-class Progress:
- def __init__(self):
- self.task = ""
- self.start = 0.0
- self.delta = 1.0
-
- def set_task(self, task, low, high):
- self.task = task
- self.start = low
- self.delta = high-low
- self.set_progress(0.0)
-
- def set_progress(self, value):
- pass
- #Blender.Window.DrawProgressBar(self.start+self.delta*value, self.task)
+def linear_to_srgb(l):
+ if l<0.0031308:
+ return 12.92*l
+ else:
+ 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 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)
+
+def compute_bounding_sphere(points):
+ p1 = max(((p, p.length) for p in points), key=lambda x:x[1])[0]
+ p2 = max(((p, (p-p1).length) for p in points), key=lambda x:x[1])[0]
+ center = (p1+p2)/2
+ radius = (p1-p2).length/2
+ for p in points:
+ d = p-center
+ if d.length>radius:
+ center += d*(1-radius/d.length)/2
+ radius = (radius+d.length)/2
+
+ return center, radius