+ return 1.055*(l**(1/2.4))-0.055
+
+def get_colormap(srgb):
+ if srgb:
+ return linear_to_srgb
+ else:
+ return lambda x: x
+
+def basename(path):
+ if path.startswith("//"):
+ path = path[2:]
+ return os.path.basename(path)
+
+def make_unique(values):
+ seen = set()
+ result = []
+ for i in values:
+ if i not in seen:
+ result.append(i)
+ seen.add(i)
+ return result
+
+def get_linked_node_and_socket(node_tree, socket):
+ for l in node_tree.links:
+ if socket==l.to_socket:
+ return (l.from_node, l.from_socket)
+ elif socket==l.from_socket:
+ return (l.to_node, l.to_socket)
+ return (None, None)