Radiance xshowtrace program

XSHOWTRACE(1)                                                    XSHOWTRACE(1)

NAME

       xshowtrace - interactively show rays traced on RADIANCE image under X11

SYNOPSIS

       xshowtrace [ -s ][ -T ][ rtrace options ] octree picture

DESCRIPTION

       Xshowtrace takes a RADIANCE octree and a picture file and  displays  it
       on  an X11 window server using ximage(1).  The picture should have been
       created from a previous rpict(1) or rvu(1) calculation using the  given
       octree.   Once the image is displayed, the user can use the 't' command
       of ximage to select points on  the  image  to  display  the  ray  tree.
       Rtrace  then produces a ray tree, which xshowtrace will display (in red
       on a color screen).  The -s option slows the display of each ray traced
       to  make it easier to follow the process.  The -T option traces rays to
       light sources, which are normally hidden.

AUTHOR

       Greg Ward

BUGS

       If the pointer is moved between the time 't' is pressed and  xshowtrace
       starts drawing rays, the rays will be displaced.

SEE ALSO

       oconv(1), rpict(1), rtrace(1), rvu(1), ximage(1)

RADIANCE                           11/15/93                      XSHOWTRACE(1)