956a0fad80
Currently, there is no way to call the sculpt.mask_by_color operator from the python API without simulating mouse events. This makes writing python tests harder than it needs to be. This commit does the following: * Adds an exec callback for the mask_by_color operator. * Adds new `location` property, an int array defined in region space coordinates to represent the mouse location. * Extracts logic into a helper function so that the `invoke` and `exec` paths are functionally equivalent. Pull Request: https://projects.blender.org/blender/blender/pulls/134964
101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
import unittest
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import sys
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import pathlib
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import numpy as np
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import bpy
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"""
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blender -b --factory-startup --python tests/python/bl_sculpt.py -- --testdir tests/data/sculpting/
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"""
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args = None
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def set_view3d_context_override(context_override):
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"""
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Set context override to become the first viewport in the active workspace
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The ``context_override`` is expected to be a copy of an actual current context
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obtained by `context.copy()`
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"""
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for area in context_override["screen"].areas:
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if area.type != 'VIEW_3D':
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continue
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for space in area.spaces:
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if space.type != 'VIEW_3D':
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continue
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for region in area.regions:
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if region.type != 'WINDOW':
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continue
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context_override["area"] = area
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context_override["region"] = region
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class MaskByColorTest(unittest.TestCase):
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def setUp(self):
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bpy.ops.wm.open_mainfile(filepath=str(args.testdir / "plane_with_red_circle.blend"), load_ui=False)
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self.context_override = bpy.context.copy()
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set_view3d_context_override(self.context_override)
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bpy.ops.ed.undo_push()
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def test_off_grid_returns_cancelled(self):
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with bpy.context.temp_override(**self.context_override):
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location = (0, 0)
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ret_val = bpy.ops.sculpt.mask_by_color(location=location)
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self.assertEqual({'CANCELLED'}, ret_val)
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mesh = bpy.context.object.data
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self.assertFalse('.sculpt_mask' in mesh.attributes.keys(), "Mesh should not have the .sculpt_mask attribute!")
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def test_on_circle_masks_red_vertices(self):
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with bpy.context.temp_override(**self.context_override):
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location = (int(self.context_override['area'].width / 2), int(self.context_override['area'].height / 2))
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ret_val = bpy.ops.sculpt.mask_by_color(location=location)
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self.assertEqual({'FINISHED'}, ret_val)
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mesh = bpy.context.object.data
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color_attr = mesh.attributes['Color']
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mask_attr = mesh.attributes['.sculpt_mask']
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num_vertices = mesh.attributes.domain_size('POINT')
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color_data = np.zeros((num_vertices, 4), dtype=np.float32)
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color_attr.data.foreach_get('color', np.ravel(color_data))
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mask_data = np.zeros(num_vertices, dtype=np.float32)
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mask_attr.data.foreach_get('value', mask_data)
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for i in range(num_vertices):
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# If either of the green or blue components are less than 1 (i.e. the vertex is the red part of the image instead of
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# the white background), then that vertex should also be masked.
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if color_data[i][1] < 0.4 and color_data[i][2] < 0.4:
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self.assertTrue(mask_data[i] > 0.0, f"Vertex {i} should be masked ({color_data[i]}) -> {mask_data[i]}")
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else:
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self.assertTrue(mask_data[i] < 0.1,
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f"Vertex {i} should not be masked ({color_data[i]}) -> {mask_data[i]}")
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def main():
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global args
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import argparse
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argv = [sys.argv[0]]
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if '--' in sys.argv:
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argv += sys.argv[sys.argv.index('--') + 1:]
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parser = argparse.ArgumentParser()
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parser.add_argument('--testdir', required=True, type=pathlib.Path)
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args, remaining = parser.parse_known_args(argv)
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unittest.main(argv=remaining)
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if __name__ == "__main__":
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main()
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