Set the Max depth parameter of both the Reflection and Refraction roll-out to 10.

I am not sure whether roll-out should be plural or not in this particular case.

  • More detail is needed. First, How are we to understand "roll-out"? Second, is there one roll-out involving reflection and refraction or is there one roll-out for each?
    – Anton
    Aug 24, 2020 at 13:32
  • Roll-out is a drop-down menu, and there are two roll-outs - one for refraction and one for reflection.
    – Zheni
    Aug 24, 2020 at 13:40
  • Yes, this involves some level of deletion, and a simplistic answer may be flawed. However, I'd model on Set the brightness level of both the red and green bulbs at high. Though I couldn't flaw levels here either. Aug 24, 2020 at 14:05

1 Answer 1


I think you have answered your own question. "... of both the Reflection and Refraction roll-outs to 10"

The emphatic and unnecessary "Both" is troublesome here. It invites us to understand "... both the Reflection and the Refraction roll-out to 10".

If you had three roll-outs the problem would not arise. "Set the ... of the Reflection, Refraction, and Diffraction roll-outs to 10". To use the singular would suggest that the three variables have one common roll-out rather than one each.

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