On Radiance materials

<body> If you see this text, your browser does not support FRAMES. <p> FRAMES are pretty much a <a href="http://www.w3.org/">standard</a> these days, and they are supported by all major browsers (Netscape, Explorer, Opera, Lynx, ...), so we suggest that you update your software. <p> Sorry, but we can't help you in this matter. </body>