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+<hr><h1>camera.cpp</h1><a href="camera_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
+00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
+00008 <font class="comment"> *</font>
+00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
+00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
+00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
+00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
+00013 <font class="comment"> * any later version.</font>
+00014 <font class="comment"></font>
+00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
+00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
+00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
+00018 <font class="comment"> * General Public License for more details.</font>
+00019 <font class="comment"></font>
+00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
+00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
+00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
+00023 <font class="comment"> * MA 02111-1307, USA.</font>
+00024 <font class="comment"> */</font>
+00025
+00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
+00027
+00028 <font class="preprocessor">#include "<a class="code" href="camera_8h.html">3d/camera.h</a>"</font>
+00029
+00030
+00031 <font class="keyword">namespace </font>NL3D
+00032 {
+00033
+00034
+00035 <font class="comment">// ***************************************************************************</font>
+<a name="l00036"></a><a class="code" href="classNL3D_1_1CCamera.html#d0">00036</a> <font class="keywordtype">void</font> CCamera::registerBasic()
+00037 {
+00038 CMOT::registerModel(<a class="code" href="namespaceNL3D.html#a18">CameraId</a>, <a class="code" href="namespaceNL3D.html#a276">TransformId</a>, CCamera::creator);
+00039 }
+00040
+00041
+00042 <font class="comment">// ***************************************************************************</font>
+<a name="l00043"></a><a class="code" href="classNL3D_1_1CCamera.html#b0">00043</a> CCamera::CCamera()
+00044 {
+00045 <a class="code" href="classNL3D_1_1CCamera.html#a0">setFrustum</a>(1.0f, 1.0f, 0.01f, 1.0f);
+00046
+00047 <font class="comment">// IAnimatable.</font>
+00048 IAnimatable::resize(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s4">AnimValueLast</a>);
+00049
+00050 <a class="code" href="classNL3D_1_1CCamera.html#o0">_FovAnimationEnabled</a>= <font class="keyword">false</font>;
+00051 <a class="code" href="classNL3D_1_1CCamera.html#o1">_TargetAnimationEnabled</a>= <font class="keyword">false</font>;
+00052 <a class="code" href="classNL3D_1_1CCamera.html#o2">_FovAnimationAspectRatio</a>= 4.0f/3.0f;
+00053
+00054 <font class="comment">// Default Anims.</font>
+00055 <a class="code" href="classNL3D_1_1CCamera.html#o3">_Fov</a>.Value= (float)NLMISC::Pi/2;
+00056 <a class="code" href="classNL3D_1_1CCamera.html#o4">_Target</a>.Value= CVector::Null;
+00057 <a class="code" href="classNL3D_1_1CCamera.html#o5">_Roll</a>.Value= 0;
+00058 }
+00059 <font class="comment">// ***************************************************************************</font>
+<a name="l00060"></a><a class="code" href="classNL3D_1_1CCamera.html#a2">00060</a> <font class="keywordtype">void</font> CCamera::setFrustum(<font class="keywordtype">float</font> left, <font class="keywordtype">float</font> right, <font class="keywordtype">float</font> bottom, <font class="keywordtype">float</font> top, <font class="keywordtype">float</font> znear, <font class="keywordtype">float</font> zfar, <font class="keywordtype">bool</font> perspective)
+00061 {
+00062 <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.init( left, right,bottom, top, znear, zfar, perspective);
+00063 }
+00064 <font class="comment">// ***************************************************************************</font>
+<a name="l00065"></a><a class="code" href="classNL3D_1_1CCamera.html#a3">00065</a> <font class="keywordtype">void</font> CCamera::setFrustum(<font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>, <font class="keywordtype">float</font> znear, <font class="keywordtype">float</font> zfar, <font class="keywordtype">bool</font> perspective)
+00066 {
+00067 <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.init(<a class="code" href="driver__opengl__extension__def_8h.html#a389">width</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a390">height</a>, znear, zfar, perspective);
+00068 }
+00069 <font class="comment">// ***************************************************************************</font>
+<a name="l00070"></a><a class="code" href="classNL3D_1_1CCamera.html#a7">00070</a> <font class="keywordtype">void</font> CCamera::setPerspective(<font class="keywordtype">float</font> fov, <font class="keywordtype">float</font> aspectRatio, <font class="keywordtype">float</font> znear, <font class="keywordtype">float</font> zfar)
+00071 {
+00072 <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.initPerspective(fov, aspectRatio, znear, zfar);
+00073 }
+00074 <font class="comment">// ***************************************************************************</font>
+<a name="l00075"></a><a class="code" href="classNL3D_1_1CCamera.html#a4">00075</a> <font class="keywordtype">void</font> CCamera::getFrustum(<font class="keywordtype">float</font> &amp;left, <font class="keywordtype">float</font> &amp;right, <font class="keywordtype">float</font> &amp;bottom, <font class="keywordtype">float</font> &amp;top, <font class="keywordtype">float</font> &amp;znear, <font class="keywordtype">float</font> &amp;zfar)<font class="keyword"> const</font>
+00076 <font class="keyword"></font>{
+00077 left= <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Left;
+00078 right= <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Right;
+00079 bottom= <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Bottom;
+00080 top= <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Top;
+00081 znear= <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Near;
+00082 zfar= <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Far;
+00083 }
+00084 <font class="comment">// ***************************************************************************</font>
+<a name="l00085"></a><a class="code" href="classNL3D_1_1CCamera.html#a5">00085</a> <font class="keywordtype">bool</font> CCamera::isOrtho()<font class="keyword"> const</font>
+00086 <font class="keyword"></font>{
+00087 <font class="keywordflow">return</font> !<a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Perspective;
+00088 }
+00089 <font class="comment">// ***************************************************************************</font>
+<a name="l00090"></a><a class="code" href="classNL3D_1_1CCamera.html#a6">00090</a> <font class="keywordtype">bool</font> CCamera::isPerspective()<font class="keyword"> const</font>
+00091 <font class="keyword"></font>{
+00092 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Perspective;
+00093 }
+00094
+00095
+00096 <font class="comment">// ***************************************************************************</font>
+00097 <font class="comment">// ***************************************************************************</font>
+00098 <font class="comment">// Anims.</font>
+00099 <font class="comment">// ***************************************************************************</font>
+00100 <font class="comment">// ***************************************************************************</font>
+00101
+00102
+00103
+00104 <font class="comment">// ***************************************************************************</font>
+<a name="l00105"></a><a class="code" href="classNL3D_1_1CCamera.html#z391_1">00105</a> IAnimatedValue* CCamera::getValue (uint valueId)
+00106 {
+00107 <font class="comment">// what value ?</font>
+00108 <font class="keywordflow">switch</font> (valueId)
+00109 {
+00110 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s1">FovValue</a>: <font class="keywordflow">return</font> &amp;<a class="code" href="classNL3D_1_1CCamera.html#o3">_Fov</a>;
+00111 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s2">TargetValue</a>: <font class="keywordflow">return</font> &amp;<a class="code" href="classNL3D_1_1CCamera.html#o4">_Target</a>;
+00112 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s3">RollValue</a>: <font class="keywordflow">return</font> &amp;<a class="code" href="classNL3D_1_1CCamera.html#o5">_Roll</a>;
+00113 }
+00114
+00115 <font class="keywordflow">return</font> CTransform::getValue(valueId);
+00116 }
+00117 <font class="comment">// ***************************************************************************</font>
+<a name="l00118"></a><a class="code" href="classNL3D_1_1CCamera.html#z391_2">00118</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *CCamera::getValueName (uint valueId)<font class="keyword"> const</font>
+00119 <font class="keyword"></font>{
+00120 <font class="comment">// what value ?</font>
+00121 <font class="keywordflow">switch</font> (valueId)
+00122 {
+00123 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s1">FovValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CCamera.html#z390_0">getFovValueName</a>();
+00124 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s2">TargetValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CCamera.html#z390_1">getTargetValueName</a>();
+00125 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s3">RollValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CCamera.html#z390_2">getRollValueName</a>();
+00126 }
+00127
+00128 <font class="keywordflow">return</font> CTransform::getValueName(valueId);
+00129 }
+00130
+00131 <font class="comment">// ***************************************************************************</font>
+00132 CTrackDefaultFloat CCamera::DefaultFov( (<font class="keywordtype">float</font>)NLMISC::Pi/2 );
+00133 CTrackDefaultVector CCamera::DefaultTarget( CVector::Null );
+00134 CTrackDefaultFloat CCamera::DefaultRoll( 0 );
+00135
+00136
+<a name="l00137"></a><a class="code" href="classNL3D_1_1CCamera.html#z391_3">00137</a> ITrack* CCamera::getDefaultTrack (uint valueId)
+00138 {
+00139 <font class="comment">// what value ?</font>
+00140 <font class="keywordflow">switch</font> (valueId)
+00141 {
+00142 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s1">FovValue</a>: <font class="keywordflow">return</font> &amp;<a class="code" href="classNL3D_1_1CCamera.html#r0">DefaultFov</a>;
+00143 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s2">TargetValue</a>: <font class="keywordflow">return</font> &amp;<a class="code" href="classNL3D_1_1CCamera.html#r1">DefaultTarget</a>;
+00144 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1CCamera.html#z391_0s3">RollValue</a>: <font class="keywordflow">return</font> &amp;<a class="code" href="classNL3D_1_1CCamera.html#r2">DefaultRoll</a>;
+00145 }
+00146
+00147 <font class="keywordflow">return</font> CTransform::getDefaultTrack(valueId);
+00148 }
+00149 <font class="comment">// ***************************************************************************</font>
+<a name="l00150"></a><a class="code" href="classNL3D_1_1CCamera.html#z391_4">00150</a> <font class="keywordtype">void</font> CCamera::registerToChannelMixer(CChannelMixer *chanMixer, <font class="keyword">const</font> std::string &amp;prefix)
+00151 {
+00152 <font class="comment">// For CCamera, channels are not detailled.</font>
+00153 <a class="code" href="classNL3D_1_1IAnimatable.html#b0">addValue</a>(chanMixer, <a class="code" href="classNL3D_1_1CCamera.html#z391_0s1">FovValue</a>, <a class="code" href="classNL3D_1_1CCamera.html#z391_0s0">OwnerBit</a>, prefix, <font class="keyword">false</font>);
+00154 <a class="code" href="classNL3D_1_1IAnimatable.html#b0">addValue</a>(chanMixer, <a class="code" href="classNL3D_1_1CCamera.html#z391_0s2">TargetValue</a>, <a class="code" href="classNL3D_1_1CCamera.html#z391_0s0">OwnerBit</a>, prefix, <font class="keyword">false</font>);
+00155 <a class="code" href="classNL3D_1_1IAnimatable.html#b0">addValue</a>(chanMixer, <a class="code" href="classNL3D_1_1CCamera.html#z391_0s3">RollValue</a>, <a class="code" href="classNL3D_1_1CCamera.html#z391_0s0">OwnerBit</a>, prefix, <font class="keyword">false</font>);
+00156
+00157 CTransform::registerToChannelMixer(chanMixer, prefix);
+00158 }
+00159
+00160
+00161
+00162 <font class="comment">// ***************************************************************************</font>
+<a name="l00163"></a><a class="code" href="classNL3D_1_1CCamera.html#b2">00163</a> <font class="keywordtype">void</font> CCamera::update()
+00164 {
+00165 CTransform::update();
+00166
+00167 <font class="comment">// test animations</font>
+00168 <font class="keywordflow">if</font>(IAnimatable::isTouched(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s0">OwnerBit</a>))
+00169 {
+00170 <font class="comment">// FOV.</font>
+00171 <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1CCamera.html#o0">_FovAnimationEnabled</a> &amp;&amp; IAnimatable::isTouched(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s1">FovValue</a>))
+00172 {
+00173 <font class="comment">// keep the same near/far.</font>
+00174 <a class="code" href="classNL3D_1_1CCamera.html#a7">setPerspective</a>(<a class="code" href="classNL3D_1_1CCamera.html#o3">_Fov</a>.Value, <a class="code" href="classNL3D_1_1CCamera.html#o2">_FovAnimationAspectRatio</a>, <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Near, <a class="code" href="classNL3D_1_1CCamera.html#n0">_Frustum</a>.Far);
+00175 }
+00176
+00177 <font class="comment">// Target / Roll.</font>
+00178 <font class="comment">// If target/Roll is animated, compute our own quaternion.</font>
+00179 <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1CCamera.html#o1">_TargetAnimationEnabled</a> &amp;&amp; (IAnimatable::isTouched(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s2">TargetValue</a>) || IAnimatable::isTouched(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s3">RollValue</a>)) )
+00180 {
+00181 CQuat q0, q1;
+00182
+00183 <font class="comment">// compute rotation of target.</font>
+00184 CMatrix mat;
+00185 mat.setRot(CVector::I, <a class="code" href="classNL3D_1_1CCamera.html#o4">_Target</a>.Value, CVector::K);
+00186 mat.normalize(CMatrix::YZX);
+00187 q0= mat.getRot();
+00188
+00189 <font class="comment">// compute roll rotation.</font>
+00190 q1.setAngleAxis(CVector::J, <a class="code" href="classNL3D_1_1CCamera.html#o5">_Roll</a>.Value);
+00191
+00192
+00193 <font class="comment">// combine and set rotquat!!</font>
+00194 <a class="code" href="classNL3D_1_1ITransformable.html#z869_4">setRotQuat</a>(q0*q1);
+00195 }
+00196
+00197
+00198 IAnimatable::clearFlag(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s1">FovValue</a>);
+00199 IAnimatable::clearFlag(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s2">TargetValue</a>);
+00200 IAnimatable::clearFlag(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s3">RollValue</a>);
+00201
+00202 <font class="comment">// We are OK!</font>
+00203 IAnimatable::clearFlag(<a class="code" href="classNL3D_1_1CCamera.html#z391_0s0">OwnerBit</a>);
+00204 }
+00205 }
+00206
+00207
+00208 }
+00209
+</pre></div>
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