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Copy file name to clipboardExpand all lines: compositing-1/Overview.bs
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Group: fxtf
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Editor: Rik Cabanier, Adobe Systems Inc., cabanier@adobe.com, w3cid 106988
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Editor: Nikos Andronikos, Canon Information Systems Research Australia, Nikos.Andronikos@cisra.canon.com.au
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Editor: Chris Harrelson, Google Inc., chrishtr@chromium.org, w3cid 90243
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Editor: Chris Harrelson, Google, chrishtr@chromium.org, w3cid 90243
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Abstract: Compositing describes how shapes of different elements are combined into a single image. There are various possible approaches for compositing. Previous versions of SVG and CSS used <a href="https://www.w3.org/TR/SVG11/masking.html#SimpleAlphaBlending">Simple Alpha Compositing</a>. In this model, each element is rendered into its own buffer and is then merged with its <a>backdrop</a> using the Porter Duff ''source-over'' operator. This specification will define a new compositing model that expands upon the Simple Alpha Compositing model by offering:
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Abstract: <ul><li>additional Porter Duff compositing operators</li><li>advanced blending modes which allow control of how colors mix in the areas where shapes overlap</li><li>compositing groups</li></ul>
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Abstract: In addition, this specification will define CSS properties for blending and group isolation and the properties of the {{globalCompositeOperation}} attribute.
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