def question_one():
print('1. What happens when you invert the identity matrix?')
print('You get this:')
m = Matrix.identity_matrix().submatrix(3, 3)
m = m.inverse()
for row in m.matrix:
print(row)
print('The Identity matrix again :)\n')
def __init__(self, hsize, vsize, field_of_view):
self.hsize = hsize
self.vsize = vsize
self.field_of_view = field_of_view
self.transform = Matrix.identity_matrix()
# Calculate pixel size, pixel width, pixel height
self.fov_radians = math.radians(field_of_view)
half_view = math.tan(self.fov_radians / 2)
aspect = hsize / vsize
if aspect >= 1:
self.half_width = half_view
self.half_height = half_view / aspect
else:
self.half_width = half_view * aspect
self.half_height = half_view
self.pixel_size = (self.half_width * 2) / self.hsize
def __init__(self, parent=None):
# Converts itself from shape -> world space
self.transform = Matrix.identity_matrix()
self.material = Material()
self.parent = parent
self.id = id(self)
def step_impl(context):
assert context.t == Matrix.identity_matrix(), 't != identity_matrix'
def step_impl(context, attribute):
obj = getattr(context, attribute)
expected = Matrix.identity_matrix()
result = obj.transform
assert expected == result, f'Tranform:{result} != identity_matrix'
def __init__(self):
self.transform = Matrix.identity_matrix()