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Thread: FBO performance: who is right?

  1. #21
    Intern Newbie
    Join Date
    Feb 2005
    Posts
    30
    Quote Originally Posted by Mikkel Gjoel View Post
    As far as I am aware, both are right, they are talking about two different scenarios.

    If you switch between fewer rendertextures (of same size) than the maximum number of FBO-attachments, you can attach them to a single FBO to switch quickly between them. This is a static attachment, typically done at init-time, it never changes.

    What Valve are talking about, is swapping out the attachments, which does not apply to the situation described above.
    With "switch quickly between them" you mean attaching them once, and then just setting the one to be used with glDrawBuffer() ?

  2. #22
    Junior Member Regular Contributor
    Join Date
    Jan 2004
    Location
    .dk
    Posts
    129
    Quote Originally Posted by dv View Post
    With "switch quickly between them" you mean attaching them once, and then just setting the one to be used with glDrawBuffer() ?
    Yes, exactly

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