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00043 #include <cstdlib>
00044 #include <cstdio>
00045
00046 #include "OSGConfig.h"
00047 #include "OSGLog.h"
00048
00049 #include "OSGGL.h"
00050
00051 #include "OSGNode.h"
00052 #include "OSGViewport.h"
00053 #include "OSGWindow.h"
00054 #include "OSGLine.h"
00055
00056 #include "OSGCamera.h"
00057
00058 OSG_USING_NAMESPACE
00059
00060
00061
00062
00063
00064
00065
00066
00067
00068
00069 void Camera::initMethod(InitPhase ePhase)
00070 {
00071 Inherited::initMethod(ePhase);
00072 }
00073
00074
00075
00076
00077
00078 Camera::Camera(void) :
00079 Inherited()
00080 {
00081 }
00082
00083 Camera::Camera(const Camera &source) :
00084 Inherited(source)
00085 {
00086 }
00087
00088 Camera::~Camera(void)
00089 {
00090 }
00091
00092 void Camera::changed(ConstFieldMaskArg whichField,
00093 UInt32 origin,
00094 BitVector details)
00095 {
00096 Inherited::changed(whichField, origin, details);
00097 }
00098
00099
00100 #ifdef OSG_OLD_RENDER_ACTION
00101
00102
00107 void Camera::setup( DrawActionBase *OSG_CHECK_ARG(action),
00108 const Viewport &port )
00109 {
00110 Matrixr m, t;
00111
00112
00113
00114 getProjection (m, port.getPixelWidth(), port.getPixelHeight());
00115 getProjectionTranslation(t, port.getPixelWidth(), port.getPixelHeight());
00116
00117 m.mult(t);
00118
00119
00120
00121 glMatrixMode (GL_PROJECTION);
00122 GLP::glLoadMatrixf(m.getValues());
00123
00124
00125
00126 getViewing(m, port.getPixelWidth(), port.getPixelHeight());
00127
00128
00129
00130 glMatrixMode (GL_MODELVIEW );
00131 GLP::glLoadMatrixf(m.getValues());
00132 }
00133
00137 void Camera::setupProjection( DrawActionBase *OSG_CHECK_ARG(action),
00138 const Viewport &port )
00139 {
00140 Matrixr m, t;
00141
00142
00143
00144 getProjection (m, port.getPixelWidth(), port.getPixelHeight());
00145 getProjectionTranslation(t, port.getPixelWidth(), port.getPixelHeight());
00146
00147 m.mult(t);
00148
00149
00150
00151 glMatrixMode (GL_PROJECTION);
00152 GLP::glLoadMatrixf(m.getValues());
00153 }
00154
00158 #endif
00159
00163 void Camera::getProjection(Matrixr &OSG_CHECK_ARG(result),
00164 UInt32 OSG_CHECK_ARG(width ),
00165 UInt32 OSG_CHECK_ARG(height))
00166 {
00167 SFATAL << "Camera::getProjection: NIY" << std::endl;
00168 }
00169
00174 void Camera::getProjectionTranslation(Matrixr &result,
00175 UInt32 OSG_CHECK_ARG(width ),
00176 UInt32 OSG_CHECK_ARG(height))
00177 {
00178 result.setIdentity();
00179 }
00180
00185 void Camera::getViewing(Matrixr &result,
00186 UInt32 OSG_CHECK_ARG(width ),
00187 UInt32 OSG_CHECK_ARG(height))
00188 {
00189 if (getBeacon() == NULL)
00190 {
00191 SWARNING << "Camera::setup: no beacon!" << std::endl;
00192 return;
00193 }
00194
00195 getBeacon()->getToWorld(result);
00196 result.invert();
00197 }
00198
00202 void Camera::getFrustum(FrustumVolume& result, const Viewport& p)
00203 {
00204 Matrixr mv,prt,pr;
00205
00206 getProjection (pr , p.getPixelWidth(), p.getPixelHeight());
00207 getProjectionTranslation(prt, p.getPixelWidth(), p.getPixelHeight());
00208 getViewing (mv , p.getPixelWidth(), p.getPixelHeight());
00209
00210 pr.mult(prt);
00211 pr.mult(mv );
00212
00213 result.setPlanes(pr);
00214 }
00215
00218 void Camera::getFrustum(FrustumVolume& result,
00219 UInt32 width, UInt32 height)
00220 {
00221 Matrix mv,prt,pr;
00222
00223 getProjection (pr , width, height);
00224 getProjectionTranslation(prt, width, height);
00225 getViewing (mv , width, height);
00226
00227 pr.mult(prt);
00228 pr.mult(mv );
00229
00230 result.setPlanes(pr);
00231 }
00232
00237 void Camera::getWorldToScreen(Matrixr &result, const Viewport& p)
00238 {
00239 Matrixr mv,prt,pr;
00240
00241 getProjection (result, p.getPixelWidth(), p.getPixelHeight());
00242 getProjectionTranslation(prt , p.getPixelWidth(), p.getPixelHeight());
00243 getViewing (mv , p.getPixelWidth(), p.getPixelHeight());
00244
00245 result.mult(prt);
00246 result.mult(mv );
00247 }
00248
00253 void Camera::getDecoration(Matrixr &result, UInt32 width, UInt32 height)
00254 {
00255 result.setIdentity();
00256 }
00257
00258
00259 Matrixr Camera::getProjectionVal ( UInt32 width,
00260 UInt32 height)
00261 {
00262 Matrixr temp_mat;
00263 this->getProjection(temp_mat, width,height);
00264 return temp_mat;
00265 }
00266
00267 Matrixr Camera::getProjectionTranslationVal( UInt32 width,
00268 UInt32 height)
00269 {
00270 Matrixr temp_mat;
00271 this->getProjectionTranslation(temp_mat, width, height);
00272 return temp_mat;
00273 }
00274
00275 Matrixr Camera::getViewingVal ( UInt32 width,
00276 UInt32 height)
00277 {
00278 Matrixr temp_mat;
00279 this->getViewing(temp_mat, width, height);
00280 return temp_mat;
00281 }
00282
00283 FrustumVolume Camera::getFrustumVal ( const Viewport &port )
00284 {
00285 FrustumVolume vol;
00286 this->getFrustum(vol, port);
00287 return vol;
00288 }
00289
00290 Matrixr Camera::getWorldToScreenVal ( const Viewport &port )
00291 {
00292 Matrixr temp_mat;
00293 this->getWorldToScreen(temp_mat, port);
00294 return temp_mat;
00295 }
00296
00297 Matrixr Camera::getDecorationVal(UInt32 width, UInt32 height)
00298 {
00299 Matrixr temp_mat;
00300 this->getDecoration(temp_mat, width, height);
00301 return temp_mat;
00302 }
00303
00304 Vec2u Camera::tileGetFullSize(void) const
00305 {
00306 return Vec2u(0u, 0u);
00307 }
00308
00309 Vec4f Camera::tileGetRegion(void) const
00310 {
00311 return Vec4f(0.f, 1.f, 0.f, 1.f);
00312 }
00313
00314 #ifndef OSG_EMBEDDED
00315
00320 bool Camera::calcViewRay( Line &line,
00321 Int32 x,
00322 Int32 y,
00323 const Viewport &port,
00324 Real32 *t )
00325 {
00326 if(port.getPixelWidth() <= 0 || port.getPixelHeight() <= 0)
00327 {
00328 return false;
00329 }
00330
00331 Matrix proj, projtrans, view;
00332
00333 getProjection(proj,
00334 port.getPixelWidth(),
00335 port.getPixelHeight());
00336
00337 getProjectionTranslation(projtrans,
00338 port.getPixelWidth(),
00339 port.getPixelHeight());
00340
00341 getViewing(view,
00342 port.getPixelWidth(),
00343 port.getPixelHeight());
00344
00345 Matrix wctocc = proj;
00346
00347 wctocc.mult(projtrans);
00348 wctocc.mult(view);
00349
00350 Matrix cctowc;
00351
00352 cctowc.invertFrom(wctocc);
00353
00354 Real32 rx(0.f), ry(0.f);
00355 port.getNormalizedCoordinates(rx, ry, x, y);
00356
00357 Pnt3f from, at;
00358
00359 cctowc.multFull(Pnt3f(rx, ry, -1), from);
00360 cctowc.multFull(Pnt3f(rx, ry, 1), at );
00361
00362 Vec3f dir = at - from;
00363
00364 if(t != NULL)
00365 {
00366 *t = dir.length();
00367 }
00368
00369 line.setValue(from, dir);
00370
00371 return true;
00372 }
00373 #endif
00374
00375
00376
00377 void Camera::dump( UInt32 OSG_CHECK_ARG(uiIndent),
00378 const BitVector OSG_CHECK_ARG(bvFlags )) const
00379 {
00380 SLOG << "Dump Camera NI" << std::endl;
00381 }
