## 2021/06/16, v2:
- Added missing dot product signs in multiple equations in the manuscript and appendix.
- Added a sentence to specify the framerate used for the simulated scenes.
- Added missing density factors in line 2 and 6 in algorithm B.1 in the appendix.

## 2019/10/23:
- Added rendering acknowledgments to appendix.

## 2019/06/18:
- Added appendix explaining the computation of the diagonal element.

## 2019/01/21, v1:
- Author's version of the manuscript that was submitted to Transactions on Graphics.