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Re: Compositing math in SVG

From: Calculemus <calculemus1988@gmail.com>
Date: Fri, 20 Jul 2012 07:40:09 +0200
Message-ID: <CAOn8Oo-e9+k2kJ0wRHKx7uWGcSdbxy6yAP1-pVRoHKdt6eauMw@mail.gmail.com>
To: Rik Cabanier <cabanier@gmail.com>
Cc: Kai-Uwe Behrmann <ku.b@gmx.de>, www-svg@w3.org
I think I have found a problem with Photoshop blend modes or
the SVG spec.

I implemented ColorBurn as specified here:

http://www.w3.org/TR/SVGCompositing/

Here is a test I made:

http://postimage.org/image/v4iuo3iyt/

And here is what I get in Photoshop, notice the extra
red pointed by the arrow:

http://postimage.org/image/6s7ox8joh/

That red must be an error, there is no red there
in any of the input images. Here are the two images
I blend:

http://postimage.org/image/iqji3qood/
http://postimage.org/image/vk32ywdp1/

In this case I think it is an issue in Photoshop,
what do you think?
Received on Friday, 20 July 2012 05:40:36 GMT

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