
Then, you will fine Affect Shadows in the Refraction Section. For refractive materials (Glass,water.etc) turn off the "Affect Shadows" option (Advanced material settings must be used to see this parameter).It is important to note that the photons emitted from Sunlight are centered around the center of the project (0,0,0 coordinate or the point where the X, Y and Z axes intersect).Įnsure your caustics are set there (you can change the scene origin using SketchUp's "Axes" tool). A value of 800-1000 still gets the job done but higher values will increase the quality. If you have Sun light in the scene, use a higher values for Photon Emit Radius.

dimensions of all objects reflect actual size), for multiplier and Radius to take effect.


My colleague, Muhammed_Hamed, has already replied by email to your question.
