Closed
Description
Bug Description
When closing example_render_opengl.py on Windows, the following is printed:
Exception ignored in: <function ShapeInstancer.__del__ at 0x000001C3E893F060>
Traceback (most recent call last):
File "C:\Users\nvidia\warp\warp\render\render_opengl.py", line 694, in __del__
ImportError: sys.meta_path is None, Python is likely shutting down
Similarly, the following example from @christophercrouzet will have a similar message at exit:
import numpy as np
import warp as wp
import warp.render
BOX_POINTS = np.array(
(
( 0.853553, -0.146446, 0.0 ), ( 0.146446, -0.853553, 0.0 ),
( 0.353553, 0.353553, 0.707106), (-0.353553, -0.353553, 0.707106),
(-0.353553, -0.353553, -0.707106), ( 0.353553, 0.353553, -0.707106),
(-0.853553, 0.146446, 0.0 ), (-0.146446, 0.853553, 0.0 ),
),
dtype=np.float32,
)
BOX_FACE_VERTEX_INDICES = np.array(
(
0, 3, 1, 0, 2, 3, 4, 7, 5, 4, 6, 7, 6, 2, 7, 6, 3, 2,
5, 1, 4, 5, 0, 1, 5, 2, 0, 5, 7, 2, 1, 6, 4, 1, 3, 6,
),
dtype=np.int32,
)
resolution = (512, 384)
num_frames = 24
fps = 24
camera_pos = (0.0, 2.5, 5.0)
camera_front = (0.0, -0.5, -1.0)
renderer = warp.render.OpenGLRenderer(
fps=fps,
screen_width=resolution[0],
screen_height=resolution[1],
camera_pos=camera_pos,
camera_front=camera_front,
vsync=True,
)
rng = np.random.default_rng(123)
for frame in range(num_frames):
color = wp.sin(float(frame) * 0.05) * 0.5 + 0.5
renderer.begin_frame(frame / num_frames)
renderer.render_mesh(
"box",
BOX_POINTS,
BOX_FACE_VERTEX_INDICES,
colors=(color, 0.5, 0.5),
)
renderer.end_frame()
renderer.close()
System Information
Windows only