def add_points_as_object_with_particle_system(
points,
reconstruction_collection,
mesh_type="CUBE",
point_extent=0.01,
add_particle_color_emission=True,
particle_overwrite_color=None,
op=None,
):
"""Add a point cloud as particle system."""
log_report("INFO", "Adding Points as Particle System: ...", op)
stop_watch = StopWatch()
# The particle systems in Blender do not work for large particle numbers
# (see https://developer.blender.org/T81103). Thus, we represent large
# point clouds with multiple smaller particle systems.
max_number_particles = 10000
particle_system_collection = add_collection("Particle System",
reconstruction_collection)
point_cloud_obj_list = []
for i in range(0, len(points), max_number_particles):
particle_obj_name = f"Particle Shape {i}"
particle_material_name = f"Point Cloud Material {i}"
point_cloud_obj_name = f"Particle Point Cloud {i}"
points_subset = points[i:i + max_number_particles]
coords, colors = Point.split_points(points_subset,
normalize_colors=True)
particle_obj = _add_particle_obj(
colors,
particle_obj_name,
particle_material_name,
particle_overwrite_color,
add_particle_color_emission,
mesh_type,
point_extent,
particle_system_collection,
)
point_cloud_obj = _add_particle_system_obj(
coords,
particle_obj,
point_cloud_obj_name,
particle_system_collection,
)
point_cloud_obj_list.append(point_cloud_obj)
bpy.context.view_layer.update()
log_report("INFO", "Duration: " + str(stop_watch.get_elapsed_time()), op)
log_report("INFO", "Adding Points as Particle System: Done", op)
return point_cloud_obj_list
def draw_points(
points,
add_points_to_point_cloud_handle,
reconstruction_collection=None,
object_anchor_handle_name="OpenGL Point Cloud",
op=None,
):
"""Draw points using OpenGL."""
log_report("INFO", "Add particle draw handlers", op)
coords, colors = Point.split_points(points, normalize_colors=True)
object_anchor_handle = _draw_coords_with_color(
coords,
colors,
add_points_to_point_cloud_handle,
reconstruction_collection,
object_anchor_handle_name,
op=op,
)
return object_anchor_handle
def draw_points(
op,
points,
add_points_to_point_cloud_handle,
reconstruction_collection=None,
object_anchor_handle_name="OpenGL Point Cloud",
):
log_report("INFO", "Add particle draw handlers", op)
coords, colors = Point.split_points(points)
object_anchor_handle = draw_coords_with_color(
op,
coords,
colors,
add_points_to_point_cloud_handle,
reconstruction_collection,
object_anchor_handle_name,
)
return object_anchor_handle
def add_points_as_mesh_vertices(
points,
reconstruction_collection,
add_color_as_custom_property=True,
op=None,
):
"""Add a point cloud as mesh."""
log_report("INFO", "Adding Points as Mesh: ...", op)
stop_watch = StopWatch()
point_cloud_obj_name = "Mesh Point Cloud"
point_cloud_mesh = bpy.data.meshes.new(point_cloud_obj_name)
point_cloud_mesh.update()
point_cloud_mesh.validate()
coords, colors = Point.split_points(points, normalize_colors=False)
point_cloud_mesh.from_pydata(coords, [], [])
point_cloud_obj = add_obj(point_cloud_mesh, point_cloud_obj_name,
reconstruction_collection)
if add_color_as_custom_property:
point_cloud_obj["colors"] = colors
log_report("INFO", "Duration: " + str(stop_watch.get_elapsed_time()), op)
log_report("INFO", "Adding Points as Mesh: Done", op)
return point_cloud_obj
