def transform_rotate_quat_animated(cfg, quat0=(0, 0, -0.474, 0.880), quat1=(0, 0, 0, 0)):
cfg.aspect_ratio = (1, 1)
shape = _transform_shape(cfg)
anim = [
ngl.AnimKeyFrameQuat(0, quat0),
ngl.AnimKeyFrameQuat(cfg.duration / 2., quat1),
ngl.AnimKeyFrameQuat(cfg.duration, quat0),
]
return ngl.RotateQuat(shape, anim=ngl.AnimatedQuat(anim))
def quaternion(cfg):
'''Animated quaternion used to rotate a plane'''
cfg.duration = 10.
step = cfg.duration / 5.
x = math.sqrt(0.5)
quat_animkf = [
ngl.AnimKeyFrameQuat(0 * step, (0, 0, 0, 1)),
ngl.AnimKeyFrameQuat(1 * step, (0, 0,-x, x)),
ngl.AnimKeyFrameQuat(2 * step, (0, 1, 0, 0)),
ngl.AnimKeyFrameQuat(3 * step, (1, 0, 0, 0)),
ngl.AnimKeyFrameQuat(4 * step, (x, 0, 0, x)),
ngl.AnimKeyFrameQuat(5 * step, (0, 0, 0, 1)),
]
quat = ngl.AnimatedQuat(quat_animkf, as_mat4=True)
q = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
m = ngl.Media(cfg.medias[0].filename)
t = ngl.Texture2D(data_src=m)
p = ngl.Program(vertex=cfg.get_vert('uniform-mat4'))
render = ngl.Render(q, p)
render.update_textures(tex0=t)
render.update_uniforms(transformation_matrix=quat)
camera = ngl.Camera(render)
camera.set_eye(0.0, 0.0, 4.0)
camera.set_center(0.0, 0.0, 0.0)
camera.set_up(0.0, 1.0, 0.0)
camera.set_perspective(45.0, cfg.aspect_ratio_float)
camera.set_clipping(1.0, 10.0)
return camera
def quaternion(cfg):
"""Animated quaternion used to rotate a plane"""
cfg.duration = 10.0
step = cfg.duration / 5.0
x = math.sqrt(0.5)
quat_animkf = [
ngl.AnimKeyFrameQuat(0 * step, (0, 0, 0, 1)),
ngl.AnimKeyFrameQuat(1 * step, (0, 0, -x, x)),
ngl.AnimKeyFrameQuat(2 * step, (0, 1, 0, 0)),
ngl.AnimKeyFrameQuat(3 * step, (1, 0, 0, 0)),
ngl.AnimKeyFrameQuat(4 * step, (x, 0, 0, x)),
ngl.AnimKeyFrameQuat(5 * step, (0, 0, 0, 1)),
]
quat = ngl.AnimatedQuat(quat_animkf, as_mat4=True)
q = ngl.Quad((-1, -1, 0), (2, 0, 0), (0, 2, 0))
m = ngl.Media(cfg.medias[0].filename)
t = ngl.Texture2D(data_src=m)
p = ngl.Program(vertex=cfg.get_vert("uniform-mat4"),
fragment=cfg.get_frag("texture"))
p.update_vert_out_vars(var_normal=ngl.IOVec3(),
var_uvcoord=ngl.IOVec2(),
var_tex0_coord=ngl.IOVec2())
render = ngl.Render(q, p)
render.update_frag_resources(tex0=t)
render.update_vert_resources(transformation_matrix=quat)
camera = ngl.Camera(render)
camera.set_eye(0.0, 0.0, 4.0)
camera.set_center(0.0, 0.0, 0.0)
camera.set_up(0.0, 1.0, 0.0)
camera.set_perspective(45.0, cfg.aspect_ratio_float)
camera.set_clipping(1.0, 10.0)
return camera
# Query between times
values = [
anim.evaluate((t_id + 1) * scale) for t_id in range(nb_queries)
]
# Query boundaries and out of them (to trigger a copy instead of a mix)
values += [anim.evaluate(0)]
values += [anim.evaluate(1)]
values += [anim.evaluate(5)]
if hasattr(values[0], '__iter__'):
values = list(itertools.chain(*values))
ret.append(['off%d' % i] + values)
return ret
return test_func
_float_kf_func = lambda t, v, **kw: ngl.AnimKeyFrameFloat(t, v[0], **kw)
_vec2_kf_func = lambda t, v, **kw: ngl.AnimKeyFrameVec2(t, v, **kw)
_vec3_kf_func = lambda t, v, **kw: ngl.AnimKeyFrameVec3(t, v, **kw)
_vec4_kf_func = lambda t, v, **kw: ngl.AnimKeyFrameVec4(t, v, **kw)
_quat_kf_func = lambda t, v, **kw: ngl.AnimKeyFrameQuat(t, v, **kw)
anim_forward_float = _get_anim_func(1, ngl.AnimatedFloat, _float_kf_func)
anim_forward_vec2 = _get_anim_func(2, ngl.AnimatedVec2, _vec2_kf_func)
anim_forward_vec3 = _get_anim_func(3, ngl.AnimatedVec3, _vec3_kf_func)
anim_forward_vec4 = _get_anim_func(4, ngl.AnimatedVec4, _vec4_kf_func)
anim_forward_quat = _get_anim_func(4, ngl.AnimatedQuat, _quat_kf_func)