W3C home > Mailing lists > Public > www-svg@w3.org > May 2010

feDisplacementMap out of bounds

From: Michael Day <mikeday@yeslogic.com>
Date: Thu, 20 May 2010 16:40:47 +1000
Message-ID: <4BF4D96F.6050408@yeslogic.com>
To: www-svg@w3.org
Hi,

For the feDisplacementMap filter, what is the expected behaviour for 
displacements that are outside the bounds of the input image?

For example, if the calculated displacement for pixel (10,10) ends up 
being (-20,-20), what will be used for P'(10, 10)? Will the original 
pixel be used unchanged, or will it be black, or something else?

Also, is this question answered in the spec already and I missed it?

Best regards,

Michael

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Received on Thursday, 20 May 2010 06:41:25 GMT

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