Added the beginings of an osglight demo.
This commit is contained in:
Robert Osfield
95
VisualStudio/Demos/osglight/osglight.dsp
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95
VisualStudio/Demos/osglight/osglight.dsp
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# Microsoft Developer Studio Project File - Name="Demo osglight" - Package Owner=<4>
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# Microsoft Developer Studio Generated Build File, Format Version 6.00
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# ** DO NOT EDIT **
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# TARGTYPE "Win32 (x86) Console Application" 0x0103
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CFG=Demo osglight - Win32 Release
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!MESSAGE This is not a valid makefile. To build this project using NMAKE,
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!MESSAGE use the Export Makefile command and run
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!MESSAGE
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!MESSAGE NMAKE /f "osglight.mak".
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!MESSAGE
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!MESSAGE You can specify a configuration when running NMAKE
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!MESSAGE by defining the macro CFG on the command line. For example:
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!MESSAGE
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!MESSAGE NMAKE /f "osglight.mak" CFG="Demo osglight - Win32 Release"
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!MESSAGE
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!MESSAGE Possible choices for configuration are:
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!MESSAGE
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!MESSAGE "Demo osglight - Win32 Release" (based on "Win32 (x86) Console Application")
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!MESSAGE "Demo osglight - Win32 Debug" (based on "Win32 (x86) Console Application")
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!MESSAGE
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# Begin Project
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# PROP AllowPerConfigDependencies 0
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# PROP Scc_ProjName ""
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# PROP Scc_LocalPath ""
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CPP=cl.exe
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RSC=rc.exe
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!IF "$(CFG)" == "Demo osglight - Win32 Release"
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# PROP BASE Use_MFC 0
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# PROP BASE Use_Debug_Libraries 0
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# PROP BASE Output_Dir "Release"
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# PROP BASE Intermediate_Dir "Release"
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# PROP BASE Target_Dir ""
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# PROP Use_MFC 0
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# PROP Use_Debug_Libraries 0
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# PROP Output_Dir "Release"
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# PROP Intermediate_Dir "Release"
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# PROP Ignore_Export_Lib 0
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# PROP Target_Dir ""
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# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
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# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I "../../../include" /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
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# ADD BASE RSC /l 0x809 /d "NDEBUG"
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# ADD RSC /l 0x809 /d "NDEBUG"
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BSC32=bscmake.exe
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# ADD BASE BSC32 /nologo
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# ADD BSC32 /nologo
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LINK32=link.exe
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# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
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# ADD LINK32 /nologo /subsystem:console /pdb:none /machine:I386 /out:"../../../bin/osglight.exe" /libpath:"../../../lib"
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!ELSEIF "$(CFG)" == "Demo osglight - Win32 Debug"
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# PROP BASE Use_MFC 0
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# PROP BASE Use_Debug_Libraries 1
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# PROP BASE Output_Dir "Debug"
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# PROP BASE Intermediate_Dir "Debug"
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# PROP BASE Target_Dir ""
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# PROP Use_MFC 0
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# PROP Use_Debug_Libraries 1
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# PROP Output_Dir "Debug"
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# PROP Intermediate_Dir "Debug"
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# PROP Ignore_Export_Lib 0
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# PROP Target_Dir ""
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# ADD BASE CPP /nologo /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c
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# ADD CPP /nologo /MDd /W3 /Gm /vd0 /GR /GX /Zi /Od /I "../../../include" /D "_CONSOLE" /D "_MBCS" /D "FL_DLL" /D "WIN32" /D "_DEBUG" /FR /YX /FD /c
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# ADD BASE RSC /l 0x809 /d "_DEBUG"
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# ADD RSC /l 0x809 /d "_DEBUG"
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BSC32=bscmake.exe
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# ADD BASE BSC32 /nologo
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# ADD BSC32 /nologo
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LINK32=link.exe
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# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
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# ADD LINK32 glut32.lib glu32.lib opengl32.lib /nologo /subsystem:console /debug /machine:I386 /nodefaultlib:"libcmt" /out:"../../../bin/osglightd.exe" /pdbtype:sept /libpath:"../../../lib"
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# SUBTRACT LINK32 /incremental:no
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!ENDIF
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# Begin Target
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# Name "Demo osglight - Win32 Release"
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# Name "Demo osglight - Win32 Debug"
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# Begin Source File
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SOURCE=..\..\..\src\Demos\osglight\osglight.cpp
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# End Source File
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# End Target
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# Begin Group "Resource Files"
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# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
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# End Group
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# End Project
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@@ -1302,6 +1302,60 @@ Package=<4>
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Project: "Demo osglight"=.\Demos\osglight\osglight.dsp - Package Owner=<4>
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Package=<5>
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{{{
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}}}
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Package=<4>
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{{{
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Begin Project Dependency
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Project_Dep_Name Core osg
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End Project Dependency
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Begin Project Dependency
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Project_Dep_Name Core osgDB
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End Project Dependency
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Begin Project Dependency
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Project_Dep_Name Core osgGA
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End Project Dependency
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Begin Project Dependency
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Project_Dep_Name Core osgGLUT
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End Project Dependency
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Begin Project Dependency
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Project_Dep_Name Core osgUtil
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End Project Dependency
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}}}
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###############################################################################
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Project: "Demo osgviews"=.\Demos\osgviews\osgviews.dsp - Package Owner=<4>
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16
src/Demos/osglight/Makefile
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16
src/Demos/osglight/Makefile
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TOPDIR = ../../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osglight.cpp\
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LIBS += $(OSG_LIBS) $(GLUT_LIB) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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INSTFILES = \
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$(CXXFILES)\
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Makefile.inst=Makefile
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EXEC = osglight
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include $(TOPDIR)/Make/makerules
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12
src/Demos/osglight/Makefile.inst
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12
src/Demos/osglight/Makefile.inst
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@@ -0,0 +1,12 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osglight.cpp\
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LIBS += $(OSG_LIBS) $(GLUT_LIB) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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EXEC = osglight
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include $(TOPDIR)/Make/makerules
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246
src/Demos/osglight/osglight.cpp
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246
src/Demos/osglight/osglight.cpp
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@@ -0,0 +1,246 @@
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#include <osg/GL>
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#include <osgGLUT/glut>
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#include <osgGLUT/Viewer>
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#include <osg/Group>
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#include <osg/Node>
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#include <osg/Transform>
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#include <osg/Light>
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#include <osg/LightSource>
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#include <osg/StateAttribute>
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#include <osg/Geometry>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include <osgUtil/Optimizer>
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#include <osgUtil/SmoothingVisitor>
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#include "stdio.h"
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osg::Node* createLights(osg::BoundingBox& bb,osg::StateSet* rootStateSet)
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{
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osg::Group* lightGroup = new osg::Group;
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float modelSize = bb.radius();
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// create a spot light.
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osg::Light* myLight1 = new osg::Light;
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myLight1->setLightNum(0);
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myLight1->setPosition(osg::Vec4(bb.corner(4),1.0f));
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myLight1->setAmbient(osg::Vec4(1.0f,0.0f,0.0f,1.0f));
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myLight1->setDiffuse(osg::Vec4(1.0f,0.0f,0.0f,1.0f));
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myLight1->setSpotCutoff(20.0f);
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myLight1->setDirection(osg::Vec3(1.0f,1.0f,-1.0f));
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osg::LightSource* lightS1 = new osg::LightSource;
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lightS1->setLight(myLight1);
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lightS1->setLocalStateSetModes(osg::StateAttribute::ON);
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lightS1->setStateSetModes(*rootStateSet,osg::StateAttribute::ON);
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lightGroup->addChild(lightS1);
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// create a local light.
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osg::Light* myLight2 = new osg::Light;
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myLight2->setLightNum(1);
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myLight2->setPosition(osg::Vec4(bb.corner(1),1.0f));
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myLight2->setAmbient(osg::Vec4(0.0f,1.0f,1.0f,1.0f));
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myLight2->setDiffuse(osg::Vec4(0.0f,1.0f,1.0f,1.0f));
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myLight2->setConstantAttenuation(1.0f);
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myLight2->setLinearAttenuation(2.0f/modelSize);
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myLight2->setQuadraticAttenuation(2.0f/osg::square(modelSize));
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osg::LightSource* lightS2 = new osg::LightSource;
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lightS2->setLight(myLight2);
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lightS2->setLocalStateSetModes(osg::StateAttribute::ON);
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lightS2->setStateSetModes(*rootStateSet,osg::StateAttribute::ON);
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lightGroup->addChild(lightS2);
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return lightGroup;
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}
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osg::Geometry* createWall(const osg::Vec3& v1,const osg::Vec3& v2,const osg::Vec3& v3,osg::StateSet* stateset)
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{
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// create a drawable for occluder.
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osg::Geometry* geom = osgNew osg::Geometry;
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geom->setStateSet(stateset);
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unsigned int noXSteps = 100;
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unsigned int noYSteps = 100;
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osg::Vec3Array* coords = osgNew osg::Vec3Array;
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coords->reserve(noXSteps*noYSteps);
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osg::Vec3 dx = (v2-v1)/((float)noXSteps-1.0f);
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osg::Vec3 dy = (v3-v1)/((float)noYSteps-1.0f);
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unsigned int row;
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osg::Vec3 vRowStart = v1;
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for(row=0;row<noYSteps;++row)
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{
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osg::Vec3 v = vRowStart;
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for(unsigned int col=0;col<noXSteps;++col)
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{
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coords->push_back(v);
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v += dx;
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}
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vRowStart+=dy;
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}
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geom->setVertexArray(coords);
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osg::Vec4Array* colors = osgNew osg::Vec4Array(1);
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(*colors)[0].set(1.0f,1.0f,1.0f,1.0f);
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geom->setColorArray(colors);
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geom->setColorBinding(osg::Geometry::BIND_OVERALL);
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for(row=0;row<noYSteps-1;++row)
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{
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osg::DrawElementsUShort* quadstrip = new osg::DrawElementsUShort(osg::Primitive::QUAD_STRIP);
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quadstrip->reserve(noXSteps*2);
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for(unsigned int col=0;col<noXSteps;++col)
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{
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quadstrip->push_back((row+1)*noXSteps+col);
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quadstrip->push_back(row*noXSteps+col);
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}
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geom->addPrimitive(quadstrip);
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}
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// create the normals.
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osgUtil::SmoothingVisitor::smooth(*geom);
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return geom;
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}
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osg::Node* createRoom(osg::Node* loadedModel)
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{
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// default scale for this model.
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osg::BoundingSphere bs(osg::Vec3(0.0f,0.0f,0.0f),1.0f);
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osg::Group* root = new osg::Group;
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if (loadedModel)
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{
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root->addChild(loadedModel);
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bs = loadedModel->getBound();
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}
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// create a bounding box, which we'll use to size the room.
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osg::BoundingBox bb;
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bb.expandBy(bs);
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// create statesets.
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osg::StateSet* rootStateSet = new osg::StateSet;
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root->setStateSet(rootStateSet);
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osg::StateSet* wall = new osg::StateSet;
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wall->setMode(GL_CULL_FACE,osg::StateAttribute::ON);
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osg::StateSet* floor = new osg::StateSet;
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floor->setMode(GL_CULL_FACE,osg::StateAttribute::ON);
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osg::StateSet* roof = new osg::StateSet;
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roof->setMode(GL_CULL_FACE,osg::StateAttribute::ON);
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osg::Geode* geode = new osg::Geode;
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// create front side.
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geode->addDrawable(createWall(bb.corner(0),
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bb.corner(4),
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bb.corner(1),
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wall));
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// right side
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geode->addDrawable(createWall(bb.corner(1),
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bb.corner(5),
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bb.corner(3),
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wall));
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// left side
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geode->addDrawable(createWall(bb.corner(2),
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bb.corner(6),
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bb.corner(0),
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wall));
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// back side
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geode->addDrawable(createWall(bb.corner(3),
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bb.corner(7),
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bb.corner(2),
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wall));
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// floor
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geode->addDrawable(createWall(bb.corner(0),
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bb.corner(1),
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bb.corner(2),
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floor));
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// roof
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geode->addDrawable(createWall(bb.corner(6),
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bb.corner(7),
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bb.corner(4),
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roof));
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root->addChild(geode);
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root->addChild(createLights(bb,rootStateSet));
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return root;
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}
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int main( int argc, char **argv )
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{
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// initialize the GLUT
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glutInit( &argc, argv );
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// create the commandline args.
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std::vector<std::string> commandLine;
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for(int i=1;i<argc;++i) commandLine.push_back(argv[i]);
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// initialize the viewer.
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osgGLUT::Viewer viewer;
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viewer.setWindowTitle(argv[0]);
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// configure the viewer from the commandline arguments, and eat any
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// parameters that have been matched.
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viewer.readCommandLine(commandLine);
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// configure the plugin registry from the commandline arguments, and
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// eat any parameters that have been matched.
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osgDB::readCommandLine(commandLine);
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// load the nodes from the commandline arguments.
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osg::Node* loadedModel = osgDB::readNodeFiles(commandLine);
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// create a room made of foor walls, a floor, a roof, and swinging light fitting.
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osg::Node* rootnode = createRoom(loadedModel);
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// run optimization over the scene graph
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osgUtil::Optimizer optimzer;
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optimzer.optimize(rootnode);
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// add a viewport to the viewer and attach the scene graph.
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viewer.addViewport( rootnode );
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// open the viewer window.
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viewer.open();
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// fire up the event loop.
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viewer.run();
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return 0;
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}
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