Re: [filter-effects] negative std deviation on feGaussianBlur

On Mon, Aug 26, 2013 at 9:34 AM, Tab Atkins Jr. <> wrote:
> On Mon, Aug 26, 2013 at 5:31 AM, Dirk Schulze <> wrote:
>> Hi,
>> The specification currently does not say what happens on negative standard deviation values for feGaussianBlur [1]. I suggest that it is not treated differently than a value of zero: the filter primitive does not have any effect on the input image, the input does not get blurred. I'll change the specification text to this suggestion.
>> Greetings,
>> Dirk
>> [1]
> I agree with this change.

Note that I would disagree with this for blur() - a negative value
should be invalid at parse time.  We try not to do fixup in CSS, since
we have good fallback mechanisms.


Received on Monday, 26 August 2013 16:37:46 UTC