Question for the 3D representation in refine stage

[SCUTykLin]

Hello:
To double-check. The mesh representation is the 3D representation in refine stage, right? Therefore, in the second phase, the task of generating mesh materials is actually being carried out. Is my understanding correct?

I read the sentence "In the refining stage, we convert the coarse model to mesh representation and propose a pro�gressive, controllable repainting scheme for texture refinement." in section 4. Method.

Thanks