@article{yan2015fast, title={Fast 4D Sheared Filtering for Interactive Rendering of Distribution Effects}, author={Yan, Ling-Qi and Mehta, Soham Uday and Ramamoorthi, Ravi and Durand, Fredo}, journal={ACM Transactions on Graphics}, volume={35}, number={1}, pages={7}, year={2015}, publisher={ACM} }