One way to tell Ogles which data to use is a script file. The path and the name of the data files are put into a plain text file. This text file needs to have the suffix '.ogle' and is passed to Ogles as program argument.

As the script file really is pedantic, it is upmost important to avoid typos in the script file!

Example:

In the script file named 'ogles.ogle':
#
# comments
#
dataView: Opacity_Renderer colormap.type = COLORMAP_NONE
../data/ho_ct_planning.hd
../data/ho_t2_fused.hdr
../data/ho_mpr_fused.hdr
#