[Vrmlengine-main] Question on Moving the Camera Around for a Set Interval

[Shawn H. <sha...@gm...>]

Hi,

I am trying to modify the View3DScene code to add a new menu pic that allows
me to move the camera position around for a set interval and take a screen
shot along the way, like a controlled walking movement.  I want to be able
to automatically collect data from various VRML models and use them for
analysis later.

I created a new procedure "GenerateScreenshots" and in it I have the
increment CameraPos[0], [1], and [2] and then I am trying to do:

 SceneAnimation.Scenes[0].ViewerChanged(CameraPos, CameraDir, CameraUp);
 Glw.EventResize;
 Glw.PostRedisplay;

thinking that it would change the camera's position but it isn't.  I am
getting the screenshots but the camera doesn't move.  Am I mssing a call to
a procedure that updates the screen?

I'm sorry to ask but I have been fiddling around with this for a while now
and I didn't see any examples that showed me how to do this.

Thank you,

Shawn