Explore the fundamentals of virtual reality in this comprehensive 21-hour course. Delve into the historical perspective, hardware components, and software elements that make up VR systems. Learn about geometric modeling, transformations, and matrix algebra essential for creating 3D environments. Study the intricacies of light, optics, and human visual perception to understand how VR affects our senses. Examine tracking technologies, rendering techniques, and audio spatialization for immersive experiences. Investigate interface design, locomotion methods, and social interaction in virtual spaces. Gain practical knowledge on evaluating VR systems and addressing VR-specific challenges. By the end of the course, acquire a solid foundation in VR technology and its applications across various fields.