Cocoa 更改SCNRender'；s的观点
我从一个场景中创建了一个具有特定视角的场景渲染器。我使用SCNView使我的视角可见，当对象场景看起来像我想要的时，我在脱机openGLContext中渲染它以使其成为图像。这是相关的代码位：Cocoa 更改SCNRender'；s的观点,cocoa,3d,scenekit,Cocoa,3d,Scenekit,我从一个场景中创建了一个具有特定视角的场景渲染器。我使用SCNView使我的视角可见，当对象场景看起来像我想要的时，我在脱机openGLContext中渲染它以使其成为图像。这是相关的代码位： SCNRenderer *lRenderer = [SCNRenderer rendererWithContext:openGLContext.CGLContextObj options: nil]; lRenderer.scene = self.sceneView.scene; lRenderer.po
SCNRenderer *lRenderer = [SCNRenderer rendererWithContext:openGLContext.CGLContextObj options: nil];
lRenderer.scene = self.sceneView.scene;
lRenderer.pointOfView = [self.sceneView.pointOfView clone];
[ lRenderer render ];
lRenderer.pointOfView.rotation = SCNVector4Make(1,1,1,M_PI_2);
[lRenderer render]我在lRenderer.pointOfView上更改的任何属性似乎都无关紧要。但是，如果我省略行
lRenderer.pointOfView=[self.sceneView.pointOfView clone]SCNNode *anotherPointOfView = [self.sceneView.pointOfView clone]; //clone
[[self.sceneView.pointOfView parentNode] addChildNode:anotherPointOfView]; //add to the scene (here at the same hierarchy level as the original point of view)
lRenderer.pointOfView = anotherPointOfView; //set the new point of view as the pov of the offscreen renderer
这里唯一看起来可疑的是，你的“克隆”视角不是场景的一部分。因此，我会尝试：
SCNNode *anotherPointOfView = [self.sceneView.pointOfView clone]; //clone
[[self.sceneView.pointOfView parentNode] addChildNode:anotherPointOfView]; //add to the scene (here at the same hierarchy level as the original point of view)
lRenderer.pointOfView = anotherPointOfView; //set the new point of view as the pov of the offscreen renderer
你可能是指
[lRenderer.scene.rootNode addChildNode:lRenderer.pointOfView][lRenderer.scene.rootNode addChildNode:lRenderer.pointOfView]