def update_project(_):
"""
This function automatically runs when a .blend file is opened.
:param _:
:return:
"""
# Compile all OSL Script nodes
stdosl_path = path_util.get_stdosl_paths()
compiler = asr.ShaderCompiler(stdosl_path)
q = asr.ShaderQuery()
for script in bpy.data.texts:
osl_bytecode = osl_utils.compile_osl_bytecode(compiler,
script)
if osl_bytecode is not None:
q.open_bytecode(osl_bytecode)
node_data = osl_utils.parse_shader(q)
node_name, node_category, node_classes = osl_utils.generate_node(node_data,
AppleseedOSLScriptNode)
for cls in node_classes:
safe_register_class(cls)
else:
logger.debug(f"appleseed: Shader {script.name} did not compile")
def read_osl_shaders():
"""
Reads parameters from OSL .oso files using the ShaderQuery function that is built
into the Python bindings for appleseed. These parameters are used to create a dictionary
of the shader parameters that is then added to a list. This shader list is passed
on to the oslnode.generate_node function.
:return: List of parsed nodes
"""
nodes = list()
shader_directories = path_util.get_osl_search_paths()
q = asr.ShaderQuery()
logger.debug("[appleseed] Parsing OSL shaders...")
for shader_dir in shader_directories:
if os.path.isdir(shader_dir):
logger.debug("[appleseed] Searching {0} for OSO files...".format(
shader_dir))
for file in os.listdir(shader_dir):
if file.endswith(".oso"):
logger.debug("[appleseed] Reading {0}...".format(file))
filename = os.path.join(shader_dir, file)
q.open(filename)
nodes.append(parse_shader(q, filename=filename))
logger.debug("[appleseed] OSL parsing complete.")
return nodes
def generate_appleseed_nodedefs():
doc = mx.createDocument()
# Add library includes
q = asr.ShaderQuery()
for root, dir, files in os.walk(oso_shaders_dir):
for file in files:
if file.endswith('.oso'):
filename = os.path.join(root, file)
q.open(filename)
name = q.get_shader_name()
# Create a nodedef taking three color3 and producing another color3
nodeType = 'multioutput' if check_multioutput(
q) else 'surfaceshader'
nodeDef = doc.addNodeDef(
'ND_%s' % name, nodeType,
name) # type to be determined from shader type
add_ports(nodeDef, q)
outfile = 'appleseed_auto_defs.mtlx'
mx.writeToXmlFile(doc, outfile)
def read_osl_shaders():
'''
Reads parameters from OSL .oso files using the ShaderQuery function that is built
into the Python bindings for appleseed. These parameters are used to create a dictionary
of the shader parameters that is then added to a list. This shader list is passed
on to the oslnode.generate_node function.
'''
nodes = []
if not path_util.get_appleseed_bin_dir_path():
logger.warning("[appleseed] WARNING: Path to appleseed's binary directory not set: rendering and OSL features will not be available.")
return nodes
shader_directories = path_util.get_osl_search_paths()
import appleseed as asr
q = asr.ShaderQuery()
logger.debug("[appleseed] Parsing OSL shaders...")
for shader_dir in shader_directories:
if os.path.isdir(shader_dir):
logger.debug("[appleseed] Searching {0} for OSO files...".format(shader_dir))
for file in os.listdir(shader_dir):
if file.endswith(".oso"):
logger.debug("[appleseed] Reading {0}...".format(file))
d = {}
filename = os.path.join(shader_dir, file)
q.open(filename)
d['inputs'] = []
d['outputs'] = []
shader_meta = q.get_metadata()
if 'as_node_name' in shader_meta:
d['name'] = shader_meta['as_node_name']['value']
else:
d['name'] = q.get_shader_name()
d['filename'] = filename
if 'URL' in shader_meta:
d['url'] = shader_meta['URL']['value']
else:
d['url'] = ''
if 'as_category' in shader_meta:
d['category'] = shader_meta['as_category']['value']
else:
d['category'] = 'other'
num_of_params = q.get_num_params()
for x in range(0, num_of_params):
metadata = {}
param = q.get_param_info(x)
if 'metadata' in param:
metadata = param['metadata']
param_data = {}
param_data['name'] = param['name']
param_data['type'] = param['type']
param_data['connectable'] = True
param_data['hide_ui'] = param['validdefault'] is False
if 'default' in param:
param_data['default'] = param['default']
if 'label' in metadata:
param_data['label'] = metadata['label']['value']
if 'widget' in metadata:
param_data['widget'] = metadata['widget']['value']
if param_data['widget'] == 'null':
param_data['hide_ui'] = True
if 'page' in metadata:
param_data['section'] = metadata['page']['value']
if 'min' in metadata:
param_data['min'] = metadata['min']['value']
if 'max' in metadata:
param_data['max'] = metadata['max']['value']
if 'softmin' in metadata:
param_data['softmin'] = metadata['softmin']['value']
if 'softmax' in metadata:
param_data['softmax'] = metadata['softmax']['value']
if 'help' in metadata:
param_data['help'] = metadata['help']['value']
if 'options' in metadata:
param_data['options'] = metadata['options']['value'].split(" = ")[-1].replace("\"", "").split("|")
if 'as_blender_input_socket' in metadata:
param_data['connectable'] = False if metadata['as_blender_input_socket']['value'] == 0.0 else True
if param['isoutput'] is True:
d['outputs'].append(param_data)
else:
d['inputs'].append(param_data)
nodes.append(d)
logger.debug("[appleseed] OSL parsing complete.")
return nodes
def appendShaders( menuDefinition ) :
# Collect all OSL shaders.
categorisedMenuItems = {}
uncategorisedMenuItems = []
q = asr.ShaderQuery()
for path in os.environ["APPLESEED_SEARCHPATH"].split( ":" ) :
for shader in glob.glob( os.path.join( path, "*.oso" ) ) :
shaderFilename = os.path.basename( shader )
if shaderFilename.startswith( "as_" ) :
shaderName = shaderFilename.replace( ".oso", "" )
category = None
menuPath = "/Appleseed/Shader"
q.open( shader )
shaderMetadata = q.get_metadata()
if 'as_node_name' in shaderMetadata :
displayName = shaderMetadata['as_node_name']['value']
else:
displayName = " ".join( [ IECore.CamelCase.toSpaced( x ) for x in shaderName.split( "_" ) ] )
if 'as_category' in shaderMetadata :
category = shaderMetadata['as_category']['value']
menuPath += "/" + category.capitalize()
if not category in categorisedMenuItems :
categorisedMenuItems[category] = []
else :
menuPath += "/Other"
menuPath += "/" + displayName
nodeCreator = functools.partial( __shaderNodeCreator, shaderName )
if category :
categorisedMenuItems[category].append( ( displayName, menuPath, nodeCreator ) )
else :
uncategorisedMenuItems.append( ( displayName, menuPath, nodeCreator ) )
# Create menu entries.
for category in categorisedMenuItems :
shaders = categorisedMenuItems[category]
shaders.sort()
for shader in shaders :
name, menuPath , nodeCreator = shader
menuDefinition.append(
menuPath,
{
"command" : GafferUI.NodeMenu.nodeCreatorWrapper( nodeCreator ),
"searchText" : menuPath.rpartition( "/" )[2].replace( " ", "" ),
}
)
uncategorisedMenuItems.sort()
for shader in uncategorisedMenuItems :
name, menuPath , nodeCreator = shader
menuDefinition.append(
menuPath,
{
"command" : GafferUI.NodeMenu.nodeCreatorWrapper( nodeCreator ),
"searchText" : "as" + menuPath.rpartition( "/" )[2].replace( " ", "" ),
}
)
def execute(self, context):
temp_values = dict()
input_connections = dict()
output_connections = dict()
material = context.object.active_material
node_tree = material.node_tree
node = node_tree.nodes.active
location = node.location
width = node.width
script = node.script
# Save existing connections and parameters
for key, value in node.items():
temp_values[key] = value
for input_iter in node.inputs:
if input_iter.is_linked:
input_connections[
input_iter.bl_idname] = input_iter.links[0].from_socket
for output in node.outputs:
if output.is_linked:
outputs = []
for link in output.links:
outputs.append(link.to_socket)
output_connections[output.bl_idname] = outputs
stdosl_path = path_util.get_stdosl_paths()
compiler = asr.ShaderCompiler(stdosl_path)
osl_bytecode = osl_utils.compile_osl_bytecode(compiler, script)
if osl_bytecode is not None:
q = asr.ShaderQuery()
q.open_bytecode(osl_bytecode)
node_data = osl_utils.parse_shader(q)
node_name, node_category, node_classes = osl_utils.generate_node(
node_data, AppleseedOSLScriptNode)
for cls in reversed(node.classes):
util.safe_unregister_class(cls)
for cls in node_classes:
util.safe_register_class(cls)
node_tree.nodes.remove(node)
new_node = node_tree.nodes.new(node_name)
new_node.location = location
new_node.width = width
new_node.classes.extend(node_classes)
setattr(new_node, "node_type", "osl_script")
# Copy variables to new node
for variable, value in temp_values.items():
if variable in dir(new_node):
setattr(new_node, variable, value)
# Recreate node connections
for connection, sockets in output_connections.items():
for output in new_node.outputs:
if output.bl_idname == connection:
output_socket_class = output
if output_socket_class:
for output_connection in sockets:
node_tree.links.new(output_socket_class,
output_connection)
for connection, sockets in input_connections.items():
for in_socket in new_node.inputs:
if in_socket.bl_idname == connection:
input_socket_class = in_socket
if input_socket_class:
for input_connection in sockets:
node_tree.links.new(input_socket_class,
input_connection)
else:
self.report({'ERROR'}, "OSL script did not compile!")
return {'FINISHED'}