MaterialPtr PGSampleApp::buildDepthShadowMaterial(const String& textureName)
{
String matName = "DepthShadows/" + textureName;
#if OGRE_VERSION_MAJOR <= 1
#if OGRE_VERSION_MINOR <= 8
MaterialPtr ret = MaterialManager::getSingleton().getByName(matName);
#else
MaterialPtr ret = MaterialManager::getSingleton().getByName(matName);
#endif
#endif
if (ret.isNull())
{
#if OGRE_VERSION_MAJOR <= 1
#if OGRE_VERSION_MINOR <= 8
MaterialPtr baseMat = MaterialManager::getSingleton().getByName("Ogre/shadow/depth/integrated/pssm");
#else
MaterialPtr baseMat = MaterialManager::getSingleton().getByName("Ogre/shadow/depth/integrated/pssm").staticCast<Material>();
#endif
#endif
ret = baseMat->clone(matName);
Pass* p = ret->getTechnique(0)->getPass(0);
p->getTextureUnitState("diffuse")->setTextureName(textureName);
Vector4 splitPoints;
const PSSMShadowCameraSetup::SplitPointList& splitPointList =
static_cast<PSSMShadowCameraSetup*>(mPSSMSetup.get())->getSplitPoints();
for (int i = 0; i < 3; ++i)
{
splitPoints[i] = splitPointList[i];
}
p->getFragmentProgramParameters()->setNamedConstant("pssmSplitPoints", splitPoints);
}
return ret;
}
void configureShadows( bool enabled, bool depthShadows )
{
TerrainMaterialGeneratorA::SM2Profile* matProfile =
static_cast<TerrainMaterialGeneratorA::SM2Profile*>(mTerrainGlobals->getDefaultMaterialGenerator()->getActiveProfile());
matProfile->setReceiveDynamicShadowsEnabled( enabled );
#ifdef SHADOWS_IN_LOW_LOD_MATERIAL
matProfile->setReceiveDynamicShadowsLowLod( true );
#else
matProfile->setReceiveDynamicShadowsLowLod( false );
#endif
// Default materials
for( EntityList::iterator i = mHouseList.begin(); i != mHouseList.end(); ++i )
{
(*i)->setMaterialName( "Examples/TudorHouse" );
}
if( enabled )
{// General scene setup
mSceneMgr->setShadowTechnique( SHADOWTYPE_TEXTURE_ADDITIVE_INTEGRATED );
mSceneMgr->setShadowFarDistance( 3000 );
// 3 textures per directional light (PSSM)
mSceneMgr->setShadowTextureCountPerLightType( Ogre::Light::LT_DIRECTIONAL, 3 );
if( mPSSMSetup.isNull() )
{// shadow camera setup
PSSMShadowCameraSetup* pssmSetup = new PSSMShadowCameraSetup();
pssmSetup->setSplitPadding( mCamera->getNearClipDistance() );
pssmSetup->calculateSplitPoints( 3, mCamera->getNearClipDistance(), mSceneMgr->getShadowFarDistance() );
pssmSetup->setOptimalAdjustFactor( 0, 2 );
pssmSetup->setOptimalAdjustFactor( 1, 1 );
pssmSetup->setOptimalAdjustFactor( 2, 0.5 );
mPSSMSetup.bind( pssmSetup );
}
mSceneMgr->setShadowCameraSetup( mPSSMSetup );
if( depthShadows )
{
mSceneMgr->setShadowTextureCount( 3 );
mSceneMgr->setShadowTextureConfig( 0, 2048, 2048, PF_FLOAT32_R );
mSceneMgr->setShadowTextureConfig( 1, 1024, 1024, PF_FLOAT32_R );
mSceneMgr->setShadowTextureConfig( 2, 1024, 1024, PF_FLOAT32_R );
mSceneMgr->setShadowTextureSelfShadow( true );
mSceneMgr->setShadowCasterRenderBackFaces( true );
MaterialPtr houseMat = buildDepthShadowMaterial( "fw12b.jpg" );
for( EntityList::iterator i = mHouseList.begin(); i != mHouseList.end(); ++i )
{
(*i)->setMaterial( houseMat );
}
}
else
{
mSceneMgr->setShadowTextureCount( 3 );
mSceneMgr->setShadowTextureConfig( 0, 2048, 2048, PF_X8B8G8R8 );
mSceneMgr->setShadowTextureConfig( 1, 1024, 1024, PF_X8B8G8R8 );
mSceneMgr->setShadowTextureConfig( 2, 1024, 1024, PF_X8B8G8R8 );
mSceneMgr->setShadowTextureSelfShadow( false );
mSceneMgr->setShadowCasterRenderBackFaces( false );
mSceneMgr->setShadowTextureCasterMaterial( StringUtil::BLANK );
}
matProfile->setReceiveDynamicShadowsDepth( depthShadows );
matProfile->setReceiveDynamicShadowsPSSM( static_cast<PSSMShadowCameraSetup*>(mPSSMSetup.get()) );
//addTextureShadowDebugOverlay(TL_RIGHT, 3);
}
else
{
mSceneMgr->setShadowTechnique( SHADOWTYPE_NONE );
}
}
