set up the frame stamp for current frame to record the current time and frame number so that animtion code can advance correctly
osg::ref_ptr<osg::FrameStamp> frameStamp = new osg::FrameStamp;
frameStamp->setReferenceTime(osg::Timer::instance()->delta_s(start_tick,osg::Timer::instance()->tick()));
frameStamp->setFrameNumber( frameNum++ );
// pass frame stamp to the SceneView so that the update, cull and draw traversals all use the same FrameStamp
sceneView->setFrameStamp( frameStamp.get() );
// set the view
osg::Vec3 viewPos(
viewRadius * cos(viewElev) * sin(viewRot),
viewRadius * cos(viewElev) * cos(viewRot),
viewRadius * sin(viewElev));
sceneView->setViewMatrixAsLookAt( centerPos-viewPos, centerPos, osg::Vec3(0.0f,0.0f,1.0f) );
// do the update traversal the scene graph - such as updating animations
sceneView->update();
// do the cull traversal, collect all objects in the view frustum into a sorted set of rendering bins
sceneView->cull();
// draw the rendering bins.
sceneView->draw();
// Swap Buffers
glutSwapBuffers();
glutPostRedisplay();
}
void reshape( int w, int h )
{
// update the viewport dimensions, in case the window has been resized.
sceneView->setViewport( 0, 0, w, h );
}
void mousedown( int /*button*/, int /*state*/, int x, int y )
{
lastx = x;
lasty = y;
}
void mousemove( int x, int y )
{
viewRot += (x - lastx) / 100.0f;
viewElev -= (y - lasty) / 100.0f;
if( viewElev < -1.5f ) viewElev = -1.5f;
if( viewElev > 1.5f ) viewElev = 1.5f;
lastx = x;
lasty = y;
}
void keyboard( unsigned char key, int /*x*/, int /*y*/ )
{
switch( key )
{
case 27:
exit(0);
break;
case ' ':
viewRot = 0.0f;
viewElev = 0.0f;
break;
default:
break;
}
}
void menu( int selection )
{
std::cout << "menu selection = " << selection << std::endl;
}
int main( int argc, char **argv )
{
glutInit(&argc, argv);
if (argc<2)
{
std::cout << argv[0] <<": requires filename argument." << std::endl;
return 1;
}
// load the scene.
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
if (!loadedModel)
{
std::cout << argv[0] <<": No data loaded." << std::endl;
return 1;
}
glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_ALPHA );
glutInitWindowPosition( 100, 100 );
glutInitWindowSize( 800, 600 );
glutCreateWindow( argv[0] );
glutDisplayFunc( display );
glutReshapeFunc( reshape );
glutMouseFunc( mousedown );
glutMotionFunc( mousemove );
glutKeyboardFunc( keyboard );
glutCreateMenu( menu );
glutAddMenuEntry( "item 0", 0 );
glutAddMenuEntry( "item 1", 1 );
glutAttachMenu( GLUT_RIGHT_BUTTON );
// create the view of the scene.
sceneView = new osgUtil::SceneView;
sceneView->setDefaults();
sceneView->setSceneData(loadedModel.get());
// initialize the view to look at the center of the scene graph
const osg::BoundingSphere& bs = loadedModel->getBound();
centerPos = bs.center();
viewRot = 0.0f;
viewElev = 0.0f;
viewRadius = 2.0f * bs.radius();
// record the timer tick at the start of rendering.
start_tick = osg::Timer::instance()->tick();
frameNum = 0;
glutMainLoop();
return 0;
}
/*EOF*/

18
examples/osgGLUTsimple/GNUmakefile Normal file
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@ -0,0 +1,18 @@
TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
osgGLUTsimple.cpp\
LIBS += -losgDB -losgUtil -losg -lglut $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
INSTFILES = \
$(CXXFILES)\
GNUmakefile.inst=GNUmakefile
EXEC = osgGLUTsimple
INC += $(X_INC)
LDFLAGS += -L/usr/X11R6/lib
include $(TOPDIR)/Make/makerules

14
examples/osgGLUTsimple/GNUmakefile.inst Normal file
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@ -0,0 +1,14 @@
TOPDIR = ../..
include $(TOPDIR)/Make/makedefs
CXXFILES =\
osgGLUTsimple.cpp\
LIBS += -losgDB -losgUtil -losg -lglut $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
EXEC = osgGLUTsimple
INC += $(X_INC)
LDFLAGS +=
include $(TOPDIR)/Make/makerules

95
examples/osgGLUTsimple/osgGLUTsimple.cpp Normal file
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@ -0,0 +1,95 @@
// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
// (C) 2005 Mike Weiblen http://mew.cx/ released under the OSGPL.
// Simple example using GLUT to create an OpenGL window and OSG for rendering.
// Derived from osgsimple.cpp
#include <iostream>
#ifdef WIN32
#include <windows.h>
#endif
#include <GL/glut.h>
#include <osg/Timer>
#include <osgUtil/SceneView>
#include <osgDB/ReadFile>
osg::ref_ptr<osgUtil::SceneView> sceneView;
osg::Timer_t start_tick;
unsigned int frameNum;
osg::Matrix viewMatrix;
void display(void)
{
// set up the frame stamp for current frame to record the current time and frame number so that animtion code can advance correctly
osg::ref_ptr<osg::FrameStamp> frameStamp = new osg::FrameStamp;
frameStamp->setReferenceTime(osg::Timer::instance()->delta_s(start_tick,osg::Timer::instance()->tick()));
frameStamp->setFrameNumber( frameNum++ );
// pass frame stamp to the SceneView so that the update, cull and draw traversals all use the same FrameStamp
sceneView->setFrameStamp( frameStamp.get() );
// set the view
sceneView->setViewMatrix( viewMatrix );
// do the update traversal the scene graph - such as updating animations
sceneView->update();
// do the cull traversal, collect all objects in the view frustum into a sorted set of rendering bins
sceneView->cull();
// draw the rendering bins.
sceneView->draw();
// Swap Buffers
glutSwapBuffers();
glutPostRedisplay();
}
void reshape( int w, int h )
{
// update the viewport dimensions, in case the window has been resized.
sceneView->setViewport( 0, 0, w, h );
}
int main( int argc, char **argv )
{
glutInit(&argc, argv);
if (argc<2)
{
std::cout << argv[0] <<": requires filename argument." << std::endl;
return 1;
}
// load the scene.
osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
if (!loadedModel)
{
std::cout << argv[0] <<": No data loaded." << std::endl;
return 1;
}
glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_ALPHA );
glutInitWindowPosition( 100, 100 );
glutInitWindowSize( 800, 600 );
glutCreateWindow( argv[0] );
glutDisplayFunc( display );
glutReshapeFunc( reshape );
// create the view of the scene.
sceneView = new osgUtil::SceneView;
sceneView->setDefaults();
sceneView->setSceneData(loadedModel.get());
// initialize the view to look at the center of the scene graph
const osg::BoundingSphere& bs = loadedModel->getBound();
viewMatrix.makeLookAt(bs.center()-osg::Vec3(0.0,2.0f*bs.radius(),0.0),bs.center(),osg::Vec3(0.0f,0.0f,1.0f));
// record the timer tick at the start of rendering.
start_tick = osg::Timer::instance()->tick();
frameNum = 0;
glutMainLoop();
return 0;
}
/*EOF*/