Page 1129 - Chief Architect Reference Manual

Ray Trace Options

scene. When unchecked, ray traces have 2 Check Enable Focal Blur to enable the
low quality lighting effects but generate F-Number setting below and set the
more quickly. Use Photon Mapping amount of focal blur that occurs outside the
should be checked for all interior scenes camera’s focal range.
and unchecked for most exterior scenes. • Specify the F-Number value, which
defines the camera focal blur and is the
In order for Photon Mapping to func- like the f-stop in photography. Decrease
tion, at least two different objects must this value for more focal blur or increase
be present in the model. If there are too few it for less blur.
surfaces in the model, a ray trace with Photon
Mapping cannot run. Focal blur cannot be produced if the
camera’s focal point is located within the
• Check Compute Caustics, to use caustic Clip Surfaces Within distance set in its
photons, which are photons used in areas specification dialog. See “Camera Panel” on
of focused light. Caustic photons are page 1076.
helpful when modeling certain effects
such as light shining through glass.
Image Properties Panel

The settings on the IMAGE PROPERTIES panel has been started, these settings can be
allow you to customize the properties of modified. See “Adjusting Ray Trace
colors in Ray Trace views. Once a Ray Trace Properties and Effects” on page 1135.

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