Optimization Question: Brushes vs. Displacements

Discussion in 'Mapping Questions & Discussion' started by A Gentleman's Mustache, Feb 12, 2016.

  1. A Gentleman's Mustache

    A Gentleman's Mustache L1: Registered

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    In terms of rendering and performance, is it "cheaper" to make the floor of a map out of brushes that can seal the map on their own, or out of displacements which require nodraw brushes underneath them to seal the map? Does the increased file size from using the second method matter much?
     
  2. Vel0city

    aa Vel0city func_fish

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    Well, if you want detailed ground you pretty much need displacements anyway. File size doesn't really increase, as the brush underneath a displacement should be covered in nodraw anyway. Nodraw also doesn't render, so it's not a performance decrease.
     
  3. A Gentleman's Mustache

    A Gentleman's Mustache L1: Registered

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    Perfect. Thanks.
     
  4. henke37

    aa henke37

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    I hear that displacements are cheaper than normal brushes for some reason. Personally I wouldn't bother with the difference.