Method render

Engine/source/forest/ts/tsForestItemData.cpp:222–258

}

bool TSForestItemData::render( TSRenderState *rdata, const ForestItem &item ) const
{
   PROFILE_SCOPE( TSForestItemData_render );

   // This shouldn't happen normally at runtime, but during
   // development a file change notification on a bad file
   // can cause us to get here without a shape.
   TSShapeInstance *shapeInst = _getShapeInstance();
   if ( !shapeInst )
      return false;

   const F32 scale = item.getScale();

   // Figure out the distance of this item to the camera.
   const SceneRenderState *state = rdata->getSceneState();
   F32 dist = ( item.getPosition() - state->getDiffuseCameraPosition() ).len();

   // TODO: Selecting the lod seems more expensive than
   // it should be... we should look to optimize this.
   if ( shapeInst->setDetailFromDistance( state, dist / scale ) < 0 )
      return false;

   // TSShapeInstance::render() uses the 
   // world matrix for the RenderInst.
   MatrixF worldMat = item.getTransform();
   worldMat.scale( scale );
   GFX->setWorldMatrix( worldMat );
   rdata->setMaterialHint( (void*)&item );

   // This isn't documented well, but these calls
   // don't really render... rather they batch the
   // shape to be rendered by the render instance
   // manager later on.
   shapeInst->animate();
   shapeInst->render( *rdata );
   return true;
}