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getVertexIndices()ΪʲôһֱΪ¿Õ

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·¢±íÓÚ 2009-4-14 22:37:28 | ÏÔʾȫ²¿Â¥²ã |ÔĶÁģʽ
±¾ÈËÏ룬ͨ¹ý¼Ì³Ðosg::NodeVisitor£¬À´»ñµÃÎļþÈç.osg¸ñʽÖÐËùÓж¥µãµÄ×ø±ê£¬¶¥µãË÷ÒýµÈµÈ£¬µ«ÊÇʹÓÃgetVertexIndices(),Õâ¸öº¯Êý»ñµÃ¶¥µãË÷Òýһֱʧ°Ü£¬Í¨¹ý²é¿´osg::GeometryÀàÐ͵ÄÁÙʱ±äÁ¿£¬·¢ÏÖÆäÖÐÓж¥µãµÄÐÅϢȴûÓж¥µãË÷ÒýµÄÐÅÏ¢£¬ºÜÆæ¹Ö¡£ÓÐûÓÐÈËÓöµ½¹ýÀàËƵÄÎÊÌâÄØ£¬Çë¸ßÊÖ°ïæ½â¾öһϡ£

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·¢±íÓÚ 2009-4-14 22:56:07 | ÏÔʾȫ²¿Â¥²ã
getVertexIndicesÖ»Äܹ»»ñÈ¡setVertexIndicesÉèÖõÄÐÅÏ¢£¬¶øÊÂʵÉÏÕâ¸öº¯ÊýÒѾ­»ù±¾ÆúÓÃÁË£¬Ö»ÊÇÓÃÀ´±£³ÖºÍÔçÆÚ°æ±¾µÄ¼æÈÝ£»ÎÒÃÇͨ³£¶¼»áʹÓÃaddPrimitiveSetÌí¼ÓÒ»¸öͼԪÐòÁУ¨ÀýÈçDrawElementsUInt£©²¢ÔÚÆäÖÐÉèÖö¥µãµÄË÷ÒýÊý¾Ý£¬Òò´ËҪȡµÃ¶¥µãË÷ÒýµÄ»°£¬Ó¦µ±Ê¹ÓÃgetPrimitiveSet²¢¸ù¾ÝËù»ñȡͼԪÐòÁеÄÀàÐÍÌáÈ¡ÏàÓ¦ÐÅÏ¢

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 Â¥Ö÷| ·¢±íÓÚ 2009-4-14 22:59:50 | ÏÔʾȫ²¿Â¥²ã
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class A:public osg::NodeVisitor
{
  A()sg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN)
{
   .......
}

void apply( osg::Geode& geode )
{
  for( unsigned int i=0; i < geode.getNumDrawables(); ++i )
{
//¾ÍÊÇÔÚÏÂÃæµÄ´úÂ봦һֱΪ¿Õ£¬¼´Ö¸Õëverts_index ==NULL
   osg::ShortArray* verts_index = dynamic_cast<osg::ShortArray*>(geom->getVertexIndices());
}

};

void main()
{
osg::Node* node = osgDB::readNodeFile("part1.3ds");
A a;
node->accept(a);
}
}

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 Â¥Ö÷| ·¢±íÓÚ 2009-4-14 23:00:43 | ÏÔʾȫ²¿Â¥²ã

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