source: trunk/source/visualization/OpenGL/History @ 1049

Last change on this file since 1049 was 1046, checked in by garnier, 15 years ago

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1$Id: History,v 1.141 2009/05/14 16:42:27 lgarnier Exp $
2-------------------------------------------------------------------
3
4     =========================================================
5     Geant4 - an Object-Oriented Toolkit for Simulation in HEP
6     =========================================================
7
8                      Category History file
9                      ---------------------
10This file should be used by G4 developers and category coordinators
11to briefly summarize all major modifications introduced in the code
12and keep track of all category-tags.
13It DOES NOT substitute the  CVS log-message one should put at every
14committal in the CVS repository !
15
16     ----------------------------------------------------------
17     * Reverse chronological order (last date on top), please *
18     ----------------------------------------------------------
19
20History file for visualization/OpenGL
21-------------------------------------
22
2314 May 2009, Laurent Garnier (opengl-V09-02-04)
24 - G4OpenGLViewer : Add methods to manage print size and filename
25 - G4OpenGLViewerMessenger : Added /vis/ogl/set/printSize
26 - G4OpenGLViewerMessenger : Added /vis/ogl/set/printFilename
27 - G4OpenGLQtViewer.cc,G4OpenGLXmMainMenuBarCallback.cc, renaming
28   according to first point.
29
3013 May 2009, Laurent Garnier
31 - G4OpenGLStoredQtViewer.cc: Fix a second view redraw at ShowView() call
32 - G4OpenGLQtViewer : Remove unuseful variables, renaming others
33 - G4OpenGLViewer : Add method for resizing properly windows. Add methods
34   to get window width, height and to know if size has changed
35 - G4OpenGLQtViewer, G4OpenGLStoredQtViewer, G4OpenGLImmediateQtViewer,
36   G4OpenGLXmViewer, G4XmWindowsHandlingCallback, G4OpenGLXViewer :
37     Apply the previous changes.
38
396 May 2009, Laurent Garnier
40 - G4OpenGLQtViewer.cc: Fix compilation warning and error with gcc4.4
41
4228th April 2009, John Allison
43 - G4OpenGLViewerMessenger.cc: Added return statement at end of every
44   "if (command == ..." statement.  (Because of test for OGLS, it is
45   not elegant to use "if...else if...else" structure.)
46
4728th April 2009, Laurent Garnier
48 - G4OpenGLXViewer,G4OpenGLViewer : End of moving printEPS and associated
49   functions from GLXViewer to GLViewer.   
50 - G4OpenGLXViewer :
51   - Remove debug methods
52   - Add check in SetView() method
53 - G4OpenGLViewer : Add a glReadBuffer before glReadPixel in grabPixel method
54
558th April 2009, Laurent Garnier
56 - G4OpenGLBitmapStore.hh : BugFix correction for windows (introduce 2nd February ?)
57 - G4OpenGLViewer.hh : move methods in private
58 - G4OpenGLXViewer.hh : Add debug methods
59 - G4OpenGLImmediateXmViewer.cc, G4OpenGLStoredViewer.cc, G4OpenGLStoredXmViewer.cc,
60   G4OpenGLStoredXViewer.cc, G4OpenGLViewer.cc   : Add debug messages
61 - G4OpenGLStoredXmViewer.cc,G4OpenGLStoredXViewer.cc, G4OpenGLStoredWin32Viewer.cc :
62   - Add a DrawDisplay list in case of KernelVisit=1 and  nothing new to display.
63   - Add a flush at the end of the view.
64 - G4OpenGLViewer.cc :
65   - Improve the fix and resizing when X/Y size was even (lack of precision
66     in a /2)
67   - Set line/point size at a default size when printing.
68 - G4OpenGLXmWindowsHandlingCallbacks.cc : print method rename in printEPS
69 - G4OpenGLXViewer.cc : Lot of changes, try to debug it. Pb when printing in pixmap
70   mode on some windows size
71
726th April 2009, Joseph Perl (opengl-V09-02-02, then opengl-V09-02-03)
73 - New tag to clean up all of the cases of files that changed only in the cvs id.
74
7524th March 2009, Laurent Garnier (opengl-V09-02-01)
76 - G4OpenGLViewer : Add a fix and resizing when X/Y size was even (lack of precision
77   in a /2)
78
7918th March 2009  John Allison
80- G4OpenGLViewerMessenger.cc: printMode and transparency are available
81  for all OGL windows (they were previously inadvertently hidden by
82  an OGLS requirement).
83
8416th March 2009, Laurent Garnier
85 - G4OpenGLViewer : Add a check on max viewport dimensions when setting size.
86
874rd March 2009, Laurent Garnier
88 - G4OpenGLQtViewer:
89   - Suppress some warnings when saving file
90   - Changing size is now allowed when saving (to save with better resolution than screen size)
91 - G4OpenGLViewer:
92  - Some renaming for print methods to be more clear about Vectored and non Vectored
93  - Now using Gl2PS method to do PS (changes also in G4OpenGLXViewer and G4OpenGLQtViewer)
94  - Suppress unuseful printX methods (heritated form XViewer)
95  - Add methods to handle printVectored and NonVector cases
96 - G4OpenGLViewerMessanger : Changes methods to get new G4OpenGLViewer methods to print
97
981st March 2009, Laurent Garnier
99 - Remplacing glBitmap by GL_POINTS to draw marker : Speed improvment
100  and gl2ps can now draw Markers.
101
10216 February 2009, Laurent Garnier
103 - Modifications in GNUMakefile for gl2ps.
104 - G4OpenGLViewer,G4OpenGLViewerMessenger.cc,G4OpenGLXmMainMenubarCallbacks.cc
105   ,G4OpenGLXmViewer.cc modified for gl2ps and some renaming "print" in
106   "printVectoredEPS"
107
1082nd February 2009  Laurent Garnier
109- Improve Anticipate headers declaration in all files
110- Factorize grabPixels function in G4OpenGLViewer
111- Begin of refactoring printEPS function
112
11322th January 2009  Laurent Garnier
114- Fix bug in ratio and geometry on X/Xm/Qt/Win32 viewers
115
11619th January 2009  Laurent Garnier
117- Change G4DEBUG definition by G4DEBUG_VIS_OGL
118
11912th January 2009  John Allison
120- G4OpenGLViewer.cc: Pick up X and Y window size hints to define viewport.
121
1222 December, Laurent Garnier
123 - G4OpenGLImmediateXmViewer,G4OpenGLStoredXmViewer,G4OpenGLXmViewer
124   G4OpenGLImmediateXViewer, G4OpenGLStoredXViewer, G4OpenGLXViewer,
125   G4OpenGLXmWindowHandlingCallbacks,
126   G4OpenGLImmediateQtViewer.cc, G4OpenGLStoredQtViewer, G4OpenGLQtViewer
127   G4OpenGLImmediateWin32Viewer.cc, G4OpenGLStoredWin32Viewer, G4OpenGLWin32Viewer
128   ->  Replace WinSize by fWinSize and some improvments about size initialization
129
130 - G4OpenGLQtViewer.hh : Suppress WinSize private variable
131 - Now Could pass XString like 400x600-0+0 to viewers and set position and location. It
132   will work for Qt, X, Win32 for the moment.
133
13424 October, Laurent Garnier (opengl-V09-01-03)
135 - Change GEANT4_QT_DEBUG flag by QTDEBUG
136 - Suppress unuseful DEBUG messages
137
13812th October Laurent Garnier
139 - G4OpenGLQtExportDialog : improvments for Qt3"
140 - G4OpenGLQtViewer,G4OpenGLImmediateQtViewer,G4OpenGLStoreQtViewer : Add the name on OpenGlQt viewers
141 - G4OpenGLStoredQtViewer,G4OpenGLImmediateQt, G4OpenGLStoredQt : Change OGLSQT and OGLIQT by OGLSQt and OGLIQt
142
1432 October Laurent Garnier
144 - Fix a crash when there was no scene.
145
14628 July Laurent Garnier
147 - Fix a bug in XmRotation panel introduce in last commit by myself.
148
14920th June 2008  Laurent Garnier
150 - Correct some warnings
151 - Move rotation code of Xm and Qt in G4OpenGLViewer::rotateScene. Same code in now shared
152
15312th June 2008  Laurent Garnier
154 - Emit signals when moving/rotate scene, in order to get them in external app
155
15628th Mai 2008  Laurent Garnier
157 - Add mouse wheel zoom commands
158
15928th April 2008  Laurent Garnier
160 - Add better moc control/compilation step in GNUmakefile
161 - Fix a problem when launching QT VIS without QT UI (N02 for example)
162
16328th April 2008  John Allison  (opengl-V09-01-02)
164- G4OpenGLStoredSceneHandler: Tidied constructors of nested classes.
165
1664th April 2008  John Allison  (opengl-V09-01-01)
167- Fixed DBL_MAX problem in 2D drawing:
168  o changed G4OPENGL_DBL_MAX to G4OPENGL_FLT_BIG.
169- Fix gcc-4.3.0 compiler warnings.
170
17111th March 2008, Laurent Garnier
172 - Resolve QT3 compilation errors
173
17410th March 2008, Laurent Garnier
175 - Add a dialog panel to make movies (Right button->Actions->Movie parameters)
176 - Add ability to "auto rotate" volume launched with quick mouse move
177 - Lots of improvments for Qt3
178 - Improvments on moving steps with shortcuts
179 - Could now select between orthogonal/perspective view mode
180
1811st February 2008  John Allison
182 - G4OpenGLQtViewer.cc: Fix #ifdef QT protection.
183 - G4OpenGLSceneHandler.cc: Small improvement to logic of setting GL_LIGHTING.
184
18530th January 2008, Laurent Garnier
186 - Add moving camera on left/right/up/down arrown, going forward/backward
187   on SHIFT+up/down, zoom in with +/- keys
188 - Add a context menu entry for projection perspective/orthographic
189 - Fix some bugs on windows in export dialog
190
19115th January 2008, Laurent Garnier
192 - Fixed some layout problems on export dialog box
193 - Some improvements on exports formats
194 - Fix a bug in the help command : The clic callback on a item was not
195   working on windows
196 - Fix a crash at exit when launched on a MAC.
197 - EPS export format is now ready for Qt3
198 - Add Vectoriel EPS export format
199 - Fix an aspect ratio deformation when resize the widget
200 - Fix a crash at launch with leopard
201 - When selecting the "move" mouse action, this action was set even when
202   mouse button was released. Fixed : Now we should clic to have the move action
203 - GNUmakefile : Added a macro for moc file
204 - Moc files : Suppression of all theses files. They are now autogenerated
205   thanks to config/common.gmk
206
2074th January 2008  John Allison  (opengl-V09-01-00)
208- Implemented extended 2D interface.
209
21030th November 2007  Laurent Garnier
211- Improvements for Qt3
212- moc files : Adding other versions for QT_MOC_REVISION 28,58 and
213   59, but this is not the right solution..
214
21519th November 2007  Joseph Perl (for Laurent Garnier) (opengl-V09-00-04)
216- Added GEANT4_QT_DEBUG flag to more places
217
21815th November 2007  John Allison  (opengl-V09-00-03)
219- Re-introduced Qt files, now properly protected by cpp flags.
220- cpp flags also added to some other files not previously properly protected.
221
22215 Nov 2007, Laurent Garnier
223 - G4UIQt,G4Qt : Adding a GEANT4_QT_DEBUG flag to hide all debug messages
224 - G4UIQt,G4Qt : Compilation improvements for Qt3
225 - G4UIQt,G4Qt : Minors corrections on G4UIQt helpWidget
226
22714 Nov 2007, Laurent Garnier
228 - G4OpenGLStoredQtViewer.cc : Correction of a bug with mouse move event in
229     Qt4
230 - G4OpenGLQtExportDialog_moc.cc, G4OpenGLQtViewer.cc, G4OpenGLQtViewer_moc.cc :
231     Adding protection for Qt version between 4.0 and 4.2
232
23313th November 2007  John Allison  (opengl-V09-00-02)
234- Removed Qt files from tag.  File are still at head - need fixing.
235
23613 Nov 2007, Laurent Garnier
237 - G4UIQt,G4Qt : Moving all moc in one big file interface/G4UIQT_moc.cc,
238   including Qt3 and Qt4 moc support
239
24010th November 2007  John Allison  (opengl-V09-00-01)
241- Moved WinSize_x, y to base class G4OpenGLViewer.
242- Minor improvement in guidance for /vis/ogl/printEPS.
243
24409 Nov 2007, Laurent Garnier
245 - G4UIQt,G4Qt : Change all include directive to be compatible with Qt3
246
24708 Nov 2007, Laurent Garnier
248 - moc_G4OpenGLQtExportDialog.cc move in G4OpenGLQtExportDialog_moc.cc
249 - moc_G4OpenGLQtViewer.cc move to G4OpenGLQtViewer_moc.cc
250
25127 Sept 2007, Laurent Garnier
252 - Adding sur files for G4UIQt driver :
253   - G4OpenGLImmediateQt.cc
254   - G4OpenGLImmediateQtViewer.cc
255   - G4OpenGLQtExportDialog.cc
256   - G4OpenGLQtViewer.cc
257   - G4OpenGLStoredQt.cc
258   - G4OpenGLStoredQtViewer.cc
259   - moc_G4OpenGLQtExportDialog.cc
260   - moc_G4OpenGLQtViewer.cc
261
26228th September 2007  lgarnier
263- first import of G4UI Qt files : Do not try to compil them
264
26521st August 2007  John Allison  (opengl-V09-00-00)
266- Removed redundant G4OpenGLXViewerMessenger.
267
26825th May 2007  John Allison  (opengl-V08-03-03)
269- G4OpenGLSceneHandler and G4OpenGLXViewerMessenger:
270  Fixed gcc-4.1.2 compiler warnings.
271
27225th May 2007  John Allison  (opengl-V08-03-02)
273- G4OpenGLXViewer: Trapped glXMakeCurrent in Initialise function.
274
27524th May 2007  John Allison  (opengl-V08-03-01)
276- Fixes for SUN.
277
27816th May 2007  John Allison  (opengl-V08-03-00)
279- Fix compiler warnings on SLC4.
280- Bug fixes:
281  o Correct path /vis/ogl/set/printMode.
282  o Add SetView to pixmap screen dump ("/vis/ogl/set/printMode pixmap"
283    and "/vis/ogl/printEPS").
284
2858th May 2007  John Allison  (opengl-V08-02-06)
286- Moved vectored PostScript printing to G4OpenGLViewer.
287- /vis/ogl/printEPS should work for all viewers, including Win32.
288- Introduced /vis/ogl/set/printMode vectored|pixmap, currently only
289  effective on X windows (and still somewhat buggy).
290
2914th April 2007  John Allison  (opengl-V08-02-05 - needs visman-V08-02-04)
292- Implemented picking for OGLSX ( as well as OGLIX).  Hopefully works
293  for OGL*Win32.  Still doesn't work for OGL*Xm.
294
2953rd April 2007  John Allison  (opengl-V08-02-04 - needs visman-V08-02-03)
296- G4OpenGLStoredSceneHandler:
297  o Re-organised display lists on a per-primitive basis, i.e., one
298    display list per primitive.  (This is so that, except for text,
299    the colour - or, rather, intensity - can be brought out of the
300    display list into the TOList (Transient Object List) and
301    controlled for the Display-by-Time feature.  Previously, if more
302    than one primitive were drawn between BeginPrimitives and
303    EndPrimitives, it would finish up all in one display list, colour
304    commands included. Rationalises and fixes a rare bug in the
305    Display-by-Time feature - see August 2006.)
306  o Added AddPrimitive(const G4Polymarker&) so that it is treated as
307    one primoitive to fit with the above re-organisation.
308- Implemented picking for OGLIX.
309
31025th March 2007  John Allison  (opengl-V08-02-03)
311- Fix compiler warnings.
312
3138th February 2007  John Allison  (opengl-V08-02-02)
314- Fixed Windows problem with DBL_MAX.  (Introduced G4OPENGL_DBL_MAX.)
315- G4OpenGLXViewer.cc: Small bug fix in print().  (Context was switched
316  .but not switched back.  Not serious, because context was always set
317  before normal drawing.)
318
3199th January 2007  John Allison  (opengl-V08-02-01)
320- Implemented bitmap markers for MarkerSizeType == screen.  (The old
321  polygon implementation remains for MarkerSizeType == world.)
322- Added G4OpenGLBitMapStore to assist the above.
323- G4OpenGLXViewer::CreateGLXContext:
324  o Bug fix: Added missing break in colormap lookup routine.
325
3265th January 2007  John Allison  (opengl-V08-02-00)
327- G4OpenGLSceneHandler.cc:
328  o Followed change of signature of GetLineWidth in visman-V08-02-00.
329  o Minor efficiency improvements.
330
33121st November 2006  John Allison  (opengl-V08-01-09)
332- Fixed compiler warnings.
333
3341st November 2006  John Allison  (opengl-V08-01-08)
335- Replace /vis/oglx/set/printEPS by /vis/oglx/printEPS.  The new command
336  actually initiates a print, rather than set a flag for printing.
337
33824th October 2006  John Allison  (opengl-V08-01-07)
339- G4OpenGLStoredViewer.cc: Calculate light front horizon properly.
340- G4OpenGLViewerMessenger.cc: Make refresh depend on auto-refresh.
341
34219th September 2006  John Allison  (opengl-V08-01-06)
343- Added time origin for light front.
344- Added /vis/ogl/set/transparency.
345- G4OpenGLStoredViewer.cc: Bug fix in time range acceptance.
346
3474th September 2006  John Allison  (opengl-V08-01-05)
348- Implement cutaways.
349- Immediate mode: G4OpenGLImmediateSceneHandler.cc: Flush all
350  primitives (see detector being drawn).
351- /vis/oglx/set/printEPS: change parameter default to true.
352
35330th August 2006  John Allison  (opengl-V08-01-04)
354- G4OpenGLSceneHandler:
355  o Implemented line width.
356  o Switched off back face culling when clipping so that the inside of
357    volumes can be seen.
358  o Added CreateSection/CutawayPolyhedron to exploit generic
359    sectioning (DCUT) and cutaways.  Currently not activated due to
360    instabilities in BooleanProcessor.  Local sectioning still active
361    but broken (at least on Mac) due to apparent change in effect of
362    clipping planes (polyhedron edges not reconstructed).
363  o Rationalised calculation of marker size.
364- G4OpenGLStoredSceneHandler:
365  o Fixed bug due to recursive calls of AddPrimitive (polymarkers -> markers).
366  o Pick up time range from G4VisAttributes.
367- G4OpenGLViewer(Messenger):
368  o Added position and colour to /vis/ogl/set/displayHeadTime.
369  o Added /vis/ogl/set/displayLightFront.
370- G4OpenGLStoredViewer.cc:
371  o Rationalised CompareForKernelVisit.  (Local sectioning still active.)
372  o Added position and colour to DisplayHeadTime.
373  o Added DisplayLightFront.
374 
37516th August 2006  John Allison  (opengl-V08-01-03)
376- Corrected Solaris compilation error.
377- Added /vis/ogl/set/fade and displayHeadTime.
378
37914th August 2006  John Allison  (opengl-V08-01-02)
380- Needs visman-V08-01-02.
381- G4OpenGLStored: Implemented display-by-time.  Only available in
382  stored mode at present.  Only implemented for circle, square,
383  polyline and polymarker at present, enough for currently available
384  trajectory models.  Time is communicated via G4AttValues.
385- Added G4OpenGLViewerMessenger.
386- Added /vis/ogl/set/startTime and endTime of displayed objects.
387- All factories: Instantiated G4OpenGLViewerMessenger.
388- G4OpenGLViewer: Added fStart/EndTime.
389- G4OpenGLXViewer.cc: Graceful recovery from unexpected tokens in
390  spewPrimitiveEPS and spewSortedFeedback.
391
39217th July  John Allison  (opengl-V08-01-01)
393- Added /vis/oglx/set/printEPS (prints eps file on every update).
394
3953rd July 2006  John Allison  (opengl-V08-01-00)
396- Elimination of redundant variable doublebuffer and implementation of
397  FinishView in all viewers.
398
39930th May 2006  Joseph Perl  (opengl-V08-00-08)
400- G4OpenGLImmediateWin32Viewer: Removed tests on doublebuffer since that
401  variable seems to have random behavior and should be assumed false for
402  this viewer.
403
40429th May 2006  Joseph Perl  (opengl-V08-00-07)
405- G4OpenGLWin32Viewer, G4OpenGLImmediateWin32Viewer, G4OpenGLStoredWin32Viewer:
406  Removed common FinishView and instead made separate FinishView for the two different
407  versions of this viewer since each wants a different buffer swapping behaviour.
408
40912th May 2006  John Allison  (opengl-V08-00-06)
410- G4OpenGLWin32Viewer: Fixed buffer swapping behaviour.
411
41228th April 2006  John Allison  (opengl-V08-00-05 - needs visman-V08-00-14)
413- G4OpenGLStoredX/Xm/Win32Viewer.cc: Fixed buffer swapping problem when
414  recomputing transients.
415
41624th April 2006  John Allison  (opengl-V08-00-04)
417- Fixed compilation problem on Windows.
418
41919th April 2006  John Allison  (opengl-V08-00-03)
420- G4OpenGLSceneHandler, G4OpenGLStoredSceneHandler and
421  G4OpenGLImmediateSceneHandler:
422  o Implemented Begin/EndPrimitives2D (needs visman-V08-00-12 and
423    greps-V08-00-02).
424  o Migrated to direct access to G4PhysicalVolumeModel.
425- G4OpenGLStoredX/Xm/Win32Viewer.cc: bug fix for conditional drawing
426  of display lists in DrawView.
427
42814th March 2006  John Allison  (opengl-V08-00-02)
429- Refined display list building and re-drawing algorithm.
430  o G4OpenGLStoredSceneHandler::EndModeling: Changed to GL_COMPILE_AND_EXECUTE.
431  o Avoided unnecessary re-execution in DrawView (X, Xm and Win32).
432- G4OpenGLStoredSceneHandler::RequestPrimitives: Refined display list
433  re-use algorithm.  In test19 with global culling off, numbers of
434  display lists used are:
435  o 191  No re-use:
436  o  73  Before this change: re-use except replicas (includes parameterised).
437  o  33  After this change: re-use except parameterised and replicas in radius.
438
43926th January 2006  John Allison  (opengl-V08-00-01)
440- Coworks with visman-V08-00-04 (removed fModified).
441- Removed references to fModified.
442- Tidying: Removed unnecessary ClearView.
443- G4OpenGLSceneHandler.cc: Added some (commented out) code for
444  possible future implementation of 2D drawing.
445- G4OpenGLXViewer.cc: Improved exception printing.
446
44711th January 2006  John Allison  (opengl-V08-00-00)
448- Improved efficiency: all DrawView's:
449  o Don't call ClearView.
450  o Set flag so SetView will not be called in ProcessView.
451  o Leave background colour to ClearView.
452- Used dynamic_cast<G4OpenGLViewer*>, no need for G4OpenGLViewerDataStore.
453- G4OpenGLXmViewerMessenger: Made a smart singleton; interrogates vis manager
454  for current viewer.
455
45624th November 2005  John Allison  (opengl-V07-01-09)
457- Protected G4OpenGLXmViewerMessenger with #ifdef G4VIS_BUILD_OPENGLXM_DRIVER.
458
45922nd November 2005  John Allison  (opengl-V07-01-08)
460- Added G4OpenGLXmViewerMessenger.
461- Corrected text position.
462- Made depth test for polyhedron GL_LEQUAL (slightly dominant).
463
46417th November 2005  Gabriele Cosmo
465- Fixed settings of background style for WIN32 viewers.
466
46713th November 2005  John Allison  (opengl-V07-01-07)
468- Implemented X-Window-style geometry hints in G4OpenGLXViewer.
469
47013th October 2005  John Allison  (opengl-V07-01-06)
471- Allowed any colour background.
472- Implemented non-uniform scaling.
473- Migration to <sstream>.
474
47529th September 2005  John Allison  (opengl-V07-01-05)
476- Added G4OpenGLViewerDataStore to facilitate access of viewer data by
477  scene handler.
478- Re-implemented transparency button in OpenGLXm.
479
48013th September 2005  John Allison  (opengl-V07-01-04 - needs visman-V07-01-02)
481- Implemented white background for all OGL viewers.
482- G4OpenGLSceneHandler.cc:
483  o Fixed hidden line removal (bug introduced in opengl-V07-01-02).
484  o Fixed treatment of triangular polygons for drawing of auxiliary/soft lines.
485  o Corrected GetTextColour(text).
486  o Corrected GetColour(polyhedron).
487
4885th September 2005  John Allison  (opengl-V07-01-03)
489- Bug fix: stored transparent objects were being lost.
490
4912nd September 2005  John Allison  (opengl-V07-01-02 - needs visman-V07-01-01)
492- Bug fix: edgeflags problem introduced with smooth shading in
493  opengl-V07-01-00.
494- Implementation of a "better algorithm" for the rendering of
495  transparent polyhedron objects.  It renders all opaque objects
496  first, then renders the transparent objects with the depth buffer in
497  read-only mode (see OpenGL Programming Guide).  It uses the new
498  facility in G4VSceneHandler::ProcessScene for an optional second pass
499  of the run-duration models in the scene.  Note this algorithm is
500  still only an approximation.  It will still give the wrong blended
501  colour if two transparent objects are rendered front first.  For
502  nested transparent objects, this is unfortunate, because
503  G4PhysicalVolumeModel traverses Geant4's mother-daughter hierarchy
504  in such a way that mothers come first.  Also, there is no guaranteed
505  relationship between the order of rendering and the depth of two
506  transparent objects if they are at the same level or in different
507  branches of the hierarchy.  Still, the only error will be an
508  incorrect colour - the objects will still give the appearance of
509  transparency, so it's a pretty good algorithm.  (An even better
510  algorithm would be to attempt to render the facets in depth order,
511  deepest first.  But how do you calculate the depth - centre of area,
512  deepest corner?  One can still imagine pathalogical cases that would
513  sometimes give the wrong colour.  Also, for stored mode, the order
514  is fixed in a display list so when the user rotates the view, one
515  would lose the depth ordering.  I think we have to accept that
516  blending in OpenGL is only ever an approximation.  For accurate
517  blending, use RayTracer.)
518
51928th August 2005  John Allison  (opengl-V07-01-01)
520- Half-way implementation of rendering of transparent polyhedron
521  objects.  In this implementation, no account is taken of the order
522  of rendering.  Transparent objects are rendered with depth testing
523  off so that objects behind can still be seen.  But this means that
524  opaque objects in front do not obscure them - and they jolly well
525  should!  A better algorithm is to render all opaque objects first,
526  then render the transparent objects with the depth buffer in
527  read-only mode (see OpenGL Programming Guide).  This is going to
528  take a little more thought - see opengl-V07-01-02.
529
53020th July 2005  John Allison  (opengl-V07-01-00)
531- Introduced smooth shading, taking advantage of hitherto un-noticed
532  feature of HepPolyhedron::GetNextFacet that calculates the normals
533  at each vertex so that curved surfaces are rendered more
534  realistically (Gouraud shading).
535- G4OpenGLImmediateSceneHandler.cc: Removed unnecessary #include's.
536- G4OpenGLXmViewer.cc: Fixed to use window size hints.  This changes
537  the default window size.  It used to be 400x400, hardcoded in
538  G4OpenGLXmViewer.cc, but now it picks up the
539  G4ViewParameters::GetWindowSizeHintX/Y, which defaults to 600x600.
540  The user may change it on the command line, e.g:
541    /vis/open OGLSXm 500
542  or
543    /vis/viewer/create ! ! 500
544
54530th May 2005  John Allison  (opengl-V07-00-03)
546- Fixed compilation problem in OpenGL on SUN.  (Replaced multimap by
547  map of vectors in G4OpenGLFontBaseStore.)
548
5494th May 2005  John Allison  (opengl-V07-00-02)
550- Restored sequence Set/Clear/DrawView in ClearTransientStore.  (It
551  was taken out to prevent recursive calling, but that seems to be OK,
552  and it is needed to implement refresh at end of event/run.)
553
55422nd April 2005  John Allison  (opengl-V07-00-01)
555- Rationalised work of opengl-V07-00-00.  Functionality unchanged.
556  o G4OpenGLViewer.hh: Created virtual void CreateFontLists(){}.
557  o In all concrete viewers, added call to CreateFontLists().
558  o Moved font code for X to G4OpenGLXViewer::CreateFontLists().
559  o There is no longer a need to implement in the XmViewer, since it
560    now inherits.  Thus the font code now only appears once for X.
561  o Awaiting implementation for WIN32.
562
56317th April 2005  John Allison  (opengl-V07-00-00)
564- Based on vis-V07-00-13.
565- Implemented text for X-Windows viewers.  Uses glXUseXFont, which
566  creates display lists for nominated fonts.  Simple-minded scheme in
567  which each viewer creates its own font display lists for a variety
568  of sizes, which are accessed by the scene handler through a new
569  class, G4OpenGLFontBaseStore.  Affected methods:
570    G4OpenGLXViewer::CreateMainWindow()
571    G4OpenGLXmViewer::CreateMainWindow()
572    G4OpenGLSceneHandler::AddPrimitive (const G4Text& text)
573
57418th November 2004  John Allison  (opengl-V06-02-07)
575- Removed redundant fLastVP from G4OpenGLStoredSceneHandler.
576
57715th November 2004  Guy Barrand
578- G4OpenGLWin32Viewer::ShowView : glFlush was not sufficient
579  to see trajectories (for example with N03). Correct so that
580  ShowView do a FinishView that does : glFlush, wglSwapBuffer
581  and empty the Windows message queue.
582
58322nd September 2004  John Allison  (opengl-V06-02-06)
584- doxygen output to tmp area.
585- Trap non-regular polyhedrons.
586
58713th September 2004  Gabriele Cosmo  (opengl-V06-02-05)
588- G4OpenGLTransform3D.cc: simplified implementation for GetMatrix()
589  to allow for porting on CLHEP-1.9.X series.
590
59123rd July 2004  John Allison
592- Draws auxiliary edges if required.
593- Added auxiliary edge button.
594
59516th July 2004  John Allison  (opengl-V06-02-04)
596- Refinements to hidden line, hidden surface removal.
597
59814th July 2004  John Allison  (opengl-V06-02-03)
599- Removed superfluous #include "G4VisManager.hh" from G4OpenGLXmViewer.cc.
600
60113th July 2004  John Allison  (opengl-V06-02-02)
602- Hidden line *and* hidden surface removal now works.
603
6049th July 2004  John Allison  (opengl-V06-02-01)
605- Fixed long-standing problem with hidden line removal.
606- Improved messages on failure to get visual.
607- Added GLX_STENCIL_SIZE explicit request to visual attributes - most
608  systems provided by default anyway, so no effect.
609
6101st July 2004  John Allison  (opengl-V06-02-00)
611- Rationalised G4OpenGLSceneHandler ready for hidden line removal.
612- Bug fix in G4OpenGLXmPanningCallbacks.cc for dolly control.
613
61418th June 2004  Gunter Folger (geant4-06-02)
6159th June 2004  Gabriele Cosmo  (vis-V06-01-03)
6167th June 2004  Gabriele Cosmo  (vis-V06-01-02)
617- GNUmakefile and disclaimer changes - see visualization/History.
618
6199th April 2004  John Allison  (vis-V06-01-01 + interfaces-V06-01-00)
620- Tagged OpenGL as below.  Joint with interfaces-V06-01-00.
621
6227th April 2004  Guy Barrand
623- visualization/OpenGL/* : use the G4OpenGL.hh file.
624- Added : visualization/OpenGL/include/G4OpenGL.hh to encapsulate
625  the include of gl/gl.h and gl/glu.h that may be platform dependant.
626  It permits to rm some #ifdef WIN32 spread in the code. It opens also
627  the way to the usage of the Apple OpenGL on a Mac.
628
62917th February 2004  John Allison  (opengl-V06-00-00)
630- Fixed bug #581: wrong order of statements in
631  G4OpenGLXViewer::~G4OpenGLXViewer (see bug report).
632
6334th October 2003  Gabriele Cosmo  (vis-V05-02-01)
634- GNUmakefile:
635  o replaced "digits+hits" with "digits_hits".
636- Coworks with "geometry-V05-02-00" and "digits_hits-V05-02-00".
637
63822nd September 2003  John Allison  (vis-V05-02-00, greps-V05-02-00)
639- Cosmetic change to regularise names:
640  o changed _Feedback3Dcolo to G4OpenGLXViewerFeedback3Dcolor.
641  o changed _DepthIndex to G4OpenGLXViewerDepthIndex.
642
64323rd June 2003  Guy Barrand  (opengl-V05-01-02)
644- Commit a first implementation of G4OpenGLWin32Viewer.
645
64610th June 2003  Gabriele Cosmo  (opengl-V05-01-01)
647- More fixes for warnings in viewers classes.
648- Added inclusion of <windows.h> for WIN32 platforms when GL headers
649  are included.
650
65105th June 2003  Gabriele Cosmo  (opengl-V05-01-00)
652- Fixes for porting compilation on WIN32:
653  o G4OpenGLWin32Viewer[.hh.cc]: removed inclusion of <GL/glx.h>.
654  o G4OpenGLViewer.cc: replaced local variables near/far with pnear/pfar
655    since declared 'obsolete' in WIN32 platforms.
656
65727th November 2002  John Allison  (vis-V04-01-08)
658- Improved algorithm of CompareForKernelVisit.
659
66011th November 2002  John Allison  (opengl-V04-01-02)
661- Corrected inclusion of G4OpenGLXViewer #ifdef X_DRIVER.
662- Added G4OpenGLSceneHandler::AddThis for trajectories and hits - simply
663  call default but there as a marker and encourager.
664- Added tracking and digits+hits/hits to GNUmakefile.
665
66616th October 2002  John Allison  (opengl-V04-01-01)
667- Fix for WIN32.  Now compiles but viewer not implemented.
668
66924th June 2002  John Allison  (opengl-V04-01-00)
670- Further cosmetic changes in G4OpenGLXViewer.cc for DEC compiler.
671
67210th June 2002  John Allison  (opengl-V04-00-03)
673- Cosmetic changes for SUN-CC in G4OpenGLXmConvenienceRoutines.cc.
674
6756th June 2002  John Allison  (opengl-V04-00-02)
676- Cosmetic changes for GNU compiler in G4OpenGLXViewer.cc.
677
67823rd February 2002  John Allison  (opengl-V04-00-01)
679- Changes to encourage compilation on Windows in preparation for
680  implementation of G4OpenGLWin32Viewer.  Removed spurious includes of
681  glx.h, unistd.h and assert.h.
682
68324th August 2001  John Allison  (vis-V03-02-13)
684- Limited the printing of warnings in
685  G4OpenGLSceneHandler::AddPrimitive (const G4Text& text).
686
68714th August 2001  John Allison  (vis-V03-02-11)
688- Improved KernelVisitDecision.
689- Fixed a few small bugs in multiple "stored" viewers, but see next item.
690- There's an outstanding bug in OpenGL Stored.  If there is more than
691  one viewer controlled by a scene handler, after a ClearStore on the
692  scene handler, e.g., with /vis/scene/notifyHandlers, the first
693  viewer to get refreshed should trigger the display list rebuild, but
694  the second need not.  However, when the second viewer's turn comes,
695  the display lists are there, and are called, e.g.,
696  G4OpenGLStoredXViewer::DrawView calls
697  G4OpenGLStoredViewer::DrawDisplayLists that calls glCallList, but
698  nothing appears on the screen.  To overcome this there is some
699  temporary code in G4VViewer::NeedKernelVisit which marks *all*
700  viewers to force a rebuild.  To see the symptoms, comment out that
701  temporary code and issue these commands:
702    /vis/verbose c
703    /control/verbose 2
704    /vis/scene/create
705    /vis/scene/add/volume
706    /vis/sceneHandler/create OGLSX
707    /vis/viewer/create ! ! 1
708    /run/beamOn
709    /vis/viewer/create ! ! 1
710    /vis/viewer/select viewer-0
711    /vis/viewer/viewpointThetaPhi 20 20
712    /vis/viewer/select viewer-1
713    /vis/viewer/viewpointThetaPhi 40 40
714    /vis/viewer/set/style surface
715    /vis/viewer/refresh
716    /vis/viewer/select viewer-0
717    /vis/viewer/refresh
718    /vis/viewer/select viewer-1
719    /vis/viewer/set/style wireframe
720    /vis/scene/notifyHandlers
721  You may have to do this too:
722    /vis/viewer/select viewer-0
723    /vis/scene/notifyHandlers
724  One of the viewers is empty.  Curious!!
725
7269th August 2001  John Allison  (vis-V03-02-10-00)
727- Implemented G4OpenGLStoredSceneHandler::ClearTransientStore()
728- Removed G4OpenGLSceneHandler::AddPrimitive (const G4Polymarker&) (it only
729  invoked G4VSceneHandler::AddPrimitive (const G4Polymarker&) which is
730  picked up by inheritance anyway.
731- Removed lots of unnecessary header files from G4OpenGLStoredSceneHandler.cc.
732- Corrected order of calling base class functions in
733  G4OpenGLStoredSceneHandler::Begin/EndModeling.
734
73524th July 2001  John Allison  (vis-V03-02-06)
736- G4OpenGLSceneHandler::AddPrimitive (const G4Text&) handles transformation.
737
73814th July 2001  John Allison (opengl-V03-02-00)
739- Fixed crash in optimised mode: added Initialise() to viewers so
740  that windows are opened after viewers are fully constructed.
741
7422nd April 2001  John Allison (opengl-V03-00-01 wrt vis-V03-00-09)
743- Tidied G4OpenGLXmViewer callback code.  Removed superfluous header files.
744
7457th March 2001  John Allison
746- Changed char* to const char* in many places and that gave problems in
747  calls to Xt and Xm.  Hope all's OK.  Differences:
748    cvs diff -r vis-V03-00-06 vis-V03-00-07
749
75025th January 2001  John Allison  (opengl-V03-00-00)
751- Implemented running re-calculation of up-vector in the case of "object
752  rotation" (lights move with camera) to prevent "flipping" of view when
753  camera passes through up-vector.  Note that the default is "camera
754  rotation" (lights do not move with camera, i.e., remain fixed relative
755  to object) so the default is that this "flipping" can happen.  To set
756  "object rotation" (lights move with camera) use
757  /vis/lights/move_with_camera true (soon to be
758  /vis/viewer/set/lights move-with-camera) or click "Object" radio button
759  on Rotation Panel in OpenGLXm mode.
760- Changed some objects to references for efficiency.  E.g.:
761  const G4Vector3D& vp = pView->fVP.GetViewpointDirection ().unit ();
762
76322nd May 2000  John Allison  (opengl-V01-01-00)
764- Fixed slow response of 2nd window of OpenGLXm.  Worked around Mesa bug
765  by sharing static visuals in G4OpenGLXViewer (Guy Barrand):
766    static XVisualInfo* vi_single_buffer;
767    static XVisualInfo* vi_double_buffer;
768- Removed ChooseVisual from G4OpenGLXmViewer.cc - done in base class
769  G4OpenGLXViewer.
770- Protected double deletion of window in destructors of G4OpenGLXmViewer
771  and G4OpenGLXViewer (Guy Barrand).
772- Changed requested bits per colour to r,g,b = 1,1,1 in G4OpenGLViewer.cc.
773- Corrected order of CreateMainWindow() and InitializeGLView() in X*Viewer
774  constructors.
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