https://xyn-1127.github.io/igd301-blog/tags/roll-a-ball/Recent content in Roll-a-Ball on Human-Computer Interaction for Mixed Reality BlogHugo -- 0.155.3en-usMon, 05 Jan 2026 00:00:00 +0000https://xyn-1127.github.io/igd301-blog/posts/lab4-roll-a-ball-in-vr/Mon, 05 Jan 2026 00:00:00 +0000https://xyn-1127.github.io/igd301-blog/posts/lab4-roll-a-ball-in-vr/<p>This Lab 4 focuses on migrating the Lab 3 Roll-a-ball project into a Quest (VR) environment, and implementing two fundamental (and most commonly used) selection techniques: <strong>Direct Selection (near-field grabbing)</strong> and <strong>Raycasting (far-field ray selection)</strong>.<br> In the end, I built it as a small “tabletop game”: Roll-a-ball is scaled down into a tray/board placed on a table. I can grab the whole board with the controllers, move it around, and drop it. I can also use a right-hand ray to select and grab the board from a distance, while still letting the ball roll inside, collect pickups, and keep the UI readable in VR.</p>https://xyn-1127.github.io/igd301-blog/posts/lab3-roll-a-ball/Wed, 17 Dec 2025 00:00:00 +0000https://xyn-1127.github.io/igd301-blog/posts/lab3-roll-a-ball/<p>This Lab 3 follows the Unity Learn Roll-a-ball workflow (Unity 6.3) and delivers a runnable minimal rolling-ball scene: I set up the ground and player sphere in a URP 3D project, configured lighting and materials, and implemented physics-based movement using a Rigidbody together with the new Input System (Player Input).<br> On top of the tutorial baseline, I added surrounding walls to constrain the play area, and adjusted the camera angle and distance to make the gameplay view more stable and readable.</p>