uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/bpycv/bpycv-test.py

@@ -0,0 +1,76 @@
+# based on https://github.com/DIYer22/bpycv/blob/c576e01622d87eb3534f73bf1a5686bd2463de97/example/ycb_demo.py
+import bpy
+import bpycv
+
+import os
+import glob
+import random
+
+example_data_dir = os.environ['BPY_EXAMPLE_DATA']
+
+models = sorted(glob.glob(os.path.join(example_data_dir, "model", "*", "*.obj")))
+cat_id_to_model_path = dict(enumerate(sorted(models), 1))
+
+distractors = sorted(glob.glob(os.path.join(example_data_dir, "distractor", "*.obj")))
+
+bpycv.clear_all()
+bpy.context.scene.frame_set(1)
+bpy.context.scene.render.engine = "CYCLES"
+bpy.context.scene.cycles.samples = 32
+bpy.context.scene.render.resolution_y = 1024
+bpy.context.scene.render.resolution_x = 1024
+
+# A transparency stage for holding rigid body
+stage = bpycv.add_stage(transparency=True)
+
+bpycv.set_cam_pose(cam_radius=1, cam_deg=45)
+
+hdri_dir = os.path.join(example_data_dir, "background_and_light")
+hdri_manager = bpycv.HdriManager(
+    hdri_dir=hdri_dir, download=False
+)  # if download is True, will auto download .hdr file from HDRI Haven
+hdri_path = hdri_manager.sample()
+bpycv.load_hdri_world(hdri_path, random_rotate_z=True)
+
+# load 5 objects
+for index in range(5):
+    cat_id = random.choice(list(cat_id_to_model_path))
+    model_path = cat_id_to_model_path[cat_id]
+    obj = bpycv.load_obj(model_path)
+    obj.location = (
+        random.uniform(-0.2, 0.2),
+        random.uniform(-0.2, 0.2),
+        random.uniform(0.1, 0.3),
+    )
+    obj.rotation_euler = [random.uniform(-3.1415, 3.1415) for _ in range(3)]
+    # set each instance a unique inst_id, which is used to generate instance annotation.
+    obj["inst_id"] = cat_id * 1000 + index
+    with bpycv.activate_obj(obj):
+        bpy.ops.rigidbody.object_add()
+
+# load 6 distractors
+for index in range(6):
+    distractor_path = random.choice(distractors)
+    target_size = random.uniform(0.1, 0.3)
+    distractor = bpycv.load_distractor(distractor_path, target_size=target_size)
+    distractor.location = (
+        random.uniform(-0.2, 0.2),
+        random.uniform(-0.2, 0.2),
+        random.uniform(0.1, 0.3),
+    )
+    distractor.rotation_euler = [random.uniform(-3.1415, 3.1415) for _ in range(3)]
+    with bpycv.activate_obj(distractor):
+        bpy.ops.rigidbody.object_add()
+
+# run pyhsic engine for 20 frames
+for i in range(20):
+    bpy.context.scene.frame_set(bpy.context.scene.frame_current + 1)
+
+# render image, instance annoatation and depth in one line code
+result = bpycv.render_data()
+
+dataset_dir = "./dataset"
+result.save(dataset_dir=dataset_dir, fname="0", save_blend=True)
+print(f'Save to "{dataset_dir}"')
+print(f'Open "{dataset_dir}/vis/" to see visualize result.')
+