[ggt-checkins] cvs commit: GGT/modules/GMTL/gmtl QuatOps.h

[Kevin M. <sub...@us...>]

subatomic    2002/02/28 07:06:29 PST

  Modified files:
    modules/GMTL/gmtl    QuatOps.h 
  Log:
  increased performance of operator*( quat, quat) by 33%
  
  this in effect increased performance of Xforms xform(quat,vec) and operator*(q,v) by 12% for
  floating (32 and 64), and by 30% for integer types.
  
  did this with return value optimization.  previously this func was using mult(), which needed a
  temporary to prevent aliasing.  operator* has no aliasing problems, so could be optimized...
  
  Revision  Changes    Path
  1.4       +11 -6     GGT/modules/GMTL/gmtl/QuatOps.h

http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/ggt/GGT/modules/GMTL/gmtl/QuatOps.h.diff?r1=1.3&r2=1.4&diff_format=l