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Reflection Capture Resolution - Should Changes Be Powers Of Two?

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    Reflection Capture Resolution - Should Changes Be Powers Of Two?

    Hello Unreal Developers:

    Should the Reflection Capture Resolution found in Project Settings > Rendering > Reflections section > Reflection Capture Resolution be adjusted using powers of two? I noticed that it's set to 64 (meaning 64x64) by default, which is a power of two.

    If you answer this question, could you please provide some supplemental reading for me to understand how you supported your answer. I like to learn and not ask too many questions.

    Thanks,

    -Erol
    Last edited by erol_demirci; 07-17-2019, 09:02 PM.

    #2
    You can only enter a power of 2 value. If you do not, it will round to the nearest one. Also, be sure to hover your mouse over any features you have questions about because there will typically be a detailed tooltip to call out basic and important information about the feature.
    Tim Hobson | Learning Resources | Epic Games
    UE4 Documentation

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      #3
      Originally posted by Tim Hobson View Post
      You can only enter a power of 2 value. If you do not, it will round to the nearest one. Also, be sure to hover your mouse over any features you have questions about because there will typically be a detailed tooltip to call out basic and important information about the feature.
      'tard moment I appreciate you pointing that out to me. The way that I arrived at this question was by following some performance and optimization techniques outlined in the Online Learning, under Building Better Pipelines, specifically under Reflections. I had just finished the entire course yesterday, then hopped over to the documentation here: https://docs.unrealengine.com/en-US/...ent/index.html

      While it does use examples of powers of 2, it didn't state specifically that it required powers of 2. I wasn't sure myself as I had not had a chance yet to fiddle with it myself, and, that textures themselves can be imported as non-powers of 2 (though that's not recommended). I came here and I got my answer.

      I appreciate the response Tim Hobson

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        #4
        erol_demirci
        Thanks for letting me know about it not specifically saying to use a power of 2. I'll add that to the Warning box where it talks about performance implications.


        Tim Hobson | Learning Resources | Epic Games
        UE4 Documentation

        Comment


          #5
          Originally posted by Tim Hobson View Post
          erol_demirci
          Thanks for letting me know about it not specifically saying to use a power of 2. I'll add that to the Warning box where it talks about performance implications.

          You're welcome Tim Hobson

          I honestly don't think it's necessary, as anyone changing it would immediately see that. However, for accurate and complete documentation on a feature, I understand why you'd want to go back and update.

          -Erol

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