forked from bartvdbraak/blender
03806d0b67
This commit implements described in the #104573. The goal is to fix the confusion of the submodule hashes change, which are not ideal for any of the supported git-module configuration (they are either always visible causing confusion, or silently staged and committed, also causing confusion). This commit replaces submodules with a checkout of addons and addons_contrib, covered by the .gitignore, and locale and developer tools are moved to the main repository. This also changes the paths: - /release/scripts are moved to the /scripts - /source/tools are moved to the /tools - /release/datafiles/locale is moved to /locale This is done to avoid conflicts when using bisect, and also allow buildbot to automatically "recover" wgen building older or newer branches/patches. Running `make update` will initialize the local checkout to the changed repository configuration. Another aspect of the change is that the make update will support Github style of remote organization (origin remote pointing to thy fork, upstream remote pointing to the upstream blender/blender.git). Pull Request #104755
116 lines
3.9 KiB
Python
116 lines
3.9 KiB
Python
import bpy
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from bpy_extras import view3d_utils
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def main(context, event):
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"""Run this function on left mouse, execute the ray cast"""
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# get the context arguments
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scene = context.scene
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region = context.region
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rv3d = context.region_data
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coord = event.mouse_region_x, event.mouse_region_y
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# get the ray from the viewport and mouse
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view_vector = view3d_utils.region_2d_to_vector_3d(region, rv3d, coord)
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ray_origin = view3d_utils.region_2d_to_origin_3d(region, rv3d, coord)
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ray_target = ray_origin + view_vector
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def visible_objects_and_duplis():
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"""Loop over (object, matrix) pairs (mesh only)"""
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depsgraph = context.evaluated_depsgraph_get()
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for dup in depsgraph.object_instances:
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if dup.is_instance: # Real dupli instance
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obj = dup.instance_object
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yield (obj, dup.matrix_world.copy())
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else: # Usual object
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obj = dup.object
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yield (obj, obj.matrix_world.copy())
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def obj_ray_cast(obj, matrix):
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"""Wrapper for ray casting that moves the ray into object space"""
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# get the ray relative to the object
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matrix_inv = matrix.inverted()
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ray_origin_obj = matrix_inv @ ray_origin
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ray_target_obj = matrix_inv @ ray_target
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ray_direction_obj = ray_target_obj - ray_origin_obj
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# cast the ray
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success, location, normal, face_index = obj.ray_cast(ray_origin_obj, ray_direction_obj)
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if success:
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return location, normal, face_index
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else:
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return None, None, None
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# cast rays and find the closest object
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best_length_squared = -1.0
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best_obj = None
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for obj, matrix in visible_objects_and_duplis():
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if obj.type == 'MESH':
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hit, normal, face_index = obj_ray_cast(obj, matrix)
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if hit is not None:
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hit_world = matrix @ hit
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scene.cursor.location = hit_world
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length_squared = (hit_world - ray_origin).length_squared
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if best_obj is None or length_squared < best_length_squared:
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best_length_squared = length_squared
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best_obj = obj
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# now we have the object under the mouse cursor,
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# we could do lots of stuff but for the example just select.
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if best_obj is not None:
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# for selection etc. we need the original object,
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# evaluated objects are not in viewlayer
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best_original = best_obj.original
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best_original.select_set(True)
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context.view_layer.objects.active = best_original
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class ViewOperatorRayCast(bpy.types.Operator):
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"""Modal object selection with a ray cast"""
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bl_idname = "view3d.modal_operator_raycast"
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bl_label = "RayCast View Operator"
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def modal(self, context, event):
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if event.type in {'MIDDLEMOUSE', 'WHEELUPMOUSE', 'WHEELDOWNMOUSE'}:
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# allow navigation
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return {'PASS_THROUGH'}
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elif event.type == 'LEFTMOUSE':
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main(context, event)
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return {'RUNNING_MODAL'}
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elif event.type in {'RIGHTMOUSE', 'ESC'}:
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return {'CANCELLED'}
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return {'RUNNING_MODAL'}
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def invoke(self, context, event):
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if context.space_data.type == 'VIEW_3D':
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context.window_manager.modal_handler_add(self)
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return {'RUNNING_MODAL'}
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else:
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self.report({'WARNING'}, "Active space must be a View3d")
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return {'CANCELLED'}
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def menu_func(self, context):
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self.layout.operator(ViewOperatorRayCast.bl_idname, text="Raycast View Modal Operator")
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# Register and add to the "view" menu (required to also use F3 search "Raycast View Modal Operator" for quick access).
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def register():
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bpy.utils.register_class(ViewOperatorRayCast)
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bpy.types.VIEW3D_MT_view.append(menu_func)
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def unregister():
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bpy.utils.unregister_class(ViewOperatorRayCast)
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bpy.types.VIEW3D_MT_view.remove(menu_func)
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if __name__ == "__main__":
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register()
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