Hi Paul
Thanks for help, it was in the material data !
For the people who wants to change color or 3DS exported models, just get
your node and get the geometry's material to change it.
Regards,
Vincent.
2008/10/3 Paul Speed <[EMAIL PROTECTED]>
> I'm by no means an expert in this area but you should dump your loaded .3ds
> file as a .osg file and look and see what is causing it to be colored. As I
> recall, the 3DS is loaded with materials for anything that is colored... so
> setting vertex colors isn't going to help you.
>
> -Paul
>
> Vincent Bourdier wrote:
>
>> Up !
>>
>> I anyone have a solution or and idea, I take it, otherwise I have to draw
>> my geometry mysefl in OSG and it will be more complicated and less
>> beautiful.
>> Thanks a lot.
>>
>> Regards,
>> Vincent.
>>
>> 2008/10/3 Vincent Bourdier <[EMAIL PROTECTED] <mailto:
>> [EMAIL PROTECTED]>>
>>
>> Hi Gordon
>>
>> I make this :
>>
>>
>> if(geode.valid()){
>> geode->setDataVariance(osg::Object::DYNAMIC);
>> osg::ref_ptr<osg::Geometry> geom =
>> geode->getDrawable(0)->asGeometry();
>> if(geom.valid()){
>> geom->dirtyDisplayList();
>> geom->setUseDisplayList(false);
>>
>> osg::ref_ptr<osg::Vec4Array>
>> colors = new
>> osg::Vec4Array();
>> colors->push_back(planeList[i].color);
>> geom->setColorArray(colors.get());
>>
>> geom->setColorBinding(osg::Geometry::BIND_OVERALL);
>> }
>> }
>>
>>
>> But nothing changes... the color still not update !
>>
>> 2008/10/3 Tomlinson, Gordon <[EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>>
>>
>> Display list are most likely on by default try this
>> drawable->setUseDisplayList( false ); or if your only
>> doing
>> once dirty() the drawable
>> ( http://www.vis-sim.com/osg/osg_faq_1.htm#f24 )
>>
>> /Gordon/
>>
>> __________________________________________________________
>> /Gordon Tomlinson/
>>
>> /Product Manager 3D
>> //Email / : gtomlinson @ overwatch.textron.com
>> <http://overwatch.textron.com>
>>
>> __________________________________________________________
>> //(C)//:/ (+1) 571-265-2612*
>> *(W)//:/ //(+1) 703-437-7651//
>>
>> "Self defence is not a function of learning tricks
>> but is a function of how quickly and intensely one
>> can arouse one's instinct for survival"
>> - */Master Tambo Tetsura/*
>>
>>
>>
>> ------------------------------------------------------------------------
>> *From:* [EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>
>> [mailto:[EMAIL PROTECTED]
>> <mailto:[EMAIL PROTECTED]>] *On Behalf
>> Of *Vincent Bourdier
>> *Sent:* Friday, October 03, 2008 7:37 AM
>> *To:* osg
>> *Subject:* [osg-users] Change color of a imported node
>>
>> Hi all,
>>
>> I'm currently looking at a way to allow me changing the color of
>> a geode, from a model 3D done under 3dsmax. This geode ha no
>> texture, and is composed by 18 primtiveset. No color array seems
>> to be in the datas, but it appear in the color applicated in
>> 3dsmax.
>>
>> I make this :
>>
>> osg::ref_ptr<osg::Geode> geode =
>> dynamic_cast<osg::Geode*>(node->asGroup()->getChild(0));
>> if(geode.valid()){
>> geode->setDataVariance(osg::Object::DYNAMIC);
>> osg::ref_ptr<osg::Geometry> geom =
>> geode->getDrawable(0)->asGeometry();
>> if(geom.valid()){
>> osg::ref_ptr<osg::Vec4Array> colors = new
>> osg::Vec4Array();
>> colors->push_back(planeList[i].color);
>> geom->setColorArray(colors.get());
>>
>> geom->setColorBinding(osg::Geometry::BIND_OVERALL);
>> }
>> }
>>
>>
>> Every thing is fine on the execution, but the geode still appear
>> with the loaded color.
>>
>> Any Idea of How to change the color ?
>> Thanks.
>>
>> Regards,
>>
>> Vincent.
>>
>>
>>
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>>
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>>
>>
>>
>>
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