Method UpdateBuffer

trinity/Eve/SpaceObject/Children/EveChildLineSet.cpp:304–336

}

void EveChildLineSet::UpdateBuffer( Tr2RenderContext& renderContext )
{
	unsigned points, total = 0;
	for( auto it = begin( m_lines ); it != end( m_lines ); ++it )
	{
		( *it )->GetPointCount( points );
		total += points;
	}
	m_totalObjectCount = total;

	if( !m_vertexBuffer.IsValid() || m_vertexBuffer.GetDesc().count < m_totalObjectCount )
	{
		USE_MAIN_THREAD_RENDER_CONTEXT();
		m_vertexBuffer.Create(
			m_stride,
			uint32_t( m_totalObjectCount ),
			Tr2GpuUsage::VERTEX_BUFFER,
			Tr2CpuUsage::WRITE_OFTEN,
			nullptr,
			renderContext );
	}

	uint8_t* data;

	CR_RETURN( m_vertexBuffer.MapForWriting( data, renderContext ) );

	for( auto it = begin( m_lines ); it != end( m_lines ); ++it )
	{
		( *it )->UpdateBuffer( renderContext, data, m_worldTransform, m_stride );
	}

	m_vertexBuffer.UnmapForWriting( renderContext );
}

void EveChildLineSet::CreateSpriteVertexDeclaration()
{