Download HaloSim3

Download HaloSim3: A Comprehensive Tool for Atmospheric Optics Simulations

If you're fascinated by the mesmerizing phenomena of atmospheric optics and want to explore and simulate these enchanting displays, look no further than HaloSim3. This powerful software allows you to create stunning simulations of halos, rainbows, glories, fogbows, and coronas, providing an immersive experience that can deepen your understanding of these captivating optical effects.

What is HaloSim3?

HaloSim3 is a user-friendly software program designed to run on PCs with Windows 95 or later operating systems. With its intuitive interface and rich features, it enables users to generate realistic and accurate simulations of atmospheric optics phenomena. Developed by L. Cowley and M. Schroeder, this tool has become a valuable resource for researchers, educators, and enthusiasts alike.

Features and Capabilities

HaloSim3 comes packed with an array of features and capabilities that make it an indispensable tool for studying atmospheric optics. Here are some of the key highlights:

  1. Wide Compatibility: The software is compatible with Windows 95 and newer versions, ensuring accessibility for a wide range of users.

  2. Color Depth: While a 24-bit color display is desirable for optimal visualization, HaloSim3 can still function effectively on systems with lower color depths.

  3. Minimal System Requirements: The software has modest memory and hard disk requirements, allowing it to run smoothly on most PCs without straining system resources.

  4. Comprehensive Data: When you download HaloSim3, you receive a complete package that includes all the necessary data and pre-configured simulations. This saves you time and effort by providing ready-to-run scenarios.

  5. Easy Installation: The installation process is straightforward. Simply download the "" file, extract it into a temporary folder, run the 'setup.exe' file, and finally execute 'HaloSim361.exe' from the program files folder. The installer ensures that only standard Microsoft system files are placed in the designated folder, minimizing the risk of overwriting existing files.

How to Download and Install HaloSim3

Follow these simple steps to download and install HaloSim3 on your Windows PC:

  1. Visit the official HaloSim website and locate the download link for ""

  2. Click on the download link to initiate the download process. The file size is approximately 2.38 MB.

  3. Once the download is complete, extract the contents of the downloaded ZIP file into a temporary folder.

  4. Locate the 'setup.exe' file within the extracted files and run it. You will be prompted to choose a folder for the program files. You can either select a custom folder or use the suggested default location, typically inside "C:\Program Files."

  5. After the installation is complete, navigate to the program files folder and run 'HaloSim361.exe' to launch the software.

Expand Your Simulation Arsenal with IRIS Simulator

If you have already explored the wonders of HaloSim3 and want to expand your repertoire of atmospheric optics simulations, consider trying out the IRIS simulator. Developed by the same team, this tool specializes in generating simulations of glories, fogbows, and coronas. By combining both HaloSim3 and IRIS, you can dive even deeper into the world of atmospheric optics and unlock a wealth of visual wonders.


With its user-friendly interface, comprehensive features, and easy installation process, HaloSim3 is an invaluable tool for anyone interested in atmospheric optics. Whether you're a researcher, educator, or simply an enthusiast captivated by the beauty of natural phenomena, this software empowers you to create stunning simulations that bring these optical effects to life. Download HaloSim3 today and embark on a mesmerizing journey through the wonders of atmospheric optics.

You may freely download HaloSim for personal use. You may not sell or re-distribute HaloSim on websites, CDROMs or by any other means.

Published simulations ~ Please acknowledge in the immediate caption the use of HaloSim and quote the URL ©L Cowley & M Schroeder. All rights reserved.

HaloSim runs on PCs with Windows95+. A 24 bit color is desirable. Memory and hard disk requirements are insignificant. The download comes with all data and a set of ready-to-run simulations.

	To download and install

(1) DOWNLOAD "" here (2.38 MB).

(2) EXTRACT (do not RUN) into a temporary folder.

(3) RUN 'setup.exe'. When prompted chose a folder for the program files or use the suggested default which is usually inside c:.Program Files.....

(4) RUN 'HaloSim361.exe' from the program files folder.

Installation puts only standard Microsoft systems files into other than the designated folder. Most are already present on some Windows versions and the HaloSim installer will not then overwrite them.

	Have you tried the IRIS simulator for glories, fogbows and coronas?

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Reference Atmospheric Optics

If you use any of the definitions, information, or data presented on Atmospheric Optics, please copy the link or reference below to properly credit us as the reference source. Thank you!

  • "Download HaloSim3". Atmospheric Optics. Accessed on July 13, 2024.

  • "Download HaloSim3". Atmospheric Optics, Accessed 13 July, 2024

  • Download HaloSim3. Atmospheric Optics. Retrieved from