Added osgtexturerectangle example from Ulrich Hertlein.
This commit is contained in:
Robert Osfield
parent
094e0f2e48
commit
709dafe15b
@ -47,6 +47,8 @@ PLUGIN_DIRS = \
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txp\
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zip
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# 3dc\
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# comment in if you have Performer installed.
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# PLUGIN_DIRS += pfb
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@ -135,6 +137,7 @@ EXAMPLE_DIRS = \
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osgtexture1D\
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osgtexture2D\
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osgtexture3D\
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osgtexturerectangle\
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osgunittests\
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osgwindows\
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osgversion\
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@ -1029,6 +1029,36 @@ Package=<4>
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###############################################################################
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Project: "Example osgtexturerectangle"=.\examples\osgtexturerectangle\osgtexturerectangle.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 osgProducer
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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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Begin Project Dependency
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Project_Dep_Name Core osgText
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End Project Dependency
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}}}
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###############################################################################
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Project: "Example osgtexture3D"=.\examples\osgtexture3D\osgtexture3D.dsp - Package Owner=<4>
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Package=<5>
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@ -0,0 +1,190 @@
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# Microsoft Developer Studio Project File - Name="Example osgtexturerectangle" - 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=Example osgtexturerectangle - 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 "osgtexturerectangle.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 "osgtexturerectangle.mak" CFG="Example osgtexturerectangle - 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 "Example osgtexturerectangle - Win32 Release" (based on "Win32 (x86) Console Application")
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!MESSAGE "Example osgtexturerectangle - 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)" == "Example osgtexturerectangle - 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/osgtexturerectangle.exe" /libpath:"../../../lib"
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!ELSEIF "$(CFG)" == "Example osgtexturerectangle - 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 /nologo /subsystem:console /debug /machine:I386 /nodefaultlib:"libcmt" /out:"../../../bin/osgtexturerectangled.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 "Example osgtexturerectangle - Win32 Release"
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# Name "Example osgtexturerectangle - Win32 Debug"
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# Begin Source File
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SOURCE=..\..\..\examples\osgtexturerectangle\osgtexturerectangle.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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18
examples/osgtexturerectangle/GNUmakefile
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18
examples/osgtexturerectangle/GNUmakefile
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@ -0,0 +1,18 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osgtexturerectangle.cpp\
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LIBS += -losgProducer -lProducer -losgText -losgGA -losgDB -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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INSTFILES = \
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$(CXXFILES)\
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GNUmakefile.inst=GNUmakefile
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EXEC = osgtexturerectangle
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INC += $(PRODUCER_INCLUDE_DIR) -I/usr/X11R6/include
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LDFLAGS += $(PRODUCER_LIB_DIR)
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include $(TOPDIR)/Make/makerules
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14
examples/osgtexturerectangle/GNUmakefile.inst
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14
examples/osgtexturerectangle/GNUmakefile.inst
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@ -0,0 +1,14 @@
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TOPDIR = ../..
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include $(TOPDIR)/Make/makedefs
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CXXFILES =\
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osgtexturerectangle.cpp\
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LIBS += -losgProducer -lProducer -losgDB -losgText -losgUtil -losg $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS)
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EXEC = osgtexturerectangle
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INC += $(PRODUCER_INCLUDE_DIR) -I/usr/X11R6/include
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LDFLAGS += $(PRODUCER_LIB_DIR)
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include $(TOPDIR)/Make/makerules
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301
examples/osgtexturerectangle/osgtexturerectangle.cpp
Normal file
301
examples/osgtexturerectangle/osgtexturerectangle.cpp
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// -*-c++-*-
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/*
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* demonstrates usage of osg::TextureRectangle.
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*
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* Actually there isn't much difference to the rest of the osg::Texture*
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* bunch only this:
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* - texture coordinates for texture rectangles must be in image
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* coordinates instead of normalized coordinates (0-1). So for a 500x250
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* image the coordinates for the entire image would be
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* 0,250 0,0 500,0 500,250 instead of 0,1 0,0 1,0 1,1
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* - only the following wrap modes are supported (but not enforced)
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* CLAMP, CLAMP_TO_EDGE, CLAMP_TO_BORDER
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* - a border is not supported
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* - mipmap is not supported
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*/
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#include <osg/Notify>
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#include <osg/TextureRectangle>
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#include <osg/Geometry>
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#include <osg/Geode>
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#include <osg/Projection>
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#include <osg/MatrixTransform>
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#include <osgText/Text>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include <osgProducer/Viewer>
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/**********************************************************************
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*
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* Texture pan animation callback
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*
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**********************************************************************/
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class TexturePanCallback : public osg::NodeCallback
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{
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public:
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TexturePanCallback(osg::Geometry* geom, osg::Image* img,
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double delay = 0.05) :
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_geom(geom),
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_img(img),
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_phaseS(35.0f),
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_phaseT(18.0f),
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_phaseScale(5.0f),
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_delay(delay),
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_prevTime(0.0)
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{
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}
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virtual void operator()(osg::Node*, osg::NodeVisitor* nv)
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{
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if (!_geom || !_img)
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return;
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if (nv->getFrameStamp()) {
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double currTime = nv->getFrameStamp()->getReferenceTime();
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if (currTime - _prevTime > _delay) {
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float rad = osg::DegreesToRadians(currTime);
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// zoom scale (0.2 - 1.0)
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float scale = sin(rad * _phaseScale) * 0.4f + 0.6f;
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float scaleR = 1.0f - scale;
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// calculate new texture coordinates
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float s, t;
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s = ((sin(rad * _phaseS) + 1) * 0.5f) * (_img->s() * scaleR);
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t = ((sin(rad * _phaseT) + 1) * 0.5f) * (_img->t() * scaleR);
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// set new texture coordinate array
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osg::Vec2Array* texcoords = (osg::Vec2Array*) _geom->getTexCoordArray(0);
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float w = _img->s() * scale, h = _img->t() * scale;
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(*texcoords)[0].set(s, t+h);
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(*texcoords)[1].set(s, t);
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(*texcoords)[2].set(s+w, t);
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(*texcoords)[3].set(s+w, t+h);
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// record time
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_prevTime = currTime;
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}
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}
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}
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private:
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osg::Geometry* _geom;
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osg::Image* _img;
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float _phaseS, _phaseT, _phaseScale;
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double _delay;
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double _prevTime;
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};
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osg::Node* createRectangle(osg::BoundingBox& bb,
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const std::string& filename)
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{
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osg::Vec3 top_left(bb.xMin(),bb.yMax(),bb.zMax());
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osg::Vec3 bottom_left(bb.xMin(),bb.yMax(),bb.zMin());
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osg::Vec3 bottom_right(bb.xMax(),bb.yMax(),bb.zMin());
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osg::Vec3 top_right(bb.xMax(),bb.yMax(),bb.zMax());
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// create geometry
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osg::Geometry* geom = new osg::Geometry;
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osg::Vec3Array* vertices = new osg::Vec3Array(4);
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(*vertices)[0] = top_left;
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(*vertices)[1] = bottom_left;
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(*vertices)[2] = bottom_right;
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(*vertices)[3] = top_right;
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geom->setVertexArray(vertices);
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osg::Vec2Array* texcoords = new osg::Vec2Array(4);
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(*texcoords)[0].set(0.0f, 0.0f);
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(*texcoords)[1].set(1.0f, 0.0f);
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(*texcoords)[2].set(1.0f, 1.0f);
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(*texcoords)[3].set(0.0f, 1.0f);
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geom->setTexCoordArray(0,texcoords);
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osg::Vec3Array* normals = new osg::Vec3Array(1);
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(*normals)[0].set(-1.0f,0.0f,0.0f);
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geom->setNormalArray(normals);
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geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
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osg::Vec4Array* colors = new 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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geom->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, 4));
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// disable display list so our modified tex coordinates show up
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geom->setUseDisplayList(false);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geom);
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// setup texture
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osg::TextureRectangle* texture = new osg::TextureRectangle;
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texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
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texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP);
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// load image
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osg::Image* img = osgDB::readImageFile(filename);
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texture->setImage(img);
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osg::StateSet* state = geom->getOrCreateStateSet();
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state->setTextureAttributeAndModes(0, texture, osg::StateAttribute::ON);
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// turn off lighting
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state->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
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// install 'update' callback
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geode->setUpdateCallback(new TexturePanCallback(geom, img));
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return geode;
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}
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osg::Geode* createText(const std::string& str,
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const osg::Vec3& pos)
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{
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static std::string font("fonts/arial.ttf");
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osg::Geode* geode = new osg::Geode;
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osgText::Text* text = new osgText::Text;
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geode->addDrawable(text);
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text->setFont(font);
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text->setPosition(pos);
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text->setText(str);
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return geode;
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}
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osg::Node* createHUD()
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{
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osg::Group* group = new osg::Group;
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// turn off lighting and depth test
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osg::StateSet* state = group->getOrCreateStateSet();
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state->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
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state->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
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// add text
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osg::Vec3 pos(150.0f, 800.0f, 0.0f);
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const osg::Vec3 delta(0.0f, -80.0f, 0.0f);
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const char* text[] = {
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"TextureRectangle Mini-HOWTO",
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"- essentially behaves like Texture2D, *except* that:",
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"- tex coords must be non-normalized (0..width) instead of (0..1)",
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"- wrap mode must be CLAMP, CLAMP_TO_EDGE, or CLAMP_TO_BORDER",
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"- repeating wrap modes are *not* supported",
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"- texture border is *not* supported",
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"- texture mipmaps are *not* supported",
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NULL
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};
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const char** t = text;
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while (*t) {
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group->addChild(createText(*t++, pos));
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pos += delta;
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}
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// create HUD
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osg::MatrixTransform* modelview_abs = new osg::MatrixTransform;
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modelview_abs->setReferenceFrame(osg::Transform::RELATIVE_TO_ABSOLUTE);
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modelview_abs->setMatrix(osg::Matrix::identity());
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modelview_abs->addChild(group);
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osg::Projection* projection = new osg::Projection;
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projection->setMatrix(osg::Matrix::ortho2D(0,1280,0,1024));
|
||||
projection->addChild(modelview_abs);
|
||||
|
||||
return projection;
|
||||
}
|
||||
|
||||
|
||||
osg::Node* createModel(const std::string& filename)
|
||||
{
|
||||
osg::Group* root = new osg::Group;
|
||||
|
||||
osg::BoundingBox bb(0.0f,0.0f,0.0f,1.0f,1.0f,1.0f);
|
||||
root->addChild(createRectangle(bb, filename)); // XXX
|
||||
|
||||
root->addChild(createHUD());
|
||||
|
||||
return root;
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char** argv)
|
||||
{
|
||||
// use an ArgumentParser object to manage the program arguments.
|
||||
osg::ArgumentParser arguments(&argc,argv);
|
||||
|
||||
// set up the usage document, in case we need to print out how to use this program.
|
||||
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is a demo which demonstrates use of osg::TextureRectangle.");
|
||||
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] <image> ...");
|
||||
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
||||
|
||||
// construct the viewer.
|
||||
osgProducer::Viewer viewer(arguments);
|
||||
|
||||
// set up the value with sensible default event handlers.
|
||||
viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
|
||||
|
||||
// get details on keyboard and mouse bindings used by the viewer.
|
||||
viewer.getUsage(*arguments.getApplicationUsage());
|
||||
|
||||
// if user request help write it out to cout.
|
||||
if (arguments.read("-h") || arguments.read("--help"))
|
||||
{
|
||||
arguments.getApplicationUsage()->write(std::cout);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// any option left unread are converted into errors to write out later.
|
||||
arguments.reportRemainingOptionsAsUnrecognized();
|
||||
|
||||
// report any errors if they have occured when parsing the program aguments.
|
||||
if (arguments.errors())
|
||||
{
|
||||
arguments.writeErrorMessages(std::cout);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// create a model from the images.
|
||||
osg::Node* rootNode = createModel((arguments.argc() > 1 ? arguments[1] : "lz.rgb"));
|
||||
|
||||
// add model to viewer.
|
||||
viewer.setSceneData(rootNode);
|
||||
|
||||
// create the windows and run the threads.
|
||||
viewer.realize();
|
||||
|
||||
while (!viewer.done())
|
||||
{
|
||||
// wait for all cull and draw threads to complete.
|
||||
viewer.sync();
|
||||
|
||||
// update the scene by traversing it with the the update visitor which will
|
||||
// call all node update callbacks and animations.
|
||||
viewer.update();
|
||||
|
||||
// fire off the cull and draw traversals of the scene.
|
||||
viewer.frame();
|
||||
}
|
||||
|
||||
// wait for all cull and draw threads to complete before exit.
|
||||
viewer.sync();
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -103,8 +103,11 @@ osgtext
|
||||
echo osgtexture1D cow.osg
|
||||
osgtexture1D cow.osg
|
||||
|
||||
echo osgtexture2D Images/reflect.rgb Images/lz.rgb
|
||||
osgtexture2D Images/reflect.rgb Images/lz.rgb
|
||||
echo osgtexture2D
|
||||
osgtexture2D
|
||||
|
||||
echo osgtexturerectangle
|
||||
osgtexturerectangle
|
||||
|
||||
echo osgtexture3D
|
||||
osgtexture3D
|
||||
|
||||
Loading…
Reference in New Issue
Block a user