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diff --git a/docs/overview/purpose.html b/docs/overview/purpose.html new file mode 100644 index 0000000..b507ec1 --- /dev/null +++ b/docs/overview/purpose.html @@ -0,0 +1,103 @@ +<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> +<html> +<head> + <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> + <meta name="GENERATOR" content="Mozilla/4.75 [en] (X11; U; Linux 2.4.0-test4 i686) [Netscape]"> +</head> +<body text="#000000" bgcolor="#E6E6FF" link="#0000EF" vlink="#51188E" alink="#FF0000"> + +<center> +<h2> +OpenGL<SUP><FONT SIZE="1">TM</FONT></SUP> +for Java<SUP><FONT SIZE="1">TM</FONT></SUP> +/ Overview / Purpose</h2></center> + +<center> +<h2> +Accessing Native OpenGL From The Java Side</h2></center> + +<ul> +<li> +OpenGL is the industry standard 3D API originally created by SGI (-> +<a href="http://www.opengl.org/">http://www.opengl.org</a> +).</li> + +<ul> +<br>OpenGL is known as the standard 3D API for serious CAD development, +creation & visualisation. +<p>Today, also games does use OpenGL as its underlying 3D renderer machine, +<br>because of its reliability and the existing consumer graphic cards +with OpenGL hardware acceleration. +<p>The benefits of OpenGL are described under: +<a href="http://www.opengl.org/About/About.html">http://www.opengl.org/About/About.html</a> +. +<br> </ul> + +<li> +GL4Java adds native OpenGL access to the Java Virtual Machine (JVM).</li> + +<ul> +<br>Applications as well as Applets can use OpenGL, +<br>if the GL4Java-Extension is installed on the users machine. +<p>Currently the following JVM's are supported +<br> +<ul> +<li> +Sun's JVM (all types of: Blackdown, IBM, ...)</li> + +<ul> +<li> +GNU/Linux</li> + +<li> +Other Unices (Solaris, Irix, ..)</li> + +<li> +Win9x, WinNT, ...</li> + +<li> +Macintosh ...</li> +</ul> + +<li> +MS-JVM (build >=3186 )</li> +</ul> + +<p><br>The Installation can be made via the GL4Java-Installer, +<br>which can be start from a Web-Browser and installs GL4Java on the fly +from the Web, +<br>or runs as a standalone application from your local harddisk. +<br> </ul> + +<li> +The performance of GL4Java applications depends on:</li> +</ul> + +<ul> +<ul> +<li> +The underlying JVM implementation (Native Threads/JIT/Hotspot/...)</li> + +<li> +The underlying OpenGL implementation (Hardware Accelerated vs Software +Rendering)</li> +</ul> + +<br> +<ul><font size=-1>With new world JVM's and OpenGL graphic cards and their +libraries,</font> +<br><font size=-1>you can expect a very usable performance - nearly high +as the native applications.</font> +<br><font size=-1>The biggest performance difference is the algorythm part</font> +<br><font size=-1>of your GL4Java application, which you might use and +need for geometric calculations,</font> +<br><font size=-1>game logic, etc. The OpenGL glue in the GL4Java-Extension, +which makes the connection</font> +<br><font size=-1>to the native OpenGL library, is as small as it can be +!</font></ul> +</ul> + +<center><img SRC="../images/gnubanner.jpg" NOSAVE height=60 width=468></center> + +</body> +</html> |