Method Add

trinity/Tr2ImpostorManager.cpp:234–272

-------------------------------------------------------------------------------------- Description: Adds a new object to be an impostor. Arguments: object - Object to be an impostor hash - Current object hash Return Value: true If the object was added (or was already added before) false If the billboard atlas is full of the max number of re-renderings is exceeded ----------------------------------

//   false If the billboard atlas is full of the max number of re-renderings is exceeded
// --------------------------------------------------------------------------------------
bool Tr2ImpostorManager::Add( ITr2ImpostorSource* object, const ITr2ImpostorSource::ImpostorHash& hash )
{
	if( !m_rt || !m_rt->IsValid() )
	{
		return false;
	}

	Vector3 up = TransformNormal( Vector3( 0, 1, 0 ), Tr2Renderer::GetInverseViewTransform() );

	auto found = m_objects.find( object );
	if( found != m_objects.end() )
	{
		found->second.hash = hash;
		found->second.renderPriority = object->GetRenderPriority( found->second.oldHash, hash );
		found->second.used = true;
		return true;
	}

	if( m_renderQueue.size() >= m_maxUpdates )
	{
		return false;
	}

	Impostor impostor;
	if( !m_atlas.Reserve( impostor.texcoord ) )
	{
		return false;
	}

	impostor.hash = hash;
	impostor.used = true;
	impostor.renderPriority = std::numeric_limits<float>::max();
	impostor.render = true;

	m_objects[object] = impostor;

	m_renderQueue.push_back( object );
	return true;
}

// --------------------------------------------------------------------------------------
// Description: