Not really a daily build feature, since Corona 10 is already released, but we didn't have a dedicated playground thread for this, and we are super curious about your results, so here it is!
If you are rendering a scene where highlights are blurred due to depth of field (distant city lights, interior lighting, reflective/refractive objects), you can enable the new DOF Highlights Solver to get faster rendering.
You will find the checkbox in
Render Setup > Performance > Performance settings. You don't have to change the Budget and Reprojection values as the defaults work well (but you are welcome to test them if you wish!).
You also need a camera with depth of field enabled.
Example 1 - Same render time - Click to open interactive comparison
Example 2 -Same render time - Click to open interactive comparison
You can learn more about the new Highlights Solver and DOF in general at:
-
Corona Help Center-
Corona Documentation