ayon-core/pype/plugins/maya/publish/extract_model.py
2020-09-25 16:35:17 +02:00

99 lines
3.7 KiB
Python

# -*- coding: utf-8 -*-
"""Extract model as Maya Scene."""
import os
from maya import cmds
import avalon.maya
import pype.api
from pype.hosts.maya import lib
class ExtractModel(pype.api.Extractor):
"""Extract as Model (Maya Scene).
Only extracts contents based on the original "setMembers" data to ensure
publishing the least amount of required shapes. From that it only takes
the shapes that are not intermediateObjects
During export it sets a temporary context to perform a clean extraction.
The context ensures:
- Smooth preview is turned off for the geometry
- Default shader is assigned (no materials are exported)
- Remove display layers
"""
label = "Model (Maya Scene)"
hosts = ["maya"]
families = ["model"]
scene_type = "ma"
def process(self, instance):
"""Plugin entry point."""
ext_mapping = instance.context.data["presets"]["maya"].get("ext_mapping") # noqa: E501
if ext_mapping:
self.log.info("Looking in presets for scene type ...")
# use extension mapping for first family found
for family in self.families:
try:
self.scene_type = ext_mapping[family]
self.log.info(
"Using {} as scene type".format(self.scene_type))
break
except KeyError:
# no preset found
pass
# Define extract output file path
stagingdir = self.staging_dir(instance)
filename = "{0}.{1}".format(instance.name, self.scene_type)
path = os.path.join(stagingdir, filename)
# Perform extraction
self.log.info("Performing extraction ...")
# Get only the shape contents we need in such a way that we avoid
# taking along intermediateObjects
members = instance.data("setMembers")
members = cmds.ls(members,
dag=True,
shapes=True,
type=("mesh", "nurbsCurve"),
noIntermediate=True,
long=True)
with lib.no_display_layers(instance):
with lib.displaySmoothness(members,
divisionsU=0,
divisionsV=0,
pointsWire=4,
pointsShaded=1,
polygonObject=1):
with lib.shader(members,
shadingEngine="initialShadingGroup"):
with avalon.maya.maintained_selection():
cmds.select(members, noExpand=True)
cmds.file(path,
force=True,
typ="mayaAscii" if self.scene_type == "ma" else "mayaBinary", # noqa: E501
exportSelected=True,
preserveReferences=False,
channels=False,
constraints=False,
expressions=False,
constructionHistory=False)
# Store reference for integration
if "representations" not in instance.data:
instance.data["representations"] = []
representation = {
'name': self.scene_type,
'ext': self.scene_type,
'files': filename,
"stagingDir": stagingdir,
}
instance.data["representations"].append(representation)
self.log.info("Extracted instance '%s' to: %s" % (instance.name, path))