Parameters of Ray File Editor

  • In Flux box, you can type the power value and click Update. You must select the unit.

  • By clicking Edit, Change spectrum... or , you can select the spectrum type.

    Once you changed the spectrum, all the existing wavelengths are replaced by a random wavelength, chosen in the selected spectrum. The Watt or Lumenflux is also impacted. Only one value can be kept.

    • Blackbody: type the temperature value in Kelvins.

    • Monochromatic: type the value in nanometers.

    • Sampled: browse a Spectrum file.

Note: For more details, see Spectrum Editor.

  • Click to display the spectrum. You first have to adjust the wavelength sampling by typing the number of wavelengths values.

  • Click Edit, Add another ray file... or to add a new .ray file.

  • Click Edit, Invert direction of rays or to invert the directions of all rays.

  • Click Edit, Mix all rays in the file or to mix all the rays.

  • In case of having small values for each ray and the values are not equal, you can click to adjust the relative energy of each ray.

    This is used to reach better performance for the calculation. The simulation time is shorter and the result is more accurate. The ray with the highest energy becomes 1 and all the others are multiplied relatively to the first ray. The relative energy remains the same.

Note: When displaying the spectrum, the ray file is read and an histogram of all rays depending on the chosen spectrum sampling is displayed. The interval for which you get the highest rays number is put relatively as 100, and other intervals' values are calculated relatively. The weight is not taken into account during this operation.
Note: When changing the spectrum, all rays are mixed and then randomly divided into new spectrum's wavelength. If the ray file contains spectral information highly depending on position or orientation (RGB LED, blue/phosphore LED), information might be lost.
Warning: It is recommended not to modify ray file's spectrum.

To get a description of contents of .ray and .tm25ray files, see Contents of Ray Files.