return (l.to_node, l.to_socket)
return (None, None)
+def check_group(node_tree, group, func):
+ output = group.node_tree.nodes["Group Output"]
+ from_node, _ = get_linked_node_and_socket(group.node_tree, output.inputs[0])
+ if from_node:
+ from_node, _ = func(group.node_tree, from_node)
+ if from_node and from_node.type=='GROUP_INPUT':
+ return get_linked_node_and_socket(node_tree, group.inputs[0])
+ return (None, None)
+
+def check_invert_green(node_tree, node):
+ if node.type=='GROUP':
+ return check_group(node_tree, node, check_invert_green)
+ elif node.type!='COMBRGB':
+ return (None, None)
+
+ green, g_sock = get_linked_node_and_socket(node_tree, node.inputs["G"])
+ if not green or green.type!='MATH' or green.operation!='SUBTRACT':
+ return (None, None)
+ green, g_sock = get_linked_node_and_socket(node_tree, green.inputs[1])
+
+ red, r_sock = get_linked_node_and_socket(node_tree, node.inputs["R"])
+ blue, b_sock = get_linked_node_and_socket(node_tree, node.inputs["B"])
+ if not red or red.type!='SEPRGB' or blue!=red or green!=red:
+ return (None, None)
+
+ return get_linked_node_and_socket(node_tree, red.inputs["Image"])
+
class MaterialProperty:
def __init__(self, keyword, tex_keyword, value):
self.keyword = keyword
self.value = value
self.texture = None
self.tex_usage = None
+ self.invert_green = False
def set_from_input(self, node_tree, input_socket, alpha_socket=None):
if self.keyword:
from_node, _ = get_linked_node_and_socket(node_tree, input_socket)
alpha_from = None
if from_node:
+ usage = None
if from_node.type=='NORMAL_MAP':
from_node, _ = get_linked_node_and_socket(node_tree, from_node.inputs["Color"])
+ invert, _ = check_invert_green(node_tree, from_node)
+ if invert:
+ from_node = invert
+ self.invert_green = True
+ usage = 'RGB'
elif from_node.type=='RGBTOBW':
from_node, _ = get_linked_node_and_socket(node_tree, from_node.inputs["Color"])
if from_node.type=='TEX_IMAGE':
self.texture = from_node
- if alpha_from:
+ if usage:
+ self.tex_usage = usage
+ elif alpha_from:
self.tex_usage = 'RGBA'
elif type(self.value)==tuple:
self.tex_usage = 'RGB'
base_color = self.create_property("base_color", (0.8, 0.8, 0.8, 1.0))
metalness = self.create_property("metalness", 0.0)
roughness = self.create_property("roughness", 0.5)
- normal = self.create_property("normal")
+ normal = self.create_property("normal_map")
emission = self.create_property("emission", (0.0, 0.0, 0.0))
base_color.set_from_input(material.node_tree, surface_node.inputs["Base Color"], surface_node.inputs["Alpha"])