X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=blender%2Fio_mspgl%2Fmaterial.py;h=3b79036181d0d45ab6af0da226ef39cecb59e2d6;hb=fb5f83c2e3f8f8a6a6444a33bec15e9477a487d1;hp=0c021c2227a9b2a8f704148d33a52fbe453c993d;hpb=bc1675de82ea5c4a07bea4c5afa9c59c497464d2;p=libs%2Fgl.git

diff --git a/blender/io_mspgl/material.py b/blender/io_mspgl/material.py
index 0c021c22..3b790361 100644
--- a/blender/io_mspgl/material.py
+++ b/blender/io_mspgl/material.py
@@ -20,7 +20,7 @@ class MaterialProperty:
 				self.value = input_socket.default_value[:len(self.value)-1]+(alpha_socket.default_value,)
 			else:
 				self.value = input_socket.default_value[:len(self.value)]
-		else:
+		elif self.value is not None:
 			self.value = input_socket.default_value
 
 		from_node, _ = get_linked_node_and_socket(node_tree, input_socket)
@@ -48,12 +48,8 @@ class MaterialProperty:
 class Material:
 	def __init__(self, material):
 		self.name = material.name
-
-		self.base_color = MaterialProperty((0.8, 0.8, 0.8, 1.0))
-		self.metalness = MaterialProperty(0.0)
-		self.roughness = MaterialProperty(0.5)
-		self.normal = MaterialProperty((0.0, 0.0, 0.1))
-		self.emission = MaterialProperty((0.0, 0.0, 0.0))
+		self.type = None
+		self.properties = {}
 
 		self.render_mode = material.render_mode
 		self.technique = material.technique
@@ -75,20 +71,28 @@ class Material:
 
 		surface_node, _ = get_linked_node_and_socket(material.node_tree, out_node.inputs["Surface"])
 		if not surface_node:
-			raise Exception("Material has no surface node")
+			if self.render_mode=='BUILTIN':
+				raise Exception("Empty material can't use builtin rendering mode")
+			return
 		elif surface_node.type!='BSDF_PRINCIPLED':
 			raise Exception("Unsupported surface node type "+surface_node.type)
 
-		self.base_color.set_from_input(material.node_tree, surface_node.inputs["Base Color"], surface_node.inputs["Alpha"])
-		self.metalness.set_from_input(material.node_tree, surface_node.inputs["Metallic"])
-		self.roughness.set_from_input(material.node_tree, surface_node.inputs["Roughness"])
-		self.normal.set_from_input(material.node_tree, surface_node.inputs["Normal"])
-		self.emission.set_from_input(material.node_tree, surface_node.inputs["Emission"])
+		self.type = "pbr"
+
+		base_color = self.properties["base_color"] = MaterialProperty((0.8, 0.8, 0.8, 1.0))
+		metalness = self.properties["metalness"] = MaterialProperty(0.0)
+		roughness = self.properties["roughness"] = MaterialProperty(0.5)
+		normal = self.properties["normal"] = MaterialProperty(None)
+		emission = self.properties["emission"] = MaterialProperty((0.0, 0.0, 0.0))
 
-		self.properties = (self.base_color, self.metalness, self.roughness, self.normal, self.emission)
+		base_color.set_from_input(material.node_tree, surface_node.inputs["Base Color"], surface_node.inputs["Alpha"])
+		metalness.set_from_input(material.node_tree, surface_node.inputs["Metallic"])
+		roughness.set_from_input(material.node_tree, surface_node.inputs["Roughness"])
+		normal.set_from_input(material.node_tree, surface_node.inputs["Normal"])
+		emission.set_from_input(material.node_tree, surface_node.inputs["Emission"])
 
 		sampler_settings = None
-		for p in self.properties:
+		for p in self.properties.values():
 			if p.texture:
 				settings = (p.texture.default_filter, p.texture.interpolation, p.texture.use_mipmap, p.texture.max_anisotropy)
 				if sampler_settings is None: