2008

Reflective caustics added to swimming pool
To calculate caustics, the mental ray renderer uses the
photon map technique
on page 7894 . (Ray tracing cant generate accurate caustics, and they arent
provided by the default scanline renderer.)
You enable caustics on the Render Scene dialog > Indirect Illumination panel
>
Caustics And Global Illumination rollout on page 6099 . In addition, you
must designate:
Which light objects can create caustics.
Which renderable objects can generate caustics.
Which renderable objects can receive caustics.
The settings for generating and receiving caustics are on the Object Properties
dialog >
mental ray Panel on page 262 .
6068 | Chapter 18 Rendering