Disappearing objects in orthographic views

[mahoney]

If I zoom my orthographic cameras out far enough, objects that are on the other side of the perpendicular axes start to disappear and the background greys out.
To clarify: if the front camera is in +Z space and it's "orthographic width" is at a high enough setting (typically 27 units or more), then any objects in -Z space disappear and the background turns grey.

I've tried toggling the usual solutions: clipping planes, auto render clip plane, making sure the cameras are facing the objects and aren't on the other side of the objects.

I've found that in such a situation, 2 things will make the objects visible.

1. changing the orthographic camera to a perspective camera

2. rotating the orthographic camera

for example: if I change the top camera's X rotation from -90 to -89.99999999, then the objects reappear.

Anyone have any idea what's going on?

[joojaa]

OGL views dont respect the auto render clipping planes (hence render). you probably need to change your clipping plane atributes to something larger! Or nmove the position of the camera in the direction of the projection. It is stlll a real camera but orthographic so anything behind it wont show up!

[mahoney]

Thanks for replying.

I don't have OpenGL installed on my machine. (Maybe that's the source of my problem.)

I already tried cranking the clipping planes to max setting and it has no effect. Only objects on the other side of the world origin disappear, and only when the orthographic width reaches a specific value, around 27 something. The problem doesn't appear to have anything to do with clipping planes, since all the objects reappear when I rotate the orthographic camera slightly, or change it to perspective.

[joojaa]

In reply to:
I don't have OpenGL installed on my machine. (Maybe that's the source of my problem.)

sure you do! Maya viewports work in open gl mode only no directX. OGL support is installed by default in 2000 and XP.
but maye bits hardware spesific could you posra afile that demonstrates the effect!