July 1994 Dr. Dobb's Journal MORPH.ASC MORPH.ZIP MORPHING 3-D OBJECTS IN C++ by Glenn Lewis TERRAIN.ASC GENERATING REALISTIC TERRAIN by Robert Krten TEXMAP.ASC TEXMAP.ZIP 3-D TEXTURE MAPPING by Jeremy Spiller RAY.ASC RAY.ZIP RAY: A RAY-TRACING PROGRAM IN C++ by Alain Mangen BARCODE.ASC BARCODE.ZIP A C++ CLASS FOR GENERATING BAR CODES by Douglas Reilly POSTMAN.ASC POSTMAN: A BRIDGE TO THE UNIX MAIL SYSTEM by Zongnan H. Lu POVRAY.ASC POVRAY.ZIP RAY TRACING AND THE POV-RAY TOOLKIT by Craig A. Lindley AUDIO.ASC AUDIO.ZIP EXAMINING AUDIO DSP ALGORITHMS by Dennis Cronin PARADIG.ASC PROGRAMMING PARADIGMS by Michael Swaine CPROG.ASC C PROGRAMMING COLUMN by Al Stevens AA794.ASC ALGORITHM ALLEY COLUMN by Tim Kientzle LETTERS.ASC LETTERS TO THE EDITOR UC794.ASC UC794.ZIP UNDOCUMENTED CORNER by Andrew Schulman and Ralf Brown