如何在ARKit中的SCNPlane上呈现具有透明背景的UIView? [英] How to render a UIView with transparent background on an SCNPlane in ARKit?

问题描述

我的UIView具有UIColor.clear背景.我正在从情节提要中实例化View Controller.

My UIView has a UIColor.clear background. I am instantiating the View Controller from a storyboard.

当我将SCNPlane几何的漫反射内容设置为视图控制器的视图时，透明"背景在平面上显示为纯白色. 这是我的设置方式

When I set SCNPlane geometry's diffuse contents to the viewcontroller's view, the Transparent background appears solid white on the plane. here is how I set it

let material = SCNMaterial()
material.diffuse.contents = viewController.view
planeGeometry.materials = [material]

我可以看到视图，只是背景不是透明的.

I can see the view, just the background is not transparent.

我在其他Stack溢出帖子上看到了建议，他们在这里建议尝试

I saw suggestion on other Stack overflow posts where they suggested to try this

material.diffuse.contents = viewController.view.layer

这有效，并且飞机渲染了透明胶片，但是视图不再是交互式的.

This works and the the plane renders the transparencies, but then the view is not interactive anymore.

在平面上渲染视图时，是否可以保留交互性和透明度?

Is there a way that I can retain the interactivity and the transparency when the view is rendered on the plane?

推荐答案

尝试设置视图的

Try setting your view's isOpaque property to false:

let material = SCNMaterial()
viewController.view.isOpaque = false
material.diffuse.contents = viewController.view
planeGeometry.materials = [material]

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