Creating a Light Field Source
A Light Field Source reads the optical light field file *.olf generated by the Light Field sensor to emit light.
Note: The Light Field feature is in BETA mode for the current release.
To create a Light Field Source:
Important: In case you want to add
the source in a Direct simulation, make sure that all parts of the source are enclosed in one single
body, or in one ambient material, and therefore are not located in two (or more) bodies or ambient
materials. Otherwise you may generate propagation
errors.
-
From the Light Simulation tab, click Light Field
_Source_Light_Field.png)
.
-
In the 3D view, define the Axis system of the Light Field source.
_Axis_System_Definition.png)
- Click
_Origin_Point.png)
to select an origin point. - Click
_Sensor_Lidar_Horizontal_Direction.png)
to select a line defining the horizontal direction. - Click
_Sensor_Lidar_Vertical_Direction.png)
to select a line defining the vertical direction. - or click
_Axis_System_Autofill.png)
and select a coordinate
system to autofill the Axis System.
Note: If you define manually one axis only, the other axis is automatically (and randomly) calculated by Speos in the 3D view. However, the other axis in the Definition panel may not correspond to the axis in the 3D view. Please refer to the axis in the 3D view. - Click
-
From the Light Field file drop-down list, click Browse to load an optical light field file *.olf.
_Source_Light_Field_File.png)
-
If the selected optical light field file contains radiometric or photometric data, in Wavelength, select the a spectrum file.
_Source_Light_Field_Spectrum.png)
-
In Optional or advanced settings
_Speos_Options.png)
:
_Source_Light_Field_General.png)
- adjust the Number of rays and Length of rays to display in the 3D view.
- define the Display meshing mode to display in the 3D view.