Create app.py

app.py

@@ -0,0 +1,59 @@
+# # Top of main python script
+# import os
+# os.environ['PYOPENGL_PLATFORM'] = 'egl'
+
+# import pyrender
+# import numpy as np
+
+# r = pyrender.OffscreenRenderer(viewport_width=640,
+#                                 viewport_height=480,
+#                                 point_size=1.0)
+
+# cam = pyrender.PerspectiveCamera(yfov=np.pi / 3.0, aspectRatio=1.414)
+
+# scene = pyrender.Scene(ambient_light=[0.02, 0.02, 0.02],
+#                         bg_color=[1.0, 1.0, 1.0])
+
+# scene.add(cam, pose=np.eye(4))
+# color, depth = r.render(scene)
+
+# print(color)
+# print(depth)
+
+
+import os
+# switch to "osmesa" or "egl" before loading pyrender
+os.environ["PYOPENGL_PLATFORM"] = "egl"
+
+import numpy as np
+import pyrender
+import trimesh
+import matplotlib.pyplot as plt
+
+# generate mesh
+sphere = trimesh.creation.icosphere(subdivisions=4, radius=0.8)
+sphere.vertices+=1e-2*np.random.randn(*sphere.vertices.shape)
+mesh = pyrender.Mesh.from_trimesh(sphere, smooth=False)
+
+# compose scene
+scene = pyrender.Scene(ambient_light=[.1, .1, .3], bg_color=[0, 0, 0])
+camera = pyrender.PerspectiveCamera( yfov=np.pi / 3.0)
+light = pyrender.DirectionalLight(color=[1,1,1], intensity=2e3)
+
+scene.add(mesh, pose=  np.eye(4))
+scene.add(light, pose=  np.eye(4))
+
+c = 2**-0.5
+scene.add(camera, pose=[[ 1,  0,  0,  0],
+                        [ 0,  c, -c, -2],
+                        [ 0,  c,  c,  2],
+                        [ 0,  0,  0,  1]])
+
+# render scene
+r = pyrender.OffscreenRenderer(512, 512)
+color, _ = r.render(scene)
+
+plt.figure(figsize=(8,8))
+plt.imshow(color)
+
+plt.savefig("test.png")