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import pycuda.autoinit
import unittest
from chroma.bvh import make_simple_bvh, BVH
from chroma.bvh.bvh import node_area
import chroma.models
import numpy as np
#from numpy.testing import assert_array_max_ulp, assert_array_equal, \
# assert_approx_equal
def build_simple_bvh(degree):
mesh = chroma.models.lionsolid()
bvh = make_simple_bvh(mesh, degree)
nodes = bvh.nodes
layer_bounds = np.append(bvh.layer_offsets, len(nodes))
world_coords = bvh.world_coords
for i, (layer_start, layer_end) in enumerate(zip(layer_bounds[:-1],
layer_bounds[1:])):
print i, node_area(nodes[layer_start:layer_end]) * world_coords.world_scale**2
assert isinstance(bvh, BVH)
def test_simple():
yield build_simple_bvh, 2
yield build_simple_bvh, 3
yield build_simple_bvh, 4
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