RENDERING LIGHT DISPERSION WITH A COMPOSITE SPECTRAL MODEL
Yinlong Sun, F. David Fracchia, Mark S. Drew · 2000
Light dispersion is an optical phenomenon wherein lights are decomposed into monochromatic components and become colored such as in crystal stones and diamonds. This paper proposes to render light dispersion with a ray tracer based on a composite spectral model. This model decomposes any spectrum into a smooth component and spikes, and offers a convenient vehicle for describing monochromatic lights occurring in light dispersion. Our ray tracer based on the composite model is very easy to implement and the synthesized images for light dispersion match closely their corresponding photographs.