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25 // 25 //
26 // 26 //
>> 27 // $Id: G4OpenGLStoredSceneHandler.cc,v 1.31 2006/08/30 11:43:57 allison Exp $
>> 28 // GEANT4 tag $Name: geant4-08-02-patch-01 $
27 // 29 //
28 // 30 //
29 // Andrew Walkden 10th February 1997 31 // Andrew Walkden 10th February 1997
30 // OpenGL stored scene - creates OpenGL displa 32 // OpenGL stored scene - creates OpenGL display lists.
31 33
>> 34 #ifdef G4VIS_BUILD_OPENGL_DRIVER
>> 35
>> 36 // Included here - problems with HP compiler if not before other includes?
>> 37 #include "G4NURBS.hh"
>> 38
>> 39 // Here follows a special for Mesa, the OpenGL emulator. Does not affect
>> 40 // other OpenGL's, as far as I'm aware. John Allison 18/9/96.
>> 41 #define CENTERLINE_CLPP /* CenterLine C++ workaround: */
>> 42 // Also seems to be required for HP's CC and AIX xlC, at least.
>> 43
32 #include "G4OpenGLStoredSceneHandler.hh" 44 #include "G4OpenGLStoredSceneHandler.hh"
33 45
34 #include "G4PhysicalVolumeModel.hh" 46 #include "G4PhysicalVolumeModel.hh"
35 #include "G4LogicalVolumeModel.hh" <<
36 #include "G4VPhysicalVolume.hh" 47 #include "G4VPhysicalVolume.hh"
37 #include "G4LogicalVolume.hh" <<
38 #include "G4Polyline.hh" 48 #include "G4Polyline.hh"
39 #include "G4Polymarker.hh" 49 #include "G4Polymarker.hh"
40 #include "G4Text.hh" <<
41 #include "G4Circle.hh" 50 #include "G4Circle.hh"
42 #include "G4Square.hh" 51 #include "G4Square.hh"
43 #include "G4Polyhedron.hh" <<
44 #include "G4AttHolder.hh" <<
45 #include "G4OpenGLTransform3D.hh" <<
46 #include "G4OpenGLViewer.hh" <<
47 #include "G4AttHolder.hh" <<
48 <<
49 #include <typeinfo> <<
50 <<
51 G4int G4OpenGLStoredSceneHandler::fSceneIdCoun <<
52 <<
53 G4int G4OpenGLStoredSceneHandler::fDisplayLis <<
54 <<
55 G4OpenGLStoredSceneHandler::PO::PO(): <<
56 fDisplayListId(0), <<
57 fPickName(0), <<
58 fpG4TextPlus(0), <<
59 fMarkerOrPolyline(false) <<
60 {} <<
61 52
62 G4OpenGLStoredSceneHandler::PO::PO(const G4Ope << 53 G4OpenGLStoredSceneHandler::G4OpenGLStoredSceneHandler (G4VGraphicsSystem& system,
63 fDisplayListId(po.fDisplayListId), << 54 const G4String& name):
64 fTransform(po.fTransform), << 55 G4OpenGLSceneHandler (system, fSceneIdCount++, name),
65 fPickName(po.fPickName), << 56 fMemoryForDisplayLists (true),
66 fColour(po.fColour), << 57 fAddPrimitivePreambleNestingDepth (0),
67 fpG4TextPlus(po.fpG4TextPlus? new G4TextPlus << 58 fTopPODL (0)
68 fMarkerOrPolyline(po.fMarkerOrPolyline) <<
69 {} 59 {}
70 60
71 G4OpenGLStoredSceneHandler::PO::PO(G4int id, c << 61 G4OpenGLStoredSceneHandler::~G4OpenGLStoredSceneHandler ()
72 fDisplayListId(id), <<
73 fTransform(tr), <<
74 fPickName(0), <<
75 fpG4TextPlus(0), <<
76 fMarkerOrPolyline(false) <<
77 {} 62 {}
78 63
79 G4OpenGLStoredSceneHandler::PO::~PO() << 64 void G4OpenGLStoredSceneHandler::AddPrimitivePreamble(const G4Visible& visible)
80 { 65 {
81 delete fpG4TextPlus; << 66 // Track nesting depth to avoid recursive calls, for example, from a
82 } << 67 // G4Polymarker that invokes a G4Circle...
>> 68 fAddPrimitivePreambleNestingDepth++;
>> 69 if (fAddPrimitivePreambleNestingDepth > 1) return;
83 70
84 G4OpenGLStoredSceneHandler::PO& G4OpenGLStored << 71 const G4Colour& c = GetColour (visible);
85 (const G4OpenGLStoredSceneHandler::PO& rhs) <<
86 { <<
87 if (&rhs == this) return *this; <<
88 fDisplayListId = rhs.fDisplayListId; <<
89 fTransform = rhs.fTransform; <<
90 fPickName = rhs.fPickName; <<
91 fColour = rhs.fColour; <<
92 fpG4TextPlus = rhs.fpG4TextPlus? new G4TextP <<
93 fMarkerOrPolyline = rhs.fMarkerOrPolyline; <<
94 return *this; <<
95 } <<
96 <<
97 G4OpenGLStoredSceneHandler::TO::TO(): <<
98 fDisplayListId(0), <<
99 fPickName(0), <<
100 fStartTime(-G4VisAttributes::fVeryLongTime), <<
101 fEndTime(G4VisAttributes::fVeryLongTime), <<
102 fpG4TextPlus(0), <<
103 fMarkerOrPolyline(false) <<
104 {} <<
105 <<
106 G4OpenGLStoredSceneHandler::TO::TO(const G4Ope <<
107 fDisplayListId(to.fDisplayListId), <<
108 fTransform(to.fTransform), <<
109 fPickName(to.fPickName), <<
110 fStartTime(to.fStartTime), <<
111 fEndTime(to.fEndTime), <<
112 fColour(to.fColour), <<
113 fpG4TextPlus(to.fpG4TextPlus? new G4TextPlus <<
114 fMarkerOrPolyline(to.fMarkerOrPolyline) <<
115 {} <<
116 72
117 G4OpenGLStoredSceneHandler::TO::TO(G4int id, c << 73 if (fMemoryForDisplayLists && fReadyForTransients) {
118 fDisplayListId(id), <<
119 fTransform(tr), <<
120 fPickName(0), <<
121 fStartTime(-G4VisAttributes::fVeryLongTime), <<
122 fEndTime(G4VisAttributes::fVeryLongTime), <<
123 fpG4TextPlus(0), <<
124 fMarkerOrPolyline(false) <<
125 {} <<
126 74
127 G4OpenGLStoredSceneHandler::TO::~TO() << 75 TO& to = fTOList.back(); // Transient object information.
128 { <<
129 delete fpG4TextPlus; <<
130 } <<
131 76
132 G4OpenGLStoredSceneHandler::TO& G4OpenGLStored << 77 // Get vis attributes - pick up defaults if none.
133 (const G4OpenGLStoredSceneHandler::TO& rhs) << 78 const G4VisAttributes* pVA =
134 { << 79 fpViewer->GetApplicableVisAttributes(visible.GetVisAttributes());
135 if (&rhs == this) return *this; <<
136 fDisplayListId = rhs.fDisplayListId; <<
137 fTransform = rhs.fTransform; <<
138 fPickName = rhs.fPickName; <<
139 fStartTime = rhs.fStartTime; <<
140 fEndTime = rhs.fEndTime; <<
141 fColour = rhs.fColour; <<
142 fpG4TextPlus = rhs.fpG4TextPlus? new G4TextP <<
143 fMarkerOrPolyline = rhs.fMarkerOrPolyline; <<
144 return *this; <<
145 } <<
146 80
147 G4OpenGLStoredSceneHandler::G4OpenGLStoredScen << 81 // Get time information from vis attributes.
148 (G4VGraphicsSystem& system, << 82 to.fStartTime = pVA->GetStartTime();
149 const G4String& name): << 83 to.fEndTime = pVA->GetEndTime();
150 G4OpenGLSceneHandler (system, fSceneIdCount++, <<
151 fDoNotUseDisplayList(false), <<
152 fTopPODL (0) <<
153 {} <<
154 84
155 G4OpenGLStoredSceneHandler::~G4OpenGLStoredSce << 85 // Keep colour out of (already started) display list so that it
156 {} << 86 // can be applied independently.
>> 87 glEndList();
>> 88 glDeleteLists(fDisplayListId, 1);
>> 89 to.fColour = c;
>> 90 glColor3d (c.GetRed (), c.GetGreen (), c.GetBlue ());
>> 91 glNewList (fDisplayListId, GL_COMPILE_AND_EXECUTE);
>> 92
>> 93 } else {
157 94
158 void G4OpenGLStoredSceneHandler::BeginPrimitiv << 95 // Make sure colour is set in other cases.
159 (const G4Transform3D& objectTransformation) << 96 glColor3d (c.GetRed (), c.GetGreen (), c.GetBlue ());
160 { << 97 }
161 G4OpenGLSceneHandler::BeginPrimitives (objec <<
162 if (fReadyForTransients) glDrawBuffer (GL_FR <<
163 // Display list setup moved to AddPrimitiveP <<
164 } 98 }
165 99
166 void G4OpenGLStoredSceneHandler::EndPrimitives << 100 void G4OpenGLStoredSceneHandler::AddPrimitivePostamble()
167 { 101 {
168 // See all primitives immediately... At lea << 102 fAddPrimitivePreambleNestingDepth--;
169 ScaledFlush(); <<
170 glDrawBuffer (GL_BACK); <<
171 G4OpenGLSceneHandler::EndPrimitives (); <<
172 } 103 }
173 104
174 void G4OpenGLStoredSceneHandler::BeginPrimitiv << 105 void G4OpenGLStoredSceneHandler::AddPrimitive (const G4Polyline& polyline)
175 (const G4Transform3D& objectTransformation) <<
176 { 106 {
177 G4OpenGLSceneHandler::BeginPrimitives2D(obje << 107 AddPrimitivePreamble(polyline);
178 if (fReadyForTransients) glDrawBuffer (GL_FR << 108 G4OpenGLSceneHandler::AddPrimitive(polyline);
>> 109 AddPrimitivePostamble();
179 } 110 }
180 111
181 void G4OpenGLStoredSceneHandler::EndPrimitives << 112 void G4OpenGLStoredSceneHandler::AddPrimitive (const G4Circle& circle)
182 { 113 {
183 // See all primitives immediately... At lea << 114 AddPrimitivePreamble(circle);
184 ScaledFlush(); << 115 G4OpenGLSceneHandler::AddPrimitive(circle);
185 glDrawBuffer (GL_BACK); << 116 AddPrimitivePostamble();
186 G4OpenGLSceneHandler::EndPrimitives2D (); <<
187 } 117 }
188 118
189 G4bool G4OpenGLStoredSceneHandler::AddPrimitiv << 119 void G4OpenGLStoredSceneHandler::AddPrimitive (const G4Square& square)
190 { <<
191 return AddPrimitivePreambleInternal(visible, <<
192 } <<
193 G4bool G4OpenGLStoredSceneHandler::AddPrimitiv <<
194 { <<
195 return AddPrimitivePreambleInternal(visible, <<
196 } <<
197 G4bool G4OpenGLStoredSceneHandler::AddPrimitiv <<
198 { 120 {
199 return AddPrimitivePreambleInternal(visible, << 121 AddPrimitivePreamble(square);
>> 122 G4OpenGLSceneHandler::AddPrimitive(square);
>> 123 AddPrimitivePostamble();
200 } 124 }
201 125
202 G4bool G4OpenGLStoredSceneHandler::AddPrimitiv << 126 void G4OpenGLStoredSceneHandler::AddPrimitive (const G4Polymarker& polymarker)
203 (const G4Visible& visible, bool isMarker, bool <<
204 { 127 {
205 // Get applicable vis attributes for all primi << 128 AddPrimitivePreamble(polymarker);
206 fpVisAttribs = fpViewer->GetApplicableVisAtt << 129 G4OpenGLSceneHandler::AddPrimitive(polymarker);
207 const G4Colour& c = GetColour (); << 130 AddPrimitivePostamble();
208 G4double opacity = c.GetAlpha (); << 131 }
209 <<
210 G4bool transparency_enabled = true; <<
211 G4bool isMarkerNotHidden = true; <<
212 G4OpenGLViewer* pOGLViewer = dynamic_cast<G4 <<
213 if (pOGLViewer) { <<
214 transparency_enabled = pOGLViewer->transpa <<
215 isMarkerNotHidden = pOGLViewer->fVP.IsMark <<
216 } <<
217 <<
218 G4bool isTransparent = opacity < 1.; <<
219 G4bool isMarkerOrPolyline = isMarker || isPo <<
220 G4bool treatAsTransparent = transparency_ena <<
221 G4bool treatAsNotHidden = isMarkerNotHidden <<
222 <<
223 if (fProcessing2D) glDisable (GL_DEPTH_TEST) <<
224 else { <<
225 if (isMarkerOrPolyline && isMarkerNotHidde <<
226 glDisable (GL_DEPTH_TEST); <<
227 else {glEnable (GL_DEPTH_TEST); glDepthFun <<
228 } <<
229 132
230 if (fThreePassCapable) { << 133 void G4OpenGLStoredSceneHandler::BeginPrimitives
231 << 134 (const G4Transform3D& objectTransformation) {
232 // Ensure transparent objects are drawn *a <<
233 // non-hidden markers. The problem of ble <<
234 // is quite a tricky one - see History of <<
235 if (!(fSecondPassForTransparency || fThird <<
236 // First pass... <<
237 if (treatAsTransparent) { // Request pa <<
238 fSecondPassForTransparencyRequested = <<
239 } <<
240 if (treatAsNotHidden) { // Request pa <<
241 fThirdPassForNonHiddenMarkersRequested <<
242 } <<
243 // On first pass, transparent objects an <<
244 if (treatAsTransparent || treatAsNotHidd <<
245 return false; // No further processin <<
246 } <<
247 } <<
248 <<
249 // On second pass, only transparent object <<
250 if (fSecondPassForTransparency) { <<
251 if (!treatAsTransparent) { <<
252 return false; // No further processin <<
253 } <<
254 } <<
255 <<
256 // On third pass, only non-hidden markers <<
257 if (fThirdPassForNonHiddenMarkers) { <<
258 if (!treatAsNotHidden) { <<
259 return false; // No further processin <<
260 } <<
261 } <<
262 } // fThreePassCapable <<
263 135
264 // Loads G4Atts for picking... << 136 G4VSceneHandler::BeginPrimitives (objectTransformation);
265 G4bool isPicking = false; <<
266 if (fpViewer->GetViewParameters().IsPicking( <<
267 isPicking = true; <<
268 glLoadName(++fPickName); <<
269 G4AttHolder* holder = new G4AttHolder; <<
270 LoadAtts(visible, holder); <<
271 fPickMap[fPickName] = holder; <<
272 } <<
273 <<
274 // Because of our need to control colour of <<
275 // time fading), display lists may only cove <<
276 // So display list setup is here. <<
277 <<
278 if (fDoNotUseDisplayList) { <<
279 <<
280 glPushMatrix(); <<
281 G4OpenGLTransform3D oglt (fObjectTransform <<
282 glMultMatrixd (oglt.GetGLMatrix ()); <<
283 if (transparency_enabled) { <<
284 glColor4d(c.GetRed(),c.GetGreen(),c.GetB <<
285 } else { <<
286 glColor3d(c.GetRed(),c.GetGreen(),c.GetB <<
287 } <<
288 <<
289 } else { <<
290 137
>> 138 if (fMemoryForDisplayLists) {
291 fDisplayListId = glGenLists (1); 139 fDisplayListId = glGenLists (1);
292 if (glGetError() == GL_OUT_OF_MEMORY) { << 140 if (!fDisplayListId) { // Could pre-allocate?
293 static G4int errorCount = 0; << 141 G4cout << "********************* WARNING! ********************\n"
294 if (errorCount < 5) { << 142 <<"Unable to allocate any more display lists in OpenGL.\n "
295 errorCount++; << 143 << " Continuing drawing in IMMEDIATE MODE.\n"
296 G4ExceptionDescription ed; << 144 << "***************************************************" << G4endl;
297 ed << << 145 fMemoryForDisplayLists = false;
298 "Error attempting to create an OpenGL <<
299 "\nCurrent display list id: " << fDisp <<
300 "\nMaybe out of memory?"; <<
301 G4Exception <<
302 ("G4OpenGLStoredSceneHandler::AddPrimi <<
303 JustWarning,ed); <<
304 } <<
305 return false; <<
306 } 146 }
>> 147 }
>> 148 if (fMemoryForDisplayLists) {
307 if (fReadyForTransients) { 149 if (fReadyForTransients) {
308 TO to(fDisplayListId, fObjectTransformat << 150 TO to(fDisplayListId, objectTransformation);
309 if (isPicking) to.fPickName = fPickName; <<
310 to.fColour = c; <<
311 to.fStartTime = fpVisAttribs->GetStartTi <<
312 to.fEndTime = fpVisAttribs->GetEndTime() <<
313 to.fMarkerOrPolyline = isMarkerOrPolylin <<
314 fTOList.push_back(to); 151 fTOList.push_back(to);
315 // For transient objects, colour, transf << 152 glDrawBuffer (GL_FRONT);
316 // the TO, so should *not* be in the dis <<
317 // above, in some cases (display-by-time <<
318 // independent control of colour. But f <<
319 // colour for immediate display. <<
320 glPushMatrix(); 153 glPushMatrix();
321 G4OpenGLTransform3D oglt (fObjectTransfo << 154 G4OpenGLTransform3D oglt (objectTransformation);
322 glMultMatrixd (oglt.GetGLMatrix ()); 155 glMultMatrixd (oglt.GetGLMatrix ());
323 if (transparency_enabled) { <<
324 glColor4d(c.GetRed(),c.GetGreen(),c.Ge <<
325 } else { <<
326 glColor3d(c.GetRed(),c.GetGreen(),c.Ge <<
327 } <<
328 (void) ExtraTOProcessing(visible, fTOLis <<
329 // Ignore return value of the above. If <<
330 // gl commands, a display list is create <<
331 // used. <<
332 glNewList (fDisplayListId, GL_COMPILE_AN 156 glNewList (fDisplayListId, GL_COMPILE_AND_EXECUTE);
333 } else { <<
334 PO po(fDisplayListId, fObjectTransformat <<
335 if (isPicking) po.fPickName = fPickName; <<
336 po.fColour = c; <<
337 po.fMarkerOrPolyline = isMarkerOrPolylin <<
338 fPOList.push_back(po); <<
339 // For permanent objects, colour is kept <<
340 // *not* be in the display list. This i <<
341 // may implement colour modifications ac <<
342 // criteria, e.g., scene tree slider in <<
343 // colour for immediate display. <<
344 if (transparency_enabled) { <<
345 glColor4d(c.GetRed(),c.GetGreen(),c.Ge <<
346 } else { <<
347 glColor3d(c.GetRed(),c.GetGreen(),c.Ge <<
348 } <<
349 G4bool usesGLCommands = ExtraPOProcessin <<
350 // Transients are displayed as they come <<
351 // above) but persistents are compiled i <<
352 // (GL_COMPILE only) and then drawn from <<
353 // their fObjectTransformation as stored <<
354 // there is no need to do glMultMatrixd <<
355 // ExtraPOProcessing says the visible ob <<
356 // commands, simply return and abandon f <<
357 // is assumed that all relevant informat <<
358 // POList. <<
359 if (!usesGLCommands) return false; <<
360 glNewList (fDisplayListId, GL_COMPILE); <<
361 } 157 }
362 } << 158 else {
363 << 159 fPOList.push_back(PO(fDisplayListId, objectTransformation));
364 if (fProcessing2D) { << 160 glNewList (fDisplayListId, GL_COMPILE);
365 // Push current 3D world matrices and load <<
366 // coordinates... <<
367 glMatrixMode (GL_PROJECTION); <<
368 glPushMatrix(); <<
369 glLoadIdentity(); <<
370 if (pOGLViewer) { <<
371 pOGLViewer->g4GlOrtho (-1., 1., -1., 1., <<
372 } 161 }
373 glMatrixMode (GL_MODELVIEW); << 162 } else {
>> 163 glDrawBuffer (GL_FRONT);
374 glPushMatrix(); 164 glPushMatrix();
375 glLoadIdentity(); << 165 G4OpenGLTransform3D oglt (objectTransformation);
376 G4OpenGLTransform3D oglt (fObjectTransform <<
377 glMultMatrixd (oglt.GetGLMatrix ()); 166 glMultMatrixd (oglt.GetGLMatrix ());
378 glDisable (GL_LIGHTING); <<
379 } else { <<
380 if (isMarker) { <<
381 glDisable (GL_LIGHTING); <<
382 } else { <<
383 glEnable (GL_LIGHTING); <<
384 } <<
385 } 167 }
386 <<
387 return true; <<
388 } 168 }
389 169
390 void G4OpenGLStoredSceneHandler::AddPrimitiveP << 170 void G4OpenGLStoredSceneHandler::EndPrimitives () {
391 { << 171 if (fMemoryForDisplayLists) {
392 if (fProcessing2D) { <<
393 // Pop current 3D world matrices back agai <<
394 glMatrixMode (GL_PROJECTION); <<
395 glPopMatrix(); <<
396 glMatrixMode (GL_MODELVIEW); <<
397 glPopMatrix(); <<
398 } <<
399 <<
400 // if ((glGetError() == GL_TABLE_TOO_LARGE) <<
401 if (glGetError() == GL_OUT_OF_MEMORY) { // <<
402 G4cerr << <<
403 "ERROR: G4OpenGLStoredSceneHandler::AddP <<
404 " to allocate display List for fTopPODL <<
405 << G4endl; <<
406 } <<
407 if (!fDoNotUseDisplayList) { <<
408 glEndList(); 172 glEndList();
409 if (glGetError() == GL_OUT_OF_MEMORY) { / <<
410 G4cerr << <<
411 "ERROR: G4OpenGLStoredSceneHandler::Ad <<
412 " to allocate display List for fTopPODL - t <<
413 << G4endl; <<
414 } <<
415 } 173 }
416 if (fReadyForTransients || fDoNotUseDisplayL << 174 if (fReadyForTransients || !fMemoryForDisplayLists) {
417 glPopMatrix(); 175 glPopMatrix();
>> 176 glFlush ();
>> 177 glDrawBuffer (GL_BACK);
418 } 178 }
>> 179 G4VSceneHandler::EndPrimitives ();
419 } 180 }
420 181
421 void G4OpenGLStoredSceneHandler::AddPrimitive << 182 void G4OpenGLStoredSceneHandler::BeginPrimitives2D()
422 { 183 {
423 G4bool furtherprocessing = AddPrimitivePream << 184 G4VSceneHandler::BeginPrimitives2D();
424 if (furtherprocessing) { <<
425 G4OpenGLSceneHandler::AddPrimitive(polylin <<
426 AddPrimitivePostamble(); <<
427 } <<
428 } <<
429 185
430 void G4OpenGLStoredSceneHandler::AddPrimitive << 186 if (fMemoryForDisplayLists) {
431 { << 187 fDisplayListId = glGenLists (1);
432 G4bool furtherprocessing = AddPrimitivePream << 188 if (!fDisplayListId) { // Could pre-allocate?
433 if (furtherprocessing) { << 189 G4cout << "********************* WARNING! ********************\n"
434 G4OpenGLSceneHandler::AddPrimitive(polymar << 190 <<"Unable to allocate any more display lists in OpenGL.\n "
435 AddPrimitivePostamble(); << 191 << " Continuing drawing in IMMEDIATE MODE.\n"
>> 192 << "***************************************************" << G4endl;
>> 193 fMemoryForDisplayLists = false;
>> 194 }
436 } 195 }
437 } << 196 if (fMemoryForDisplayLists) {
438 << 197 if (fReadyForTransients) {
439 void G4OpenGLStoredSceneHandler::AddPrimitive << 198 fTOList.push_back(TO(fDisplayListId));
440 { << 199 glDrawBuffer (GL_FRONT);
441 // Note: colour is still handled in << 200 glNewList (fDisplayListId, GL_COMPILE_AND_EXECUTE);
442 // G4OpenGLSceneHandler::AddPrimitive(const << 201 }
443 // gets into the display list << 202 else {
444 G4bool furtherprocessing = AddPrimitivePream << 203 fPOList.push_back(PO(fDisplayListId));
445 if (furtherprocessing) { << 204 glNewList (fDisplayListId, GL_COMPILE);
446 G4OpenGLSceneHandler::AddPrimitive(text); << 205 }
447 AddPrimitivePostamble(); << 206 } else {
>> 207 glDrawBuffer (GL_FRONT);
448 } 208 }
>> 209 // Push current 3D world matrices and load identity to define screen
>> 210 // coordinates...
>> 211 glMatrixMode (GL_PROJECTION);
>> 212 glPushMatrix();
>> 213 glLoadIdentity();
>> 214 glOrtho (-1., 1., -1., 1., -DBL_MAX, DBL_MAX);
>> 215 glMatrixMode (GL_MODELVIEW);
>> 216 glPushMatrix();
>> 217 glLoadIdentity();
449 } 218 }
450 219
451 void G4OpenGLStoredSceneHandler::AddPrimitive << 220 void G4OpenGLStoredSceneHandler::EndPrimitives2D ()
452 { 221 {
453 G4bool furtherprocessing = AddPrimitivePream << 222 // Pop current 3D world matrices back again...
454 if (furtherprocessing) { << 223 glMatrixMode (GL_PROJECTION);
455 G4OpenGLSceneHandler::AddPrimitive(circle) << 224 glPopMatrix();
456 AddPrimitivePostamble(); << 225 glMatrixMode (GL_MODELVIEW);
457 } << 226 glPopMatrix();
458 } <<
459 227
460 void G4OpenGLStoredSceneHandler::AddPrimitive << 228 if (fMemoryForDisplayLists) {
461 { << 229 glEndList();
462 G4bool furtherprocessing = AddPrimitivePream <<
463 if (furtherprocessing) { <<
464 G4OpenGLSceneHandler::AddPrimitive(square) <<
465 AddPrimitivePostamble(); <<
466 } 230 }
467 } << 231 if (fReadyForTransients || !fMemoryForDisplayLists) {
468 << 232 glFlush ();
469 void G4OpenGLStoredSceneHandler::AddPrimitive << 233 glDrawBuffer (GL_BACK);
470 { <<
471 // Note: colour is still handled in <<
472 // G4OpenGLSceneHandler::AddPrimitive(const <<
473 // gets into the display list <<
474 G4bool furtherprocessing = AddPrimitivePream <<
475 if (furtherprocessing) { <<
476 G4OpenGLSceneHandler::AddPrimitive(polyhed <<
477 AddPrimitivePostamble(); <<
478 } 234 }
>> 235 G4VSceneHandler::EndPrimitives2D ();
479 } 236 }
480 237
481 void G4OpenGLStoredSceneHandler::BeginModeling 238 void G4OpenGLStoredSceneHandler::BeginModeling () {
482 G4VSceneHandler::BeginModeling(); 239 G4VSceneHandler::BeginModeling();
>> 240 ClearStore(); // ...and all that goes with it.
483 /* Debug... 241 /* Debug...
484 fDisplayListId = glGenLists (1); 242 fDisplayListId = glGenLists (1);
485 G4cout << "OGL::fDisplayListId (start): " << 243 G4cout << "OGL::fDisplayListId (start): " << fDisplayListId << G4endl;
486 */ 244 */
487 } 245 }
488 246
489 void G4OpenGLStoredSceneHandler::EndModeling ( 247 void G4OpenGLStoredSceneHandler::EndModeling () {
490 // Make a List which calls the other lists. 248 // Make a List which calls the other lists.
491 fTopPODL = glGenLists (1); 249 fTopPODL = glGenLists (1);
492 if (glGetError() == GL_OUT_OF_MEMORY) { // << 250 if (!fTopPODL) {
493 G4cerr << << 251 G4cout <<
494 "ERROR: G4OpenGLStoredSceneHandler::EndM 252 "ERROR: G4OpenGLStoredSceneHandler::EndModeling: Failure to allocate"
495 " display List for fTopPODL - try OpenG 253 " display List for fTopPODL - try OpenGL Immediated mode."
496 << G4endl; 254 << G4endl;
497 } else { << 255 }
498 << 256 else {
499 glNewList (fTopPODL, GL_COMPILE); { << 257 glNewList (fTopPODL, GL_COMPILE_AND_EXECUTE); {
500 for (size_t i = 0; i < fPOList.size (); 258 for (size_t i = 0; i < fPOList.size (); i++) {
501 glPushMatrix(); 259 glPushMatrix();
502 G4OpenGLTransform3D oglt (fPOList[i].fTransf 260 G4OpenGLTransform3D oglt (fPOList[i].fTransform);
503 glMultMatrixd (oglt.GetGLMatrix ()); 261 glMultMatrixd (oglt.GetGLMatrix ());
504 if (fpViewer->GetViewParameters().IsPicking( <<
505 glLoadName(fPOList[i].fPickName); <<
506 glCallList (fPOList[i].fDisplayListId); 262 glCallList (fPOList[i].fDisplayListId);
507 glPopMatrix(); 263 glPopMatrix();
508 } 264 }
509 } 265 }
510 glEndList (); 266 glEndList ();
511 <<
512 if (glGetError() == GL_OUT_OF_MEMORY) { / <<
513 G4cerr << <<
514 "ERROR: G4OpenGLStoredSceneHandler::En <<
515 " display List for fTopPODL - try Ope <<
516 << G4endl; <<
517 } <<
518 } 267 }
519 268
520 G4VSceneHandler::EndModeling (); 269 G4VSceneHandler::EndModeling ();
>> 270
>> 271 /* Debug...
>> 272 fDisplayListId = glGenLists (1);
>> 273 G4cout << "OGL::fDisplayListId (end): " << fDisplayListId << G4endl;
>> 274 */
521 } 275 }
522 276
523 void G4OpenGLStoredSceneHandler::ClearStore () 277 void G4OpenGLStoredSceneHandler::ClearStore () {
524 278
525 //G4cout << "G4OpenGLStoredSceneHandler::Cle <<
526 <<
527 G4VSceneHandler::ClearStore (); // Sets nee 279 G4VSceneHandler::ClearStore (); // Sets need kernel visit, etc.
528 280
529 // Delete OpenGL permanent display lists. 281 // Delete OpenGL permanent display lists.
530 for (size_t i = 0; i < fPOList.size (); i++) 282 for (size_t i = 0; i < fPOList.size (); i++)
531 glDeleteLists (fPOList[i].fDisplayListId, 283 glDeleteLists (fPOList[i].fDisplayListId, 1);
532 if (fTopPODL) glDeleteLists (fTopPODL, 1); 284 if (fTopPODL) glDeleteLists (fTopPODL, 1);
533 fTopPODL = 0; 285 fTopPODL = 0;
534 286
535 // Clear other lists, dictionary, etc. 287 // Clear other lists, dictionary, etc.
536 fPOList.clear (); 288 fPOList.clear ();
537 fSolidMap.clear (); 289 fSolidMap.clear ();
538 ClearAndDestroyAtts(); <<
539 290
540 // ...and clear transient store... 291 // ...and clear transient store...
541 for (size_t i = 0; i < fTOList.size (); i++) 292 for (size_t i = 0; i < fTOList.size (); i++)
542 glDeleteLists(fTOList[i].fDisplayListId, 1 293 glDeleteLists(fTOList[i].fDisplayListId, 1);
543 fTOList.clear (); 294 fTOList.clear ();
544 } 295 }
545 296
546 void G4OpenGLStoredSceneHandler::ClearTransien << 297 void G4OpenGLStoredSceneHandler::ClearTransientStore () {
547 { << 298
548 //G4cout << "G4OpenGLStoredSceneHandler::Cle << 299 G4VSceneHandler::ClearTransientStore ();
549 300
550 // Delete OpenGL transient display lists and 301 // Delete OpenGL transient display lists and Transient Objects themselves.
551 for (size_t i = 0; i < fTOList.size (); i++) 302 for (size_t i = 0; i < fTOList.size (); i++)
552 glDeleteLists(fTOList[i].fDisplayListId, 1 303 glDeleteLists(fTOList[i].fDisplayListId, 1);
553 fTOList.clear (); 304 fTOList.clear ();
554 305
555 // Redraw the scene ready for the next event << 306 // Make sure screen corresponds to graphical database...
556 if (fpViewer) { 307 if (fpViewer) {
557 fpViewer -> SetView (); 308 fpViewer -> SetView ();
558 fpViewer -> ClearView (); 309 fpViewer -> ClearView ();
559 fpViewer -> DrawView (); 310 fpViewer -> DrawView ();
560 } 311 }
561 } 312 }
>> 313
>> 314 void G4OpenGLStoredSceneHandler::RequestPrimitives (const G4VSolid& solid)
>> 315 {
>> 316 if (fReadyForTransients) {
>> 317 // Always draw transient solids, e.g., hits represented as solids.
>> 318 // (As we have no control over the order of drawing of transient
>> 319 // objects, we cannot do anything about transparent ones, as
>> 320 // below, so always draw them.)
>> 321 G4VSceneHandler::RequestPrimitives (solid);
>> 322 return;
>> 323 }
>> 324
>> 325 // For non-transient (run-duration) objects, ensure transparent
>> 326 // objects are drawn last. The problem of
>> 327 // blending/transparency/alpha is quite a tricky one - see History
>> 328 // of opengl-V07-01-01/2/3.
>> 329 // Get vis attributes - pick up defaults if none.
>> 330 const G4VisAttributes* pVA =
>> 331 fpViewer -> GetApplicableVisAttributes(fpVisAttribs);
>> 332 const G4Colour& c = pVA -> GetColour ();
>> 333 G4double opacity = c.GetAlpha ();
>> 334
>> 335 if (!fSecondPass) {
>> 336 G4bool transparency_enabled = true;
>> 337 G4OpenGLViewer* pViewer = dynamic_cast<G4OpenGLViewer*>(fpViewer);
>> 338 if (pViewer) transparency_enabled = pViewer->transparency_enabled;
>> 339 if (transparency_enabled && opacity < 1.) {
>> 340 // On first pass, transparent objects are not drawn, but flag is set...
>> 341 fSecondPassRequested = true;
>> 342 return;
>> 343 }
>> 344 }
>> 345
>> 346 // On second pass, opaque objects are not drwan...
>> 347 if (fSecondPass && opacity >= 1.) return;
>> 348
>> 349 G4PhysicalVolumeModel* pPVModel =
>> 350 dynamic_cast<G4PhysicalVolumeModel*>(fpModel);
>> 351
>> 352 if (pPVModel) {
>> 353 // If part of the geometry hierarchy, i.e., from a
>> 354 // G4PhysicalVolumeModel, check if a display list already exists for
>> 355 // this solid, re-use it if possible. We could be smarter, and
>> 356 // recognise repeated branches of the geometry hierarchy, for
>> 357 // example. But this algorithm should be secure, I think...
>> 358 const G4VSolid* pSolid = &solid;
>> 359 EAxis axis = kRho;
>> 360 G4VPhysicalVolume* pCurrentPV = pPVModel->GetCurrentPV();
>> 361 if (pCurrentPV -> IsReplicated ()) {
>> 362 G4int nReplicas;
>> 363 G4double width;
>> 364 G4double offset;
>> 365 G4bool consuming;
>> 366 pCurrentPV->GetReplicationData(axis,nReplicas,width,offset,consuming);
>> 367 }
>> 368 // Provided it is not parametrised (because if so, the
>> 369 // solid's parameters might have been changed)...
>> 370 if (!(pCurrentPV -> IsParameterised ()) &&
>> 371 // Provided it is not replicated radially (because if so, the
>> 372 // solid's parameters will have been changed)...
>> 373 !(pCurrentPV -> IsReplicated () && axis == kRho) &&
>> 374 // ...and if the solid has already been rendered...
>> 375 (fSolidMap.find (pSolid) != fSolidMap.end ())) {
>> 376 fDisplayListId = fSolidMap [pSolid];
>> 377 fPOList.push_back(PO(fDisplayListId,*fpObjectTransformation));
>> 378 }
>> 379 else {
>> 380 G4VSceneHandler::RequestPrimitives (solid);
>> 381 fSolidMap [pSolid] = fDisplayListId;
>> 382 }
>> 383 return;
>> 384 }
>> 385
>> 386 // Otherwise invoke base class method...
>> 387 G4VSceneHandler::RequestPrimitives (solid);
>> 388 }
>> 389
>> 390 G4int G4OpenGLStoredSceneHandler::fSceneIdCount = 0;
>> 391
>> 392 #endif
562 393