306 lines
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<a href="openfl.display.triangleculling.html">TriangleCulling</a>
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</ul>
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<h1>Enumeration TriangleCulling</h1>
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</div>
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</header>
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<p>Defines codes for culling algorithms that determine which triangles not to
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render when drawing triangle paths.</p>
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</div>
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<p> The terms <code>POSITIVE</code> and <code>NEGATIVE</code> refer to the
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sign of a triangle's normal along the z-axis. The normal is a 3D vector
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that is perpendicular to the surface of the triangle.</p>
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<p> A triangle whose vertices 0, 1, and 2 are arranged in a clockwise order
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has a positive normal value. That is, its normal points in a positive
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z-axis direction, away from the current view point. When the
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<code>TriangleCulling.POSITIVE</code> algorithm is used, triangles with
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positive normals are not rendered. Another term for this is backface
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culling.</p>
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<p> A triangle whose vertices are arranged in a counter-clockwise order has
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a negative normal value. That is, its normal points in a negative z-axis
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direction, toward the current view point. When the
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<code>TriangleCulling.NEGATIVE</code> algorithm is used, triangles with
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negative normals will not be rendered.</p>
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<h3>Enumeration members</h3>
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<li class="tsd-kind-enum-member tsd-parent-kind-enum tsd-is-external"><a href="openfl.display.triangleculling.html#negative" class="tsd-kind-icon">NEGATIVE</a></li>
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<li class="tsd-kind-enum-member tsd-parent-kind-enum tsd-is-external"><a href="openfl.display.triangleculling.html#none" class="tsd-kind-icon">NONE</a></li>
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<li class="tsd-kind-enum-member tsd-parent-kind-enum tsd-is-external"><a href="openfl.display.triangleculling.html#positive" class="tsd-kind-icon">POSITIVE</a></li>
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<h2>Enumeration members</h2>
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<section class="tsd-panel tsd-member tsd-kind-enum-member tsd-parent-kind-enum tsd-is-external">
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<a name="negative" class="tsd-anchor"></a>
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<h3>NEGATIVE</h3>
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<div class="tsd-signature tsd-kind-icon">NEGATIVE<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol"> = "negative"</span></div>
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<aside class="tsd-sources">
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<ul>
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<li>Defined in <a href="https://github.com/openfl/openfl/blob/9921d3bf/lib/openfl/display/TriangleCulling.d.ts#L29">lib/openfl/display/TriangleCulling.d.ts:29</a></li>
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</ul>
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<div class="tsd-comment tsd-typography">
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<div class="lead">
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<p>Specifies culling of all triangles facing toward the current view point.</p>
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</div>
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</div>
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</section>
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<section class="tsd-panel tsd-member tsd-kind-enum-member tsd-parent-kind-enum tsd-is-external">
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<a name="none" class="tsd-anchor"></a>
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<h3>NONE</h3>
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<div class="tsd-signature tsd-kind-icon">NONE<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol"> = "none"</span></div>
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<aside class="tsd-sources">
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<ul>
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<li>Defined in <a href="https://github.com/openfl/openfl/blob/9921d3bf/lib/openfl/display/TriangleCulling.d.ts#L34">lib/openfl/display/TriangleCulling.d.ts:34</a></li>
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</ul>
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</aside>
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<div class="tsd-comment tsd-typography">
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<div class="lead">
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<p>Specifies no culling. All triangles in the path are rendered.</p>
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</div>
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</div>
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</section>
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<section class="tsd-panel tsd-member tsd-kind-enum-member tsd-parent-kind-enum tsd-is-external">
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<a name="positive" class="tsd-anchor"></a>
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<h3>POSITIVE</h3>
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<div class="tsd-signature tsd-kind-icon">POSITIVE<span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol"> = "positive"</span></div>
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<aside class="tsd-sources">
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<ul>
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<li>Defined in <a href="https://github.com/openfl/openfl/blob/9921d3bf/lib/openfl/display/TriangleCulling.d.ts#L40">lib/openfl/display/TriangleCulling.d.ts:40</a></li>
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<div class="tsd-comment tsd-typography">
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<p>Specifies culling of all triangles facing away from the current view
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point. This is also known as backface culling.</p>
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