Lentil v1.9.1.2022.01.23 for Arnold (WIN/MAC/LNX)

Lentil is an advanced camera toolkit for the Arnold renderer. It is a set of shaders that extends creative control and physical correctness, while significantly reducing the time (in tough cases up to 30x) needed to render bokeh through bidirectional sampling of camera rays.

Bidirectional
By decoupling camera rays from primary rays, our bidirectional adaptive sampling of bokeh makes rendering depth of field in-camera practical.

Physical vs. Speed
As often is the case in CG, there's a choice between speed (thin-lens) and physical correctness (polynomial optics).

Creative control
The thinlens model features additional creative control over the appearance of bokeh.

Thin-Lens
We extended the classical thin-lens model with additional creative control, while also significantly improving the performance.

Polynomial Optics
Polynomial optics is the state-of-the-art in fast, physically plausible lens simulation. This camera model uses real lens data, but precalculates it in a way that all information about the lens is discarded. This means there is no performance difference between a lens with 5 or 25 optical elements.

Requirements
- Lentil is compiled against Arnold 7.0.0.0. Any earlier version will not work.

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