Justin,
I'm in no way a 3D expert, but maybe that's why this idea occurred to
me:
Can you make it 'rendered' but also 100% transparent?
-Kyle
Justin Couch wrote:
> I'm stuck. For once I can't work out how to convince Java3D to do
> something that I would really like to be able to do. Hopefully someone
> has some bright idea that I've missed.
>
> VRML defines a node called Collision which allows a user to either turn
> off collision avoidance/terrain following (it is on by default in VRML)
> and/or to provide proxy objects for collision handling. The proxy would
> be used to simplify a complex object like a mesh into something simple,
> like a box.
>
> My basic problem is that in Xj3D we do everything through picking.
> Navigation is performed using a pick on the rendering scene graph each
> frame. This is great when you have real geometry, but when you want to
> not use real geometry, but instead use the proxy geometry, things get
> complex. I can't seem to find a way of putting the proxy geometry into
> the scene and have it be used as the target for picking and not have it
> render. From what I can determine, picking only works on objects that
> are rendered. For example, if I put in geometry as a proxy and set the
> rendering attributes to be not rendered (which is a real pain as the
> appearance may be many levels down from the top of the proxy) the
> picking seems to fail to find the proxy object. It's hard to tell from
> the documentation whether or not this is a good thing.
>
> Anyone have some insights or pontifications about how to go about this?
>
> --
> Justin Couch http://www.vlc.com.au/~justin/
> Java Architect & Bit Twiddler http://www.yumetech.com/
> Author, Java 3D FAQ Maintainer http://www.j3d.org/
> -------------------------------------------------------------------
> "Humanism is dead. Animals think, feel; so do machines now.
> Neither man nor woman is the measure of all things. Every organism
> processes data according to its domain, its environment; you, with
> all your brains, would be useless in a mouse's universe..."
> - Greg Bear, Slant
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