Shadow mapping

Holography

Real-time rendering

Augmented reality

Computer graphics (images)

Global illumination

Computer science

Shadow (psychology)

Rendering (computer graphics)

Physics

Psychology

Optics

Psychotherapist

Focus (optics)

Artificial intelligence

Shader

Computer vision

Applied Sciences

In this paper, we present a solution for the photorealistic ambient light render of holograms into dynamic real scenes, in augmented reality applications. Based on Microsoft HoloLens, we achieved this result with an Image Base Lighting (IBL) approach. The real-time image capturing that has been designed is able to automatically locate and position directional lights providing the right illumination to the holograms. We also implemented a negative “shadow drawing” shader that contributes to the final photorealistic and immersive effect of holograms in real life. The main focus of this research was to achieve a superior photorealism through the combination of real-time lights placement and negative “shadow drawing” shader. The solution was evaluated in various Augmented Reality case studies, from classical ones (using Vuforia Toolkit) to innovative applications (using HoloLens).

Real Time Shadow Mapping for Augmented Reality Photorealistic Rendering