def show(object: WorldObject, up=None):
"""Visualize a given WorldObject in a new window with an interactive camera.
Parameters:
object (WorldObject): The object to show.
up (Vector3): Optional. Configure the up vector for the camera controls.
"""
from wgpu.gui.auto import WgpuCanvas, run
if isinstance(object, Scene):
scene = object
else:
scene = Scene()
scene.add(object)
background = Background(None,
BackgroundMaterial((0, 1, 0, 1), (0, 1, 1, 1)))
scene.add(background)
camera = PerspectiveCamera(70, 16 / 9)
look_at = camera.show_object(object)
canvas = WgpuCanvas()
renderer = WgpuRenderer(canvas)
controls = OrbitControls(camera.position.clone(), look_at, up=up)
controls.add_default_event_handlers(canvas, camera)
def animate():
controls.update_camera(camera)
renderer.render(scene, camera)
canvas.request_draw(animate)
run()
geometry = gfx.torus_knot_geometry(1, 0.3, 128, 16)
material1 = gfx.MeshPhongMaterial(color=(0.5, 0.5, 0.5, 1.0))
material2 = gfx.MeshSliceMaterial(thickness=8,
color=(1, 1, 0, 1),
plane=(0, 0, 1, 0))
obj1 = gfx.Mesh(geometry, material1)
obj2 = gfx.Mesh(geometry, material2)
scene.add(obj1)
scene.add(obj2)
camera = gfx.PerspectiveCamera(70, 2)
camera.position.z = 4
def animate():
dist = material2.plane[3]
dist += 0.02
if dist > 1:
dist = -1.5
material2.plane = 1, 0, 1, dist
renderer.render(scene, camera)
canvas.request_draw()
if __name__ == "__main__":
canvas.request_draw(animate)
run()
scene.add(plane1, plane2, plane3)
camera = gfx.OrthographicCamera(100, 100)
@canvas.add_event_handler("key_down")
def handle_event(event):
if event["key"] == " ":
print("Rotating scene element order")
scene.add(scene.children[0])
canvas.request_draw()
elif event["key"] in "0123456789":
m = [
None,
"opaque",
"ordered1",
"ordered2",
"weighted",
"weighted_depth",
"weighted_plus",
]
mode = m[int(event["key"])]
renderer.blend_mode = mode
print("Selecting blend_mode", mode)
if __name__ == "__main__":
print(__doc__)
canvas.request_draw(lambda: renderer.render(scene, camera))
run()
[+1, +1, 0]],
np.float32,
)
geometry2 = gfx.Geometry(positions=positions * 250)
material2 = gfx.LineMaterial(thickness=5.0, color=(0.8, 0.0, 0.2, 1.0))
line = gfx.Line(geometry2, material2)
scene.add(line)
camera = gfx.PerspectiveCamera(70, 16 / 9)
camera.position.z = 400
# Define animation functions. Each renders the scene into its own canvas.
def animate_a():
rot = gfx.linalg.Quaternion().set_from_euler(gfx.linalg.Euler(0.005, 0.01))
cube.rotation.multiply(rot)
renderer_a.render(scene, camera)
canvas_a.request_draw()
def animate_b():
renderer_b.render(scene, camera)
canvas_b.request_draw()
if __name__ == "__main__":
canvas_a.request_draw(animate_a)
canvas_b.request_draw(animate_b)
run()
