Question

我正在玩场景套件。

我对建模知之甚少，但我创建了一个没有材料或纹理的非常基本的Sketchup模型。

我从番茄酱中导出模型并将其导入场景。

当我将相机向模型的一端移动时，后部消失，反之亦然。当相机向前旋转时，后部会变成黑色阴影。

这是什么原因？

照明？这是场景的代码。它是一个基本的Xcode游戏项目

// create a new scene
SCNScene *scene = [SCNScene sceneNamed:@"ship_transport.dae"];

// create and add a camera to the scene
SCNNode *cameraNode = [SCNNode node];
cameraNode.camera = [SCNCamera camera];
[scene.rootNode addChildNode:cameraNode];

// place the camera
cameraNode.position = SCNVector3Make(0, 0, 100);

// create and add an ambient light to the scene
SCNNode *ambientLightNode = [SCNNode node];
ambientLightNode.light = [SCNLight light];
ambientLightNode.light.type = SCNLightTypeAmbient
ambientLightNode.light.color = [UIColor whiteColor];
[scene.rootNode addChildNode:ambientLightNode];


// retrieve the ship node
SCNNode *ship = [scene.rootNode childNodeWithName:@"ship" recursively:YES];
ship.geometry.firstMaterial.diffuse.contents = [UIColor redColor];
ship.geometry.firstMaterial.specular.contents = [UIColor whiteColor];
SCNVector3 vector = SCNVector3Make(.1, .1, .1);
[ship setScale:vector];
//[scene.rootNode addChildNode:lightNode];

// animate the 3d object
[ship runAction:[SCNAction repeatActionForever:[SCNAction rotateByX:0 y:0 z:0 duration:1]]];

// retrieve the SCNView
SCNView *scnView = (SCNView *)self.view;
scnView.autoenablesDefaultLighting = true;

// set the scene to the view
scnView.scene = scene;

// allows the user to manipulate the camera
scnView.allowsCameraControl = YES;

// show statistics such as fps and timing information
scnView.showsStatistics = YES;

// configure the view
scnView.backgroundColor = [UIColor darkGrayColor];

Answer 1

尝试在相机上设置zFar属性。尝试更改的其他相关属性是xFov和yFov。

Sketchup中的scenekit模型消失了

1 个答案: