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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<title>Castle Game Engine: Castle3D: Object TRayCollisionNode</title>
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<h2>Castle Game Engine</h2><p><a href="introduction.html" class="navigation">Introduction</a></p><p><a href="AllUnits.html" class="navigation">Units</a></p><p><a href="ClassHierarchy.html" class="navigation">Class Hierarchy</a></p><p><a href="AllClasses.html" class="navigation">Classes, Interfaces, Objects and Records</a></p><p><a href="AllTypes.html" class="navigation">Types</a></p><p><a href="AllVariables.html" class="navigation">Variables</a></p><p><a href="AllConstants.html" class="navigation">Constants</a></p><p><a href="AllFunctions.html" class="navigation">Functions and Procedures</a></p><p><a href="AllIdentifiers.html" class="navigation">Identifiers</a></p></td><td class="content">
<a name="TRayCollisionNode"></a><h1 class="cio">Object TRayCollisionNode</h1>
<table class="sections wide_list">
<tr>
<td><a class="section" href="#PasDoc-Description">Description</a></td><td><a class="section" href="#PasDoc-Hierarchy">Hierarchy</a></td><td><a class="section" href="#PasDoc-Fields">Fields</a></td><td>Methods</td><td>Properties</td></tr></table>
<a name="PasDoc-Description"></a><h2 class="unit">Unit</h2>
<p class="unitlink">
<a href="Castle3D.html">Castle3D</a></p>
<h2 class="declaration">Declaration</h2>
<p class="declaration">
<code>type TRayCollisionNode = object(TObject)</code></p>
<h2 class="description">Description</h2>
<p>
Information about ray collision with a single 3D object. Everything (Point, <a class="normal" href="Castle3D.TRayCollisionNode.html#RayOrigin">RayOrigin</a>, <a class="normal" href="Castle3D.TRayCollisionNode.html#RayDirection">RayDirection</a>) is expressed in the local coordinates of given 3D object (in <a class="normal" href="Castle3D.TRayCollisionNode.html#Item">Item</a>).</p>
<a name="PasDoc-Hierarchy"></a><h2 class="hierarchy">Hierarchy</h2>
<ul class="hierarchy"><li class="ancestor">TObject</li>
<li class="thisitem">TRayCollisionNode</li></ul><h2 class="overview">Overview</h2>
<a name="PasDoc-Fields"></a><h3 class="summary">Fields</h3>
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<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code><b><a href="Castle3D.TRayCollisionNode.html#Item">Item</a></b>: <a href="Castle3D.T3D.html">T3D</a>;</code></td>
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<td class="itemcode"><code><b><a href="Castle3D.TRayCollisionNode.html#Point">Point</a></b>: <a href="CastleVectors.html#TVector3Single">TVector3Single</a>;</code></td>
</tr>
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<td class="itemcode"><code><b><a href="Castle3D.TRayCollisionNode.html#Triangle">Triangle</a></b>: <a href="CastleTriangles.html#P3DTriangle">P3DTriangle</a>;</code></td>
</tr>
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<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><code><b><a href="Castle3D.TRayCollisionNode.html#RayOrigin">RayOrigin</a></b>: <a href="CastleVectors.html#TVector3Single">TVector3Single</a>;</code></td>
</tr>
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<td class="itemcode"><code><b><a href="Castle3D.TRayCollisionNode.html#RayDirection">RayDirection</a></b>: <a href="CastleVectors.html#TVector3Single">TVector3Single</a>;</code></td>
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<h2 class="description">Description</h2>
<h3 class="detail">Fields</h3>
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<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="Item"></a><code><b>Item</b>: <a href="Castle3D.T3D.html">T3D</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Colliding 3D object.</p>
</td></tr>
</table>
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<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="Point"></a><code><b>Point</b>: <a href="CastleVectors.html#TVector3Single">TVector3Single</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Position, in local coordinate system of this 3D object, of the picked 3D point.
<p>If the ray hit empty space, this is undefined. Note that only MainScene is informed about pointing device events when the ray hit empty space.</p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="Triangle"></a><code><b>Triangle</b>: <a href="CastleTriangles.html#P3DTriangle">P3DTriangle</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Triangle that was hit. This triangle is always a part of <a class="normal" href="Castle3D.TRayCollisionNode.html#Item">Item</a>.
<p>If the ray hit empty space, this is <code>Nil</code>. Note that only MainScene is informed about pointing device events when the ray hit empty space.
<p>May also be <code>Nil</code> if RayCollision for the 3D object simply left it <code>Nil</code>. Right now, only <a class="normal" href="CastleScene.TCastleScene.html">TCastleScene</a> sets Triangle at all.</p>
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<td class="itemcode"><a name="RayOrigin"></a><code><b>RayOrigin</b>: <a href="CastleVectors.html#TVector3Single">TVector3Single</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Ray used to cause the collision.</p>
</td></tr>
</table>
<table class="detail wide_list">
<tr class="list">
<td class="visibility"><a href="legend.html"><img src="public.gif" alt="Public" title="Public"></a></td>
<td class="itemcode"><a name="RayDirection"></a><code><b>RayDirection</b>: <a href="CastleVectors.html#TVector3Single">TVector3Single</a>;</code></td>
</tr>
<tr><td colspan="2">
<p>
Ray used to cause the collision.</p>
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