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Convert RAD to CAL

Convert RAD images to CAL 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 (.cal)

The CAL file extension, known as CALS (Continuous Acquisition and Life-cycle Support) Type 1 Image, is a 1-bit black-and-white raster image format developed by the U.S. Department of Defense in the mid-1980s to standardize graphics data interchange for military documentation. It is primarily used for storing and sharing monochrome images while retaining orientation metadata. The format supports both uncompressed and compressed (using CCITT Group 4 compression) images.

CAL Converter

How to convert RAD to CAL?

  1. Upload RAD File

    Select any RAD image you wish to convert by clicking the Choose File button.

  2. Select RAD Tools

    Use the tools available for converting RAD to CAL and click the Convert button.

  3. Download Your CAL

    You will be redirected to the download page to see the conversion status and download your CAL file.

Convert RAD to CAL

Frequently Asked Questions

How to change RAD format to CAL?

To change RAD format to CAL, 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 CAL file afterward.

Convert Files on Desktop

macOS
Windows
Linux

Convert RAD to CAL 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 cal

Convert RAD to CAL 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 cal

Convert RAD to CAL 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 cal

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