# SimVar<no value>

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    src="images/2_DevMode/vfx_editor/nodes/simvar_1.png"
    alt="The SimVar Node" >}}


This **Node** can be used to retrieve a SimVar ([Simulation Variables](../../../../../programming-apis/simvars/simulation-variables/)) value. The output value will depend on the options you set up in the [Inspector](../../menus/#inspector) window:

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    src="images/2_DevMode/vfx_editor/nodes/simvar_2.png"
    alt="The SimVar Options in The Inspector Window" >}}


The available options are:

-   ##### SimVar

    Selecting this will open a drop-down list of all the different SimVars available to you.


{{< callout context="caution" title="IMPORTANT!" icon="outline/alert-triangle" >}}

Only the following SimVars are currently implemented correctly:

-   SIMVAR_STRUCT_LATLONALT ([STRUCT LATLONALT](../../../../../programming-apis/simvars/aircraft-simvars/aircraft-miscellaneous-variables/#STRUCT-LATLONALT))
-   SIMVAR_STRUCT_LATLONALTPBH ([STRUCT LATLONALTPBH](../../../../../programming-apis/simvars/aircraft-simvars/aircraft-miscellaneous-variables/#STRUCT-LATLONALTPBH))
-   SIMVAR_STRUCT_WORLDVELOCITY ([STRUCT WORLDVELOCITY](../../../../../programming-apis/simvars/miscellaneous-variables/#STRUCT-WORLDVELOCITY))
-   SIMVAR_STRUCT_WORLD_ROTATION_VELOCITY ([STRUCT WORLD ROTATION VELOCITY](../../../../../programming-apis/simvars/miscellaneous-variables/#STRUCT-WORLD-ROTATION-VELOCITY))
-   SIMVAR_STRUCT_BODY_VELOCITY ([STRUCT BODY VELOCITY](../../../../../programming-apis/simvars/miscellaneous-variables/#STRUCT-BODY-VELOCITY))
-   SIMVAR_STRUCT_BODY_ROTATION_VELOCITY ([STRUCT BODY ROTATION VELOCITY](../../../../../programming-apis/simvars/miscellaneous-variables/#STRUCT-BODY-ROTATION-VELOCITY))
-   SIMVAR_STRUCT_SURFACE_RELATIVE_VELOCITY ([STRUCT SURFACE RELATIVE VELOCITY](../../../../../programming-apis/simvars/miscellaneous-variables/#STRUCT-SURFACE-RELATIVE-VELOCITY))

Other sim vars can still be used, and the majority will return a floating point (scalar) value. If the value being returned should be a boolean value, then 0.0 is considered "false" and anything greater than 0.0 would be "true".

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-   ##### SimVarIndex

    Here you can select the SimVar *index* value. Not all SimVars require this value, but it is needed for things like engines, where you need an index to indicate which engine you want to retrieve a value from.

-   ##### Unit

    This is for setting the unit type of the SimVar being retrieved. It can be any one of those listed here: [Simulation Variable Units](../../../../../programming-apis/simvars/simulation-variable-units/)


### Node Output

The output of the node will very much depend on the SimVar that is being used to generate it, however **currently the supported SimVars will only return a 3 value vector**.