2008

Near and Far When In Focus Limits is the active method, these values set
the range, in 3ds Max units, within which objects are in focus. Objects lose
focus when they are closer than the Near value or farther than the Far value.
These values are approximate, because the transition from in-focus to
out-of-focus is gradual, not abrupt.
The Near and Far values are related to each other and to the value of Focus
Plane. Changing the value of Near changes Far as well, and vice versa.
Specifically, if
H = Hyperfocal distance, the Focus Plane value at which the Far limit becomes
infinity
D = The Focus Plane distance
Dn = The Near distance
Df = The Far distance
Then
Dn = HD / (H + D)
Df = HD / (H − D)
Caustics and Global Illumination Rollout (mental
ray Renderer)
Rendering menu > Render > Render Scene dialog > Indirect Illumination panel
> Caustics and Global Illumination rollout
Main toolbar > Render Scene > Render Scene dialog > Indirect Illumination
panel > Caustics and Global Illumination rollout
Note: The Indirect Illumination panel appears only when the mental ray
renderer is the active renderer.
The controls in this rollout are for the effects of
caustics on page 6066 and
global illumination on page 6072 .
6096 | Chapter 18 Rendering