Method EndUpdateAtlas

trinity/Tr2ImpostorManager.cpp:414–439

-------------------------------------------------------------------------------------- Description: Finishes re-rendering of impostor billboards. Should be called before any EndImpostorUpdate. Copies updated impostor images to the atlas. Arguments: renderContext - Current render context --------------------------------------------------------------------------------------

//   renderContext - Current render context
// --------------------------------------------------------------------------------------
void Tr2ImpostorManager::EndUpdateAtlas( Tr2RenderContext& renderContext )
{
	if( !m_rt || !m_rt->IsValid() || m_renderQueue.empty() )
	{
		return;
	}

	renderContext.m_esm.PopDepthStencilBuffer();
	renderContext.m_esm.PopRenderTarget();

	for( size_t i = 0; i < m_renderQueue.size(); ++i )
	{
		auto impostor = m_objects.find( m_renderQueue[i] );

		impostor->second.oldHash = impostor->second.hash;

		auto x = uint32_t( float( impostor->second.texcoord.x ) * m_width );
		auto y = uint32_t( float( impostor->second.texcoord.y ) * m_height );
		Tr2TextureSubresource dst( 0 );
		dst.SetRect( x, y, x + m_itemWidth, y + m_itemHeight );
		Tr2TextureSubresource src( 0 );
		src.SetRect( uint32_t( i ) * m_itemWidth, 0, uint32_t( i + 1 ) * m_itemWidth, m_itemHeight );

		m_rt->GetRenderTarget().CopySubresourceRegion( dst, *m_itemRt, src, renderContext );
	}
}

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