Hi,
I do a little UP of my question ...
Thanks :-)
Regards,
Vincent.
2009/6/3 Vincent Bourdier <vincent.bourd...@gmail.com>
> Hi all,
>
> I'm looking at a way to set some geodes with transparency level.
>
> This is the problem : these geodes share a stateSet with a lot of other
> geodes, so I cannot just set transparency on it...
>
>
> The only way I know to change the opacity on a geode is to set the StateSet
> with GL_Blend and change the color Array... That's why I need to un share
> the StateSet, because if I don't, Other geodes will be in Blend mode..
>
> For the moment, I've done a visitor which goal is to un-share the StateSet,
> but the graph traverse is slower now ... (FPS divided by two : lots of
> nodes)
>
> I would like to keep the StateSet, and to avoid beeing so much intrusive
> than changing the color Array...
>
> My algorithm is like this :
>
> ChangeAlpha(node * n)
> {
> if node as material
> change material with alpha component
> else
> if node is a group
> for each children
> ChangeAlpha(group->getChild(i)
> else if node is a geode
> set StateSet with BLEND and Change colorArray with alpha.
> endif
> endif
> }
>
> Do you have any idea ?
>
> Thanks.
>
> Regards,
> Vincent.
>
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