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Convert RAD to CALS

Convert RAD images to CALS format, edit and optimize images online and free.

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Radiance Scene Description (.rad)

The RAD file extension, associated with the Radiance software suite, stands for Radiance Scene Description. It is used to describe materials and geometry for lighting simulations and rendering programs. Developed by Greg Ward at Lawrence Berkeley National Laboratory, Radiance employs ray tracing and an octree data structure for accurate lighting calculations. RAD files are ASCII text files that must be compiled into an octree before rendering.

RAD Converter

Continuous Acquisition and Life-cycle Support Type 1 Image (.cals)

The CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image file format, developed by the United States Department of Defense in the mid-1980s, is a standard for storing raster (bit-mapped) image data, typically black-and-white. It ensures efficient data interchange and retention of orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images. This standard was part of the broader CALS initiative aimed at improving electronic publishing and data management within the federal government.

CALS Converter

How to convert RAD to CALS?

  1. Upload RAD File

    Select a RAD image from your computer, or drag & drop it on the page.

  2. Select RAD Tools

    Pick any RAD to CALS tools if you need to edit your RAD file, then click the Convert button.

  3. Download Your CALS

    Wait for the converter to finish and download your CALS image.

Convert RAD to CALS

Frequently Asked Questions

How to change RAD format to CALS?

To change RAD format to CALS, upload your RAD file to proceed to the preview page. Use any available tools if you want to edit and manipulate your RAD file. Click on the convert button and wait for the convert to complete. Download the converted CALS file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert RAD to CALS on macOS

Follow steps below if you have installed Vertopal CLI on your macOS system.

  1. Open macOS Terminal.
  2. Either cd to RAD file location or include path to your input file.
  3. Paste and execute the command below, substituting in your RAD_INPUT_FILE name or path. $ vertopal convert RAD_INPUT_FILE --to cals

Convert RAD to CALS on Windows

Follow steps below if you have installed Vertopal CLI on your Windows system.

  1. Open Command Prompt or Windows PowerShell.
  2. Either cd to RAD file location or include path to your input file.
  3. Paste and execute the command below, substituting in your RAD_INPUT_FILE name or path. $ vertopal convert RAD_INPUT_FILE --to cals

Convert RAD to CALS on Linux

Follow steps below if you have installed Vertopal CLI on your Linux system.

  1. Open Linux Terminal.
  2. Either cd to RAD file location or include path to your input file.
  3. Paste and execute the command below, substituting in your RAD_INPUT_FILE name or path. $ vertopal convert RAD_INPUT_FILE --to cals

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