| Triangles disappeared when camera is distant. |
Author :
sky yang yingtian
Post Date :
2005-10-24 16:36
Posts :
2
|
Hi,
I have 2 problems here.
(1)I was using the vincent implementation of opengl es and the ug library. When i move my camera further away from the objects, many triangles "disappeared" thus causing lots of holes. This is not due to incorrect setting of the far plane(using perspective view). When I port the whole code over to using glut|es and hybrid's implementation of opengl es, there is no such problem.
(2)Also, there seems to be some bugs in the ugluPerspectivex function. Can't see my objects when i used this function. When I use ugluPerspectivef instead, no such problem. For the input parameters of ugluPerspectivex, i had used the correct fixed point representation.
Regards,
Yingtian. |
Author :
grant
Post Date :
2005-10-25 19:26
Posts :
117
|
Hi,
1) The Vincent library does have many issues. Have you specified the UG_DEPTH parameter when initializing the window.
2) There was a bug in the ugluPerspectivex function. The new fixed version of the GLU|ES can now be downloaded.
Regards,
Grant |
Author :
sky yang yingtian
Post Date :
2005-10-26 04:35
Posts :
2
|
Thanks for ur reply.
(1) Yes, I did specify UG_DEPTH.
(2) Yes, I am using the gluPerspectivex function of glu|es now.
Oh, I just realized this is not the forum for vincent library. Because your tutorial was based on their library, so I mistook this forum as the official one for vincent library(not sure if there is one though). So sorry. Just wanted to bring out this problem(possible bug) to them.
Thanks,
Yingtian. |
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