message: Account for baseVertex when patching line strip index buffer
diff: @@ -192,7 +192,8 @@ void PatchLineStripIndexBuffer(const ActionDescription *action, Topology topolog
  #define IDX_VALUE(offs) \
  (idx16 ? idx16[index + (offs)] \
  - : (idx32 ? idx32[index + (offs)] : (idx8 ? idx8[index + (offs)] : index + (offs))))
  + : (idx32 ? idx32[index + (offs)] : (idx8 ? idx8[index + (offs)] : index + (offs)))) + \
  + action->baseVertex
  switch(topology)
  {
  