Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rochester!cornell!uw-beaver!tektronix!reed!nscpdc!cvedc!cmr From: cmr@cvedc.UUCP (Chesley Reyburn) Newsgroups: comp.graphics Subject: Re: Ray tracing and caustics. Message-ID: <494@cathy.cvedc.UUCP> Date: Sat, 11-Jul-87 12:07:10 EDT Article-I.D.: cathy.494 Posted: Sat Jul 11 12:07:10 1987 Date-Received: Sun, 12-Jul-87 18:07:33 EDT Reply-To: cmr@cvedc.UUCP (Chesley Reyburn) Organization: Computervision, Beaverton, Oregon Lines: 10 >why it looked less than real. There was something wrong with a transparent >object in it. I had to refer to a *real* transparent object to figure out >It has occurred to me that I have never seen such an effect in ray-traced >texture map for each matte object it eventually falls on. Has anyone >considered doing this? Henri Matisse (among others) noticed this around 1890. This is (I beleive) the entire basis for 'impressionism'. cmr