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Small objects distant from the world center flickers...
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| ....following the discussion in the other thread about hud and proximity
sensor (http://snipurl.com/fs4n) I've discovered what could be the
problem, and maybe someone else have already faced something similar...
The fact is that when i put small objects (size in the order of 3-4 in
vrml unit measure) in a location far away from the VRML center (let's
say 1.000.000), those start to "flicker" in a very weird way...
The same thing happens when I use a Layer2D or Layer3D and the camera is
far from the vrml-center: the more distant is the camera, the more is
the flicker...
*ANY* help would be greatly appreciated...and I really mean *any*, also
another work... ;)
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| Rex Melton 2005-06-23, 7:35 pm |
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The set of articles linked from here:
http://www.surak.com.au/~chris/Prec...isionInVRML.htm
describe the fundamental problem your encountering.
As for a solution, there are a variety of approaches - scaling, rearranging
the transform hierarchy - but they all involve keeping the distances within
the precision limits of the (float) data type.
bboy wrote:
> ...following the discussion in the other thread about hud and proximity
> sensor (http://snipurl.com/fs4n) I've discovered what could be the
> problem, and maybe someone else have already faced something similar...
>
> The fact is that when i put small objects (size in the order of 3-4 in
> vrml unit measure) in a location far away from the VRML center (let's
> say 1.000.000), those start to "flicker" in a very weird way...
>
> The same thing happens when I use a Layer2D or Layer3D and the camera is
> far from the vrml-center: the more distant is the camera, the more is
> the flicker...
>
> *ANY* help would be greatly appreciated...and I really mean *any*, also
> another work... ;)
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| Rex Melton ha scritto:
> The set of articles linked from here:
>
> http://www.surak.com.au/~chris/Prec...isionInVRML.htm
>
> describe the fundamental problem your encountering.
[...]
I'll give these document a read right now...thank you very much for your
answer! :)
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