ios - SceneKit 和 ARKit – 柔和阴影或模糊阴影

Question

我已经在 ARKit 中设置了阴影，但结果并不令人满意，我们需要与 safari 中的快速查看相同的阴影。请帮助我如何设置它。我们附上了两张图片。

代码

var light = SCNLight()
var lightNode = SCNNode()
light.castsShadow = true
light.automaticallyAdjustsShadowProjection = true
light.maximumShadowDistance = 20.0
light.orthographicScale = 1
light.type = .directional
light.shadowMapSize = CGSize(width: 2048, height: 2048)
light.shadowMode = .deferred
light.shadowSampleCount = 128
light.shadowRadius = 3
light.shadowBias = 32
light.zNear = 1
light.zFar = 1000
light.shadowColor = UIColor.black.withAlphaComponent(0.36)
lightNode.light = light2
lightNode.eulerAngles = SCNVector3(-Float.pi / 2, 0, 0)
self.sceneView.scene.rootNode.addChildNode(lightNode)

Answer 1

提供阴影偏移并增加阴影半径。使用这些值来获得所需的输出。

light.shadowOffset = CGSize(width: 1, height: 1) //controls spread
light.shadowOpacity = 0.5  // controls opacity
light.shadowRadius = 5.0 // controls blur level