![]() ![]() ![]() In the project navigator, click on FruitCake.dae in art.scnassets and select baseNode in the scene graph. When we add our model to the scene, SceneKit places it at the position we’ve specified and centers it relatively to its pivot point. The point against which the model is rotated or positioned. In simple terms, the pivot point is the origin point of the model. This is where the importance of the pivot point comes into play. It looks like it’s placed a little bit underneath it. However, if you pan the camera down a bit and look closely, you will notice that the model is not exactly on the detected surface. The model is placed correctly on a flat surface. Well, the orientation is correct, the model is facing the right direction. Then we have to consider the position and orientation. Now we have the correct scale for our model. When downloading the model, make sure you have selected the Original format (obj).īaseNode. We will be using this model by Francesco Coldesina for the project. Many great photogrammetry models can be found online for free. ![]() The process involves taking pictures of the object from all angles and using software to convert it into a high-resolution 3D mesh. The most realistic 3D models are usually the ones created through a process called photogrammetry. Now let’s get started! Downloading and preparing the model Although it is not necessary to follow part one as the prepared model is included in the starter project, I still recommend you read through it to understand the process. Part one is about how to prepare a model compatible with Xcode while part two is the main part of the tutorial about using the model in Xcode. Make sure you have downloaded the starter project from this link. To follow along, Xcode 10 (or later) and an ARKit supported device running iOS 12 (or later) are required. ![]() This is an intermediate level tutorial and requires you to have a good understanding of Swift as well as some previous experience with ARKit and SceneKit. ![]()
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