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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