2008
Reflective caustics added to swimming pool
To calculate caustics, the mental ray renderer uses the
photon map technique
on page 7894 . (Ray tracing can’t generate accurate caustics, and they aren’t
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