glCallList() probelem

[sujan.dasmahapatra]

Friends
This is an opengl question.
I am trying to call opengl items using
glCallList(index)
While i was creating many objects I was holding their indices in an array and while I am trying to display one at a time by calling
glCallList(index); passing the index.
But its displaying the most recent object created.
While the index value is correct but its not displaying previousobjects.

Can anyone help me undertsnad whats going on !
Any help would be appraciated.

Thanks
sujan

[soxs060389]

Give me some code and I "may" be able to help you.

[JohannesMunk]

Some code would be great, yes.

It sounds though, as your displaylist compilation is screwed up.

did you do it roughly along these lines:

Rendering:
 
int baseidx = glGenLists(itemcount);
for (int i=0;i < itemcount;++i)
{
  glNewList(baseidx+i, GL_COMPILE);
  // Render the item
  glEndList();
 }
...
Drawing:
 
for (int i=0;i < itemcount;++i)
{
   glCallList(baseidx+i);
}

Rendering:

int baseidx = glGenLists(itemcount);
for (int i=0;i < itemcount;++i)
{
  glNewList(baseidx+i, GL_COMPILE);
  // Render the item
  glEndList();
 }
...
Drawing:

for (int i=0;i < itemcount;++i)
{
   glCallList(baseidx+i);
}

To copy to clipboard, switch view to plain text mode 

You can of course also generate the list for each item separately. But you would need to save each index then.

Cheers

Johannes