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286 | class LoadVDBtoVRay(plugin.Loader):
"""Load OpenVDB in a V-Ray Volume Grid"""
product_types = {"vdbcache"}
representations = {"vdb"}
label = "Load VDB to VRay"
icon = "cloud"
color = "orange"
def load(self, context, name, namespace, data):
from ayon_maya.api.lib import unique_namespace
from ayon_maya.api.pipeline import containerise
path = self.filepath_from_context(context)
assert os.path.exists(path), (
"Path does not exist: %s" % path
)
product_type = context["product"]["productType"]
# Ensure V-ray is loaded with the vrayvolumegrid
if not cmds.pluginInfo("vrayformaya", query=True, loaded=True):
cmds.loadPlugin("vrayformaya")
if not cmds.pluginInfo("vrayvolumegrid", query=True, loaded=True):
cmds.loadPlugin("vrayvolumegrid")
# Check if viewport drawing engine is Open GL Core (compat)
render_engine = None
compatible = "OpenGLCoreProfileCompat"
if cmds.optionVar(exists="vp2RenderingEngine"):
render_engine = cmds.optionVar(query="vp2RenderingEngine")
if not render_engine or render_engine != compatible:
self.log.warning("Current scene's settings are incompatible."
"See Preferences > Display > Viewport 2.0 to "
"set the render engine to '%s'" % compatible)
folder_name = context["folder"]["name"]
namespace = namespace or unique_namespace(
folder_name + "_",
prefix="_" if folder_name[0].isdigit() else "",
suffix="_",
)
# Root group
label = "{}:{}_VDB".format(namespace, name)
root = cmds.group(name=label, empty=True)
project_name = context["project"]["name"]
settings = get_project_settings(project_name)
color = get_load_color_for_product_type(product_type, settings)
if color is not None:
red, green, blue = color
cmds.setAttr(root + ".useOutlinerColor", 1)
cmds.setAttr(root + ".outlinerColor", red, green, blue)
# Create VRayVolumeGrid
grid_node = cmds.createNode("VRayVolumeGrid",
name="{}Shape".format(label),
parent=root)
# Ensure .currentTime is connected to time1.outTime
cmds.connectAttr("time1.outTime", grid_node + ".currentTime")
# Set path
self._set_path(grid_node, path, show_preset_popup=True)
# Lock the shape node so the user can't delete the transform/shape
# as if it was referenced
cmds.lockNode(grid_node, lock=True)
nodes = [root, grid_node]
self[:] = nodes
return containerise(
name=name,
namespace=namespace,
nodes=nodes,
context=context,
loader=self.__class__.__name__)
def _set_path(self, grid_node, path, show_preset_popup=True):
from ayon_maya.api.lib import attribute_values
from maya import cmds
def _get_filename_from_folder(path):
# Using the sequence of .vdb files we check the frame range, etc.
# to set the filename with #### padding.
files = sorted(x for x in os.listdir(path) if x.endswith(".vdb"))
if not files:
raise RuntimeError("Couldn't find .vdb files in: %s" % path)
if len(files) == 1:
# Ensure check for single file is also done in folder
fname = files[0]
else:
# Sequence
import clique
# todo: check support for negative frames as input
collections, remainder = clique.assemble(files)
assert len(collections) == 1, (
"Must find a single image sequence, "
"found: %s" % (collections,)
)
collection = collections[0]
fname = collection.format('{head}{{padding}}{tail}')
padding = collection.padding
if padding == 0:
# Clique doesn't provide padding if the frame number never
# starts with a zero and thus has never any visual padding.
# So we fall back to the smallest frame number as padding.
padding = min(len(str(i)) for i in collection.indexes)
# Supply frame/padding with # signs
padding_str = "#" * padding
fname = fname.format(padding=padding_str)
return os.path.join(path, fname)
# The path is either a single file or sequence in a folder so
# we do a quick lookup for our files
if os.path.isfile(path):
path = os.path.dirname(path)
path = _get_filename_from_folder(path)
# Even when not applying a preset V-Ray will reset the 3rd Party
# Channels Mapping of the VRayVolumeGrid when setting the .inPath
# value. As such we try and preserve the values ourselves.
# Reported as ChaosGroup bug ticket: 154-011-2909
# todo(roy): Remove when new V-Ray release preserves values
original_user_mapping = cmds.getAttr(grid_node + ".usrchmap") or ""
# Workaround for V-Ray bug: fix lag on path change, see function
_fix_duplicate_vvg_callbacks()
# Suppress preset pop-up if we want.
popup_attr = "{0}.inDontOfferPresets".format(grid_node)
popup = {popup_attr: not show_preset_popup}
with attribute_values(popup):
cmds.setAttr(grid_node + ".inPath", path, type="string")
# Reapply the 3rd Party channels user mapping when no preset popup
# was shown to the user
if not show_preset_popup:
channels = cmds.getAttr(grid_node + ".usrchmapallch").split(";")
channels = set(channels) # optimize lookup
restored_mapping = ""
for entry in original_user_mapping.split(";"):
if not entry:
# Ignore empty entries
continue
# If 3rd Party Channels selection channel still exists then
# add it again.
index, channel = entry.split(",")
attr = THIRD_PARTY_CHANNELS.get(int(index),
# Fallback for when a mapping
# was set that is not in the
# documentation
"???")
if channel in channels:
restored_mapping += entry + ";"
else:
self.log.warning("Can't preserve '%s' mapping due to "
"missing channel '%s' on node: "
"%s" % (attr, channel, grid_node))
if restored_mapping:
cmds.setAttr(grid_node + ".usrchmap",
restored_mapping,
type="string")
def update(self, container, context):
repre_entity = context["representation"]
path = get_representation_path(repre_entity)
# Find VRayVolumeGrid
members = cmds.sets(container['objectName'], query=True)
grid_nodes = cmds.ls(members, type="VRayVolumeGrid", long=True)
assert len(grid_nodes) > 0, "This is a bug"
# Update the VRayVolumeGrid
for grid_node in grid_nodes:
self._set_path(grid_node, path=path, show_preset_popup=False)
# Update container representation
cmds.setAttr(container["objectName"] + ".representation",
repre_entity["id"],
type="string")
def switch(self, container, context):
self.update(container, context)
def remove(self, container):
# Get all members of the AYON container, ensure they are unlocked
# and delete everything
members = cmds.sets(container['objectName'], query=True)
cmds.lockNode(members, lock=False)
cmds.delete([container['objectName']] + members)
# Clean up the namespace
try:
cmds.namespace(removeNamespace=container['namespace'],
deleteNamespaceContent=True)
except RuntimeError:
pass
|