Developments for Geant4.9.4

 

 

Geant4 Workshop

Laurent Garnier

Plan

Plan

Viewer and UI integration (Geant4.9.3)

Viewer and UI integration

This was before Big change in Geant4 Qt Driver

• Integration of viewers into UI
• 

Viewer and UI integration (History)

What's new ?

• History/Cout/Help are now integrate into UI
• Viewers can be view as Tab
• We can filter Cout messages
• Easy Help Tree to find a command and its help
• Still old things... : Make videos...

Viewer and UI integration (Cout)

Viewer and UI integration (Cout with filter)

Viewer and UI integration (Help view)

Plan

Rotations

Two rotation mode are available : Theta/Phi rotation and 'google earth' like rotation

• Theta/Phi rotation : The default mode
  • Ensure the 'up' vector to be vertical direction
  • Impossible to reach some points of view
  • 'Not intuitive' behaviour on some angles
• 'google earth like' rotation
  • 'Up' vector is NOT vertical
  • Could reach all volume point of view
  • More 'intuitive' rotation mode

Plan

Keyboard Shortcuts

All vis commands are available with Keyboard shortcuts. Ex :

• ALT + Click and move mouse : rotate volume (google like)
• Click and move mouse : rotate volume
• CTRL + Click and mouse move : zoom in/out
• SHIFT + Click and mouse move : move camera point of view
• Arrow : move volume
• '+'/'-' : move volume toward/forward
• SHIFT + Arrows : rotate volume in phi/theta
• SHIFT + Arrows : rotate volume in vertical/horizontal
• CTRL + '+'/'-' : zoom into volume
• H : reset view to initial position
• SPACE : Start/Pause video recording
• RETURN : Stop video recording

Plan

Speed improvments in OpenGL drivers

We loose time when moving a component is in visualization part.
Two major bootle neck are : glBegin (47% of OGL time) and glFlush (44%).After removing redundant transmissions of points and unnecessary redraws :

• Mac OSX 10.5 : Immediate Mode

  	First draw time (sec)	Rotation (fps)
  Geant 4.9.3	5	0,46
  Geant 4.9.4	6	0,53

  Mac OSX 10.6 : Immediate Mode

  Geant 4.9.3	5	0,6
  Geant 4.9.4	6	0,6

  Mac OSX 10.5 : Stored Mode

  Geant 4.9.3	94	1,2
  Geant 4.9.4	72 (x1,3)	2,66 (x2,2)

  Mac OSX 10.6 : Stored Mode

  Geant 4.9.3	13	3,73
  Geant 4.9.4	11 (x1,2)	5,3 (x1,43)

• In resume :
  • About 20-30% faster at launch in Store Mode.
  • Around 1,5 - 2 times faster in moving/rotate a volume in Store Mode.

Plan

Make posters

• Olders Geant4 version can only export up to 'screen size' pictures
• How could we export bigger file in order to print, exchange screenshots, publish, or make poster ?
• Thanks to gl2ps library we could now export up to maximum graphic card capacity size (Ex: Up to 8192 x 8192 on MacBook Pro)
• How does it work ?

Make posters

Some G4 commands :

• /vis/ogl/set/printMode (vectored or pixmap)
• /vis/ogl/set/printFilename (default G4OpenGL_XX)
• /vis/ogl/set/printSize (up to maximum graphic card capacity)
• /vis/ogl/printEPS

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Make posters : 8192x8192 example

Plan

Developpement on all platforms

Qt visualization driver is available on all Platform.
Tested on all Geant4 supported computers and operating systems :

• WinXp
• SLC4
• SLC5
• MacOsX 10.5
• MacOsX 10.6

Developpement on all platforms

Windows Xp

Developpement on all platforms

SLC4

Developpement on all platforms

SLC5

Developpement on all platforms

What about Qt3 support ?

• Qt4 is available on all platform since 2005
• Only old platforms not already have qt4 configuration by default : SLC4 (but CERN support will end this year)
• Hard to maintain support for qt3. For the moment at least it compile.
• Because all people now have Qt4 install by default on their computer, I propose to stop support for qt3.

Plan

Remaining work to move from Qt driver Beta to Full Release

Still some configuration problems with Mac : (see bugzilla)

• Some problems with OpenGL configuration (but solved)
• Some OpenGL initialization problems (but solved)
• Any other problems ?
• ...move Qt driver out of the Beta for Geant4.9.4 !

Plan

Make an Geant4 application on mac (experimental)

• We could want to share and distribute ower geant4 programs by the same way than other mac/windows programs.
• Easy to share, distribute, relocate
• Nothing more to install files
• "All include" package : Include all libraries and macro in an 'app' file
• ->Working for the moment for mac, but could be done for other platform if needed

Questions ?