I have made some changes to tpatt.c based
on our earlier conversation. None of it
is too elegant (I am not too proud of the
code in "tpatt.c") but I hope it works for you:
- have put in command line options for setting
the pattern id and window origin/size. Just
type "tpatt" without any arguments to see the
options.
- have modified the "set_perspective()" function
to support asymmetric viewing frusta. In other
words I use the "window()" function as opposed
to the straight "perspective()" function. This
allows you to create asymmetric FOVs (in the
case of your vertical +15/-25). The FOVs are
hard-coded into that function!
- "draw_sphere()" draws the horizon line at full
intensity white now, just so you can check its
in the right place easily. Have also adjusted
the angular limits of the vertical/horizonal dots
to match your display.
- have compiled similar "tpatt_l" and "tpatt_r"
versions with the appropriate "rotate" command.
(line 253).
Cheers,
Tom
---
tom@reading.sgi.com
tel: +44 (118) 925 7604
fax: +44 (118) 925 7608
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