awayjs-display
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AwayJS displaylist classes
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JavaScript
;
/**
* Defines codes for culling algorithms that determine which triangles not to
* render when drawing triangle paths.
*
* <p> The terms <code>POSITIVE</code> and <code>NEGATIVE</code> refer to the
* sign of a triangle's normal along the z-axis. The normal is a 3D vector
* that is perpendicular to the surface of the triangle. </p>
*
* <p> A triangle whose vertices 0, 1, and 2 are arranged in a clockwise order
* has a positive normal value. That is, its normal points in a positive
* z-axis direction, away from the current view point. When the
* <code>TriangleCulling.POSITIVE</code> algorithm is used, triangles with
* positive normals are not rendered. Another term for this is backface
* culling. </p>
*
* <p> A triangle whose vertices are arranged in a counter-clockwise order has
* a negative normal value. That is, its normal points in a negative z-axis
* direction, toward the current view point. When the
* <code>TriangleCulling.NEGATIVE</code> algorithm is used, triangles with
* negative normals will not be rendered. </p>
*/
var TriangleCulling = (function () {
function TriangleCulling() {
}
/**
* Specifies culling of all triangles facing toward the current view point.
*/
TriangleCulling.NEGATIVE = "negative";
/**
* Specifies no culling. All triangles in the path are rendered.
*/
TriangleCulling.NONE = "none";
/**
* Specifies culling of all triangles facing away from the current view
* point. This is also known as backface culling.
*/
TriangleCulling.POSITIVE = "positive";
return TriangleCulling;
}());
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = TriangleCulling;
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