在osg的图形上贴一张纹理图片

哈哈哈,继今天早上完成的成果,又接着进行了修改完善。

先上图:

(在球上贴路费的照片都贴胖了...)

接着贴代码了

继续上篇的代码中填上一个createTexture2DState函数:

 1 osg::ref_ptr<osg::StateSet> createTexture2DState(osg::ref_ptr<osg::Image>image)
 2 {
 3     //创建状态集对象
 4     osg::ref_ptr<osg::StateSet>stateset = new osg::StateSet();
 5     //创建二维纹理对象
 6     osg::ref_ptr<osg::Texture2D>texture = new osg::Texture2D();
 7     texture->setDataVariance(osg::Object::DYNAMIC);
 8     //设置贴图
 9     texture->setImage(image.get());
10     texture->setFilter(osg:: Texture::MIN_FILTER, osg::Texture::LINEAR_MIPMAP_LINEAR);
11     texture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::LINEAR);
12     texture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
13     texture->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
14 
15     stateset->setTextureAttributeAndModes(0, texture.get(), osg::StateAttribute::ON);
16     return stateset.get();
17 }

main函数是这样的:

 1 int main(int argc, char **argv)
 2 {
 3     QApplication app(argc, argv);
 4     osg::Camera* camera = createCamera(50, 50, 640, 480);
 5     osg::ref_ptr<osg::Image>image = osgDB::readImageFile("Images/timg.jpg");
 6     osg::ref_ptr<osg::StateSet>stateset = new osg::StateSet();
 7     stateset = createTexture2DState(image.get());
 8     osg::Group * scene = new osg::Group();
 9     scene->setStateSet(stateset.get());
10     scene->addChild(createShape().get());
11     ViewerWidget* widget = new ViewerWidget(camera, scene);
12     widget->setGeometry(100, 100, 800, 600);
13     widget->show();
14     return app.exec();
15 }

 

剩下的不用改就ok啦!

附:关于图片的路径我的路径是(D:\osg3.4.0\data\Images);

按照自己的data文件夹设置就可以啦!

posted @ 2018-03-09 15:08  masking_timeflows  阅读(1308)  评论(0编辑  收藏  举报