trouble running the demos

Engines, Libraries and Tools Xith3D Forums
#1

When I try to run the demos for Xith3D I get this error:

Exception in thread “main” java.lang.NoClassDefFoundError: net/java/games/jogl/GLEventListener
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at com.xith3d.render.jogl.RenderPeerImpl.makeCanvas(RenderPeerImpl.java)

at com.xith3d.test.Xith3DTerrainTest.init(Xith3DTerrainTest.java)
at com.xith3d.test.Xith3DTerrainTest.main(Xith3DTerrainTest.java)

I’m using the Sun compiler(SDK v1.4.2) on a Windows ME compooter. If I do get the programs to run, (usually by using the cmdline c:\j2sdk1.4.2\bin\java com.xith3d…etc…
a box pops up (with the title bar saying “Xith3D”), but doesn’t display anything. I’m guessing that it’s because I need to do something else with the JOGL libraries and such, but can anyone confirm this? I didn’t make any additions to 1.4.2 until now, and I only followed the instructions in the Xith3D installation tute.

#2

Are you sure you placed all the necessary libraries in the appropriate directories? It looks like Jogl can’t be found.

#3

Can you run any of the JWS demo’s?

That will give you a good indication of whether your OpenGL is setup to handle Xith3D. (make sure xith3d.jar isn’t in your jre/lib/ext).

I assume you have installed using the http://xith.org/installing.php guide?

I agree it sounds like your JOGL native library (jogl.jar) isn’t in your classpath.

Will.

#4

Ok, I was an idiot and didn’t fix the runtest.bat file to comply with the locations of the files after i downloaded them. Now I get this error:

Exception in thread “main” java.lang.NoClassDefFoundError: com/xith3d/scenegraph/Node

Err… I sorta had a clue as to what was wrong w/ the last message, what the heck’s up with this one?

#5

Did you set the classpath to the appropriate folder?

#6

Wow, that was dumb. It a wonder what fixing your classpath variable will do.

Aight, so now I get the box to pop up, but nothing’s displayed… aren’t I a pain in the ass? Anytime I run a file, the window opens and has the title “Xith3D” but only is filled with a dark gray background… I think this is more than a classpath variable… any ideas?

#7

update your graphics card drivers (you need OpenGL1.2+)

Post all output in these forums so that we can help.

Will.

#8

How would I got about checking my graphics card? I’m a software guy, not a hardware guy.

#9

When I run any Xith3D program I get this output:


[divzero@localhost xith3d]$ java -cp libs/xith3d.jar com.xith3d.test.CubeTest
starting frame speed test
Init GL is net.java.games.jogl.impl.x11.X11GLImpl
OpenGL Renderer = Mesa X11
OpenGL Version = 1.4 Mesa 5.0.1
OpenGL Vendor = Brian Paul

That tells me I am running OpenGL 1.4. OpenGL 1.2 is the minimum for Xith3D.

Will.

#10

What brand video card are you using?

Go to their web site and download the latest software windows drivers for your card

Will.

#11

Sorry about the delay, it took a while to figure out what was going wrong here and why and then I had a history essay, so I didn’t get on much. Here is the output!

C:\Xith3D>java -cp libs/xith3d.jar com.xith3d.test.CubeTest
starting frame speed test
Init GL is net.java.games.jogl.impl.windows.WindowsGLImpl
OpenGL Renderer = GeForce2 MX/AGP/SSE2
OpenGL Version = 1.2.2
OpenGL Vendor = NVIDIA Corporation
OpenGL Extensions = GL_ARB_imaging GL_ARB_multitexture GL_ARB_texture_compressio
n GL_ARB_texture_cube_map GL_ARB_texture_env_add GL_ARB_texture_env_combine GL_A
RB_texture_env_dot3 GL_ARB_transpose_matrix GL_S3_s3tc GL_EXT_abgr GL_EXT_bgra G
L_EXT_blend_color GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vert
ex_array GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_packed_pixels GL_EXT
_paletted_texture GL_EXT_point_parameters GL_EXT_rescale_normal GL_EXT_secondary
_color GL_EXT_separate_specular_color GL_EXT_shared_texture_palette GL_EXT_stenc
il_wrap GL_EXT_texture_compression_s3tc GL_EXT_texture_edge_clamp GL_EXT_texture
env_add GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_cube
map GL_EXT_texture_filter_anisotropic GL_EXT_texture_lod GL_EXT_texture_lod_bias
GL_EXT_texture_object GL_EXT_vertex_array GL_EXT_vertex_weighting GL_IBM_textur
e_mirrored_repeat GL_KTX_buffer_region GL_NV_blend_square GL_NV_evaluators GL_NV
_fence GL_NV_fog_distance GL_NV_light_max_exponent GL_NV_packed_depth_stencil GL
_NV_register_combiners GL_NV_texgen_emboss GL_NV_texgen_reflection GL_NV_texture
_env_combine4 GL_NV_texture_rectangle GL_NV_vertex_array_range GL_NV_vertex_arra
y_range2 GL_NV_vertex_program GL_SGIS_generate_mipmap GL_SGIS_multitexture GL_SG
IS_texture_lod GL_WIN_swap_hint WGL_EXT_swap_control

All I get is a blank window grrr…

#12

Please download and install the current NVidia drivers.

#13

Thanks, that fixed it. The demos look really nice now!