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标题: ios - 创建与相机平行的垂直 SCNPlane [打印本页]

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作者: 菜鸟教程小白    时间: 2022-12-12 14:24
标题: ios - 创建与相机平行的垂直 SCNPlane

我想在用户点击相机正前方的屏幕时创建一个 SCNPlane，我可以创建平面但它不平行于相机

    guard let sceneView = sender.view as? ARSCNView else {return}
    guard let currentFrame = sceneView.session.currentFrame else {return}
    let camera = currentFrame.camera
    let transform = camera.transform
    var translationMatrix = matrix_identity_float4x4
    translationMatrix.columns.3.z = -0.1
    var modifiedMatrix = simd_mul(transform, translationMatrix)
    let plane = SCNNode(geometry: SCNPlane(width: 0.42, height: 0.63))
    plane.geometry?.firstMaterial?.diffuse.contents = UIColor.yellow
    plane.simdTransform = modifiedMatrix
    self.sceneView.scene.rootNode.addChildNode(sphere)

我如何定位平行于相机的平面？ 感谢您的帮助

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Best Answer-推荐答案

只需旋转你的飞机

    guard let sceneView = sender.view as? ARSCNView else {return}
    guard let currentFrame = sceneView.session.currentFrame else {return}
    let camera = currentFrame.camera
    let transform = SCNMatrix4(camera.transform)
    let translationMatrix = SCNMatrix4Rotate(
        SCNMatrix4MakeTranslation(0, 0, -0.1),
        Float.pi / 2,
        1, 0, 0)
    let modifiedMatrix = SCNMatrix4Mult(transform, translationMatrix)
    let plane = SCNNode(geometry: SCNPlane(width: 0.42, height: 0.63))
    plane.geometry?.firstMaterial?.diffuse.contents = UIColor.yellow
    plane.transform = modifiedMatrix
    self.sceneView.scene.rootNode.addChildNode(plane)

关于ios - 创建与相机平行的垂直 SCNPlane，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48097081/

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