Worked on the mrdoob/three.js repository to enhance rendering fidelity and stability in the Cascaded Shadow Maps pipeline by addressing a core bug affecting point light shadow accuracy. Focused on shader development and computer graphics, the work involved fixing a missing shadowIntensity argument in the getPointShadow() function using JavaScript, which restored correct shadow rendering and reduced visual artifacts across scenes. This targeted bug fix improved code quality and maintainability, ensuring more consistent results in three.js demos and applications. The contribution was delivered as a clear, traceable commit, aligning with open issues and supporting overall code health within the project.