def main():
# tetrahedron vertices and faces:
pt = 1 / np.sqrt(2)
points = [[1, 0, -pt], [-1, 0, -pt], [0, 1, pt], [0, -1, pt]]
faces = [[0, 1, 2], [0, 1, 3], [1, 2, 3], [0, 2, 3]]
# colors assigned to vertices
colors = [
[0.7, 0, 0],
[0, 0.7, 0],
[0, 0, 0.7],
[1, 1, 1],
]
rt = TkOptiX() # create and configure, show the window later
rt.set_param(min_accumulation_step=2, max_accumulation_frames=100)
rt.setup_camera("cam1",
cam_type="DoF",
eye=[1, -6, 4],
focal_scale=0.9,
fov=25)
rt.setup_light("light1", pos=[10, -9, -8], color=[14, 13, 12], radius=4)
rt.set_ambient([0.2, 0.3, 0.4])
# add mesh geometry to the scene
rt.set_mesh("m", points, faces, c=colors)
rt.start()
print("done")
def main():
# a mesh from pygmsh example:
with pygmsh.geo.Geometry() as geom:
poly = geom.add_polygon(
[
[+0.0, +0.5],
[-0.1, +0.1],
[-0.5, +0.0],
[-0.1, -0.1],
[+0.0, -0.5],
[+0.1, -0.1],
[+0.5, +0.0],
[+0.1, +0.1],
],
mesh_size=0.05,
)
geom.twist(
poly,
translation_axis=[0, 0, 1],
rotation_axis=[0, 0, 1],
point_on_axis=[0, 0, 0],
angle=np.pi / 3,
)
mesh = geom.generate_mesh()
rt = TkOptiX() # create and configure, show the window later
rt.set_param(min_accumulation_step=2, max_accumulation_frames=100)
rt.setup_camera("cam1",
cam_type="DoF",
eye=[0.5, -3, 2],
target=[0, 0, 0.5],
focal_scale=0.9,
fov=25)
rt.setup_light("light1", pos=[15, 0, 10], color=[8, 7, 6], radius=4)
rt.set_ambient([0.1, 0.15, 0.2])
# add mesh geometry to the scene
rt.set_mesh("m", mesh.points, mesh.cells_dict['triangle'])
rt.start()
print("done")
def main():
rt = TkOptiX() # create and configure, show the window later
rt.set_param(max_accumulation_frames=500) # accumulate up to 100 frames
rt.set_uint("path_seg_range", 6, 12) # allow some more ray segments
rt.set_background(0) # black background
rt.set_ambient([0.1, 0.12, 0.15]) # some ambient light
#rt.set_param(light_shading="Hard") # nice, accurate caustics, but slower convergence
exposure = 1; gamma = 2.2
rt.set_float("tonemap_exposure", exposure)
rt.set_float("tonemap_gamma", gamma)
rt.add_postproc("Gamma") # gamma correction
# setup materials:
m_diffuse["VarFloat3"] = { "base_color": [ 0.85, 0.87, 0.89 ] }
rt.update_material("diffuse", m_diffuse)
m_dispersive_glass["VarFloat3"]["base_color"] = [ 100, 110, 120 ]
rt.setup_material("glass", m_dispersive_glass)
# read the scene:
scene = trimesh.load("data/chemistry.glb")
# upload meshes to the ray tracer
for name in scene.geometry:
mesh = scene.geometry[name]
if name in ["bottle", "cap", "testtube"]:
rt.set_mesh(name, mesh.vertices, mesh.faces, mat="glass", make_normals=True)
else:
rt.set_mesh(name, mesh.vertices, mesh.faces)
# camera and light
rt.setup_light("light1", pos=[6,7.5,-15], color=30, radius=2)
rt.setup_camera("cam1", eye=[-2,5,-10], target=[-0.75,1.4,5], fov=23, glock=True)
rt.start()
print("done")
def main():
# a mesh from pygmsh example:
geom = pygmsh.built_in.Geometry()
# Draw a cross.
poly = geom.add_polygon(
[[0.0, 0.5, 0.0], [-0.1, 0.1, 0.0], [-0.5, 0.0, 0.0
], [-0.1, -0.1, 0.0],
[0.0, -0.5, 0.0], [0.1, -0.1, 0.0], [0.5, 0.0, 0.0], [0.1, 0.1, 0.0]],
lcar=0.05)
axis = [0, 0, 1]
geom.extrude(poly,
translation_axis=axis,
rotation_axis=axis,
point_on_axis=[0, 0, 0],
angle=2.0 / 6.0 * np.pi)
mesh = pygmsh.generate_mesh(geom)
rt = TkOptiX() # create and configure, show the window later
rt.set_param(min_accumulation_step=2, max_accumulation_frames=100)
rt.setup_camera("cam1",
cam_type="DoF",
eye=[0.5, -3, 2],
target=[0, 0, 0.5],
focal_scale=0.9,
fov=25)
rt.setup_light("light1", pos=[15, 0, 10], color=[8, 7, 6], radius=4)
rt.set_ambient([0.1, 0.15, 0.2])
# add mesh geometry to the scene
rt.set_mesh("m", mesh.points, mesh.cells_dict['triangle'])
rt.start()
print("done")