Import Geant4 3.1.0 source tree

source/visualization/OpenGL/History

@@ -1,4 +1,4 @@
-$Id: History,v 1.2 2000/05/22 08:34:58 johna Exp $
+$Id: History,v 1.4 2001/03/07 15:29:49 johna Exp $
 -------------------------------------------------------------------
 
      =========================================================
@@ -20,6 +20,24 @@ committal in the CVS repository !
 History file for visualization/OpenGL
 -------------------------------------
 
+7th March 2001  John Allison
+- Changed char* to const char* in many places and that gave problems in
+  calls to Xt and Xm.  Hope all's OK.  Differences:
+    cvs diff -r vis-V03-00-06 vis-V03-00-07
+
+25th January 2001  John Allison  (opengl-V03-00-00)
+- Implemented running re-calculation of up-vector in the case of "object
+  rotation" (lights move with camera) to prevent "flipping" of view when
+  camera passes through up-vector.  Note that the default is "camera
+  rotation" (lights do not move with camera, i.e., remain fixed relative
+  to object) so the default is that this "flipping" can happen.  To set
+  "object rotation" (lights move with camera) use
+  /vis/lights/move_with_camera true (soon to be
+  /vis/viewer/set/lights move-with-camera) or click "Object" radio button
+  on Rotation Panel in OpenGLXm mode.
+- Changed some objects to references for efficiency.  E.g.:
+  const G4Vector3D& vp = pView->fVP.GetViewpointDirection ().unit ();
+
 22nd May 2000  John Allison  (opengl-V01-01-00)
 - Fixed slow response of 2nd window of OpenGLXm.  Worked around Mesa bug
   by sharing static visuals in G4OpenGLXViewer (Guy Barrand):