![]() If the movie is too slow, go back to the "Flow" tab and reduce the "Refinement" value. Click on the "Animation" tab, click on the rewind and play VCR controls, and watch the movie.Rotate the image with a mouse to see something like this:.Click the "2D" tab, check "Instance 1", select "Refinement" 2, and 2D variable GRNHFX, check "Apply color and opacity to terrain surface", and push the "Fit data" button at the bottom.Click the "Animation" tab and move the "Frame position" slider to the middle (in the ideal "hill" example), or to a time when you know that the fire has already well developed.You should see a picture like this (the starting points of the flow lines are picked randomly so they are different in every session): Click the "Flow" tab, check the box "Instance 1", click "OK" on a warning about flow lines below zero.In the black right panel, you should see an empty wireframe box from the top. In the GUI, click "Data" on the top menu bar, then "Import WRF output files into current session" or "Data", then "Import data into current session" then select "WRF_ARW" from the submenu, and navigate to your wrfout file.Start VAPOR by clicking on its icon or vaporgui from the command line.If the visualization computer is different from the computer where you run WRF-Fire, transfer the wrfout file to the visualization computer.The pictures below are from the "hill" ideal run in WRF-Fire. Make sure frames_per_outfile is large enough so that only one wrfout file is produced. Change in namelist.input the line with history_interval to the desired frame interval in seconds, for example history_interval_s=1.VAPOR can be used remotely over a version of VNC with OpenGL support, to avoid transferring huge datasets to your visualization computer.Do the exercises in the first few pages of the VAPOR quick start guide to learn the basics of the controls.On a Mac, run the installation package, then add to your path /Applications/VAPOR.app/Contents/MacOS.Download and install VAPOR ( for idealized cases we recommend using Vapor version 2.0.0 as newer versions have problems with processing wrfoutput data without valid latitude and longitude provided in degrees).A visualization computer with a decent graphics card and drivers (hardware accelerated OpenGL required), 3 button mouse.A working installation of WRF-Fire, possibly on a remote supercomputer or a cluster.
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