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Rendering is different in Chrome vs Firefox

#88

See image below.

Chrome appears to be doing some king of image processing or other rendering process that provides a nicer image but with lower frame rates.

Reported by Dan Arnold · February 23rd, 2011 @ 07:07 PM

State: resolved
Milestone: 0.6
Assigned to: Andor Salga Andor Salga

Activity

  1. Dan Arnold
    Dan Arnold

    February 23rd, 2011 @ 09:02 PM

  2. Andor Salga
    Andor Salga
    • Tag set to anti-aliasing
    • State changed from new to assigned
    • Milestone set to 0.6
    • Assigned user set to Andor Salga
    • Milestone order changed from 29 to 0

    Looks like Chrome is using anti-aliasing and Minefield isn't. I'll look into this.

    Also, I wonder if this is related to the frame rate. I'll try toggling anti-aliasing on Chrome to see if there are performance differences. In any event, I know Minefield has been leading in terms of WebGL performance, but there's a chance we could file a bug for Chrome.

    March 1st, 2011 @ 08:36 PM

  3. Andor Salga
    Andor Salga

    I played with anti-aliasing on Chrome and found that the performance hit is ~10 fps.

    On my macbook pro:

    Chrome: ~42fps with AA ~51fps without AA
    Minefield: ~65fps without AA

    WebGL spec says AA should be on by default. Currently Minefield does not have AA on my default, it actually does not support AA at all.

    I think AA is something a user should be able to toggle when they create an instance of XBPS.

    For now, we can disable AA making all browsers render similar point clouds, which will also fix ref testing. Later on, we can add AA support.

    Thoughts, ideas?

    March 3rd, 2011 @ 07:52 PM

  4. Andor Salga
    Andor Salga
    • State changed from assigned to resolved

    I fixed the anti-aliasing in another branch so both Minefield and Chrome.

    Setting this to resolved.

    March 14th, 2011 @ 05:50 PM

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