Strange Red Lines and Vanishing object with Ardor3D

I'm getting a weird effect in my scene having red lines that I didn't put in the scene. These appear/disappear as I rotate my scene object. The scene object can also have parts of it missing.

If I place my scene object around the origin (0,0,0) I don't get these effects but if I place it where it should be placed (ie; large x, y values: x=182148, y= 7618202; z=851.1068) then these effects start to appear.

See the 2nd image in which an area of triangles vanish at a particular rotation.

It's as if a clipping plane is interferring with the scene object.

Has anyone else experienced this problem and know of a solution?





If I translate the object to (0,0,0) then the red lines disappear but if translate the object forward it starts to vanish:



I worked out that the vanishing object is due to the far frustum plane not being set. When this is set via:

  camera.setFrustumPerspective(45.0, 1.6, 1.0, 1e08); // fov, aspect, near, far

it resolves the hidden surface.

However, I'm still getting red lines appear that are not part of the scene objects?

Thanks.

Hi

It comes from the frustum or the axis aligned bounding box.

I set up the frustum and don't set a model bbox, so how do I get rid of the red lines?

Is there a way of debugging the scene with the frustum?

Please try to modify a bit an existing publicly available example to reproduce this problem. For the moment, I don't really know from where those lines come.

I'll try building an example, but this may be difficult to replicate in a small example.

The key question, is how can they appear in the first place? If a user adds nodes to a root node, which are all rendered then what else exists in the scene that is also being rendered?

SOLVED - the red lines were due to having debugging turned on.

I was using Debugger defined in com.ardor3d.util.geom.Debugger.

When I turn this off the red lines go away.

Thank you for the feedback but I advise you to provide a SSCCE in the future if you really want to give us a chance to help you.