Lightscape User Guide

12 Lighting Analysis

Analyzing Lighting Statistics

You can obtain statistical data such as averages, minimum and maximum values, and criteria ratings to evaluate luminance or illuminance for a specific surface or a point on a surface.

Information related to that point and the surface is displayed on the Statistics panel.

Displaying Light Energy Statistics

Display light energy statistics based on either luminance or illuminance values.

To show light energy values for a surface:

1.

Choose Light | Analysis.

The Lighting Analysis dialog appears.

2.

Click the Display tab.

3.

Select an item from the Quantity list.

4.

Click the Statistics tab.

5.

Click a point on a surface in the model.

The selected point appears on the surface and the surface is highlighted.

6.

To view information for a different point on a surface, click that point on the surface of the model.

Analyzing Light Energy Statistics

Each time you select a point on a surface of your model, statistical information about the point and the surface is displayed on the Statistics panel. The following information is available:

• Point

• Average

• Max and Min

• Avg Min, Max and Min, and Max Avg.

Point

Displays the luminance or illuminance value at a selected point on a surface. The X, Y, and Z coordinates of the point also appear in parenthesis.

Average

Displays the average value of the target quantity over the selected surface.

The average value is a simple way of characterizing the performance of a lighting system when the shape of the distribution of light over the surface is fairly simple.

Selected point on the surface in your model

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