[Bug 22435] New: Add a note that numOctaves of feTurbulence should be 10 or less

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22435

            Bug ID: 22435
           Summary: Add a note that numOctaves of feTurbulence should be
                    10 or less
    Classification: Unclassified
           Product: CSS
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Filter Effects
          Assignee: dino@apple.com
          Reporter: poccil@yahoo.com
        QA Contact: public-css-bugzilla@w3.org
                CC: cmarrin@apple.com, eoconnor@apple.com, smfr@me.com

https://dvcs.w3.org/hg/FXTF/raw-file/default/filters/index.html#feTurbulenceNumOctavesAttribute

Should read:
[[
    The numOctaves parameter for the noise function.

    The lacuna value for ‘numOctaves’ is 1.

    Negative values are unsupported.  This value should not be greater than 10,
as higher values are not likely to have a noticeable effect.

    Animatable: yes. 
]]

This is because the Firefox team recently implemented a limit to this value in
order to prevent Firefox from hanging if numOctaves is much too big. As noted
in the issue [1], "octaves changes have a smaller and smaller effect as they
grow larger".

[1]: https://bugzilla.mozilla.org/show_bug.cgi?id=601131

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Received on Monday, 24 June 2013 14:37:03 UTC