2010

Table Of Contents
Lesson 5: Caustics
Introduction
Caustics are the light effects and specular patterns that are cast on surfaces as
a result of focused light reflecting off highly reflective surfaces or refracting
through translucent surfaces.
The light patterns that occur on the bottom of a swimming pool on a sunny
day, or the bright areas that occur in the shadow of a glass object as light
shines through it are examples of caustics.
The Caustic feature in the mental ray
®
for Maya
®
renderer simulates caustic
effects in your Maya scenes. Caustics are similar to Global Illumination in that
they are an indirect illumination effect.
In this lesson you learn how to:
Create the shadow effect that results from the refraction and concentration
of light through a transparent object, using the Caustic feature provided
in the mental ray for Maya renderer.
Adjust refraction level limits in order to achieve desired refractive effects
with transparent objects.
Lesson 5: Caustics | 519