Rajamiyer Ravichandran wrote:
>
> If anyone wants to do some scribbling features on a
> canvas3d with 3d scene, then you must use Justin
> Couch's ScribbleOverlay code (Thanks Justin).
[snip]
> Is there something we can do, do avoid this
> flickering.
Right at the moment, it is an implementation problem. I've been meaning
to dig into Will's code and get my stuff swapped over to using that
(It's the version I'll be putting into j3d.org). Basically, the problem
currently is that the overlay code attempts to make textures as big as
possible. When only updating a small amount, such as an individual mouse
movement, the entire texture needs to be updated. With big textures,
comes a performance hit. What I need to do is allow the code to set up
smaller areas so that an individual change doesn't make such a huge
impact.
Again, it's a time thing. That's very high on the priority list, along
with the spline surface implementation. Right at the moment, I'm
concentrating on some Xj3D work rather than anything else (PROTO
implementation) because that is what most of the VRML people want first.
PROTOs should take me a couple more days yet. So my guess is at least a
week before I can attend to these other areas.
--
Justin Couch http://www.vlc.com.au/~justin/
Freelance Java Consultant http://www.yumetech.com/
Author, Java 3D FAQ Maintainer http://www.j3d.org/
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"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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