From: MLM Veraart (veraart++at++fel.tno.nl)
Date: 12/02/2002 04:31:14
Brad Schwagler wrote:
>
> I have a driving simulator with many objects in the
> scenegraph. If I make the clipping plane closer,
> distant objects are not drawn and the program runs at
> an acceptable drawing rate. This is what I want, but
> how can I still draw the sky-dome? I tried setting a
> pre-draw callback on the sky model where I would
> temporarily move back the clipping plane. The problem
> is that the channel and pipe are NULL in the callback
> func. Would it be better to use hundreds of LOD nodes
> on each indvidual object instead? Is there a
> different way of overriding the clipping plane?
> thanks
There are two ways I know to solve this.
1) remodel the dome a bit smaller
2) Put the dome in a separate pfScene.
Use an other channel mapped 'behind'/first to the window.
In this channel put the dome scene and set the clipping range right.
In the other scene disable the clearing of frame and Z-buffer in the
draw-callback.
Mario
This archive was generated by hypermail 2b29 : Mon Dec 02 2002 - 04:34:10 PST