ブログ用に書いたやつ

BlendShapeCharacter.swift

func renderer(_ renderer: SCNSceneRenderer, nodeFor anchor: ARAnchor) -> SCNNode? {
        guard anchor is ARFaceAnchor else { return nil }

//        contentNode = SCNReferenceNode(named: "robotHead")
        contentNode = SCNReferenceNode(named: "male1")
//        originalJawY = jawNode.position.y
        meshNode = contentNode?.childNode(withName: "Plane", recursively: true)
        return contentNode
    }
    
    /// - Tag: BlendShapeAnimation
    func renderer(_ renderer: SCNSceneRenderer, didUpdate node: SCNNode, for anchor: ARAnchor) {
        guard let faceAnchor = anchor as? ARFaceAnchor
            else { return }
        
        let blendShapes = faceAnchor.blendShapes
        guard let eyeBlinkLeft = blendShapes[.eyeBlinkLeft] as? CGFloat,
            let eyeLookDownLeft = blendShapes[.eyeLookDownLeft] as? CGFloat,
            let eyeLookInLeft = blendShapes[.eyeLookInLeft] as? CGFloat,
            let eyeLookOutLeft = blendShapes[.eyeLookOutLeft] as? CGFloat,
            let eyeLookUpLeft = blendShapes[.eyeLookUpLeft] as? CGFloat,
            let eyeSquintLeft = blendShapes[.eyeSquintLeft] as? CGFloat,
            let eyeWideLeft = blendShapes[.eyeWideLeft] as? CGFloat,
            let eyeBlinkRight = blendShapes[.eyeBlinkRight] as? CGFloat,
            let eyeLookDownRight = blendShapes[.eyeLookDownRight] as? CGFloat,
            let eyeLookInRight = blendShapes[.eyeLookInRight] as? CGFloat,
            let eyeLookOutRight = blendShapes[.eyeLookOutRight] as? CGFloat,
            let eyeLookUpRight = blendShapes[.eyeLookUpRight] as? CGFloat,
            let eyeSquintRight = blendShapes[.eyeSquintRight] as? CGFloat,
            let eyeWideRight = blendShapes[.eyeWideRight] as? CGFloat,
            // 中略
            else { return }
//        eyeLeftNode.scale.z = 1 - eyeBlinkLeft
//        eyeRightNode.scale.z = 1 - eyeBlinkRight
//        jawNode.position.y = originalJawY - jawHeight * jawOpen
        meshNode?.morpher?.setWeight(eyeBlinkLeft, forTargetAt: 0)
        meshNode?.morpher?.setWeight(eyeLookDownLeft, forTargetAt: 1)
        meshNode?.morpher?.setWeight(eyeLookInLeft, forTargetAt: 2)
        meshNode?.morpher?.setWeight(eyeLookOutLeft, forTargetAt: 3)
        meshNode?.morpher?.setWeight(eyeLookUpLeft, forTargetAt: 4)
        meshNode?.morpher?.setWeight(eyeSquintLeft, forTargetAt: 5)
        meshNode?.morpher?.setWeight(eyeWideLeft, forTargetAt: 6)
        meshNode?.morpher?.setWeight(eyeBlinkRight, forTargetAt: 7)
        meshNode?.morpher?.setWeight(eyeLookDownRight, forTargetAt: 8)
        meshNode?.morpher?.setWeight(eyeLookInRight, forTargetAt: 9)
        meshNode?.morpher?.setWeight(eyeLookOutRight, forTargetAt: 10)
        meshNode?.morpher?.setWeight(eyeLookUpRight, forTargetAt: 11)
        meshNode?.morpher?.setWeight(eyeSquintRight, forTargetAt: 12)
        meshNode?.morpher?.setWeight(eyeWideRight, forTargetAt: 13)
        // 中略
    }