Thank you Andres!
This is exactly what I was looking for:)
I changed a few things:
1. some commands as cmds, not mc.
2. added listRelatives as I was getting the shape node in the list of
locators, which gave me the incorrect vray_shader_target.
3. defined locators variable.
4. matches.append(locator, shader) errored out, stating it needed one
argument, but two given. It was missing [].
The changes are below:
----------------------------------------------
import maya.cmds as mc
vray_shaders = mc.ls(type='VRayMtl') # We store the materials here and not
within the for loop because it would be wasted computations for every
locator.
locators = mc.listRelatives(mc.ls(type='locator'), p=True)
matches = []
for locator in locators:
vray_shader_target = locator.replace('locator', 'shader')
if vray_shader_target in vray_shaders:
# You can shorten your query code if you use list unpacking
position = mc.getAttr(locator + '.translate')[0] # Here we obtain a list of
positions, and retrieve the first entry (translate)
mc.setAttr(vray_shader_target + '.color', *position, type='double3') #
Using * we can unpack the list of length 3 unto all three rgb entry args
matches.append([locator,vray_shader_target])
# We stored the matches in the format list(list(locator, shader)) so now
you can run through that list like this if you wanted to use it later:
for locator, vray_shader_target in matches:
print(locator, vray_shader_target)
On Monday, October 9, 2017 at 12:47:57 PM UTC-7, Andres Weber wrote:
>
> To do matching like this at a more basic level usually people do some sort
> of token within the name of each object that represents the object type.
> For example:
>
> target_locator
> target_shader
> target2_locator
> target2_shader
>
> something like that. This way you can do really quick string replacements
> to try to query the relationship of the names of two objects. Otherwise
> you'd probably need to query some sort of relationship between the two, use
> sets or a myriad of ways of defining relationships between objects in
> Maya. You're also running into the issue of matching the shape node
> because you can't actually name two nodes the exact same string.
>
> So for example (if you now name your nodes in some way like above) you
> could refactor your code to something like this:
>
> https://gist.github.com/AndresMWeber/788e203f4500039a12bf38dfc086b904
>
> On Monday, October 9, 2017 at 1:43:35 PM UTC-4, Jeremy Beauchamp wrote:
>>
>> I'm still fairly new to Maya and python, so i have a few questions.
>>
>> I have two lists:
>> 1. Materials
>> 2. Locators
>> I want to compare each list and if the locator has the same name as the
>> material then:
>> getAttr transforms from the locator and setAttr color to the material.
>>
>>
>> If I define the name of the material and locator as 'someMaterial', it
>> works.
>> How do I make it so I don't have to define the names of the material or
>> locator as that can be completely random?
>> Also, the locators will always have the same name as the material by
>> default, unless there is a better way to compare?
>>
>> -------------------------------------------
>>
>> locator = cmds.ls(type='locator')
>> someMaterialLoc=[]
>> for x in locator:
>> if x == 'someMaterialShape1':
>> someMaterialLoc.append(x)
>> print someMaterialLoc
>>
>> allShaders = cmds.ls(type='VRayMtl')
>> someMaterial =[]
>> for x in allShaders:
>> if x =='someMaterial':
>> someMaterial.append(x)
>> print someMaterial
>>
>> if str(someMaterial[0]) == someMaterialLoc[0][0:12]:
>> red = cmds.getAttr(someMaterialLoc[0], '.translateX')
>> green = cmds.getAttr(someMaterialLoc[0], '.translateY')
>> blue = cmds.getAttr(someMaterialLoc[0], '.translateZ')
>> cmds.setAttr ((someMaterial[0] + '.color'), red, green, blue, type =
>> 'double3' )
>>
>> -------------------------------------------
>>
>> Any recommendations would be greatly appreciated.
>> Thanks,
>> Jeremy
>>
>>
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