Contributed to the mrdoob/three.js repository by implementing a core enhancement to normal map handling, focusing on the NormalMapNode component. Developed support for unpacking multiple normal map packing formats, introducing constants to manage different packing types and enabling more accurate material rendering across diverse asset pipelines. This work, carried out using JavaScript and leveraging expertise in 3D Graphics and Shader Programming, addressed cross-platform compatibility and reduced rendering artifacts. The changes were designed to align with the engine’s material system standards, laying a foundation for future feature expansion and facilitating broader testing and integration within the WebGL-based rendering pipeline.