sutter@skat.usc.edu (Carl Sutter) (03/17/90)
I have submitted a program called RandPoly to cs.orst.edu and j.cc.purdue.edu. RandPoly is a simple program provided as an example to new programmers on the NeXT machine. It is not intended as an example of graphics speed, and makes little attempt at drawing as fast as possible. The basic idea is to draw polygons continuously, while allowing any other events to be handled. If Alpha is enabled, each polygon is drawn first into a bitmap, and then composited on the the screen using the SOVER compositing operation. This allows for the transparency you see at alpha values less than one (1.0 is opaque). Comments are welcomed to help make it a better demo program. The code is intended to provide clear, correct use of the App Kit, rather than fast, but dirty code. Carl F. Sutter Academic Software Development Consultant University of Southern California University Computing Services (213) 743-3826 sutter@ozone.usc.edu (NeXT mail)