This is the command xshowtrace that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
xshowtrace - interactively show rays traced on RADIANCE image under X11
xshowtrace [ -s ][ -T ][ rtrace options ] octree picture
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.
Use xshowtrace online using onworks.net services