3D GRAPHIC ENGINE WITH VISUAL ASSISTANCE FOR COLOR BLINDNESS

Abstract

This work presents the development of a 3D graphics engine designed to enhance accessibility for users with color vision deficiencies, implemented without relying on external graphics APIs. The approach integrates concepts from computer graphics, visual perception, and accessibility, focusing on color transformation filters for protanopia, deuteranopia, and tritanopia applied directly within the rendering pipeline. Using ray tracing and Phong lighting, the system operates entirely on the CPU, providing full control over the rendering process. Performance tests showed an average computational overhead of less than 10%, confirming feasibility even on consumer-grade hardware. The effectiveness of the implemented filters was evaluated through comparisons with existing accessibility features in commercial engines such as Unity and Unreal Engine 5, demonstrating qualitatively satisfactory results. This research contributes a replicable framework for embedding visual accessibility into educational and professional rendering engines, laying the groundwork for future enhancements using GPU acceleration and advanced post-processing techniques.