NIRVE Implementation

• Standard C

• Invokes OpenGL for graphic output

• Invokes Xlib for graphic input (mouse, keys)

• A few Unix system calls (system, getenv)

• Launches Tcl/Tk process

• Tcl/Tk and graphics processes are event handling loops

  • Exchange information via generated X events

• Uses Netscape for text displays

• Running on SGI, but no known dependencies thereon

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