we need to know whether apple is committed to make MacCatalyst UIDocumentInteractionController functionally equivalent to its UIKit counterpart. since this issue has been open for 2 years or so, we have considered writing our own replacement for UIDocumentInteractionController but we have scrapped that idea after realizing that NSWorkspace is unavailable in MacCatalyst. i will start a new post addressing our fundamental dilemma: we do not understand the technological interrelations AppKit, UIKit, MacCatalyst, SwiftUI, and recently CoreUI

shader debugging of intersection functions would be greatly appreciated. consider intersecting geometric primitives like (partial) sphere, cone, torus... ...or raytracing booleans.