def render(self, dst):
t = clock()
sx, sy = self.grid_size
center = np.array([0.5*sx, 0.5*sy, 0.0])
phi = pi/3 + sin(t*3)*pi/8
c, s = cos(phi), sin(phi)
ofs = np.array([sin(1.2*t), cos(1.8*t), 0]) * sx * 0.2
eye_pos = center + np.array([cos(t)*c, sin(t)*c, s]) * 15.0 + ofs
target_pos = center + ofs
R, self.tvec = common.lookat(eye_pos, target_pos)
self.rvec = common.mtx2rvec(R)
self.draw_quads(dst, self.white_quads, (245, 245, 245))
self.draw_quads(dst, self.black_quads, (10, 10, 10))
def render(self, dst):
t = clock()
sx, sy = self.grid_size
center = np.array([0.5 * sx, 0.5 * sy, 0.0])
phi = pi / 3 + sin(t * 3) * pi / 8
c, s = cos(phi), sin(phi)
ofs = np.array([sin(1.2 * t), cos(1.8 * t), 0]) * sx * 0.2
eye_pos = center + np.array([cos(t) * c, sin(t) * c, s]) * 15.0 + ofs
target_pos = center + ofs
R, self.tvec = common.lookat(eye_pos, target_pos)
self.rvec = common.mtx2rvec(R)
self.draw_quads(dst, self.white_quads, (245, 245, 245))
self.draw_quads(dst, self.black_quads, (10, 10, 10))
def render(self, dst):
"""render the video"""
angle_t = self.angle_t
self.angle_t += 1.0/30.0
x_size, y_size = self.grid_size
center = np.array([0.5*x_size, 0.5*y_size, 0.0])
phi = pi/3 + sin(angle_t*3)*pi/8
cos_phi, sin_phi = cos(phi), sin(phi)
ofs = np.array([sin(1.2*angle_t), cos(1.8*angle_t), 0]) * x_size * 0.2
eye_pos = center + np.array([cos(angle_t)*cos_phi,
sin(angle_t)*cos_phi, sin_phi]) * 15.0 + ofs
target_pos = center + ofs
mtx, self.tvec = common.lookat(eye_pos, target_pos)
self.rvec = common.mtx2rvec(mtx)
self.draw_quads(dst, self.white_quads, (245, 245, 245))
self.draw_quads(dst, self.black_quads, (10, 10, 10))