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- [classRigidSphere](https://youbing.gitbook.io/graphics/readme/labs-b-spring-2026/labb09_rigid/classrigidsphere.md)
- [T3 Create the Ray class (easy)](https://youbing.gitbook.io/graphics/readme/labs-b-spring-2026/lab-b01-ray-casting-and-visibility/t3-create-the-ray-class-easy.md)
- [T4 Sphere-Sphere Collision](https://youbing.gitbook.io/graphics/readme/labs-b-spring-2026/labb09_rigid/t4-sphere-sphere-collision.md)
- [T2 RigidSim::tick() MS1](https://youbing.gitbook.io/graphics/readme/labs-b-spring-2026/labb09_rigid/t2-rigidsim-tick-ms1.md)
- [T1 Add the Bone class](https://youbing.gitbook.io/graphics/readme/labs-b-spring-2026/labb06_anim/t1-add-the-bone-class.md)

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