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Reducing memory strain with Cutout Opacity and Geoshells?

DefaultNameDefaultName Posts: 391
edited February 2021 in Technical Help (nuts n bolts)

Hello, quick two questions

1) Does setting cutout opacity to zero for parts of an object I don't want to render reduce the memory used for that object?

2) If not, can I make a geoshell, hide the original object, and "turn off" the surfaces in the parameters tab of the geoshell to reduce memory?

Sorry if that sounds confusing, I do this all the time with figures, but am now faced with a large prop that I only want to render one part of, and I'm trying to find the easiest way to do so without taxing my PC. Thank you.

Post edited by DefaultName on

Comments

  • Richard HaseltineRichard Haseltine Posts: 102,269

    DefaultName said:

    Hello, quick two questions

    1) Does setting cutout opacity to zero for parts of an object I don't want to render reduce the memory used for that object?

    No, it still gets passed to Iray for evaluation.

    2) If not, can I make a geoshell, hide the original object, and "turn off" the surfaces in the parameters tab of the geoshell to reduce memory?

    I think that should work, but I've not tested.

    Sorry if that sounds confusing, I do this all the time with figures, but am now faced with a large prop that I only want to render one part of, and I'm trying to find the easiest way to do so without taxing my PC. Thank you.

  • DefaultNameDefaultName Posts: 391

    Richard Haseltine said:

    DefaultName said:

    Hello, quick two questions

    1) Does setting cutout opacity to zero for parts of an object I don't want to render reduce the memory used for that object?

    No, it still gets passed to Iray for evaluation.

    2) If not, can I make a geoshell, hide the original object, and "turn off" the surfaces in the parameters tab of the geoshell to reduce memory?

    I think that should work, but I've not tested.

    Sorry if that sounds confusing, I do this all the time with figures, but am now faced with a large prop that I only want to render one part of, and I'm trying to find the easiest way to do so without taxing my PC. Thank you.

    Okay great, thank you. I might test this by seeing how much memory gets use in the iray preview in the viewport, comparing if I hide geoshell parts or not. 

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