Fixed minor bug where package would not run on Python 3.7
Added dispersive materials based on Sellmeier Coefficients.
Glassbase class for refractive materials.
show()function has additional keyword arguments for shading rays.
wavelength: Shades each ray based on the wavelength of the ray.
source: Shades each ray based on which source generated the ray.
calculate_source_ids()calculates and appends a source_id column to the results dataframe. source_id is the index of the source that generated the ray.
pyrayt.utilsmodule with convenience functions for lens design.
pincontext manager that preserves an object’s position.
Various minor changes to the