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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> &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="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> &<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> &<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> &<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> &<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> &<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> &<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 &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> && 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> && (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
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