Arnold procedural parameters

name	type	description
cachePath	string	Atoms cache path, the folder where the atoms cache is located or the full path to the cache .atoms file header (i.e. /../../foo_path/mycache.atoms)
cacheName	string	Atoms cache name, this can be an empty value if the full cache path is provided in the cachePath attribute
variationsPath	string	This is the full path to the json variation table. This can also be the serialized variation table which can be retrieved by the following code. json_table_str = "...……….." json_data = Atoms.loadVariationFromString(json_table_str) variationsStr = json_data.toString(False) vm = AtomsCore.StringMetadata(variationsStr) ark = AtomsCore.Archive(vm.memSize()) vm.serialise(ark) variations_serialized = ark.encodeBase64(True)
time	float	Cache time. You can use this or frame, depending on the DCC you are in. Internally the procedural use time+frame+timeOffset as cache time
frame	float	Cache frame. You can use this or time, depending on the dcc your are in. Internally the procedural use time+frame+timeOffset as cache time
timeOffset	float	Cache time offset
shutter	array2	Float array of length 2 containing the shutterOpen and ShutterClose. Depending on your DCC you should this or the two shutterOpen/Close attributes. Internally the procedural compute shutterOpen+shutter[0] and shutterClose+shutter[1]
shutterOpen	float	Depending on the DCC you are in use this or the shutter[0] attributes. Internally the procedural compute shutterOpen+shutter[0] and shutterClose+shutter[1]
shutterClose	float	Depending on the DCC you are in use this or the shutter[1] attribute. Internally the procedural compute shutterOpen+shutter[0] and shutterClose+shutter[1]
numMotionBlurKeys	int	Number of motion blur samples
agentIds	string	Agent ids to load. You can provide multiple ids using the comma to separate them, you can also use - to specify a range or ! to remove agents. Like 2-8,13,15-18 or !8,!10 or !(2-10)…
meshFilter	string	List of mesh to filter. You can provide multiple comma separated mesh names (without whitespaces). You can use * as wildcard and ! to negate. For instance body,head or !*body...
offset	array3	Cache translation offset.
disableVariationMaterials	string	This disable materials from the variation table. You can provide multiple comma separated values (without whitespaces). You can use * as wildcard.
sceneMaterials	string	List of the materials the procedural should load from the current scene and not from the variation table. You can provide multiple comma separated values (without whitespaces). You can use * as wildcard and ! to negate
materialOverrides	string	Connect a material to a specific mesh. You can provide multiple comma separated values. The syntax is meshName:materialName. You can use the * as wildcard. I.e. *_head:yourNewMaterial
disableDefaultMaterial	int	Disable the green shader if there is no valid shader inside the variation table or there is no variation metadata on the agents.
dispalcementPostfix	string	Used when using shaders from the scene and not from the variation table. The procedural looks for the displacement shader using shaderName+dispalcementPostfix as a lookup name.
atomsShaderAttributePrefix	string	The procedural transfers every agent metadata to the skinned mesh using "atomsShaderAttributePrefix+metadataName" as name. You can use this data to drive shader parameters. Default value "atoms_"
agentType	string	Override agent type. You can provide multiple comma separated values. To override the variation of every agent provide an agent type name. If you want override specific agents use the following syntax: agentId@agentType. I.e. 1@robot,4@soldier,6-15@robot
agentVariation	string	Override agent variation. You can provide multiple comma separated values. To override the variation of every agent provide a variation name. If you want override specific agent use the following syntax: agentd@variaitonName. I.e. 1@robot1,4@robot2,6-15@robot4
agentLod	string	Override agent lod. You can provide multiple comma separated values. To override the lod of every agent provide just the lod value. If you want override specific agent use the following syntax: agentd@lodValue. I.e. 1@lodA,4@lodC,6-15@lodB
agentMetadata	string	Override or create agent metadata (only bool, int, double, vec3 and string). You can provide multiple comma separated values. Use the following syntax, agentId@metadataname#value. I.e. 10@myIntMetada#10 20@myBoolMetada#true 10-25@myDoubleMetada#12.5 10-25@myVector3Metada#1.0;2.0;3.0 10-25@myStringMetada#test
clothCachePath	string	Atoms cloth cache path, the folder where the atoms cache is located or the full path to the .clothcachefile header. i.e. /../../foo_path/mycache.clothcache
clothCacheName	string	Cloth cache name, this can be an empty value if the full cache path is provided in the clothCachePath attribute.
groomCachePath	string	Path to one of the alembic file generated by the alembic cache exporter (with groom option activated).
groomCurvesCachePath	string	Path to one of the alembic file generated by the cfx cache exporter.
irRenderCamPos	Vec	Camera position needed by the xgen procedural
irRenderCamFOV	Vec2	Camera fov needed by the xgen procedural
irRenderCamXform	xform	Camera matrix needed by xgen procedural
irRenderCamRatio	float	Camera ratio needed by xgen procedural
irRenderCamType	bool	Camera type needed by xgen procedural
useInstances	bool	Activates the agent instancing
useFrustumCulling	bool	Activates frustum culling
frustumCullingOverscan	array3	Overscan similar to the maya camera overscan used by the frustum culling
frustumCullingProjectionMatrices	array	Array of camera model view projection matrices. If you use this attribute, It must have the same length of the motion blur samples.
frustumCullingProjectionMatrix	array	If there is no frustumCullingProjectionMatrices, the procedural uses this camera model view projection matrix for all the motion blur samples.