xGen query&set description map-attribute

[asi.sudai]

Hi,

Is there a way to query (and also set) the value of a description map attribute?

To be specific, I want to query the "Custom Shader Parameter"

In this case, I would love to get the full attribute value of a fur_root_color.

# Query attribute like this, doesn't work for the map attributes.
import xgenm
xgenm.getAttr('attribute_name','collection_name', 'description_name')

[cheng_xi_li · Accepted solution]

Hi,

I've got two samples for setAttr, getAttr should be same.

There are two different conditions.

For the global expression tab.

import xgenm as xg
import xgenm.xgGlobal as xgg


#Add attribute and expandable tab

de = xgg.DescriptionEditor

attr = "custom_" + "color" + "_" + "hairColor"
key = "collection1 " + attr
xg.addCustomAttr(attr, 'collection1')
de.addAttrExprsLayout(attr, True)


#Update with custom expression

myExpression = """
$freq_fine = 0.200; #0.00,1.00
$freq_coarse = 1.000; # 0,100
$X = 1.000; #0.00,10.00
$Y = 1; #0.00,10.00
$Z = 1; #0.00,10.00
$frequency = ($freq_fine+$freq_coarse) * [$X,$Y,$Z];
$Strength=1.000;
$Contrast = 0.962;
$Color = 0.000; #0,1
$Cnew = choose($Color, noise($P*$frequency), cnoise($P*$frequency))
-> contrast($Contrast);
mix($Cs,$Cnew,$Strength)
"""

#Attr is stored in the palette, check xgDescriptionEditor.getAttr for more details about how to access Description/Palette object
xg.setAttr('custom_color_hairColor', xg.prepForAttribute(myExpression), "collection1", "",'Palette')


#Refresh
de.refresh("Full")

For stored in preview/expression tab

import xgenm as xg
import xgenm.xgGlobal as xgg
import maya.cmds as cmds


cmds.file(new=True, force=True)
cmds.polySphere()


PALETTE = "collection1"
DESCRIPTION = "description1";
PRIMITIVE = "Spline";
GENERATOR = "Random";
RENDERER = "Renderman";
METHOD = "Guides";
GROOMING = False


res = xg.createBindDescription( PALETTE, DESCRIPTION, PRIMITIVE, GENERATOR, RENDERER , METHOD, GROOMING)

#RenderAPIObject
k_RenderAPIRenderer = "Renderman"
k_RenderAPIRendererObj = k_RenderAPIRenderer + "Renderer"

#From noiseE expression in library
myExpression = """
$freq_fine = 0.200; #0.00,1.00
$freq_coarse = 1.000; # 0,100
$X = 1.000; #0.00,10.00
$Y = 1; #0.00,10.00
$Z = 1; #0.00,10.00
$frequency = ($freq_fine+$freq_coarse) * [$X,$Y,$Z];
$Strength=1.000;
$Contrast = 0.962;
$Color = 0.000; #0,1
$Cnew = choose($Color, noise($P*$frequency), cnoise($P*$frequency))
-> contrast($Contrast);
mix($Cs,$Cnew,$Strength)
"""

de = xgg.DescriptionEditor

#please follow the attribute naming format, custom_%typeindroplist%_%attributename%

xg.addCustomAttr('custom_color_hairColor', de.currentPalette(), de.currentDescription(), k_RenderAPIRendererObj)
xg.setAttr('custom_color_hairColor', xg.prepForAttribute(myExpression), "collection1", "description1", k_RenderAPIRendererObj)

de.refresh("Full")

Yours,

Li