Caustics are light patterns that are created when light has
been refracted by one or more surfaces. Only mobiles can produce caustics
To render caustics, follow these steps:
1. Create a Material with the Generate Caustic checked beforehand, set a proper Refraction Index for it: . You must set it's Alpha component to a diffuse color less than 255, to create transparency.
2. Assign this Material to
3. Create a light and check it's Generate Caustic property:. The Detail option controls the
lights emission-density for caustics.
4. Press F8 to render the caustics.
You can render caustics for specific mobiles or lights by
selecting them before rendering.
Refraction Indexes of familiar materials:
|Heavy Flint Glass||1.65000|
|Sugar Solution (80%)||1.49000|
|Sugar Solution (30%)||1.38000|