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pyopengl example: avoid quadratic loop #14

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pyopengl example: avoid quadratic loop #14

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17 changes: 11 additions & 6 deletions examples/pyopengl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,22 +48,27 @@ def __init__(self, operation):
except RuntimeError as e:
raise RuntimeError(e)
sys.setrecursionlimit(recursionlimit)


pos_index = {}

for polygon in polygons:
n = polygon.plane.normal
indices = []
for v in polygon.vertices:
pos = [v.pos.x, v.pos.y, v.pos.z]
if not pos in self.vertices:
pos = (v.pos.x, v.pos.y, v.pos.z)
try:
index = pos_index[pos]
except KeyError:
index = len(pos_index)
pos_index[pos] = index
self.vertices.append(pos)
self.vnormals.append([])
index = self.vertices.index(pos)
indices.append(index)
self.vnormals[index].append(v.normal)
self.faces.append(indices)
self.normals.append([n.x, n.y, n.z])
self.colors.append(polygon.shared)

# setup vertex-normals
ns = []
for vns in self.vnormals:
Expand Down Expand Up @@ -124,7 +129,7 @@ def display():
glTranslatef(0.0, 0.0, -1.0);
glRotatef(rot, 1.0, 0.0, 0.0);
glRotatef(rot, 0.0, 0.0, 1.0);
rot += 0.1
rot += 0.02

renderable.render()

Expand Down