Box Mask    

       Box Mask:

       

   Mask Operation: 

Holding the CTRL key automatically enables masking without the need to physically click the brush icon.

Mask is valued from 0 — 1.0 ; 0 means no mask.

      

       Clear:

       Clear off all the mask. or hold [Ctrl], and the mouse double click the blank of mesh;

      Invert:

        Invert the mask region. or hold [Ctrl], and the mouse single click the blank of mesmeh;

      Sharp:

       Make the mask value near to 1.0.

      Blur:

       Make the mask value in neigbor smoother.

      Diffuse:

       diffuse the mask area to neighbor in smoothly .

      Inflate:

       inflate the mask region .