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makeskinmaterial.py
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makeskinmaterial.py
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import os, json
from pathlib import Path
from .mhmaterial import MhMaterial
from .mhmatkeys import MHMAT_KEYS
from mpfb.services.logservice import LogService
from mpfb.services.locationservice import LocationService
from mpfb.services.nodeservice import NodeService
from mpfb.services.materialservice import MaterialService
_LOG = LogService.get_logger("material.makeskinmaterial")
_TEXTURE_NAMES = ["bumpmap", "diffuse", "displacementmap", "metallicmap", "normalmap", "roughnessmap", "transmissionmap"]
_NODE_SOCKET_VALUES = [] # key name, node name, socket name
_NODE_SOCKET_VALUES.append(["diffuseColor", "Principled BSDF", "Base Color"]) # First pick up color from principled
_NODE_SOCKET_VALUES.append(["diffuseColor", "diffuseIntensity", "Color1"]) # Then overwrite with intensity node if any
_NODE_SOCKET_VALUES.append(["diffuseIntensity", "diffuseIntensity", "Fac"])
_NODE_SOCKET_VALUES.append(["bumpmapIntensity", "bumpmap", "Strength"])
_NODE_SOCKET_VALUES.append(["normalmapIntensity", "normalmap", "Strength"])
_NODE_SOCKET_VALUES.append(["displacementmapIntensity", "displacementmap", "Scale"])
_NODE_SOCKET_VALUES.append(["metallic", "Principled BSDF", "Metallic"])
_NODE_SOCKET_VALUES.append(["ior", "Principled BSDF", "IOR"])
_NODE_SOCKET_VALUES.append(["roughness", "Principled BSDF", "Roughness"])
class MakeSkinMaterial(MhMaterial):
def __init__(self, importer_presets=None):
MhMaterial.__init__(self)
self.presets = importer_presets
def _template(self, template_values, has, tex, key):
template_values[has] = "false"
template_values[tex] = "\"\""
if key in self._settings and self._settings[key]:
_LOG.debug(key + " is set in mhmat", self._settings[key])
self._settings[key] = str(self._settings[key]).replace("\\\\", "/")
self._settings[key] = str(self._settings[key]).replace("\\", "/")
template_values[has] = "true"
template_values[tex] = "\"" + self._settings[key] + "\""
else:
_LOG.debug(key + " is not set in mhmat")
def apply_node_tree(self, blender_material, template_values=None):
tree_dir = LocationService.get_mpfb_data("node_trees")
json_file = os.path.join(tree_dir, "makeskin.json")
if template_values is None:
template_values = dict()
self._template(template_values, "has_bumpmap", "bumpmap_filename", "bumpMapTexture")
self._template(template_values, "has_diffuse", "diffuse_filename", "diffuseTexture")
self._template(template_values, "has_displacementmap", "displacementmap_filename", "displacementMapTexture")
self._template(template_values, "has_metallicmap", "metallicmap_filename", "metallicMapTexture")
self._template(template_values, "has_normalmap", "normalmap_filename", "normalMapTexture")
self._template(template_values, "has_roughnessmap", "roughnessmap_filename", "roughnessMapTexture")
self._template(template_values, "has_transmissionmap", "transmissionmap_filename", "transmissionMapTexture")
template_values["bump_or_normal"] = "false"
if template_values["has_bumpmap"] == "true":
template_values["bump_or_normal"] = "true"
if template_values["has_normalmap"] == "true":
template_values["bump_or_normal"] = "true"
_LOG.dump("template_values", template_values)
template_data = Path(json_file).read_text()
for key in template_values:
template_data = template_data.replace("\"$" + key + "\"", template_values[key])
_LOG.dump("Template data", template_data)
node_tree_dict = dict()
parse_error = None
try:
node_tree_dict = json.loads(template_data)
except Exception as exc:
_LOG.error("An error was thrown when trying to parse the template data:", exc)
_LOG.error("Full contents of template data", "\n\n" + str(template_data) + "\n\n")
parse_error = "Failed to parse material: " + str(exc) + ". See material.makeskinmaterial log for more info."
if not parse_error is None:
raise ValueError(parse_error)
_LOG.dump("node_tree", node_tree_dict)
NodeService.apply_node_tree_from_dict(blender_material.node_tree, node_tree_dict, True)
def _set_texture(self, node_tree, name):
_LOG.enter()
expected_name = name + "Texture"
node = NodeService.find_node_by_name(node_tree, expected_name)
self._settings[expected_name] = None
if not node is None:
node_info = NodeService.get_node_info(node)
if "filename" in node_info and node_info["filename"]:
self._settings[expected_name] = node_info["filename"]
else:
_LOG.warn("The following texture node did not have an image file, so cannot set a MHMAT key for it", expected_name)
else:
_LOG.debug("Could not find a node for", expected_name)
def _set_config_value(self, blender_object, expected_name):
from mpfb.ui.makeskin import MakeSkinObjectProperties
if MakeSkinObjectProperties.has_key(expected_name):
self._settings[expected_name] = MakeSkinObjectProperties.get_value(expected_name, entity_reference=blender_object)
def populate_from_object(self, blender_object):
blender_material = blender_object.material_slots[0].material
key_by_name = dict()
for key in MHMAT_KEYS:
_LOG.debug("key", (key.key_name, key.default_value, key.key_group))
self._settings[key.key_name] = key.default_value
key_by_name[key.key_name] = key
if key.key_group == "Texture":
self._set_texture(blender_material.node_tree, key.key_name)
if key.key_group in ["Metadata", "Various"]:
self._set_config_value(blender_object, key.key_name)
for nsv in _NODE_SOCKET_VALUES:
setting_name = nsv[0]
node_name = nsv[1]
socket_name = nsv[2]
node = NodeService.find_node_by_name(blender_material.node_tree, node_name)
if node:
socket_values = NodeService.get_socket_default_values(node)
if socket_values and socket_name in socket_values:
self._settings[setting_name] = socket_values[socket_name]
from mpfb.ui.makeskin import MakeSkinObjectProperties
if MakeSkinObjectProperties.get_value("sss_enable", entity_reference=blender_object):
self._settings["sssEnabled"] = True
node = NodeService.find_node_by_name(blender_material.node_tree, "Principled BSDF")
socket_values = NodeService.get_socket_default_values(node)
radius = socket_values["Subsurface Radius"]
self._settings["sssRScale"] = radius[0]
self._settings["sssGScale"] = radius[1]
self._settings["sssBScale"] = radius[2]
else:
self._settings["sssEnabled"] = False
def check_that_all_textures_are_saved(self, blender_object):
material = blender_object.material_slots[0].material
node_tree = material.node_tree
for texture_name_base in _TEXTURE_NAMES:
texture_name = texture_name_base + "Texture"
node = NodeService.find_node_by_name(node_tree, texture_name)
if node:
# The material has this kind of texture, check that its image exists
node_info = NodeService.get_node_info(node)
if not "filename" in node_info or not node_info["filename"]:
return "The " + texture_name + " node has an unsaved image"
if not os.path.exists(node_info["filename"]):
return "The " + texture_name + " refers to an image which does not exist as a file"
else:
# The material isn't using this kind of texture
_LOG.debug("No node was found for", texture_name)
return None
# TODO: Method for writing MHMAT attributes as BlenderConfigSet attributes
@staticmethod
def create_makeskin_template_material(blender_object, scene, name="MakeSkinMaterial"):
if blender_object is None:
raise ValueError('Must provide an object')
if MaterialService.has_materials(blender_object):
raise ValueError('Object already has material')
if scene is None:
raise ValueError('Must provide a scene')
from mpfb.ui.makeskin.makeskinpanel import MAKESKIN_PROPERTIES
template_values = dict()
for part in _TEXTURE_NAMES:
if MAKESKIN_PROPERTIES.get_value("create_" + part, entity_reference=scene):
template_values["has_" + part] = "true"
else:
template_values["has_" + part] = "false"
template_values[part + "_filename"] = "\"\""
material = MaterialService.create_empty_material(name, blender_object)
msmat = MakeSkinMaterial()
msmat.apply_node_tree(material, template_values)