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97 lines
3.4 KiB
Python
97 lines
3.4 KiB
Python
import os
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import json
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from collections import OrderedDict
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from maya import cmds
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import pyblish.api
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import avalon.maya
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import pype.api
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import pype.maya.lib as maya
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from cb.utils.maya import context
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class ExtractLook(pype.api.Extractor):
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"""Extract Look (Maya Ascii + JSON)
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Only extracts the sets (shadingEngines and alike) alongside a .json file
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that stores it relationships for the sets and "attribute" data for the
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instance members.
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"""
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label = "Extract Look (Maya ASCII + JSON)"
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hosts = ["maya"]
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families = ["studio.look"]
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order = pyblish.api.ExtractorOrder + 0.2
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def process(self, instance):
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# Define extract output file path
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dir_path = self.staging_dir(instance)
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maya_fname = "{0}.ma".format(instance.name)
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json_fname = "{0}.json".format(instance.name)
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# Make texture dump folder
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maya_path = os.path.join(dir_path, maya_fname)
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json_path = os.path.join(dir_path, json_fname)
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self.log.info("Performing extraction..")
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# Remove all members of the sets so they are not included in the
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# exported file by accident
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self.log.info("Extract sets (Maya ASCII) ...")
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lookdata = instance.data["lookData"]
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relationships = lookdata["relationships"]
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sets = relationships.keys()
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resources = instance.data["resources"]
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remap = OrderedDict() # needs to be ordered, see color space values
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for resource in resources:
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attr = resource['attribute']
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remap[attr] = resource['destination']
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# Preserve color space values (force value after filepath change)
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# This will also trigger in the same order at end of context to
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# ensure after context it's still the original value.
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color_space_attr = resource['node'] + ".colorSpace"
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remap[color_space_attr] = cmds.getAttr(color_space_attr)
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self.log.info("Finished remapping destinations ...")
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# Extract in correct render layer
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layer = instance.data.get("renderlayer", "defaultRenderLayer")
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with context.renderlayer(layer):
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# TODO: Ensure membership edits don't become renderlayer overrides
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with context.empty_sets(sets, force=True):
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with maya.attribute_values(remap):
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with avalon.maya.maintained_selection():
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cmds.select(sets, noExpand=True)
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cmds.file(maya_path,
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force=True,
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typ="mayaAscii",
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exportSelected=True,
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preserveReferences=False,
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channels=True,
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constraints=True,
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expressions=True,
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constructionHistory=True)
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# Write the JSON data
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self.log.info("Extract json..")
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data = {"attributes": lookdata["attributes"],
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"relationships": relationships}
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with open(json_path, "w") as f:
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json.dump(data, f)
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if "files" not in instance.data:
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instance.data["files"] = list()
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instance.data["files"].append(maya_fname)
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instance.data["files"].append(json_fname)
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self.log.info("Extracted instance '%s' to: %s" % (instance.name,
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maya_path))
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