ARKit, RealityKit and SceneKit frameworks use 4 x 4 Transformation Matrices to translate, rotate, scale and shear 3D objects (just like simd_float4x4 matrix type). Let’s see how these matrices look like. In 3D Graphics we often use a 4×4 Matrix with 16 useful elements. The Identity 4×4 Matrix is as following: Between those sixteen elements … Read more
Updated: October 08, 2022. TL;DR This post is not only about RealityKit, SceneKit & Metal, but also about related APIs and USD files. RealityKit 2.0 RealityKit (and RealityFoundation) is the youngest SDK in Apple family of rendering technologies. This high-level framework was released in 2019. RealityKit is made for AR / VR projects, has simplified … Read more
Updated: June 07, 2022. TL;DR ARAnchor ARAnchor is an invisible null-object that can hold a 3D model at anchor’s position in a virtual space. Think of ARAnchor just like it’s a transform node with local axis (you can translate, rotate and scale it) for your model. Every 3D model has a pivot point, right? So … Read more
Updated: June 09, 2022. usdzconvert command in Xcode 14, 13, 12, 11 In macOS Ventura, Monterey, Big Sur and Catalina USDZ converter has a rich set of commands and supports more input formats for conversion than previous version. But before using it you need to download USDZ Tools. And don’t forget to setup a global … Read more