Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sample.eng.ohio-state.edu!purdue!bouma From: bouma@cs.purdue.EDU (William J. Bouma) Newsgroups: comp.graphics Subject: Re: Scene Description Standard Message-ID: <14567@medusa.cs.purdue.edu> Date: 2 May 91 22:22:27 GMT References: <13281@goofy.Apple.COM> Sender: news@cs.purdue.EDU Organization: Department of Computer Science, Purdue University Lines: 17 In article <13281@goofy.Apple.COM> turk@Apple.COM (Ken "Turk" Turkowski) writes: >The problem with a procedural language (like PostScript) is that >the definition of the language specifies exactly how the picture >is to be rendered. Procedural languages generally require a complex >parser that is really a compiler that builds expression trees, etc. In the case of PostScript this is just not true! PostScript does not require ANY parsing. If this shocks you try doing some reading on the subject of "Threaded Interpreters". I have written a TI based animation tool. It was very easy to write and it is flexible to do whatever I may want. The reason I wrote it was I wanted an interactive graphics environment on this HP I was using. I got tired of the awkward compile-load-run cycle that the C language requires. -- Bill