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Working spot and point lights

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Use 8bit normals if /sim/rendering/no-16bit-buffer is set to true. May be usefull for old card returning 0x8cda at fbo setup time
White/gray specular material
s/Tabs/Spaces/
This commit is contained in:
Frederic Bouvier 2012-03-31 20:16:36 +02:00
parent 47a910bccc
commit 2416f9f8d8
2 changed files with 82 additions and 77 deletions
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7
src/Main/CameraGroup.cxx
View file

@ -183,6 +183,8 @@ namespace flightgear
{
void CameraInfo::updateCameras()
{
bufferSize->set( osg::Vec2f( width, height ) );
for (CameraMap::iterator ii = cameras.begin(); ii != cameras.end(); ++ii ) {
float f = ii->second.scaleFactor;
if ( f == 0.0f ) continue;
@ -202,6 +204,8 @@ void CameraInfo::updateCameras()
void CameraInfo::resized(double w, double h)
{
bufferSize->set( osg::Vec2f( w, h ) );
for (RenderBufferMap::iterator ii = buffers.begin(); ii != buffers.end(); ++ii) {
float s = ii->second.scaleFactor;
if ( s == 0.0f ) continue;
@ -1052,8 +1056,7 @@ void CameraGroup::setCameraCullMasks(Node::NodeMask nm)
continue;
osg::ref_ptr<osg::Camera> farCamera = info->getCamera(FAR_CAMERA);
osg::Camera* camera = info->getCamera( MAIN_CAMERA );
if ( camera == 0 )
camera = info->getCamera( GEOMETRY_CAMERA );
if (camera == 0) continue;
if (farCamera.valid() && farCamera->getNodeMask() != 0) {
camera->setCullMask(nm & ~simgear::BACKGROUND_BIT);
camera->setCullMaskLeft(nm & ~simgear::BACKGROUND_BIT);

152
src/Main/renderer.cxx
View file

@ -692,10 +692,9 @@ osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, G
if (shadowComparison) {
tex->setShadowTextureMode(osg::Texture2D::LUMINANCE);
tex->setBorderColor(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
} else {
tex->setSourceFormat(sourceFormat);
tex->setSourceType(sourceType);
}
tex->setSourceFormat(sourceFormat);
tex->setSourceType(sourceType);
tex->setFilter( osg::Texture2D::MIN_FILTER, osg::Texture2D::LINEAR );
tex->setFilter( osg::Texture2D::MAG_FILTER, osg::Texture2D::LINEAR );
tex->setWrap( osg::Texture::WRAP_S, wrapMode );
@ -703,47 +702,51 @@ osg::Texture2D* buildDeferredBuffer(GLint internalFormat, GLenum sourceFormat, G
return tex;
}
void buildDeferredBuffers( flightgear::CameraInfo* info, int shadowMapSize )
void buildDeferredBuffers( flightgear::CameraInfo* info, int shadowMapSize, bool normal16 )
{
info->addBuffer(flightgear::RenderBufferInfo::DEPTH_BUFFER, buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::NORMAL_BUFFER, buildDeferredBuffer( 0x822C /*GL_RG16*/, 0x8227 /*GL_RG*/, GL_UNSIGNED_SHORT, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::DIFFUSE_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::LIGHTING_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::SHADOW_BUFFER, buildDeferredBuffer( GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER, true), 0.0f );
if (normal16)
info->addBuffer(flightgear::RenderBufferInfo::NORMAL_BUFFER, buildDeferredBuffer( 0x822C /*GL_RG16*/, 0x8227 /*GL_RG*/, GL_UNSIGNED_SHORT, osg::Texture::CLAMP_TO_BORDER) );
else
info->addBuffer(flightgear::RenderBufferInfo::NORMAL_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_SHORT, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::DIFFUSE_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::LIGHTING_BUFFER, buildDeferredBuffer( GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, osg::Texture::CLAMP_TO_BORDER) );
info->addBuffer(flightgear::RenderBufferInfo::SHADOW_BUFFER, buildDeferredBuffer( GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT, GL_FLOAT, osg::Texture::CLAMP_TO_BORDER, true), 0.0f );
info->getBuffer(RenderBufferInfo::SHADOW_BUFFER)->setTextureSize(shadowMapSize,shadowMapSize);
}
void attachBufferToCamera( flightgear::CameraInfo* info, osg::Camera* camera, osg::Camera::BufferComponent c, flightgear::CameraKind ck, flightgear::RenderBufferInfo::Kind bk )
{
camera->attach( c, info->getBuffer(bk) );
info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
camera->attach( c, info->getBuffer(bk) );
info->getRenderStageInfo(ck).buffers.insert( std::make_pair( c, bk ) );
}
osg::Camera* FGRenderer::buildDeferredGeometryCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc )
{
osg::Camera* camera = new osg::Camera;
info->addCamera(flightgear::GEOMETRY_CAMERA, camera );
osg::Camera* camera = new osg::Camera;
info->addCamera(flightgear::GEOMETRY_CAMERA, camera );
camera->setCullMask( ~simgear::MODELLIGHT_BIT );
camera->setName( "GeometryCamera" );
camera->setGraphicsContext( gc );
camera->setCullMask( ~simgear::MODELLIGHT_BIT );
camera->setName( "GeometryCamera" );
camera->setGraphicsContext( gc );
camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::GEOMETRY_CAMERA, info ) );
camera->setClearMask( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
camera->setClearColor( osg::Vec4( 0., 0., 0., 0. ) );
camera->setClearDepth( 1.0 );
camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
camera->setViewport( new osg::Viewport );
attachBufferToCamera( info, camera, osg::Camera::DEPTH_BUFFER, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::DEPTH_BUFFER );
camera->setViewport( new osg::Viewport );
attachBufferToCamera( info, camera, osg::Camera::DEPTH_BUFFER, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::DEPTH_BUFFER );
attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER0, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::NORMAL_BUFFER );
attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER1, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::DIFFUSE_BUFFER );
attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER2, flightgear::GEOMETRY_CAMERA, flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER );
camera->setDrawBuffer(GL_FRONT);
camera->setReadBuffer(GL_FRONT);
camera->addChild( mDeferredRealRoot.get() );
camera->addChild( mDeferredRealRoot.get() );
return camera;
return camera;
}
static void setShadowCascadeStateSet( osg::Camera* cam ) {
@ -787,7 +790,7 @@ static osg::Camera* createShadowCascadeCamera( int no, int cascadeSize ) {
osg::Camera* FGRenderer::buildDeferredShadowCamera( flightgear::CameraInfo* info, osg::GraphicsContext* gc )
{
osg::Camera* mainShadowCamera = new osg::Camera;
info->addCamera(flightgear::SHADOW_CAMERA, mainShadowCamera, 0.0f );
info->addCamera(flightgear::SHADOW_CAMERA, mainShadowCamera, 0.0f );
mainShadowCamera->setName( "ShadowCamera" );
mainShadowCamera->setClearMask( GL_DEPTH_BUFFER_BIT );
@ -921,8 +924,8 @@ void FGRenderer::updateShadowMapSize(int mapSize)
}
int cascadeSize = mapSize / 2;
Group* grp = camera->getChild(0)->asGroup();
for (int i = 0; i < 4; ++i ) {
Group* grp = camera->getChild(0)->asGroup();
for (int i = 0; i < 4; ++i ) {
Camera* cascadeCam = static_cast<Camera*>( grp->getChild(i) );
cascadeCam->setViewport( int( i / 2 ) * cascadeSize, (i & 1) * cascadeSize, cascadeSize, cascadeSize );
}
@ -950,9 +953,9 @@ const char *ambient_frag_src = ""
"uniform vec4 fg_SunAmbientColor;\n"
"void main() {\n"
" vec2 coords = gl_TexCoord[0].xy;\n"
" float initialized = texture2D( spec_emis_tex, coords ).a;\n"
" if ( initialized < 0.1 )\n"
" discard;\n"
" float initialized = texture2D( spec_emis_tex, coords ).a;\n"
" if ( initialized < 0.1 )\n"
" discard;\n"
" vec3 tcolor = texture2D( color_tex, coords ).rgb;\n"
// " float ao = texture2D( ao_tex, coords ).r;\n"
// " gl_FragColor = vec4(tcolor*fg_SunAmbientColor.rgb*ao, 1.0);\n"
@ -1020,11 +1023,11 @@ const char *sunlight_frag_src = ""
"void main() {\n"
" vec2 coords = gl_TexCoord[0].xy;\n"
" vec4 spec_emis = texture2D( spec_emis_tex, coords );\n"
" if ( spec_emis.a < 0.1 )\n"
" discard;\n"
" if ( spec_emis.a < 0.1 )\n"
" discard;\n"
" vec3 normal;\n"
" normal.xy = texture2D( normal_tex, coords ).rg * 2.0 - vec2(1.0,1.0);\n"
" normal.z = sqrt( 1.0 - dot( normal.xy, normal.xy ) );\n"
" normal.z = sqrt( 1.0 - dot( normal.xy, normal.xy ) );\n"
" float len = length(normal);\n"
" normal /= len;\n"
" vec3 viewDir = normalize(ray);\n"
@ -1035,7 +1038,7 @@ const char *sunlight_frag_src = ""
" vec4 tint;\n"
#if 0
" float shadow = 1.0;\n"
" float shadow = 1.0;\n"
#elif 1
" float shadow = shadow2DProj( shadow_tex, DynamicShadow( vec4( pos, 1.0 ), tint ) ).r;\n"
#else
@ -1049,15 +1052,15 @@ const char *sunlight_frag_src = ""
#endif
" vec3 lightDir = (fg_ViewMatrix * vec4( fg_SunDirection, 0.0 )).xyz;\n"
" lightDir = normalize( lightDir );\n"
" vec3 color = texture2D( color_tex, coords ).rgb;\n"
" vec3 color = texture2D( color_tex, coords ).rgb;\n"
" vec3 Idiff = clamp( dot( lightDir, normal ), 0.0, 1.0 ) * color * fg_SunDiffuseColor.rgb;\n"
" vec3 halfDir = lightDir - viewDir;\n"
" len = length( halfDir );\n"
" vec3 Ispec = vec3(0.0);\n"
" vec3 Iemis = spec_emis.z * color;\n"
" vec3 Iemis = spec_emis.z * color;\n"
" if (len > 0.0001) {\n"
" halfDir /= len;\n"
" Ispec = pow( clamp( dot( halfDir, normal ), 0.0, 1.0 ), spec_emis.y * 255.0 ) * spec_emis.x * color * fg_SunSpecularColor.rgb;\n"
" Ispec = pow( clamp( dot( halfDir, normal ), 0.0, 1.0 ), spec_emis.y * 255.0 ) * spec_emis.x * fg_SunSpecularColor.rgb;\n"
" }\n"
" gl_FragColor = vec4(mix(vec3(0.0), Idiff + Ispec, shadow) + Iemis, 1.0);\n"
// " gl_FragColor = mix(tint, vec4(mix(vec3(0.0), Idiff + Ispec, shadow) + Iemis, 1.0), 0.92);\n"
@ -1085,12 +1088,12 @@ const char *fog_frag_src = ""
"varying vec3 ray;\n"
"void main() {\n"
" vec2 coords = gl_TexCoord[0].xy;\n"
" float initialized = texture2D( spec_emis_tex, coords ).a;\n"
" if ( initialized < 0.1 )\n"
" discard;\n"
" float initialized = texture2D( spec_emis_tex, coords ).a;\n"
" if ( initialized < 0.1 )\n"
" discard;\n"
" vec3 normal;\n"
" normal.xy = texture2D( normal_tex, coords ).rg * 2.0 - vec2(1.0,1.0);\n"
" normal.z = sqrt( 1.0 - dot( normal.xy, normal.xy ) );\n"
" normal.xy = texture2D( normal_tex, coords ).rg * 2.0 - vec2(1.0,1.0);\n"
" normal.z = sqrt( 1.0 - dot( normal.xy, normal.xy ) );\n"
" float len = length(normal);\n"
" normal /= len;\n"
" vec3 viewDir = normalize(ray);\n"
@ -1111,7 +1114,7 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* in
{
SG_LOG( SG_VIEW, SG_ALERT, "Harmless warning messages on effects not found beyond this point" );
osg::Camera* camera = new osg::Camera;
info->addCamera(flightgear::LIGHTING_CAMERA, camera );
info->addCamera(flightgear::LIGHTING_CAMERA, camera );
camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::LIGHTING_CAMERA, info ) );
camera->setAllowEventFocus(false);
@ -1121,9 +1124,9 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* in
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setRenderOrder(osg::Camera::POST_RENDER, 50);
camera->setRenderTargetImplementation( osg::Camera::FRAME_BUFFER_OBJECT );
camera->setViewport( new osg::Viewport );
attachBufferToCamera( info, camera, osg::Camera::DEPTH_BUFFER, flightgear::LIGHTING_CAMERA, flightgear::RenderBufferInfo::DEPTH_BUFFER );
attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER, flightgear::LIGHTING_CAMERA, flightgear::RenderBufferInfo::LIGHTING_BUFFER );
camera->setViewport( new osg::Viewport );
attachBufferToCamera( info, camera, osg::Camera::DEPTH_BUFFER, flightgear::LIGHTING_CAMERA, flightgear::RenderBufferInfo::DEPTH_BUFFER );
attachBufferToCamera( info, camera, osg::Camera::COLOR_BUFFER, flightgear::LIGHTING_CAMERA, flightgear::RenderBufferInfo::LIGHTING_BUFFER );
camera->setDrawBuffer(GL_FRONT);
camera->setReadBuffer(GL_FRONT);
camera->setClearColor( osg::Vec4( 0., 0., 0., 1. ) );
@ -1162,7 +1165,7 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* in
ss = eg->getOrCreateStateSet();
ss->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
ss->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF );
ss->setTextureAttributeAndModes( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
ss->setTextureAttributeAndModes( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
ss->setTextureAttributeAndModes( 1, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
ss->setTextureAttributeAndModes( 2, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
ss->setTextureAttributeAndModes( 3, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
@ -1197,7 +1200,7 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* in
ss->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
ss->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF );
ss->setAttributeAndModes( new osg::BlendFunc( osg::BlendFunc::ONE, osg::BlendFunc::ONE ) );
ss->setTextureAttribute( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
ss->setTextureAttribute( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
ss->setTextureAttribute( 1, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
ss->setTextureAttribute( 2, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
ss->setTextureAttribute( 3, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
@ -1268,7 +1271,7 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* in
ss->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
ss->setMode( GL_DEPTH_TEST, osg::StateAttribute::OFF );
ss->setAttributeAndModes( new osg::BlendFunc( osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA ) );
ss->setTextureAttributeAndModes( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
ss->setTextureAttributeAndModes( 0, info->getBuffer( flightgear::RenderBufferInfo::DEPTH_BUFFER ) );
ss->setTextureAttributeAndModes( 1, info->getBuffer( flightgear::RenderBufferInfo::NORMAL_BUFFER ) );
ss->setTextureAttributeAndModes( 2, info->getBuffer( flightgear::RenderBufferInfo::DIFFUSE_BUFFER ) );
ss->setTextureAttributeAndModes( 3, info->getBuffer( flightgear::RenderBufferInfo::SPEC_EMIS_BUFFER ) );
@ -1297,60 +1300,59 @@ osg::Camera* FGRenderer::buildDeferredLightingCamera( flightgear::CameraInfo* in
SG_LOG( SG_VIEW, SG_ALERT, "End of harmless warning messages on effects not found" );
return camera;
return camera;
}
flightgear::CameraInfo*
FGRenderer::buildDeferredPipeline(flightgear::CameraGroup* cgroup, unsigned flags, osg::Camera* camera,
const osg::Matrix& view,
const osg::Matrix& projection,
osg::GraphicsContext* gc)
const osg::Matrix& view,
const osg::Matrix& projection,
osg::GraphicsContext* gc)
{
CameraInfo* info = new CameraInfo(flags);
buildDeferredBuffers( info, _shadowMapSize );
buildDeferredBuffers( info, _shadowMapSize, !fgGetBool("/sim/rendering/no-16bit-buffer", false ) );
osg::Camera* geometryCamera = buildDeferredGeometryCamera( info, gc );
osg::Camera* geometryCamera = buildDeferredGeometryCamera( info, gc );
cgroup->getViewer()->addSlave(geometryCamera, false);
installCullVisitor(geometryCamera);
int slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
info->getRenderStageInfo(GEOMETRY_CAMERA).slaveIndex = slaveIndex;
info->getRenderStageInfo(GEOMETRY_CAMERA).slaveIndex = slaveIndex;
osg::Camera* shadowCamera = buildDeferredShadowCamera( info, gc );
Camera* shadowCamera = buildDeferredShadowCamera( info, gc );
cgroup->getViewer()->addSlave(shadowCamera, false);
installCullVisitor(shadowCamera);
slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
info->getRenderStageInfo(SHADOW_CAMERA).slaveIndex = slaveIndex;
info->getRenderStageInfo(SHADOW_CAMERA).slaveIndex = slaveIndex;
osg::Camera* lightingCamera = buildDeferredLightingCamera( info, gc );
osg::Camera* lightingCamera = buildDeferredLightingCamera( info, gc );
cgroup->getViewer()->addSlave(lightingCamera, false);
installCullVisitor(lightingCamera);
slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
info->getRenderStageInfo(LIGHTING_CAMERA).slaveIndex = slaveIndex;
info->getRenderStageInfo(LIGHTING_CAMERA).slaveIndex = slaveIndex;
camera->setName( "DisplayCamera" );
camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::DISPLAY_CAMERA, info ) );
camera->setName( "DisplayCamera" );
camera->setCullCallback( new FGDeferredRenderingCameraCullCallback( flightgear::DISPLAY_CAMERA, info ) );
camera->setReferenceFrame(Transform::ABSOLUTE_RF);
camera->setAllowEventFocus(false);
osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
g->setUseDisplayList(false); //DEBUG
simgear::EffectGeode* eg = new simgear::EffectGeode;
simgear::Effect* effect = simgear::makeEffect("Effects/display", true);
if (!effect)
{
SG_LOG(SG_VIEW, SG_ALERT, "Effects/display not found");
return 0;
}
eg->setEffect(effect);
eg->setCullingActive(false);
eg->addDrawable(g);
camera->setViewMatrix(osg::Matrix::identity());
camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
camera->addChild(eg);
camera->setAllowEventFocus(false);
osg::Geometry* g = osg::createTexturedQuadGeometry( osg::Vec3(-1.,-1.,0.), osg::Vec3(2.,0.,0.), osg::Vec3(0.,2.,0.) );
g->setUseDisplayList(false); //DEBUG
simgear::EffectGeode* eg = new simgear::EffectGeode;
simgear::Effect* effect = simgear::makeEffect("Effects/display", true);
if (!effect) {
SG_LOG(SG_VIEW, SG_ALERT, "Effects/display not found");
return 0;
}
eg->setEffect(effect);
eg->setCullingActive(false);
eg->addDrawable(g);
camera->setViewMatrix(osg::Matrix::identity());
camera->setProjectionMatrixAsOrtho2D(-1,1,-1,1);
camera->addChild(eg);
cgroup->getViewer()->addSlave(camera, false);
installCullVisitor(camera);
slaveIndex = cgroup->getViewer()->getNumSlaves() - 1;
info->addCamera( DISPLAY_CAMERA, camera, slaveIndex, true );
info->addCamera( DISPLAY_CAMERA, camera, slaveIndex, true );
camera->setRenderOrder(Camera::POST_RENDER, 99+slaveIndex); //FIXME
cgroup->addCamera(info);
return info;