Method prepRenderImage

Engine/source/environment/sun.cpp:344–387

void Sun::prepRenderImage( SceneRenderState *state )
{
   // Only render into diffuse and reflect passes.

   if( !state->isDiffusePass() &&
       !state->isReflectPass() )
      return;
   
   mLightWorldPos = state->getCameraPosition() - state->getFarPlane() * mLight->getDirection() * 0.9f;
   F32 dist = ( mLightWorldPos - state->getCameraPosition() ).len();

   F32 screenRadius = GFX->getViewport().extent.y * mCoronaScale * 0.5f;
   mCoronaWorldRadius = screenRadius * dist / state->getWorldToScreenScale().y;   

   // Render instance for Corona effect.   
   if ( mCoronaEnabled && mCoronaMatInst )
   {
      mMatrixSet->setSceneProjection( GFX->getProjectionMatrix() );
      mMatrixSet->setSceneView( GFX->getViewMatrix() );
      mMatrixSet->setWorld( GFX->getWorldMatrix() );

      ObjectRenderInst *ri = state->getRenderPass()->allocInst<ObjectRenderInst>();
      ri->renderDelegate.bind( this, &Sun::_renderCorona );
      ri->type = RenderPassManager::RIT_Sky;      
      // Render after sky objects and before CloudLayer!
      ri->defaultKey = 5;
      ri->defaultKey2 = 0;
      state->getRenderPass()->addInst( ri );
   }

   // LightFlareData handles rendering flare effects.
   if ( mFlareData )
   {
      mFlareState.fullBrightness = mBrightness;
      mFlareState.scale = mFlareScale;
      mFlareState.lightInfo = mLight;
      mFlareState.worldRadius = mCoronaWorldRadius;

      mFlareState.lightMat.identity();
      mFlareState.lightMat.setPosition( mLightWorldPos );

      mFlareData->prepRender( state, &mFlareState );
   }
}

void Sun::setAzimuth( F32 azimuth )
{