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swiftios9scenekit

How can i translate my camera node position after rotation in required direction in SceneKit?

I am developing a 3D application using SceneKit in iOS, I need to translate my camera position after rotation. Can anybody help me to do this task?

Solution

  • I usually do this by stringing together a few SCNMatrix4 operations.

    let cameraNode = SCNNode()
cameraNode.camera = SCNCamera()

//start off with an identity matrix
var cameraTransform = SCMMatrix4Identity

//rotate by 90degrees about Z axis
cameraTransform = SCNMatrix4Rotate(cameraTransform, Float(M_PI_2), 0, 0, 1)

//translate by 2 units in x direction
cameraTransform = SCNMatrix4Translate(cameraTransform, 2, 0, 0)

//set the camera's transform
cameraNode.transform = cameraTransform