gl4java-usergroup

Re: [gl4java-usergroup] native code excepting when drawing over 39000 vertices

[Kenneth B. R. <kbr...@al...>]

> my programm shut down when I try drawing high-poly models.
> If the model only has about 10000 polys everything is fine, but with a 
> test model consisting of 39538 vertices the program cause an exception 
> in native code.
> 
> I'm using glVertexPointer with all vertices in one FloatBuffer.
> 
> Does anyone have/had the same problem ?

It is likely a bug in your application. Try compiling your DLL
with debug information and running your program in the Visual C++
debugger.

Re: [gl4java-usergroup] native code excepting when drawing over 39000 vertices

[Kenneth B. R. <kbr...@al...>]

> >If i remember well, there is a maximum limit to the number of vertices you
> >can pass in an array. 39000 may be over ?
> >OpenGL has some function (glGet...) to get the limit, you should check it.
> >
> perhaps you're right, but I can't find any glGet.. Method to get the 
> limit, and I wonder why milksahpe can display it  without problems, 
> because it uses OpenGL to render the objects..
> 
> so I would be very lucky if you or s.o. else could tell me the complete 
> method name.

It looks like glGet(GL_MAX_ELEMENTS_VERTICES) is what you
need. However, this glGet seems to only be associated with
glDrawRangeElements, not glDrawArrays.

OpenGL for Java does almost no additional work beyond calling
down to OpenGL; however, it is definitely possible to crash the
JVM in the same way it is possible to crash a C program using
OpenGL.

Re: [gl4java-usergroup] native code excepting when drawing over 39000 vertices

[Michael N. <ze...@mo...>]

Hi Kenneth,

>
>It is likely a bug in your application. Try compiling your DLL
>with debug information and running your program in the Visual C++
>debugger.
>

Sorry my mail might be confusing:
I don't use my own native code, the excpetion must be in gl4java libs. I 
hoped it would be clear with the error log containing:

..
Current Java thread:
   at gl4java.GLFunc14JauJNI.glDrawArrays(Native Method)
..


greetings
 -Michael Nischt

Re: [gl4java-usergroup] native code excepting when drawing over 39000 vertices

[Jiba <Jea...@im...>]

On 2002.02.12 12:03:38 +0000 Michael Nischt wrote:
> Hi Kenneth,
> 
> >
> >It is likely a bug in your application. Try compiling your DLL
> >with debug information and running your program in the Visual C++
> >debugger.
> >
> 
> Sorry my mail might be confusing:
> I don't use my own native code, the excpetion must be in gl4java libs. I 
> hoped it would be clear with the error log containing:
> 
> ..
> Current Java thread:
>    at gl4java.GLFunc14JauJNI.glDrawArrays(Native Method)
> ..
> 
> 
> greetings
>  -Michael Nischt

If i remember well, there is a maximum limit to the number of vertices you
can pass in an array. 39000 may be over ?
OpenGL has some function (glGet...) to get the limit, you should check it.

Jiba

Re: [gl4java-usergroup] native code excepting when drawing over 39000 vertices

[Michael N. <ze...@mo...>]

Hi Jiba,,

>
>If i remember well, there is a maximum limit to the number of vertices you
>can pass in an array. 39000 may be over ?
>OpenGL has some function (glGet...) to get the limit, you should check it.
>
perhaps you're right, but I can't find any glGet.. Method to get the 
limit, and I wonder why milksahpe can display it  without problems, 
because it uses OpenGL to render the objects..

so I would be very lucky if you or s.o. else could tell me the complete 
method name.


greetings
 -Michael Nischt