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2012-02-07 simon.fraser@apple.com
 Removed Vincent Hardy from authors list at his request. Added links to the sections describing how to compute the transform and perspective matrices.
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‎css3-transforms/ChangeLog‎

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2012-02-07 simon.fraser@apple.com
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Removed Vincent Hardy from authors list at his request.
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Added links to the sections describing how to compute the transform and perspective matrices.
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2012-02-01 simon.fraser@apple.com
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Fix the definition of skew(): https://www.w3.org/Bugs/Public/show_bug.cgi?id=15537
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‎css3-transforms/Overview.html‎

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<h1>CSS Transforms</h1>
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<h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 1 February
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<h2 class="no-num no-toc" id=longstatus-date>Editor's Draft 7 February
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2012</h2>
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<dl>
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<dt>This version:
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<dd> <a
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href="http://www.w3.org/TR/2012/ED-css3-transforms-20120201/">http://dev.w3.org/csswg/css3-transforms/</a>
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<!--http://www.w3.org/TR/2012/WD-css3-transforms-20120201-->
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href="http://www.w3.org/TR/2012/ED-css3-transforms-20120207/">http://dev.w3.org/csswg/css3-transforms/</a>
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<!--http://www.w3.org/TR/2012/WD-css3-transforms-20120207-->
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<dt>Latest version:
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<dd>Edward O'Connor (<a href="http://www.apple.com/">Apple Inc</a>)
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&lt;eoconnor &#64;apple.com&gt;
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<dd>Vincent Hardy (<a href="http://www.adobe.com/">Adobe Systems,
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Inc</a>) &lt;vhardy &#64;adobe.com&gt;
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<dd>Dirk Schulze (<a href="http://www.adobe.com/">Adobe Systems, Inc</a>)
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&lt;dschulze &#64;adobe.com&gt;
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</dl>
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<p> A matrix computed from the values of the <a href="#perspective"><code
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class=property>perspective</code></a> and <a
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href="#perspective-origin"><code
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class=property>perspective-origin</code></a> properties.</p>
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class=property>perspective-origin</code></a> properties as described <a
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href="#perspective-matrix-computation">below</a>.</p>
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<dt id=TermTransformationMatrix><dfn
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id=transformation-matrix>transformation matrix</dfn>
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<p> A matrix computed from the values of the <a href="#effects"><code
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class=property>transform</code></a> and <a
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href="#transform-origin"><code
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class=property>transform-origin</code></a> properties.</p>
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class=property>transform-origin</code></a> properties as described <a
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href="#transformation-matrix-computation">below</a>.</p>
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<dt id=Term3DRenderingContext><dfn id=d-rendering-context>3D rendering
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context</dfn>
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adding a Z axis perpendicular to the plane of the screen, that increases
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towards the viewer.
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<p> The <a href="#TermTransformationMatrix"><i>transformation
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matrix</i></a> is computed from the <a href="#effects"><code
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<p id=transformation-matrix-computation> The <a
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href="#TermTransformationMatrix"><i>transformation matrix</i></a> is
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computed from the <a href="#effects"><code
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class=property>transform</code></a> and <a href="#transform-origin"><code
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class=property>transform-origin</code></a> properties as follows:
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(closer to the viewer) appear larger, and those futher away to appear
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smaller.
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<p> The <a href="#TermPerspectiveMatrix"><i>perspective matrix</i></a> is
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computed as follows: <!-- Make this more mathy, with matrices? -->
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<p id=perspective-matrix-computation> The <a
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href="#TermPerspectiveMatrix"><i>perspective matrix</i></a> is computed as
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follows: <!-- Make this more mathy, with matrices? -->
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<ol>
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<li>Start with the identity matrix.

‎css3-transforms/Transforms.src.html‎

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<dd>David Hyatt (<a href="http://www.apple.com/">Apple Inc</a>) &lt;hyatt &#64;apple.com&gt;
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<dd>Chris Marrin (<a href="http://www.apple.com/">Apple Inc</a>) &lt;cmarrin &#64;apple.com&gt;
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<dd>Edward O'Connor (<a href="http://www.apple.com/">Apple Inc</a>) &lt;eoconnor &#64;apple.com&gt;
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<dd>Vincent Hardy (<a href="http://www.adobe.com/">Adobe Systems, Inc</a>) &lt;vhardy &#64;adobe.com&gt;
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<dd>Dirk Schulze (<a href="http://www.adobe.com/">Adobe Systems, Inc</a>) &lt;dschulze &#64;adobe.com&gt;
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</dl>
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<dt id="TermPerspectiveMatrix"><dfn>perpsective matrix</dfn></dt>
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<dd>
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<p>
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A matrix computed from the values of the <code class="property">perspective</code> and <code class="property">perspective-origin</code> properties.
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A matrix computed from the values of the <code class="property">perspective</code> and <code class="property">perspective-origin</code> properties as described <a href="#perspective-matrix-computation">below</a>.
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</p>
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</dd>
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<dt id="TermTransformationMatrix"><dfn>transformation matrix</dfn></dt>
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<dd>
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<p>
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A matrix computed from the values of the <code class="property">transform</code> and <code class="property">transform-origin</code> properties.
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A matrix computed from the values of the <code class="property">transform</code> and <code class="property">transform-origin</code> properties as described <a href="#transformation-matrix-computation">below</a>.
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</p>
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</dd>
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transform functions extent this coordinate space into three dimensions,
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adding a Z axis perpendicular to the plane of the screen, that increases towards the viewer.
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</p>
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<p>
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<p id="transformation-matrix-computation">
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The <a href="#TermTransformationMatrix"><i>transformation matrix</i></a> is computed
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from the <code class="property">transform</code> and <code class="property">transform-origin</code> properties
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as follows:
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properties can be used to add a feeling of depth to a scene by making elements higher on the Z axis
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(closer to the viewer) appear larger, and those futher away to appear smaller.
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</p>
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<p>
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<p id="perspective-matrix-computation">
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The <a href="#TermPerspectiveMatrix"><i>perspective matrix</i></a> is computed as follows:
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<!-- Make this more mathy, with matrices? -->
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<ol>

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