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<hr><h1>OgreOctreeCamera.cpp</h1><a href="OgreOctreeCamera_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">/***************************************************************************</font>
00002 <font class="comment">octreecamera.cpp - description</font>
00003 <font class="comment">-------------------</font>
00004 <font class="comment">begin : Fri Sep 27 2002</font>
00005 <font class="comment">copyright : (C) 2002 by Jon Anderson</font>
00006 <font class="comment">email : janders@users.sf.net</font>
00007 <font class="comment">***************************************************************************/</font>
00008
00009 <font class="comment">/***************************************************************************</font>
00010 <font class="comment">* *</font>
00011 <font class="comment">* This program is free software; you can redistribute it and/or modify *</font>
00012 <font class="comment">* it under the terms of the GNU Lesser General Public License as *</font>
00013 <font class="comment">* published by the Free Software Foundation; either version 2 of the * </font>
00014 <font class="comment">* License, or (at your option) any later version. *</font>
00015 <font class="comment">* *</font>
00016 <font class="comment">***************************************************************************/</font>
00017
00018 <font class="preprocessor">#include <<a class="code" href="OgreMath_8h.html">OgreMath.h</a>></font>
00019 <font class="preprocessor">#include <<a class="code" href="OgreAxisAlignedBox_8h.html">OgreAxisAlignedBox.h</a>></font>
00020 <font class="preprocessor">#include <<a class="code" href="OgreRoot_8h.html">OgreRoot.h</a>></font>
00021
00022 <font class="preprocessor">#include <<a class="code" href="OgreOctreeCamera_8h.html">OgreOctreeCamera.h</a>></font>
00023
00024 <font class="keyword">namespace </font>Ogre
00025 {
<a name="l00026"></a><a class="code" href="OgreOctreeCamera_8cpp.html#a0">00026</a> <font class="preprocessor">#define POSITION_BINDING 0</font>
<a name="l00027"></a><a class="code" href="OgreOctreeCamera_8cpp.html#a1">00027</a> <font class="preprocessor"></font><font class="preprocessor">#define COLOUR_BINDING 1</font>
00028 <font class="preprocessor"></font>
<a name="l00029"></a><a class="code" href="namespaceOgre.html#a476">00029</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <a class="code" href="namespaceOgre.html#a476">red</a> = 0xFF0000FF;
00030
<a name="l00031"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraq0">00031</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> OctreeCamera::mIndexes[ 24 ] = {0, 1, 1, 2, 2, 3, 3, 0, <font class="comment">//back</font>
00032 0, 6, 6, 5, 5, 1, <font class="comment">//left</font>
00033 3, 7, 7, 4, 4, 2, <font class="comment">//right</font>
00034 6, 7, 5, 4 }; <font class="comment">//front</font>
00035
<a name="l00036"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraq1">00036</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> OctreeCamera::mColors[ 8 ] = {<a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>, <a class="code" href="namespaceOgre.html#a476">red</a>};
00037
<a name="l00038"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa0">00038</a> OctreeCamera::OctreeCamera( <font class="keyword">const</font> <a class="code" href="classOgre_1_1String.html">String</a>& name, <a class="code" href="classOgre_1_1SceneManager.html">SceneManager</a>* sm ) : <a class="code" href="classOgre_1_1Camera.html">Camera</a>( name, sm )
00039 {
00040 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameran1">mMaterial</a> = sm->getMaterial(<font class="stringliteral">"BaseWhite"</font>);
00041
00042 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a> = <font class="keyword">new</font> <a class="code" href="classOgre_1_1VertexData.html">VertexData</a>;
00043 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam2">vertexStart</a> = 0;
00044 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam3">vertexCount</a> = 8;
00045
00046 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a> = <font class="keyword">new</font> <a class="code" href="classOgre_1_1IndexData.html">IndexData</a>;
00047 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a>-><a class="code" href="classOgre_1_1IndexData.html#Ogre_1_1IndexDatam1">indexStart</a> = 0;
00048 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a>-><a class="code" href="classOgre_1_1IndexData.html#Ogre_1_1IndexDatam2">indexCount</a> = 24;
00049
00050 <a class="code" href="classOgre_1_1VertexDeclaration.html">VertexDeclaration</a>* decl = <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam0">vertexDeclaration</a>;
00051 <a class="code" href="classOgre_1_1VertexBufferBinding.html">VertexBufferBinding</a>* bind = <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam1">vertexBufferBinding</a>;
00052
00053 decl-><a class="code" href="classOgre_1_1VertexDeclaration.html#Ogre_1_1VertexDeclarationa3">addElement</a>(<a class="code" href="OgreOctreeCamera_8cpp.html#a0">POSITION_BINDING</a>, 0, <a class="code" href="namespaceOgre.html#a631a154">VET_FLOAT3</a>, <a class="code" href="namespaceOgre.html#a630a143">VES_POSITION</a>);
00054 decl-><a class="code" href="classOgre_1_1VertexDeclaration.html#Ogre_1_1VertexDeclarationa3">addElement</a>(<a class="code" href="OgreOctreeCamera_8cpp.html#a1">COLOUR_BINDING</a>, 0, <a class="code" href="namespaceOgre.html#a631a156">VET_COLOUR</a>, <a class="code" href="namespaceOgre.html#a630a147">VES_DIFFUSE</a>);
00055
00056 <a class="code" href="classOgre_1_1HardwareVertexBufferSharedPtr.html">HardwareVertexBufferSharedPtr</a> vbuf =
00057 HardwareBufferManager::getSingleton().createVertexBuffer(
00058 decl-><a class="code" href="classOgre_1_1VertexDeclaration.html#Ogre_1_1VertexDeclarationa9">getVertexSize</a>(<a class="code" href="OgreOctreeCamera_8cpp.html#a0">POSITION_BINDING</a>),
00059 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam3">vertexCount</a>,
00060 HardwareBuffer::HBU_STATIC_WRITE_ONLY);
00061
00062 bind-><a class="code" href="classOgre_1_1VertexBufferBinding.html#Ogre_1_1VertexBufferBindinga2">setBinding</a>(<a class="code" href="OgreOctreeCamera_8cpp.html#a0">POSITION_BINDING</a>, vbuf);
00063
00064 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a>-><a class="code" href="classOgre_1_1IndexData.html#Ogre_1_1IndexDatam0">indexBuffer</a> =
00065 HardwareBufferManager::getSingleton().createIndexBuffer(
00066 HardwareIndexBuffer::IT_16BIT,
00067 24, HardwareBuffer::HBU_STATIC_WRITE_ONLY);
00068
00069 }
00070
<a name="l00071"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa1">00071</a> OctreeCamera::~OctreeCamera()
00072 {
00073 <font class="keywordflow">if</font>(mVertexData)
00074 <font class="keyword">delete</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>;
00075 <font class="keywordflow">if</font>(mIndexData)
00076 <font class="keyword">delete</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a>;
00077 }
00078
<a name="l00079"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa2">00079</a> OctreeCamera::Visibility OctreeCamera::getVisibility( <font class="keyword">const</font> <a class="code" href="classOgre_1_1AxisAlignedBox.html">AxisAlignedBox</a> &bound )
00080 {
00081
00082 <font class="comment">// Null boxes always invisible</font>
00083 <font class="keywordflow">if</font> ( bound.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa16">isNull</a>() )
00084 <font class="keywordflow">return</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameras3Ogre_1_1OctreeCameras0">NONE</a>;
00085
00086 <font class="comment">// Make any pending updates to the calculated frustum</font>
00087 <a class="code" href="classOgre_1_1Camera.html#Ogre_1_1OctreeCamerab2">updateView</a>();
00088
00089 <font class="comment">// Get corners of the box</font>
00090 <font class="keyword">const</font> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a>* pCorners = bound.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa11">getAllCorners</a>();
00091
00092 <font class="comment">// For each plane, see if all points are on the negative side</font>
00093 <font class="comment">// If so, object is not visible.</font>
00094 <font class="comment">// If one or more are, it's partial.</font>
00095 <font class="comment">// If all aren't, full</font>
00096
00097 <font class="keywordtype">int</font> corners[ 8 ] = {0, 4, 3, 5, 2, 6, 1, 7};
00098
00099 <font class="keywordtype">int</font> planes[ 6 ] = {<a class="code" href="namespaceOgre.html#a625a130">FRUSTUM_PLANE_TOP</a>, <a class="code" href="namespaceOgre.html#a625a131">FRUSTUM_PLANE_BOTTOM</a>,
00100 <a class="code" href="namespaceOgre.html#a625a128">FRUSTUM_PLANE_LEFT</a>, <a class="code" href="namespaceOgre.html#a625a129">FRUSTUM_PLANE_RIGHT</a>,
00101 <a class="code" href="namespaceOgre.html#a625a127">FRUSTUM_PLANE_FAR</a>, <a class="code" href="namespaceOgre.html#a625a126">FRUSTUM_PLANE_NEAR</a> };
00102
00103 <font class="keywordtype">bool</font> all_inside = <font class="keyword">true</font>;
00104
00105 <font class="keywordflow">for</font> ( <font class="keywordtype">int</font> plane = 0; plane < 6; ++plane )
00106 {
00107
00108 <font class="keywordtype">bool</font> all_outside = <font class="keyword">true</font>;
00109
00110 <font class="keywordtype">float</font> distance = 0;
00111
00112 <font class="keywordflow">for</font> ( <font class="keywordtype">int</font> corner = 0; corner < 8; ++corner )
00113 {
00114 distance = <a class="code" href="classOgre_1_1Camera.html#Ogre_1_1OctreeCameran16">mFrustumPlanes</a>[ planes[ plane ] ].<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planea6">getDistance</a>( pCorners[ corners[ corner ] ] );
00115 all_outside = all_outside && ( distance < 0 );
00116 all_inside = all_inside && ( distance >= 0 );
00117
00118 <font class="keywordflow">if</font> ( !all_outside && !all_inside )
00119 <font class="keywordflow">break</font>;
00120 }
00121
00122 <font class="keywordflow">if</font> ( all_outside )
00123 <font class="keywordflow">return</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameras3Ogre_1_1OctreeCameras0">NONE</a>;
00124 }
00125
00126 <font class="keywordflow">if</font> ( all_inside )
00127 <font class="keywordflow">return</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameras3Ogre_1_1OctreeCameras2">FULL</a>;
00128 <font class="keywordflow">else</font>
00129 <font class="keywordflow">return</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameras3Ogre_1_1OctreeCameras1">PARTIAL</a>;
00130
00131 }
00132
<a name="l00133"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa3">00133</a> <font class="keywordtype">void</font> OctreeCamera::getRenderOperation( <a class="code" href="classOgre_1_1RenderOperation.html">RenderOperation</a>& op )
00134 {
00135 std::cerr << <font class="stringliteral">"OctreeCamera::getRenderOperation\n"</font>;
00136
00137 <a class="code" href="namespaceOgre.html#a349">Real</a> * r = <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameran0">mCorners</a>;
00138 <font class="comment">//could also project pts using inverse of 4x4 Projection matrix, but no inverse function on that.</font>
00139 <font class="comment">/*</font>
00140 <font class="comment"> Matrix4 invP =getProjectionMatrix().Inverse();</font>
00141 <font class="comment"></font>
00142 <font class="comment"> Vector3 f1(-1,-1,-1); f1 = f1*invP;</font>
00143 <font class="comment"> Vector3 f2(-1, 1,-1); f2 = f2*invP;</font>
00144 <font class="comment"> Vector3 f3( 1, 1,-1); f3 = f3*invP;</font>
00145 <font class="comment"> Vector3 f4( 1,-1,-1); f4 = f4*invP;</font>
00146 <font class="comment"></font>
00147 <font class="comment"> Vector3 b1(-1,-1,1); b1 = b1*invP;</font>
00148 <font class="comment"> Vector3 b2(-1, 1,1); b2 = b2*invP;</font>
00149 <font class="comment"> Vector3 b3( 1, 1,1); b3 = b3*invP;</font>
00150 <font class="comment"> Vector3 b4( 1,-1,1); b4 = b4*invP;</font>
00151 <font class="comment"> */</font>
00152 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a127">FRUSTUM_PLANE_FAR</a>, <a class="code" href="namespaceOgre.html#a625a128">FRUSTUM_PLANE_LEFT</a>, <a class="code" href="namespaceOgre.html#a625a131">FRUSTUM_PLANE_BOTTOM</a> ); r += 3;
00153 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a127">FRUSTUM_PLANE_FAR</a>, <a class="code" href="namespaceOgre.html#a625a128">FRUSTUM_PLANE_LEFT</a>, <a class="code" href="namespaceOgre.html#a625a130">FRUSTUM_PLANE_TOP</a> ); r += 3;
00154 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a127">FRUSTUM_PLANE_FAR</a>, <a class="code" href="namespaceOgre.html#a625a129">FRUSTUM_PLANE_RIGHT</a>, <a class="code" href="namespaceOgre.html#a625a130">FRUSTUM_PLANE_TOP</a> ); r += 3;
00155 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a127">FRUSTUM_PLANE_FAR</a>, <a class="code" href="namespaceOgre.html#a625a129">FRUSTUM_PLANE_RIGHT</a>, <a class="code" href="namespaceOgre.html#a625a131">FRUSTUM_PLANE_BOTTOM</a> ); r += 3;
00156
00157 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a126">FRUSTUM_PLANE_NEAR</a>, <a class="code" href="namespaceOgre.html#a625a129">FRUSTUM_PLANE_RIGHT</a>, <a class="code" href="namespaceOgre.html#a625a130">FRUSTUM_PLANE_TOP</a> ); r += 3;
00158 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a126">FRUSTUM_PLANE_NEAR</a>, <a class="code" href="namespaceOgre.html#a625a128">FRUSTUM_PLANE_LEFT</a>, <a class="code" href="namespaceOgre.html#a625a130">FRUSTUM_PLANE_TOP</a> ); r += 3;
00159 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a126">FRUSTUM_PLANE_NEAR</a>, <a class="code" href="namespaceOgre.html#a625a128">FRUSTUM_PLANE_LEFT</a>, <a class="code" href="namespaceOgre.html#a625a131">FRUSTUM_PLANE_BOTTOM</a> ); r += 3;
00160 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">_getCorner</a>( r, <a class="code" href="namespaceOgre.html#a625a126">FRUSTUM_PLANE_NEAR</a>, <a class="code" href="namespaceOgre.html#a625a129">FRUSTUM_PLANE_RIGHT</a>, <a class="code" href="namespaceOgre.html#a625a131">FRUSTUM_PLANE_BOTTOM</a> );
00161
00162 <a class="code" href="classOgre_1_1Camera.html#Ogre_1_1OctreeCamerab2">updateView</a>();
00163
00164 <a class="code" href="classOgre_1_1HardwareVertexBufferSharedPtr.html">HardwareVertexBufferSharedPtr</a> vbuf =
00165 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam1">vertexBufferBinding</a>-><a class="code" href="classOgre_1_1VertexBufferBinding.html#Ogre_1_1VertexBufferBindinga6">getBuffer</a>(<a class="code" href="OgreOctreeCamera_8cpp.html#a0">POSITION_BINDING</a>);
00166
00167 vbuf->writeData(0, 8 * <font class="keyword">sizeof</font>(<a class="code" href="namespaceOgre.html#a349">Real</a>), <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameran0">mCorners</a>);
00168
00169 vbuf = <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>-><a class="code" href="classOgre_1_1VertexData.html#Ogre_1_1VertexDatam1">vertexBufferBinding</a>-><a class="code" href="classOgre_1_1VertexBufferBinding.html#Ogre_1_1VertexBufferBindinga6">getBuffer</a>(<a class="code" href="OgreOctreeCamera_8cpp.html#a1">COLOUR_BINDING</a>);
00170 vbuf->writeData(0, 8 * <font class="keyword">sizeof</font>(<a class="code" href="namespaceOgre.html#a53">RGBA</a>), <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraq1">mColors</a>);
00171
00172 <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a>-><a class="code" href="classOgre_1_1IndexData.html#Ogre_1_1IndexDatam0">indexBuffer</a>->writeData(0, 24 * <font class="keyword">sizeof</font>(<font class="keywordtype">unsigned</font> <font class="keywordtype">short</font>), <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraq0">mIndexes</a>);
00173
00174 op.<a class="code" href="classOgre_1_1RenderOperation.html#Ogre_1_1RenderOperationm2">useIndexes</a> = <font class="keyword">true</font>;
00175 op.<a class="code" href="classOgre_1_1RenderOperation.html#Ogre_1_1RenderOperationm1">operationType</a> = RenderOperation::OT_LINE_LIST;
00176 op.<a class="code" href="classOgre_1_1RenderOperation.html#Ogre_1_1RenderOperationm0">vertexData</a> = <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao0">mVertexData</a>;
00177 op.<a class="code" href="classOgre_1_1RenderOperation.html#Ogre_1_1RenderOperationm3">indexData</a> = <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerao1">mIndexData</a>;
00178
00179 <font class="comment">/* </font>
00180 <font class="comment"> rend.useIndexes = true;</font>
00181 <font class="comment"> rend.numTextureCoordSets = 0; // no textures</font>
00182 <font class="comment"> rend.vertexOptions = LegacyRenderOperation::VO_DIFFUSE_COLOURS;</font>
00183 <font class="comment"> rend.numVertices = 8;</font>
00184 <font class="comment"> rend.numIndexes = 24;</font>
00185 <font class="comment"></font>
00186 <font class="comment"> rend.pVertices = mCorners;</font>
00187 <font class="comment"> rend.pIndexes = mIndexes;</font>
00188 <font class="comment"> rend.pDiffuseColour = mColors;</font>
00189 <font class="comment"> */</font>
00190
00191 }
00192
<a name="l00193"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCamerab0">00193</a> <font class="keywordtype">void</font> OctreeCamera::_getCorner( <a class="code" href="namespaceOgre.html#a349">Real</a> *r, <a class="code" href="namespaceOgre.html#a625">FrustumPlane</a> pp1, <a class="code" href="namespaceOgre.html#a625">FrustumPlane</a> pp2, <a class="code" href="namespaceOgre.html#a625">FrustumPlane</a> pp3 )
00194 {
00195 <font class="comment">//intersect the three planes to get a point.</font>
00196 <font class="comment">//this could be faster since we know what Z is, but showing the camera is only a debug tool...</font>
00197
00198
00199 <a class="code" href="classOgre_1_1Plane.html">Plane</a> p1 = <a class="code" href="classOgre_1_1Camera.html#Ogre_1_1OctreeCameran16">mFrustumPlanes</a>[ pp1 ];
00200 <a class="code" href="classOgre_1_1Plane.html">Plane</a> p2 = mFrustumPlanes[ pp2 ];
00201 <a class="code" href="classOgre_1_1Plane.html">Plane</a> p3 = mFrustumPlanes[ pp3 ];
00202
00203 <a class="code" href="classOgre_1_1Matrix3.html">Matrix3</a> mdet ( p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> , p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a> , p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> ,
00204 p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> , p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a> , p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> ,
00205 p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> , p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a> , p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> );
00206
00207 <font class="keywordtype">float</font> det = mdet.<a class="code" href="classOgre_1_1Matrix3.html#Ogre_1_1Matrix3a21">Determinant</a> ();
00208
00209 <font class="keywordflow">if</font> ( det == 0 ) <font class="keywordflow">return</font> ; <font class="comment">//some planes are parallel.</font>
00210
00211 <a class="code" href="classOgre_1_1Matrix3.html">Matrix3</a> mx ( -p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a> , p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a> , p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a>,
00212 -p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>, p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a> , p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a>,
00213 -p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>, p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a> , p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> );
00214
00215 <font class="keywordtype">float</font> xdet = mx.<a class="code" href="classOgre_1_1Matrix3.html#Ogre_1_1Matrix3a21">Determinant</a>();
00216
00217 <a class="code" href="classOgre_1_1Matrix3.html">Matrix3</a> my ( p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a>, -p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>, p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a>,
00218 p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a>, -p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>, p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a>,
00219 p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a>, -p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>, p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> );
00220
00221 <font class="keywordtype">float</font> ydet = my.<a class="code" href="classOgre_1_1Matrix3.html#Ogre_1_1Matrix3a21">Determinant</a> ();
00222
00223 <a class="code" href="classOgre_1_1Matrix3.html">Matrix3</a> mz ( p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a>, p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a>, -p1.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>,
00224 p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a>, p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a>, -p2.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a>,
00225 p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a>, p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem0">normal</a>.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m1">y</a>, -p3.<a class="code" href="classOgre_1_1Plane.html#Ogre_1_1Planem1">d</a> );
00226
00227 <font class="keywordtype">float</font> zdet = mz.<a class="code" href="classOgre_1_1Matrix3.html#Ogre_1_1Matrix3a21">Determinant</a> ();
00228
00229 r[ 0 ] = xdet / det;
00230
00231 r[ 1 ] = ydet / det;
00232
00233 r[ 2 ] = zdet / det;
00234
00235 }
00236
<a name="l00237"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa9">00237</a> <a class="code" href="namespaceOgre.html#a349">Real</a> OctreeCamera::getSquaredViewDepth(<font class="keyword">const</font> <a class="code" href="classOgre_1_1Camera.html">Camera</a>* cam)<font class="keyword"> const</font>
00238 <font class="keyword"></font>{
00239 <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> dist = cam-><a class="code" href="classOgre_1_1Camera.html#Ogre_1_1OctreeCameraa54">getDerivedPosition</a>() - this-><a class="code" href="classOgre_1_1Camera.html#Ogre_1_1OctreeCameraa54">getDerivedPosition</a>();
00240 <font class="keywordflow">return</font> dist.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3a22">squaredLength</a>();
00241 }
<a name="l00242"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa4">00242</a> <a class="code" href="classOgre_1_1Material.html">Material</a>* OctreeCamera::getMaterial(<font class="keywordtype">void</font>)<font class="keyword"> const</font>
00243 <font class="keyword"></font>{
00244 <font class="keywordflow">return</font> <a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameran1">mMaterial</a>;
00245 }
00246
<a name="l00247"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa5">00247</a> <font class="keywordtype">void</font> OctreeCamera::getWorldTransforms(<a class="code" href="classOgre_1_1Matrix4.html">Matrix4</a>* xform)<font class="keyword"> const</font>
00248 <font class="keyword"></font>{
00249 xform[0] = Matrix4::IDENTITY;
00250 }
00251
<a name="l00252"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa6">00252</a> <font class="keyword">const</font> <a class="code" href="classOgre_1_1Quaternion.html">Quaternion</a>& OctreeCamera::getWorldOrientation(<font class="keywordtype">void</font>)<font class="keyword"> const</font>
00253 <font class="keyword"></font>{
00254 <font class="keywordflow">return</font> Quaternion::IDENTITY;
00255 }
<a name="l00256"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa7">00256</a> <font class="keyword">const</font> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a>& OctreeCamera::getWorldPosition(<font class="keywordtype">void</font>)<font class="keyword"> const</font>
00257 <font class="keyword"></font>{
00258 <font class="keywordflow">return</font> Vector3::ZERO;
00259 }
<a name="l00260"></a><a class="code" href="classOgre_1_1OctreeCamera.html#Ogre_1_1OctreeCameraa8">00260</a> <font class="keyword">const</font> <a class="code" href="namespaceOgre.html#a56">LightList</a>& OctreeCamera::getLights(<font class="keywordtype">void</font>)<font class="keyword"> const</font>
00261 <font class="keyword"></font>{
00262 <font class="comment">// N/A</font>
00263 <font class="keyword">static</font> <a class="code" href="namespaceOgre.html#a56">LightList</a> ll;
00264 <font class="keywordflow">return</font> ll;
00265 }
00266
00267 }
00268
00269
00270
00271
</pre></div><p>
Copyright © 2002-2003 by The OGRE Team<br />
Last modified Wed Jan 21 00:10:19 2004
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