diff --git a/Make/makedirdefs b/Make/makedirdefs index a154b565a..d211d8467 100644 --- a/Make/makedirdefs +++ b/Make/makedirdefs @@ -50,13 +50,13 @@ PLUGIN_DIRS += dx # PLUGIN_DIRS += quicktime # comment in if you have libpng installed. -#PLUGIN_DIRS += png +PLUGIN_DIRS += png # comment in if you have libjpeg installed. PLUGIN_DIRS += jpeg # comment in if you have libungif installed. -#PLUGIN_DIRS += gif +PLUGIN_DIRS += gif # comment in if you have libtiff installed. PLUGIN_DIRS += tiff @@ -78,6 +78,7 @@ DEMOS_DIRS = \ osgimpostor\ osgoccluder\ osgparticle\ + osgprerender\ osgreflect\ osgscribe\ osgstereoimage\ diff --git a/VisualStudio/Demos/osgprerender/osgprerender.dsp b/VisualStudio/Demos/osgprerender/osgprerender.dsp new file mode 100644 index 000000000..62822b330 --- /dev/null +++ b/VisualStudio/Demos/osgprerender/osgprerender.dsp @@ -0,0 +1,190 @@ +# Microsoft Developer Studio Project File - Name="Demo osgprerender" - Package Owner=<4> + +# Microsoft Developer Studio Generated Build File, Format Version 6.00 + +# ** DO NOT EDIT ** + + + +# TARGTYPE "Win32 (x86) Console Application" 0x0103 + + + +CFG=Demo osgprerender - Win32 Release + +!MESSAGE This is not a valid makefile. To build this project using NMAKE, + +!MESSAGE use the Export Makefile command and run + +!MESSAGE + +!MESSAGE NMAKE /f "osgprerender.mak". + +!MESSAGE + +!MESSAGE You can specify a configuration when running NMAKE + +!MESSAGE by defining the macro CFG on the command line. For example: + +!MESSAGE + +!MESSAGE NMAKE /f "osgprerender.mak" CFG="Demo osgprerender - Win32 Release" + +!MESSAGE + +!MESSAGE Possible choices for configuration are: + +!MESSAGE + +!MESSAGE "Demo osgprerender - Win32 Release" (based on "Win32 (x86) Console Application") + +!MESSAGE "Demo osgprerender - Win32 Debug" (based on "Win32 (x86) Console Application") + +!MESSAGE + + + +# Begin Project + +# PROP AllowPerConfigDependencies 0 + +# PROP Scc_ProjName "" + +# PROP Scc_LocalPath "" + +CPP=cl.exe + +RSC=rc.exe + + + +!IF "$(CFG)" == "Demo osgprerender - Win32 Release" + + + +# PROP BASE Use_MFC 0 + +# PROP BASE Use_Debug_Libraries 0 + +# PROP BASE Output_Dir "Release" + +# PROP BASE Intermediate_Dir "Release" + +# PROP BASE Target_Dir "" + +# PROP Use_MFC 0 + +# PROP Use_Debug_Libraries 0 + +# PROP Output_Dir "Release" + +# PROP Intermediate_Dir "Release" + +# PROP Ignore_Export_Lib 0 + +# PROP Target_Dir "" + +# ADD BASE CPP /nologo /W3 /GX /O2 /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c + +# ADD CPP /nologo /MD /W3 /GR /GX /O2 /I "../../../include" /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c + +# ADD BASE RSC /l 0x809 /d "NDEBUG" + +# ADD RSC /l 0x809 /d "NDEBUG" + +BSC32=bscmake.exe + +# ADD BASE BSC32 /nologo + +# ADD BSC32 /nologo + +LINK32=link.exe + +# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386 + +# ADD LINK32 /nologo /subsystem:console /pdb:none /machine:I386 /out:"../../../bin/osgprerender.exe" /libpath:"../../../lib" + + + +!ELSEIF "$(CFG)" == "Demo osgprerender - Win32 Debug" + + + +# PROP BASE Use_MFC 0 + +# PROP BASE Use_Debug_Libraries 1 + +# PROP BASE Output_Dir "Debug" + +# PROP BASE Intermediate_Dir "Debug" + +# PROP BASE Target_Dir "" + +# PROP Use_MFC 0 + +# PROP Use_Debug_Libraries 1 + +# PROP Output_Dir "Debug" + +# PROP Intermediate_Dir "Debug" + +# PROP Ignore_Export_Lib 0 + +# PROP Target_Dir "" + +# ADD BASE CPP /nologo /W3 /Gm /GX /Zi /Od /D "WIN32" /D "_DEBUG" /D "_CONSOLE" /D "_MBCS" /YX /FD /c + +# 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 + +# ADD BASE RSC /l 0x809 /d "_DEBUG" + +# ADD RSC /l 0x809 /d "_DEBUG" + +BSC32=bscmake.exe + +# ADD BASE BSC32 /nologo + +# ADD BSC32 /nologo + +LINK32=link.exe + +# 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 + +# ADD LINK32 /nologo /subsystem:console /debug /machine:I386 /nodefaultlib:"libcmt" /out:"../../../bin/osgprerenderd.exe" /pdbtype:sept /libpath:"../../../lib" + +# SUBTRACT LINK32 /incremental:no + + + +!ENDIF + + + +# Begin Target + + + +# Name "Demo osgprerender - Win32 Release" + +# Name "Demo osgprerender - Win32 Debug" + +# Begin Source File + + + +SOURCE=..\..\..\src\Demos\osgprerender\osgprerender.cpp + +# End Source File + +# End Target + +# Begin Group "Resource Files" + + + +# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe" + +# End Group + +# End Project + diff --git a/VisualStudio/VisualStudio.dsw b/VisualStudio/VisualStudio.dsw index 975846464..a2c26cb54 100644 --- a/VisualStudio/VisualStudio.dsw +++ b/VisualStudio/VisualStudio.dsw @@ -888,6 +888,60 @@ Package=<4> +Project: "Demo osgprerender"=.\Demos\osgpreprender\osgprerender.dsp - Package Owner=<4> + + + +Package=<5> + +{{{ + +}}} + + + +Package=<4> + +{{{ + + Begin Project Dependency + + Project_Dep_Name Core osg + + End Project Dependency + + Begin Project Dependency + + Project_Dep_Name Core osgDB + + End Project Dependency + + Begin Project Dependency + + Project_Dep_Name Core osgGA + + End Project Dependency + + Begin Project Dependency + + Project_Dep_Name Core osgGLUT + + End Project Dependency + + Begin Project Dependency + + Project_Dep_Name Core osgUtil + + End Project Dependency + +}}} + + + +############################################################################### + + + Project: "Demo osgreflect"=.\Demos\osgreflect\osgreflect.dsp - Package Owner=<4> diff --git a/src/Demos/osgprerender/Makefile b/src/Demos/osgprerender/Makefile new file mode 100644 index 000000000..a53aa262c --- /dev/null +++ b/src/Demos/osgprerender/Makefile @@ -0,0 +1,15 @@ +TOPDIR = ../../.. +include $(TOPDIR)/Make/makedefs + +CXXFILES =\ + osgprerender.cpp\ + +LIBS += $(OSG_LIBS) $(GLUT_LIB) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS) + +INSTFILES = \ + $(CXXFILES)\ + Makefile.inst=Makefile + +EXEC = osgreflect + +include $(TOPDIR)/Make/makerules diff --git a/src/Demos/osgprerender/Makefile.inst b/src/Demos/osgprerender/Makefile.inst new file mode 100644 index 000000000..9fd7cfbff --- /dev/null +++ b/src/Demos/osgprerender/Makefile.inst @@ -0,0 +1,11 @@ +TOPDIR = ../.. +include $(TOPDIR)/Make/makedefs + +CXXFILES =\ + osgprerender.cpp\ + +LIBS += $(OSG_LIBS) $(GLUT_LIB) $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS) + +EXEC = osgreflect + +include $(TOPDIR)/Make/makerules diff --git a/src/Demos/osgprerender/osgprerender.cpp b/src/Demos/osgprerender/osgprerender.cpp new file mode 100644 index 000000000..8769cb70e --- /dev/null +++ b/src/Demos/osgprerender/osgprerender.cpp @@ -0,0 +1,382 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include +#include + +#include +#include + + + +// +// A simple demo demonstrating planer reflections using multiple renderings +// of a subgraph, overriding of state attribures and use of the stencil buffer. +// +// The multipass system implemented here is a variation if Mark Kilgard's +// paper "Improving Shadows and Reflections via the Stencil Buffer" which +// can be found on the developer parts of the NVidia web site. +// +// The variations comes from the fact that the mirrors stencil values +// are done on the first pass, rather than the second as in Mark's paper. +// The second pass is now Mark's first pass - drawing the unreflected scene, +// but also unsets the stencil buffer. This variation stops the unreflected +// world poking through the mirror to be seen in the final rendering and +// also obscures the world correctly when on the reverse side of the mirror. +// Although there is still some unresolved issue with the clip plane needing +// to be flipped when looking at the reverse side of the mirror. Niether +// of these issues are mentioned in the Mark's paper, but trip us up when +// we apply them. + + +osg::StateSet* createMirrorTexturedState(const std::string& filename) +{ + osg::StateSet* dstate = new osg::StateSet; + dstate->setMode(GL_CULL_FACE,osg::StateAttribute::OFF); + + // set up the texture. + osg::Image* image = osgDB::readImageFile(filename.c_str()); + if (image) + { + osg::Texture* texture = new osg::Texture; + texture->setImage(image); + dstate->setAttributeAndModes(texture,osg::StateAttribute::ON); + } + + return dstate; +} + + +osg::Drawable* createMirrorSurface(float xMin,float xMax,float yMin,float yMax,float z) +{ + + // set up the drawstate. + + // set up the Geometry. + osg::Geometry* geom = new osg::Geometry; + + osg::Vec3Array* coords = new osg::Vec3Array(4); + (*coords)[0].set(xMin,yMax,z); + (*coords)[1].set(xMin,yMin,z); + (*coords)[2].set(xMax,yMin,z); + (*coords)[3].set(xMax,yMax,z); + geom->setVertexArray(coords); + + osg::Vec3Array* norms = new osg::Vec3Array(1); + (*norms)[0].set(0.0f,0.0f,1.0f); + geom->setNormalArray(norms); + geom->setNormalBinding(osg::Geometry::BIND_OVERALL); + + osg::Vec2Array* tcoords = new osg::Vec2Array(4); + (*tcoords)[0].set(0.0f,1.0f); + (*tcoords)[1].set(0.0f,0.0f); + (*tcoords)[2].set(1.0f,0.0f); + (*tcoords)[3].set(1.0f,1.0f); + geom->setTexCoordArray(0,tcoords); + + osg::Vec4Array* colours = new osg::Vec4Array(1); + (*colours)[0].set(1.0f,1.0f,1.0,1.0f); + geom->setColorArray(colours); + geom->setColorBinding(osg::Geometry::BIND_OVERALL); + + geom->addPrimitive(osgNew osg::DrawArrays(osg::Primitive::QUADS,0,4)); + + return geom; +} + +void write_usage(std::ostream& out,const std::string& name) +{ + out << std::endl; + out <<"usage:"<< std::endl; + out <<" "< commandLine; + for(int i=1;iaddChild(loadedModel); + + // calculate where to place the mirror according to the + // loaded models bounding sphere. + const osg::BoundingSphere& bs = loadedModelTransform->getBound(); + + float width_factor = 1.5; + float height_factor = 0.3; + + float xMin = bs.center().x()-bs.radius()*width_factor; + float xMax = bs.center().x()+bs.radius()*width_factor; + float yMin = bs.center().y()-bs.radius()*width_factor; + float yMax = bs.center().y()+bs.radius()*width_factor; + + float z = bs.center().z()-bs.radius()*height_factor; + + + // create a textured, transparent node at the appropriate place. + osg::Drawable* mirror = createMirrorSurface(xMin,xMax,yMin,yMax,z); + + + osg::Group* rootNode = new osg::Group; + + // make sure that the global color mask exists. + osg::ColorMask* rootColorMask = new osg::ColorMask; + rootColorMask->setMask(true,true,true,true); + + // set up depth to be inherited by the rest of the scene unless + // overrideen. this is overridden in bin 3. + osg::Depth* rootDepth = new osg::Depth; + rootDepth->setFunction(osg::Depth::LESS); + rootDepth->setRange(0.0,1.0); + + osg::StateSet* rootStateSet = new osg::StateSet(); + rootStateSet->setAttribute(rootColorMask); + rootStateSet->setAttribute(rootDepth); + + rootNode->setStateSet(rootStateSet); + + + // bin1 - set up the stencil values and depth for mirror. + { + + // set up the stencil ops so that the stencil buffer get set at + // the mirror plane + osg::Stencil* stencil = new osg::Stencil; + stencil->setFunction(osg::Stencil::ALWAYS,1,~0); + stencil->setOperation(osg::Stencil::KEEP, osg::Stencil::KEEP, osg::Stencil::REPLACE); + + // switch off the writing to the color bit planes. + osg::ColorMask* colorMask = new osg::ColorMask; + colorMask->setMask(false,false,false,false); + + osg::StateSet* statesetBin1 = new osg::StateSet(); + statesetBin1->setRenderBinDetails(1,"RenderBin"); + statesetBin1->setMode(GL_CULL_FACE,osg::StateAttribute::OFF); + statesetBin1->setAttributeAndModes(stencil,osg::StateAttribute::ON); + statesetBin1->setAttribute(colorMask); + + // set up the mirror geode. + osg::Geode* geode = new osg::Geode; + geode->addDrawable(mirror); + geode->setStateSet(statesetBin1); + + rootNode->addChild(geode); + + } + + // bin one - draw scene without mirror or reflection, unset + // stencil values where scene is infront of mirror and hence + // occludes the mirror. + { + osg::Stencil* stencil = new osg::Stencil; + stencil->setFunction(osg::Stencil::ALWAYS,0,~0); + stencil->setOperation(osg::Stencil::KEEP, osg::Stencil::KEEP, osg::Stencil::REPLACE); + + osg::StateSet* statesetBin2 = new osg::StateSet(); + statesetBin2->setRenderBinDetails(2,"RenderBin"); + statesetBin2->setAttributeAndModes(stencil,osg::StateAttribute::ON); + + + osg::Group* groupBin2 = new osg::Group(); + groupBin2->setStateSet(statesetBin2); + groupBin2->addChild(loadedModelTransform); + + rootNode->addChild(groupBin2); + } + + // bin3 - set up the depth to the furthest depth value + { + + // set up the stencil ops so that only operator on this mirrors stencil value. + osg::Stencil* stencil = new osg::Stencil; + stencil->setFunction(osg::Stencil::EQUAL,1,~0); + stencil->setOperation(osg::Stencil::KEEP, osg::Stencil::KEEP, osg::Stencil::KEEP); + + // switch off the writing to the color bit planes. + osg::ColorMask* colorMask = new osg::ColorMask; + colorMask->setMask(false,false,false,false); + + // set up depth so all writing to depth goes to maximum depth. + osg::Depth* depth = new osg::Depth; + depth->setFunction(osg::Depth::ALWAYS); + depth->setRange(1.0,1.0); + + osg::StateSet* statesetBin3 = new osg::StateSet(); + statesetBin3->setRenderBinDetails(3,"RenderBin"); + statesetBin3->setMode(GL_CULL_FACE,osg::StateAttribute::OFF); + statesetBin3->setAttributeAndModes(stencil,osg::StateAttribute::ON); + statesetBin3->setAttribute(colorMask); + statesetBin3->setAttribute(depth); + + // set up the mirror geode. + osg::Geode* geode = new osg::Geode; + geode->addDrawable(mirror); + geode->setStateSet(statesetBin3); + + rootNode->addChild(geode); + + } + + // bin4 - draw the reflection. + { + + // now create the 'reflection' of the loaded model by applying + // create a Transform which flips the loaded model about the z axis + // relative to the mirror node, the loadedModel is added to the + // Transform so now appears twice in the scene, but is shared so there + // is negligable memory overhead. Also use an osg::StateSet + // attached to the Transform to override the face culling on the subgraph + // to prevert an 'inside' out view of the reflected model. + // set up the stencil ops so that only operator on this mirrors stencil value. + + osg::Stencil* stencil = new osg::Stencil; + stencil->setFunction(osg::Stencil::EQUAL,1,~0); + stencil->setOperation(osg::Stencil::KEEP, osg::Stencil::KEEP, osg::Stencil::KEEP); + + // this clip plane removes any of the scene which when mirror would + // poke through the mirror. However, this clip plane should really + // flip sides once the eye point goes to the back of the mirror... + osg::ClipPlane* clipplane = new osg::ClipPlane; + clipplane->setClipPlane(osg::Vec4(0.0f,0.0f,-1.0f,z)); + clipplane->setClipPlaneNum(0); + + osg::StateSet* dstate = new osg::StateSet; + dstate->setRenderBinDetails(4,"RenderBin"); + dstate->setMode(GL_CULL_FACE,osg::StateAttribute::OVERRIDE_OFF); + dstate->setAttributeAndModes(stencil,osg::StateAttribute::ON); + dstate->setAttributeAndModes(clipplane,osg::StateAttribute::ON); + + osg::Transform* dcs = new osg::Transform; + dcs->setStateSet(dstate); + dcs->preMult(osg::Matrix::translate(0.0f,0.0f,-z)* + osg::Matrix::scale(1.0f,1.0f,-1.0f)* + osg::Matrix::translate(0.0f,0.0f,z)); + + dcs->addChild(loadedModelTransform); + + rootNode->addChild(dcs); + + } + + + // bin5 - draw the textured mirror and blend it with the reflection. + { + + // set up depth so all writing to depth goes to maximum depth. + osg::Depth* depth = new osg::Depth; + depth->setFunction(osg::Depth::ALWAYS); + + osg::Stencil* stencil = new osg::Stencil; + stencil->setFunction(osg::Stencil::EQUAL,1,~0); + stencil->setOperation(osg::Stencil::KEEP, osg::Stencil::KEEP, osg::Stencil::ZERO); + + // set up additive blending. + osg::Transparency* trans = new osg::Transparency; + trans->setFunction(osg::Transparency::ONE,osg::Transparency::ONE); + + osg::StateSet* statesetBin5 = createMirrorTexturedState("Images/tank.rgb"); + + statesetBin5->setRenderBinDetails(5,"RenderBin"); + statesetBin5->setMode(GL_CULL_FACE,osg::StateAttribute::OFF); + statesetBin5->setAttributeAndModes(stencil,osg::StateAttribute::ON); + statesetBin5->setAttributeAndModes(trans,osg::StateAttribute::ON); + statesetBin5->setAttribute(depth); + + // set up the mirror geode. + osg::Geode* geode = new osg::Geode; + geode->addDrawable(mirror); + geode->setStateSet(statesetBin5); + + rootNode->addChild(geode); + + } + + // add model to the viewer. + viewer.addViewport( rootNode ); + + osg::NodeCallback* nc = new osgUtil::TransformCallback(loadedModelTransform->getBound().center(),osg::Vec3(0.0f,0.0f,1.0f),osg::inDegrees(45.0f)); + loadedModelTransform->setAppCallback(nc); + + // register trackball, flight and drive. + viewer.registerCameraManipulator(new osgGA::TrackballManipulator); + viewer.registerCameraManipulator(new osgGA::FlightManipulator); + viewer.registerCameraManipulator(new osgGA::DriveManipulator); + + viewer.open(); + + viewer.run(); + + return 0; +}