[请教]HUD显示模型

tiantangtl

我想利用HUD显示三维模型在屏幕的一个指定位置，但是不是HUD的光照设置有问题？效果如下：

HUD的设置就是参照的osghud的例子，看图中左下角的圆柱体，失去了三维的立体效果，求高手指导。

Mooneast

应该是你的方向设置的有问题吧 楼主可以把代码发上来瞧瞧

tiantangtl

Mooneast 发表于 2013-4-3 17:01
应该是你的方向设置的有问题吧 楼主可以把代码发上来瞧瞧

1. osg::ref_ptr<osgViewer::Viewer> viewer=new osgViewer::Viewer;
   
2.         osg::ref_ptr<osg::Group> root=new osg::Group;
   
3.         osg::ref_ptr<osg::Node> cow=osgDB::readNodeFile("cow.osg");
   
4.         root->addChild(cow.get());
   
5.        
   
6.         osg::ref_ptr<osg::Camera> HUDCamera=new osg::Camera;
   
7.         HUDCamera=new osg::Camera;
   
8.         HUDCamera->setProjectionResizePolicy(osg::Camera::FIXED);
   
9.         HUDCamera->setProjectionMatrix(osg::Matrix::ortho2D(0.0,1280,0.0,1024));
   
10.         HUDCamera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
    
11.         HUDCamera->setClearMask(GL_DEPTH_BUFFER_BIT);
    
12.         HUDCamera->setRenderOrder(osg::Camera::POST_RENDER);
    
13. 
    
14.         osg::ref_ptr<osg::Switch> modelroot=new osg::Switch;
    
15. 
    
16.         osg::ref_ptr<osg::Geode> gnode=new osg::Geode;
    
17.         osg::ref_ptr<osg::Cylinder> cy=new osg::Cylinder;
    
18.         osg::ref_ptr<osg::ShapeDrawable> cysd=new osg::ShapeDrawable(cy.get());
    
19.         cysd->setColor(osg::Vec4(1.0,0.0,0.0,1.0));
    
20.         gnode->addDrawable(cysd.get());;
    
21. 
    
22.         osg::ref_ptr<osg::MatrixTransform> btn1=new osg::MatrixTransform;
    
23.         btn1->addChild(gnode.get());
    
24. 
    
25.         osg::Matrix btnTrans,btnRotate,btnScale;
    
26.         btnTrans.makeTranslate(100,100,-100);
    
27.         btnRotate=osg::Matrix::rotate(osg::inDegrees(45.0),osg::X_AXIS)*osg::Matrix::rotate(osg::inDegrees(45.0),osg::Z_AXIS);
    
28.         btnScale.makeScale(osg::Vec3(50.0,50.0,50.0));
    
29.         btn1->setMatrix(btnScale*btnRotate*btnTrans);
    
30.         modelroot->addChild(btn1.get());
    
31. 
    
32.         HUDCamera->addChild(modelroot.get());
    
33.         root->addChild(HUDCamera.get());
    
34. 
    
35.         viewer->addEventHandler(new osgViewer::WindowSizeHandler);
    
36.         viewer->setSceneData(root.get());
    
37.         viewer->realize();
    
38.         return viewer->run();

复制代码

liuzhiyu123

把光照关了