SO3ShadowStencil.cpp

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#include "SO3Renderer/SO3ShadowStencil.h"
#include "SO3Renderer/SO3Root.h"
 
namespace SO3
{
 
SShadowStencil::SShadowStencil() : SShadow(0, "", SShadowManager::SO3_SHADOWS_STENCIL)
{
}
 
SShadowStencil::SShadowStencil(SShadowManager* sManager) : SShadow(sManager, "Stencil", SShadowManager::SO3_SHADOWS_STENCIL)
{
  const Ogre::RenderSystemCapabilities* caps = SRoot::getSingleton().GetOgreRenderSystem()->getCapabilities();
  if (caps && caps->hasCapability(Ogre::RSC_HWSTENCIL))
  {
    //hack to be sure that ogre use the good shadow caster (ogre bug ?)
    Ogre::MaterialPtr mcaster = Ogre::MaterialManager::getSingleton().getByName("Ogre/StencilShadowVolumes");
    ogreScene->setShadowTextureCasterMaterial(mcaster);
    ogreScene->setShadowTextureReceiverMaterial(mcaster);
 
    ogreScene->setShadowTexturePixelFormat(Ogre::PF_X8R8G8B8);
    Ogre::ShadowTechnique newTechnique = static_cast <Ogre::ShadowTechnique> (Ogre::SHADOWDETAILTYPE_STENCIL | shadowManager->GetLightingTechnique());
    ogreScene->setShadowTechnique(newTechnique);
  }
}
 
SShadowStencil::~SShadowStencil()
{
  Ogre::MaterialPtr emptyMat;
  ogreScene->setShadowTextureCasterMaterial(emptyMat);
  ogreScene->setShadowTextureReceiverMaterial(emptyMat);
  ogreScene->setShadowTextureCount(1);
  ogreScene->setShadowTexturePixelFormat(Ogre::PF_X8R8G8B8);
  ogreScene->setShadowCasterRenderBackFaces(false);
  ogreScene->setShadowTextureSelfShadow(false);
  ogreScene->setShadowTechnique(Ogre::SHADOWTYPE_NONE);
}
 
void SShadowStencil::UpdateShadowTechnique()
{
  const Ogre::RenderSystemCapabilities* caps = SRoot::getSingleton().GetOgreRenderSystem()->getCapabilities();
  if (caps && caps->hasCapability(Ogre::RSC_HWSTENCIL))
  {
    Ogre::ShadowTechnique newTechnique = static_cast <Ogre::ShadowTechnique> (Ogre::SHADOWDETAILTYPE_STENCIL | shadowManager->GetLightingTechnique());
    ogreScene->setShadowTechnique(newTechnique);
  }
}
 
}