系统自带的3D模型控件

最新推荐文章于 2025-04-19 11:53:58 发布

小飞work

最新推荐文章于 2025-04-19 11:53:58 发布

阅读量1.8k

点赞数

分类专栏： iOS技术组文章标签： AR scnnode 3d模型

本文链接：https://blog.youkuaiyun.com/niceboydo/article/details/79152005

版权

iOS技术组专栏收录该内容

61 篇文章

订阅专栏

先自定义SCNView和SCNScene用来作为模型展示的view和场景。

@property (nonatomic,strong) SCNView *QFSceneView;
@property (nonatomic,strong) SCNScene *QFSenePlace;
//声明3D场景
    self.QFSceneView = [[SCNView alloc]init];
    _QFSceneView.allowsCameraControl = YES;//用户可以控制摄像机
    _QFSceneView.showsStatistics = YES;//控制下方的统计栏是否显示
    [self.view addSubview:_QFSceneView];
    _QFSceneView.sd_layout.spaceToSuperView(UIEdgeInsetsMake(NavBarHeight, 0, 0, 0));
    //声明场景中的模型对象
    self.QFSenePlace = [SCNScene scene];
    _QFSceneView.scene = _QFSenePlace;
    _QFSceneView.autoenablesDefaultLighting = true;

将系统的3D模型控件放到根节点处展示出来

//构建3D模型
        self.createNode = [[CreateTreeNode alloc]init];
SCNNode *_model = [_createNode createTreeModel];
        [_QFSenePlace.rootNode addChildNode:model];

下面开始介绍绘制的模型结构
1.绘制方块

SCNNode *present = [SCNNode nodeWithGeometry:[SCNBox boxWithWidth:1 height:1 length:1 chamferRadius:0]];
    present.geometry.firstMaterial.diffuse.contents = QFBlueColor;
    present.position = SCNVector3Make(2, -2, 2);
    present.name = @"树下面的方块";
    [_model addChildNode:present];

2.绘制SCNPyramid

SCNNode *pyramidNode = [SCNNode nodeWithGeometry:[SCNPyramid pyramidWithWidth:2 height:2 length:2]];
    pyramidNode.geometry.firstMaterial.diffuse.contents = QFYellowColor;
    pyramidNode.position = SCNVector3Make(-2, -2, -2);
    pyramidNode.name = @"三角锥";
    [_model addChildNode:pyramidNode];

3.绘制SCNSphere

SCNNode *sphereNode = [SCNNode nodeWithGeometry:[SCNSphere sphereWithRadius:1]];
    sphereNode.geometry.firstMaterial.diffuse.contents = QFRedColor;
    sphereNode.position = SCNVector3Make(-2, -1, 2);
    sphereNode.name = @"球体";
    [_model addChildNode:sphereNode];

4.绘制SCNCone

SCNNode *coneNode = [SCNNode nodeWithGeometry:[SCNCone coneWithTopRadius:0.5 bottomRadius:1 height:2]];
    coneNode.geometry.firstMaterial.diffuse.contents = QFBlackColor;
    coneNode.position = SCNVector3Make(2, -1, -2);
    coneNode.name = @"锥柱体";
    [_model addChildNode:coneNode];

5.绘制SCNTube

SCNNode *tubeNode = [SCNNode nodeWithGeometry:[SCNTube tubeWithInnerRadius:0.5 outerRadius:1 height:2]];
    tubeNode.geometry.firstMaterial.diffuse.contents = QFGrayColor;
    tubeNode.position = SCNVector3Make(3, 3, 3);
    tubeNode.name = @"环柱体";
    [_model addChildNode:tubeNode];

6.绘制SCNCapsule

SCNNode *capsuleNode = [SCNNode nodeWithGeometry:[SCNCapsule capsuleWithCapRadius:1 height:2]];
    capsuleNode.geometry.firstMaterial.diffuse.contents = QFDarkGrayColor;
    capsuleNode.position = SCNVector3Make(3, 3, -3);
    capsuleNode.name = @"跟球看着一样";
    [_model addChildNode:capsuleNode];

7.绘制SCNTorus

SCNNode *torusNode = [SCNNode nodeWithGeometry:[SCNTorus torusWithRingRadius:1 pipeRadius:0.5]];
    torusNode.geometry.firstMaterial.diffuse.contents = QFLightGrayColor;
    torusNode.position = SCNVector3Make(-3, 3, 3);
    torusNode.name = @"游泳圈";
    [_model addChildNode:torusNode];

8.绘制SCNText

SCNText *scnText = [SCNText textWithString:@"自构3D模型" extrusionDepth:0.5];
    scnText.font = [UIFont systemFontOfSize:2];
    SCNNode *textNode = [SCNNode nodeWithGeometry:scnText];
    textNode.geometry.firstMaterial.diffuse.contents = QFOrangeColor;
    textNode.position = SCNVector3Make(-5, 8, -5);
    textNode.name = @"3D文字";
    [_model addChildNode:textNode];