alpha on a pivot?

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You can't do what you ask. The alpha of the parent mesh will have no bearing on it's children, only scale / rotation etc.. This is the only way I can think of and it involves going through them all individually.

Stevie

for c = 1 to countchildren( pivot )

  child = getchild( pivot, c )
  if entityclass$( child ) = "Mesh"
     entityalpha child, .25
  endif

next