---- Reported by xerxes 2004-08-06 13:00:08 ---- There are some difficulties to loade native libraries (in this case cg.dll and cgGL.dll for the cgShader environment). These native libraries are not directly called upon by the java application, but by jogl.dll. When one native library (jogl.dll in this case) calls on another native library (cg.dll or cgGL.dll) the search seems to be conducted in the system path of the OS (i.e. ./ and windows/system32) and not in the java.library.path. The result is that applications using jogl and cgShaders must have cg.dll and cgGL.dll in the root path of the application, that is ./ or in windows/system32. This can be solved by putting the dlls in ./ when running the application from the command line, even though it isn't a fancy solution. However the problem becomes larger when using webstart, sine webstart can not locate these dlls even if they are jar-ed, signed and given as native libraries in the jnlp file. There are some solutions that I can think of: 1. Always load these files from the application System.loadLibrary("cg"); System.loadLibrary("cgGL"); This way they are allready loaded in the memory when jogl.dll wants to find them. This is the solution that I'm using and it works. 2. Try to install those files in the system path. Keep in mind that system path can differ on different systems (even if it is the same OS). 3. Incorporate cgShader environment dlls (cg.dll and cgGL.dll) in jogl.dll. 4. Write to Santa and wish that future releases of the JavaVM conducts the library search in java.library.path before the system path of the OS when a native library calls upon another native library. This allows the user to have another version of for example cgShader environment installed on the computer while the java application uses the tested version that has been shipped with it. ---- Additional Comments From kbr 2005-01-31 00:57:43 ---- Incorporated suggestion from submitter to call System.loadLibrary() on cg and cgGL before calling System.loadLibrary() on jogl_cg. Hopefully this will help Java Web Started applications by allowing the person doing the deployment to also deploy the Cg runtime environment if desired. --- Bug imported by sgothel@jausoft.com 2010-03-24 07:46 EDT --- This bug was previously known as _bug_ 102 at https://jogl.dev.java.net/bugs/show_bug.cgi?id=102