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	def shapes(x, y, shape=0):	def shapes(x, y, shape=0):
	if shape == 1:	if shape == 1:
	# ring	# ring
	x = x*2	x *= 2
	y = y*2	y *= 2
	s = (-cos(x2 + y2) / (x2 + y2 + 0.5))	s = (-cos(x2 + y2) / (x2 + y2 + 0.5))
	elif shape == 2:	elif shape == 2:
	# swirl	# swirl
	x = x * 2	x *= 2
	y = y * 2	y *= 2
	s = ((x * sin(x * x + y * y) + y * cos(x * x + y * y)) / (x2 + y2 + 0.5))	s = ((x * sin(x * x + y * y) + y * cos(x * x + y * y)) / (x2 + y2 + 0.5))
	elif shape == 3:	elif shape == 3:
	# bumps	# bumps
	x = x * 2	x *= 2
	y = y * 2	y *= 2
	s = ((cos(x * pi) + cos(y * pi)) - 0.5)	s = ((cos(x * pi) + cos(y * pi)) - 0.5)
	elif shape == 4:	elif shape == 4:
	# y grad.	# y grad.
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	value = value - sealevel	value = value - sealevel
	if(dist < radius):	if(dist < radius):
	dist = dist / radius	dist /= radius
	dist = (dist * dist * (3 - 2 * dist))	dist = (dist * dist * (3 - 2 * dist))
	value = (value - value * dist) + sealevel	value = (value - value * dist) + sealevel
	else:	else:
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	D = (i + sub_d) + 1	D = (i + sub_d) + 1
	face = (A, B, C, D)	face = (A, B, C, D)
	faces.append(face)	faces.append(face)
	count = count + 1	count += 1
	else:	else:
	count = 0	count = 0

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	D = (i + sub_d) + 1	D = (i + sub_d) + 1
	face = (A, B, C, D)	face = (A, B, C, D)
	faces.append(face)	faces.append(face)
	count = count + 1	count += 1
	else:	else:
	count = 0	count = 0

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