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General

Note that MaxScript support is only available for 3dsmax 5.x and later. While VRay still exports all its parameters to MaxScript in 3dsmax 3.x and 3dsmax 4.x, there is no MaxScript access to the current renderer in those version.

In 3dsmax 5.x and higher, assuming that your current renderer is set to VRay, you can refer to it from MaxScript using the renderers structure:

vr=renderers.current VRay_Adv_1_09_03g:VRay_Adv_1_09_03g

Renderer properties

Assuming that the variable vr holds an instance of the VRay renderer, you can work with the renderer settings as with any other MaxScript object:

showproperties vr .imageSampler_type : integer .fixedRate_subdivs : integer .fixedRate_rand : boolean ............... ............... ............... .options_maxDepth : integer .options_maps : boolean .options_filterMaps : boolean .output_on : boolean .output_width : integer .output_height : integer .output_fileOnly : boolean .output_saveFile : boolean .output_fileName : string .output_saveRawFile : boolean .output_rawFileName : string false

Accessing the parameters is fairly easy, for example:

vr.gi_on=true true

Renderer methods

You can also use the following methods for saving/loading irradiance and photon maps (assuming that vr holds an instance of VRay):

Renderer method	Description
vr.saveCausticsPhotonMap <filename>	saves the current caustics photon map to the given file
vr.saveGlobalPhotonMap <filename>	saves the current global photon map to the given file
vr.saveIrradianceMap <filename>	saves the current irradiance map to the given file
vr.saveLightCache <filename>	saves the current light cache to the given file
vr.loadIrradianceMap <filename>	loads the irradiance map from the given file
vr.clearIrradianceMap()	clears the irradiance map that is currently in memory
vr.clearLightCache()	clears the light cache that is currently in memory

Global functions

Additionally, the following MaxScript functions are globally available:

Global function	Description
doVRayObjectProperties()	brings up the VRay Object Properties dialog
doVRayMeshExport()	brings up the VRay Mesh Export dialog
vrayMeshExport [meshFile:"<mesh file>"] [autoCreateProxies:true|false] [exportMultiple:true|false]	exports a .vrmesh file without showing a dialog

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