2012

Table Of Contents
not included, its location will determine the appearance of the sky
hemisphere. If the Intensity is left at 0, Presenter will calculate an
accurate intensity for you based on the suns position.
Goniometric lights can emit widely varying amounts of light energy in
different directions. One goniometric source could behave exactly like a
point light, another could behave exactly like a spot light, and a third
could look nothing like either of those. A goniometric light gets its intensity
distribution function (how much light goes in any one direction) from an
industry-standard file. Presenter supports CIE, IES, CIB, and LDT files.
NOTE A complete reference manual for all light types is included with the
Autodesk Navisworks API (see \API\COM\documentation\shaders.chm). The
Autodesk Navisworks API is included with Autodesk Navisworks Simulate 2012;
its an optional feature in the installer, and is installed by default into the API
subfolder in the Autodesk Navisworks installation folder.
Each light type has its own parameters, and the editor for a Point Light is
shown here:
570 | Chapter 13 Create Photorealistic Visualizations