@yuanzhec Effects like diffraction/iridescence are due to the wave properties of light. So, Photo-realistically reproducing these phenomena might require solving a wave equation, e.g., to model the way light waves interfere at micro-/nano-scales.
aloo
Gravitational lensing, as shown in the bottom right figure, can be modeled for ray optics using a medium with a continuously varying refractive index. https://arxiv.org/pdf/0711.0633.pdf
How can we resolve diffraction/iridescence?
@yuanzhec Effects like diffraction/iridescence are due to the wave properties of light. So, Photo-realistically reproducing these phenomena might require solving a wave equation, e.g., to model the way light waves interfere at micro-/nano-scales.
Gravitational lensing, as shown in the bottom right figure, can be modeled for ray optics using a medium with a continuously varying refractive index. https://arxiv.org/pdf/0711.0633.pdf