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nodes.py
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# ##### BEGIN MIT LICENSE BLOCK #####
#
# Copyright (c) 2015 - 2017 Pixar
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
#
# ##### END MIT LICENSE BLOCK #####
import bpy
import _cycles
from bpy.app.handlers import persistent
import xml.etree.ElementTree as ET
import tempfile
import nodeitems_utils
import shutil
from bpy.props import *
from nodeitems_utils import NodeCategory, NodeItem
from .shader_parameters import class_generate_properties
from .shader_parameters import node_add_inputs
from .shader_parameters import node_add_outputs
from .shader_parameters import socket_map
from .shader_parameters import txmake_options, update_conditional_visops
from .util import args_files_in_path
from .util import get_path_list
from .util import rib
from .util import debug
from .util import user_path
from .util import get_real_path
from .util import readOSO
from .cycles_convert import *
from operator import attrgetter, itemgetter
import os.path
from time import sleep
import traceback
NODE_LAYOUT_SPLIT = 0.5
group_nodes = ['ShaderNodeGroup', 'NodeGroupInput', 'NodeGroupOutput']
# Default Types
# update node during ipr for a socket default_value
def update_func(self, context):
# check if this prop is set on an input
node = self.node if hasattr(self, 'node') else self
from . import engine
if engine.is_ipr_running():
engine.ipr.issue_shader_edits(node=node)
# socket name corresponds to the param on the node
class RendermanSocket:
ui_open = BoolProperty(name='UI Open', default=True)
def get_pretty_name(self, node):
if node.bl_idname in group_nodes:
return self.name
else:
return self.identifier
def get_value(self, node):
if node.bl_idname in group_nodes or not hasattr(node, self.name):
return self.default_value
else:
return getattr(node, self.name)
def draw_color(self, context, node):
return (0.25, 1.0, 0.25, 1.0)
def draw_value(self, context, layout, node):
layout.prop(node, self.identifier)
def draw(self, context, layout, node, text):
if self.is_linked or self.is_output or self.hide_value or not hasattr(self, 'default_value'):
layout.label(self.get_pretty_name(node))
elif node.bl_idname in group_nodes or node.bl_idname == "PxrOSLPatternNode":
layout.prop(self, 'default_value',
text=self.get_pretty_name(node), slider=True)
else:
layout.prop(node, self.name,
text=self.get_pretty_name(node), slider=True)
class RendermanSocketInterface:
def draw_color(self, context):
return (0.25, 1.0, 0.25, 1.0)
def draw(self, context, layout):
layout.label(self.name)
def from_socket(self, node, socket):
if hasattr(self, 'default_value'):
self.default_value = socket.get_value(node)
self.name = socket.name
def init_socket(self, node, socket, data_path):
sleep(.01)
socket.name = self.name
if hasattr(self, 'default_value'):
socket.default_value = self.default_value
# socket types (need this just for the ui_open)
class RendermanNodeSocketFloat(bpy.types.NodeSocketFloat, RendermanSocket):
'''RenderMan float input/output'''
bl_idname = 'RendermanNodeSocketFloat'
bl_label = 'RenderMan Float Socket'
default_value = FloatProperty(update=update_func)
renderman_type = StringProperty(default='float')
def draw_color(self, context, node):
return (0.5, 0.5, 0.5, 1.0)
class RendermanNodeSocketInterfaceFloat(bpy.types.NodeSocketInterfaceFloat, RendermanSocketInterface):
'''RenderMan float input/output'''
bl_idname = 'RendermanNodeSocketInterfaceFloat'
bl_label = 'RenderMan Float Socket'
bl_socket_idname = 'RendermanNodeSocketFloat'
default_value = FloatProperty()
def draw_color(self, context):
return (0.5, 0.5, 0.5, 1.0)
class RendermanNodeSocketInt(bpy.types.NodeSocketInt, RendermanSocket):
'''RenderMan int input/output'''
bl_idname = 'RendermanNodeSocketInt'
bl_label = 'RenderMan Int Socket'
default_value = IntProperty(update=update_func)
renderman_type = StringProperty(default='int')
def draw_color(self, context, node):
return (1.0, 1.0, 1.0, 1.0)
class RendermanNodeSocketInterfaceInt(bpy.types.NodeSocketInterfaceInt, RendermanSocketInterface):
'''RenderMan float input/output'''
bl_idname = 'RendermanNodeSocketInterfaceInt'
bl_label = 'RenderMan Int Socket'
bl_socket_idname = 'RendermanNodeSocketInt'
default_value = IntProperty()
def draw_color(self, context):
return (1.0, 1.0, 1.0, 1.0)
class RendermanNodeSocketString(bpy.types.NodeSocketString, RendermanSocket):
'''RenderMan string input/output'''
bl_idname = 'RendermanNodeSocketString'
bl_label = 'RenderMan String Socket'
default_value = StringProperty(update=update_func)
is_texture = BoolProperty(default=False)
renderman_type = StringProperty(default='string')
class RendermanNodeSocketStruct(bpy.types.NodeSocketString, RendermanSocket):
'''RenderMan struct input/output'''
bl_idname = 'RendermanNodeSocketStruct'
bl_label = 'RenderMan Struct Socket'
hide_value = True
renderman_type = 'string'
default_value = ''
class RendermanNodeSocketInterfaceStruct(bpy.types.NodeSocketInterfaceString, RendermanSocketInterface):
'''RenderMan struct input/output'''
bl_idname = 'RendermanNodeSocketInterfaceStruct'
bl_label = 'RenderMan Struct Socket'
bl_socket_idname = 'RendermanNodeSocketStruct'
hide_value = True
class RendermanNodeSocketColor(bpy.types.NodeSocketColor, RendermanSocket):
'''RenderMan color input/output'''
bl_idname = 'RendermanNodeSocketColor'
bl_label = 'RenderMan Color Socket'
default_value = FloatVectorProperty(size=3,
subtype="COLOR", update=update_func)
renderman_type = StringProperty(default='color')
def draw_color(self, context, node):
return (1.0, 1.0, .5, 1.0)
class RendermanNodeSocketInterfaceColor(bpy.types.NodeSocketInterfaceColor, RendermanSocketInterface):
'''RenderMan color input/output'''
bl_idname = 'RendermanNodeSocketInterfaceColor'
bl_label = 'RenderMan Color Socket'
bl_socket_idname = 'RendermanNodeSocketColor'
default_value = FloatVectorProperty(size=3,
subtype="COLOR")
def draw_color(self, context):
return (1.0, 1.0, .5, 1.0)
class RendermanNodeSocketVector(RendermanSocket, bpy.types.NodeSocketVector):
'''RenderMan vector input/output'''
bl_idname = 'RendermanNodeSocketVector'
bl_label = 'RenderMan Vector Socket'
hide_value = True
default_value = FloatVectorProperty(size=3,
subtype="EULER", update=update_func)
renderman_type = StringProperty(default='vector')
def draw_color(self, context, node):
return (.25, .25, .75, 1.0)
class RendermanNodeSocketInterfaceVector(bpy.types.NodeSocketInterfaceVector, RendermanSocketInterface):
'''RenderMan color input/output'''
bl_idname = 'RendermanNodeSocketInterfaceVector'
bl_label = 'RenderMan Vector Socket'
bl_socket_idname = 'RendermanNodeSocketVector'
hide_value = True
default_value = FloatVectorProperty(size=3,
subtype="EULER")
def draw_color(self, context):
return (.25, .25, .75, 1.0)
# Custom socket type for connecting shaders
class RendermanShaderSocket(bpy.types.NodeSocketShader, RendermanSocket):
'''RenderMan shader input/output'''
bl_idname = 'RendermanShaderSocket'
bl_label = 'RenderMan Shader Socket'
hide_value = True
# Custom socket type for connecting shaders
class RendermanShaderSocketInterface(bpy.types.NodeSocketInterfaceShader, RendermanSocketInterface):
'''RenderMan shader input/output'''
bl_idname = 'RendermanShaderInterfaceSocket'
bl_label = 'RenderMan Shader Socket'
bl_socket_idname = 'RendermanShaderSocket'
hide_value = True
# Base class for all custom nodes in this tree type.
# Defines a poll function to enable instantiation.
class RendermanShadingNode(bpy.types.ShaderNode):
bl_label = 'Output'
def update_mat(self, mat):
if self.renderman_node_type == 'bxdf' and self.outputs['Bxdf'].is_linked:
mat.specular_color = [1, 1, 1]
mat.diffuse_color = [1, 1, 1]
mat.use_transparency = False
mat.specular_intensity = 0
mat.diffuse_intensity = 1
if hasattr(self, "baseColor"):
mat.diffuse_color = self.baseColor
elif hasattr(self, "emitColor"):
mat.diffuse_color = self.emitColor
elif hasattr(self, "diffuseColor"):
mat.diffuse_color = self.diffuseColor
elif hasattr(self, "midColor"):
mat.diffuse_color = self.midColor
elif hasattr(self, "transmissionColor"):
mat.diffuse_color = self.transmissionColor
elif hasattr(self, "frontColor"):
mat.diffuse_color = self.frontColor
# specular intensity
if hasattr(self, "specular"):
mat.specular_intensity = self.specular
elif hasattr(self, "SpecularGainR"):
mat.specular_intensity = self.specularGainR
elif hasattr(self, "reflectionGain"):
mat.specular_intensity = self.reflectionGain
# specular color
if hasattr(self, "specularColor"):
mat.specular_color = self.specularColor
elif hasattr(self, "reflectionColor"):
mat.specular_color = self.reflectionColor
if self.bl_idname in ["PxrGlassBxdfNode", "PxrLMGlassBxdfNode"]:
mat.use_transparency = True
mat.alpha = .5
if self.bl_idname == "PxrLMMetalBxdfNode":
mat.diffuse_color = [0, 0, 0]
mat.specular_intensity = 1
mat.specular_color = self.specularColor
mat.mirror_color = [1, 1, 1]
elif self.bl_idname == "PxrLMPlasticBxdfNode":
mat.specular_intensity = 1
# all the properties of a shader will go here, also inputs/outputs
# on connectable props will have the same name
# node_props = None
def draw_buttons(self, context, layout):
self.draw_nonconnectable_props(context, layout, self.prop_names)
if self.bl_idname == "PxrOSLPatternNode":
layout.operator("node.refresh_osl_shader")
def draw_buttons_ext(self, context, layout):
self.draw_nonconnectable_props(context, layout, self.prop_names)
def draw_nonconnectable_props(self, context, layout, prop_names):
if self.bl_idname in ['PxrLayerPatternNode', 'PxrSurfaceBxdfNode']:
col = layout.column(align=True)
for prop_name in prop_names:
if prop_name not in self.inputs:
for name in getattr(self, prop_name):
if name.startswith('enable'):
col.prop(self, name, text=prop_name.split('.')[-1])
break
return
if self.bl_idname == "PxrOSLPatternNode" or self.bl_idname == "PxrSeExprPatternNode":
prop = getattr(self, "codetypeswitch")
layout.prop(self, "codetypeswitch")
if getattr(self, "codetypeswitch") == 'INT':
prop = getattr(self, "internalSearch")
layout.prop_search(
self, "internalSearch", bpy.data, "texts", text="")
elif getattr(self, "codetypeswitch") == 'EXT':
prop = getattr(self, "shadercode")
layout.prop(self, "shadercode")
elif getattr(self, "codetypeswitch") == 'NODE':
layout.prop(self, "expression")
else:
# temp until we can create ramps natively
if self.plugin_name == 'PxrRamp':
nt = bpy.data.node_groups[self.node_group]
if nt:
layout.template_color_ramp(
nt.nodes["ColorRamp"], 'color_ramp')
for prop_name in prop_names:
prop_meta = self.prop_meta[prop_name]
if 'widget' in prop_meta and prop_meta['widget'] == 'null' or \
'hidden' in prop_meta and prop_meta['hidden']:
continue
if prop_name not in self.inputs:
if prop_meta['renderman_type'] == 'page':
ui_prop = prop_name + "_uio"
ui_open = getattr(self, ui_prop)
icon = 'DISCLOSURE_TRI_DOWN' if ui_open \
else 'DISCLOSURE_TRI_RIGHT'
split = layout.split(NODE_LAYOUT_SPLIT)
row = split.row()
row.prop(self, ui_prop, icon=icon, text='',
icon_only=True, emboss=False, slider=True)
row.label(prop_name.split('.')[-1] + ':')
if ui_open:
prop = getattr(self, prop_name)
self.draw_nonconnectable_props(
context, layout, prop)
elif "Subset" in prop_name and prop_meta['type'] == 'string':
layout.prop_search(self, prop_name, bpy.data.scenes[0].renderman,
"object_groups")
else:
layout.prop(self, prop_name, slider=True)
def copy(self, node):
pass
# self.inputs.clear()
# self.outputs.clear()
def RefreshNodes(self, context, nodeOR=None, materialOverride=None):
# Compile shader. If the call was from socket draw get the node
# information anther way.
if hasattr(context, "node"):
node = context.node
else:
node = nodeOR
prefs = bpy.context.user_preferences.addons[__package__].preferences
out_path = user_path(prefs.env_vars.out)
compile_path = os.path.join(user_path(prefs.env_vars.out), "shaders")
if os.path.exists(out_path):
pass
else:
os.mkdir(out_path)
if os.path.exists(os.path.join(out_path, "shaders")):
pass
else:
os.mkdir(os.path.join(out_path, "shaders"))
if getattr(node, "codetypeswitch") == "EXT":
osl_path = user_path(getattr(node, 'shadercode'))
FileName = os.path.basename(osl_path)
FileNameNoEXT = os.path.splitext(FileName)[0]
FileNameOSO = FileNameNoEXT
FileNameOSO += ".oso"
export_path = os.path.join(
user_path(prefs.env_vars.out), "shaders", FileNameOSO)
if os.path.splitext(FileName)[1] == ".oso":
out_file = os.path.join(user_path(prefs.env_vars.out), "shaders", FileNameOSO)
if not os.path.exists(out_file) or not os.path.samefile(osl_path, out_file):
shutil.copy(osl_path, out_file)
# Assume that the user knows what they were doing when they
# compiled the osl file.
ok = True
else:
ok = node.compile_osl(osl_path, compile_path)
elif getattr(node, "codetypeswitch") == "INT" and node.internalSearch:
script = bpy.data.texts[node.internalSearch]
osl_path = bpy.path.abspath(
script.filepath, library=script.library)
if script.is_in_memory or script.is_dirty or \
script.is_modified or not os.path.exists(osl_path):
osl_file = tempfile.NamedTemporaryFile(
mode='w', suffix=".osl", delete=False)
osl_file.write(script.as_string())
osl_file.close()
FileNameNoEXT = os.path.splitext(script.name)[0]
FileNameOSO = FileNameNoEXT
FileNameOSO += ".oso"
node.plugin_name = FileNameNoEXT
ok = node.compile_osl(osl_file.name, compile_path, script.name)
export_path = os.path.join(
user_path(prefs.env_vars.out), "shaders", FileNameOSO)
os.remove(osl_file.name)
else:
ok = node.compile_osl(osl_path, compile_path)
FileName = os.path.basename(osl_path)
FileNameNoEXT = os.path.splitext(FileName)[0]
node.plugin_name = FileNameNoEXT
FileNameOSO = FileNameNoEXT
FileNameOSO += ".oso"
export_path = os.path.join(
user_path(prefs.env_vars.out), "shaders", FileNameOSO)
else:
ok = False
debug("osl", "Shader cannot be compiled. Shader name not specified")
# If Shader compiled successfully then update node.
if ok:
debug('osl', "Shader Compiled Successfully!")
# Reset the inputs and outputs
node.outputs.clear()
node.inputs.clear()
# Read in new properties
prop_names, shader_meta = readOSO(export_path)
debug('osl', prop_names, "MetaInfo: ", shader_meta)
# Set node name to shader name
node.label = shader_meta["shader"]
node.plugin_name = shader_meta["shader"]
# Generate new inputs and outputs
setattr(node, 'shader_meta', shader_meta)
node.setOslProps(prop_names, shader_meta)
else:
debug("osl", "NODE COMPILATION FAILED")
def compile_osl(self, inFile, outPath, nameOverride=""):
if not nameOverride:
FileName = os.path.basename(inFile)
FileNameNoEXT = os.path.splitext(FileName)[0]
out_file = os.path.join(outPath, FileNameNoEXT)
out_file += ".oso"
else:
FileNameNoEXT = os.path.splitext(nameOverride)[0]
out_file = os.path.join(outPath, FileNameNoEXT)
out_file += ".oso"
ok = _cycles.osl_compile(inFile, out_file)
return ok
def update(self):
debug("info", "UPDATING: ", self.name)
@classmethod
def poll(cls, ntree):
if hasattr(ntree, 'bl_idname'):
return ntree.bl_idname == 'ShaderNodeTree'
else:
return True
def setOslProps(self, prop_names, shader_meta):
for prop_name in prop_names:
prop_type = shader_meta[prop_name]["type"]
if shader_meta[prop_name]["IO"] == "out":
self.outputs.new(
socket_map[prop_type], prop_name)
else:
prop_default = shader_meta[prop_name]["default"]
if prop_type == "float":
prop_default = float(prop_default)
elif prop_type == "int":
prop_default = int(float(prop_default))
if prop_type == "matrix":
self.inputs.new(socket_map["struct"], prop_name, prop_name)
elif prop_type == "void":
pass
elif 'lockgeom' in shader_meta[prop_name] and shader_meta[prop_name]['lockgeom'] == 0:
pass
else:
input = self.inputs.new(socket_map[shader_meta[prop_name]["type"]],
prop_name, prop_name)
input.default_value = prop_default
if prop_type == 'struct' or prop_type == 'point':
input.hide_value = True
input.renderman_type = prop_type
debug('osl', "Shader: ", shader_meta["shader"], "Properties: ",
prop_names, "Shader meta data: ", shader_meta)
compileLocation = self.name + "Compile"
class RendermanOutputNode(RendermanShadingNode):
bl_label = 'RenderMan Material'
renderman_node_type = 'output'
bl_icon = 'MATERIAL'
node_tree = None
def init(self, context):
input = self.inputs.new('RendermanShaderSocket', 'Bxdf')
input.type = 'SHADER'
input.hide_value = True
input = self.inputs.new('RendermanShaderSocket', 'Light')
input.hide_value = True
input = self.inputs.new('RendermanShaderSocket', 'Displacement')
input.hide_value = True
def draw_buttons(self, context, layout):
return
def draw_buttons_ext(self, context, layout):
return
# when a connection is made or removed see if we're in IPR mode and issue
# updates
def update(self):
from . import engine
if engine.is_ipr_running():
engine.ipr.last_edit_mat = None
engine.ipr.issue_shader_edits(nt=self.id_data)
# Final output node, used as a dummy to find top level shaders
class RendermanBxdfNode(RendermanShadingNode):
bl_label = 'Bxdf'
renderman_node_type = 'bxdf'
shading_compatibility = {'NEW_SHADING'}
class RendermanDisplacementNode(RendermanShadingNode):
bl_label = 'Displacement'
renderman_node_type = 'displacement'
# Final output node, used as a dummy to find top level shaders
class RendermanPatternNode(RendermanShadingNode):
bl_label = 'Texture'
renderman_node_type = 'pattern'
bl_type = 'TEX_IMAGE'
bl_static_type = 'TEX_IMAGE'
class RendermanLightNode(RendermanShadingNode):
bl_label = 'Output'
renderman_node_type = 'light'
# Generate dynamic types
def generate_node_type(prefs, name, args):
''' Dynamically generate a node type from pattern '''
nodeType = args.find("shaderType/tag").attrib['value']
typename = '%s%sNode' % (name, nodeType.capitalize())
nodeDict = {'bxdf': RendermanBxdfNode,
'pattern': RendermanPatternNode,
'displacement': RendermanDisplacementNode,
'light': RendermanLightNode}
if nodeType not in nodeDict.keys():
return
ntype = type(typename, (nodeDict[nodeType],), {})
ntype.bl_label = name
ntype.typename = typename
inputs = [p for p in args.findall('./param')] + \
[p for p in args.findall('./page')]
outputs = [p for p in args.findall('.//output')]
def init(self, context):
if self.renderman_node_type == 'bxdf':
self.outputs.new('RendermanShaderSocket', "Bxdf").type = 'SHADER'
#socket_template = self.socket_templates.new(identifier='Bxdf', name='Bxdf', type='SHADER')
node_add_inputs(self, name, self.prop_names)
node_add_outputs(self)
# if this is PxrLayerSurface set the diffusegain to 0. The default
# of 1 is unintuitive
if self.plugin_name == 'PxrLayerSurface':
self.diffuseGain = 0
elif self.renderman_node_type == 'light':
# only make a few sockets connectable
node_add_inputs(self, name, self.prop_names)
self.outputs.new('RendermanShaderSocket', "Light")
elif self.renderman_node_type == 'displacement':
# only make the color connectable
self.outputs.new('RendermanShaderSocket', "Displacement")
node_add_inputs(self, name, self.prop_names)
# else pattern
elif name == "PxrOSL":
self.outputs.clear()
else:
node_add_inputs(self, name, self.prop_names)
node_add_outputs(self)
if name == "PxrRamp":
node_group = bpy.data.node_groups.new(
'PxrRamp_nodegroup', 'ShaderNodeTree')
node_group.nodes.new('ShaderNodeValToRGB')
node_group.use_fake_user = True
self.node_group = node_group.name
update_conditional_visops(self)
def free(self):
if name == "PxrRamp":
bpy.data.node_groups.remove(bpy.data.node_groups[self.node_group])
ntype.init = init
ntype.free = free
if name == 'PxrRamp':
ntype.node_group = StringProperty('color_ramp', default='')
ntype.plugin_name = StringProperty(name='Plugin Name',
default=name, options={'HIDDEN'})
# lights cant connect to a node tree in 20.0
class_generate_properties(ntype, name, inputs + outputs)
if nodeType == 'light':
ntype.light_shading_rate = FloatProperty(
name="Light Shading Rate",
description="Shading Rate for this light. \
Leave this high unless detail is missing",
default=100.0)
ntype.light_primary_visibility = BoolProperty(
name="Light Primary Visibility",
description="Camera visibility for this light",
default=True)
bpy.utils.register_class(ntype)
return typename, ntype
# UI
def find_node_input(node, name):
for input in node.inputs:
if input.name == name:
return input
return None
def find_node(material, nodetype):
if material and material.node_tree:
ntree = material.node_tree
active_output_node = None
for node in ntree.nodes:
if getattr(node, "bl_idname", None) == nodetype:
if getattr(node, "is_active_output", True):
return node
if not active_output_node:
active_output_node = node
return active_output_node
return None
def find_node_input(node, name):
for input in node.inputs:
if input.name == name:
return input
return None
def panel_node_draw(layout, context, id_data, output_type, input_name):
ntree = id_data.node_tree
node = find_node(id_data, output_type)
if not node:
layout.label(text="No output node")
else:
input = find_node_input(node, input_name)
#layout.template_node_view(ntree, node, input)
draw_nodes_properties_ui(layout, context, ntree)
return True
def is_renderman_nodetree(material):
return find_node(material, 'RendermanOutputNode')
def draw_nodes_properties_ui(layout, context, nt, input_name='Bxdf',
output_node_type="output"):
output_node = next((n for n in nt.nodes
if hasattr(n, 'renderman_node_type') and n.renderman_node_type == output_node_type), None)
if output_node is None:
return
socket = output_node.inputs[input_name]
node = socket_node_input(nt, socket)
layout.context_pointer_set("nodetree", nt)
layout.context_pointer_set("node", output_node)
layout.context_pointer_set("socket", socket)
split = layout.split(0.35)
split.label(socket.name + ':')
if socket.is_linked:
# for lights draw the shading rate ui.
split.operator_menu_enum("node.add_%s" % input_name.lower(),
"node_type", text=node.bl_label)
else:
split.operator_menu_enum("node.add_%s" % input_name.lower(),
"node_type", text='None')
if node is not None:
draw_node_properties_recursive(layout, context, nt, node)
def socket_node_input(nt, socket):
return next((l.from_node for l in nt.links if l.to_socket == socket), None)
def socket_socket_input(nt, socket):
return next((l.from_socket for l in nt.links if l.to_socket == socket and socket.is_linked),
None)
def linked_sockets(sockets):
if sockets is None:
return []
return [i for i in sockets if i.is_linked]
def draw_node_properties_recursive(layout, context, nt, node, level=0):
def indented_label(layout, label, level):
for i in range(level):
layout.label('', icon='BLANK1')
if label:
layout.label(label)
layout.context_pointer_set("node", node)
layout.context_pointer_set("nodetree", nt)
def draw_props(prop_names, layout, level):
for prop_name in prop_names:
# skip showing the shape for PxrStdAreaLight
if prop_name in ["lightGroup", "rman__Shape", "coneAngle", "penumbraAngle"]:
continue
if prop_name == "codetypeswitch":
row = layout.row()
if node.codetypeswitch == 'INT':
row.prop_search(node, "internalSearch",
bpy.data, "texts", text="")
elif node.codetypeswitch == 'EXT':
row.prop(node, "shadercode")
elif prop_name == "internalSearch" or prop_name == "shadercode" or prop_name == "expression":
pass
else:
prop_meta = node.prop_meta[prop_name]
prop = getattr(node, prop_name)
if 'widget' in prop_meta and prop_meta['widget'] == 'null' or \
'hidden' in prop_meta and prop_meta['hidden']:
continue
# else check if the socket with this name is connected
socket = node.inputs[prop_name] if prop_name in node.inputs \
else None
layout.context_pointer_set("socket", socket)
if socket and socket.is_linked:
input_node = socket_node_input(nt, socket)
icon = 'DISCLOSURE_TRI_DOWN' if socket.ui_open \
else 'DISCLOSURE_TRI_RIGHT'
split = layout.split(NODE_LAYOUT_SPLIT)
row = split.row()
indented_label(row, None, level)
row.prop(socket, "ui_open", icon=icon, text='',
icon_only=True, emboss=False)
label = prop_meta.get('label', prop_name)
row.label(label + ':')
if ('type' in prop_meta and prop_meta['type'] == 'vstruct') or prop_name == 'inputMaterial':
split.operator_menu_enum("node.add_layer", "node_type",
text=input_node.bl_label, icon="LAYER_USED")
elif prop_meta['renderman_type'] == 'struct':
split.operator_menu_enum("node.add_manifold", "node_type",
text=input_node.bl_label, icon="LAYER_USED")
elif prop_meta['renderman_type'] == 'normal':
split.operator_menu_enum("node.add_bump", "node_type",
text=input_node.bl_label, icon="LAYER_USED")
else:
split.operator_menu_enum("node.add_pattern", "node_type",
text=input_node.bl_label, icon="LAYER_USED")
if socket.ui_open:
draw_node_properties_recursive(layout, context, nt,
input_node, level=level + 1)
else:
row = layout.row(align=True)
if prop_meta['renderman_type'] == 'page':
ui_prop = prop_name + "_uio"
ui_open = getattr(node, ui_prop)
icon = 'DISCLOSURE_TRI_DOWN' if ui_open \
else 'DISCLOSURE_TRI_RIGHT'
split = layout.split(NODE_LAYOUT_SPLIT)
row = split.row()
for i in range(level):
row.label('', icon='BLANK1')
row.prop(node, ui_prop, icon=icon, text='',
icon_only=True, emboss=False)
sub_prop_names = list(prop)
if node.bl_idname in {"PxrSurfaceBxdfNode", "PxrLayerPatternNode"}:
for pn in sub_prop_names:
if pn.startswith('enable'):
row.prop(node, pn, text='')
sub_prop_names.remove(pn)
break
row.label(prop_name.split('.')[-1] + ':')
if ui_open:
draw_props(sub_prop_names, layout, level + 1)
else:
indented_label(row, None, level)
# indented_label(row, socket.name+':')
# don't draw prop for struct type
if "Subset" in prop_name and prop_meta['type'] == 'string':
row.prop_search(node, prop_name, bpy.data.scenes[0].renderman,
"object_groups")
else:
if prop_meta['renderman_type'] != 'struct':
row.prop(node, prop_name, slider=True)
else:
row.label(prop_meta['label'])
if prop_name in node.inputs:
if ('type' in prop_meta and prop_meta['type'] == 'vstruct') or prop_name == 'inputMaterial':
row.operator_menu_enum("node.add_layer", "node_type",
text='', icon="LAYER_USED")
elif prop_meta['renderman_type'] == 'struct':
row.operator_menu_enum("node.add_manifold", "node_type",
text='', icon="LAYER_USED")
elif prop_meta['renderman_type'] == 'normal':
row.operator_menu_enum("node.add_bump", "node_type",
text='', icon="LAYER_USED")
else:
row.operator_menu_enum("node.add_pattern", "node_type",
text='', icon="LAYER_USED")
# if this is a cycles node do something different
if not hasattr(node, 'plugin_name') or node.bl_idname == 'PxrOSLPatternNode':
node.draw_buttons(context, layout)
for input in node.inputs:
if input.is_linked:
input_node = socket_node_input(nt, input)
icon = 'DISCLOSURE_TRI_DOWN' if input.show_expanded \
else 'DISCLOSURE_TRI_RIGHT'
split = layout.split(NODE_LAYOUT_SPLIT)
row = split.row()
indented_label(row, None, level)
row.prop(input, "show_expanded", icon=icon, text='',
icon_only=True, emboss=False)
row.label(input.name + ':')
split.operator_menu_enum("node.add_pattern", "node_type",
text=input_node.bl_label, icon="LAYER_USED")
if input.show_expanded:
draw_node_properties_recursive(layout, context, nt,
input_node, level=level + 1)
else:
row = layout.row(align=True)
indented_label(row, None, level)
# indented_label(row, socket.name+':')
# don't draw prop for struct type
if input.hide_value:
row.label(input.name)
else:
row.prop(input, 'default_value',
slider=True, text=input.name)
row.operator_menu_enum("node.add_pattern", "node_type",
text='', icon="LAYER_USED")
else:
if node.plugin_name == 'PxrRamp':
dummy_nt = bpy.data.node_groups[node.node_group]
if dummy_nt:
layout.template_color_ramp(
dummy_nt.nodes['ColorRamp'], 'color_ramp')
draw_props(node.prop_names, layout, level)
layout.separator()
# Operators
# connect the pattern nodes in some sensible manner (color output to color input etc)
# TODO more robust
def link_node(nt, from_node, in_socket):
out_socket = None
# first look for resultF/resultRGB
if type(in_socket).__name__ in ['RendermanNodeSocketColor',
'RendermanNodeSocketVector']:
out_socket = from_node.outputs.get('resultRGB',
next((s for s in from_node.outputs
if type(s).__name__ == 'RendermanNodeSocketColor'), None))
elif type(in_socket).__name__ == 'RendermanNodeSocketStruct':
out_socket = from_node.outputs.get('pxrMaterialOut', None)
if not out_socket:
out_socket = from_node.outputs.get('result', None)
else:
out_socket = from_node.outputs.get('resultF',
next((s for s in from_node.outputs
if type(s).__name__ == 'RendermanNodeSocketFloat'), None))
if out_socket:
nt.links.new(out_socket, in_socket)
# bass class for operator to add a node
class Add_Node:
'''
For generating cycles-style ui menus to add new nodes,
connected to a given input socket.
'''
def get_type_items(self, context):
items = []
# if this is a pattern input do columns!
if self.input_type.lower() == 'pattern':
i = 0
for pattern_cat, patterns in pattern_categories.items():
if pattern_cat.lower() in ['layer', 'script', 'manifold', 'bump', 'displace']:
continue
items.append(('', pattern_cat, pattern_cat, '', 0))
for nodename in sorted(patterns):
nodetype = patterns[nodename]
items.append((nodetype.typename, nodetype.bl_label,
nodetype.bl_label, '', i))
i += 1
items.append(('', '', '', '', 0))
items.append(('REMOVE', 'Remove',
'Remove the node connected to this socket', '', i + 1))
items.append(('DISCONNECT', 'Disconnect',
'Disconnect the node connected to this socket', '', i + 2))