
If you want the caustics to show up just in the beauty pass, you must uncheck " Caustics only in caustics pass". By default, " Caustics only in caustics pass" is enabled, this means that you can render just the caustics to its own separate render pass and be composited later in a third-party software such as Photoshop for example. In the Corona render settings under the performance tab, ensure that you have ' E nabled' activated.

Caustics may render slower/differently when using render regions (this will be fixed).Īs mentioned, working with caustics is extremely easy to set up.To avoid flickering in animations, you will have to render a significant number of passes to ensure the solution has converged. The new caustics use a Markov Chain Monte Carlo algorithm, which means each frame in an animation (or even rendering the same frame twice) will have a different pattern in the noise.Only Corona Lights will produce caustics (standard Cinema 4D lights are not supported). Refractive caustics still require having caustics enabled in the material. There are, however, also currently some limitations:Ĭaustics inside volumes are still calculated the old way and are not accelerated by the new solver.

