If you are looking for our legacy version of Vapor 2.6, follow this link to the bottom of the page.

Weekly Build

Vapor builds installers on a weekly basis. These have new features that have not been tested, and may be unstable.

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Current Stable Release: Vapor 3.4.0

Download here

Major usability improvements include:

  • Improved algorithm for the Flow renderer’s random seeding bias variable
  • Data-independent settings (e.g. Cache size) can now be modified before data is loaded
  • Restructuring of Vapor’s top-level tabs
  • New and improved Colorbars
  • Improved functionality of the Geometry tab
  • Better space management of the Renderer Table

Other notable issues include:

  • Addition of clang-format linter, and git pre-push hook
  • Fixed weekly builds on all platforms

A comprehensive list of fixes can be viewed in the 3_4_0 release milestone.

Vapor 3.3.0

December 17, 2020

Download here

Release notes for VAPOR-3.3.0

  • Introduced new flow rendering algorithms, including pathlines and streamlines rendered in 3D, as well as the option for density colormapping
  • The Flow renderer can now sample any set of data values along a pathline or streamline, and write those samples to a text file
  • Included a prototype Volume Renderer using Intel’s Ospray engine, allowing for 3D rendering of unstructured models like MPAS
  • Improved Vapor’s GUI components and architecture for more consistent behavior and improved usability
  • Vapor’s sliders no longer have pre-set limits, and can now have their range of values adjusted through a menu opened with a right-mouse click
  • Multiple performance optimizations to Vapor’s internal data management system, and the Flow and Image renderers
  • New colormaps, taken from MatPlotLib’s cmocean package
  • Updates to Vapor’s third-party libraries

Vapor 3.2.0

February 3, 2020

Download here

Release notes for VAPOR-3.2.0

New Features:

  • Flow Renderer
  • Model Renderer
  • New Transfer Function Editor
  • Off screen rendering
  • Performance optimization to Vapor’s DataMgr class
  • Added support for stretched grids to vdccreate
  • Added ability to color Volume Renderings with a secondary variable
  • Increased Volume Rendering sampling rate maximum setting
  • Updated 3rd party libraries

Installation Instructions

We encourage users of Vapor to install with the methods described here. If you’re a developer and would like to contribute, see the Contributing to Vapor section.


Run the downloaded .sh script in a terminal window. It will prompt you as to where the binaries will be installed. For example:

% sh

A demonstration for installation on Linux systems can be viewed here:


Double click on the downloaded .dmg file. Once the Finder window pops up, drag the Vapor icon into the Applications folder.

A demonstration for installing on OSX systems can be viewed here:


Run the downloaded .exe file. A wizard will step you through the installer settings necessary for setup.

A demonstration for installing on Windows systems can be viewed here:

Sample Data

Dataset Model Grid Resolution File Size
DUKU WRF 181 x 166 x 35 734 MB
Kauffman ROMS 226 x 642 x 43 495 MB


Users can download a 500 meter resolution image of NASA’s BigBlueMarble for use in Vapor’s Image Renderer.

Previous Releases

Vapor 3.1.0

July 5, 2019

Download here

Release notes for VAPOR-3.1.0

New Features:

  • 3D Variable Support
  • Direct Volume Renderer
  • Isosurfaces
  • Slice Renderer
  • Wireframe Renderer
  • Python variable engine
  • Geotiff creation from Vapor renderings
  • Support for MPAS-A and MOM6 models

Vapor 2

If you are interested in using Vapor 2, it can be downloaded after filling out a short survey.

Vapor 2 is deprecated, and we strongly encourage users to download the currently supported releases of Vapor 3.

Legacy documentation for Vapor 2 can be found here. Please note that this website is no longer supported, and some links may be broken. Use at your own discretion.