STK-BLENDER

[LLS_forum]

The problem is that the particle system breaks down strangely and systematically. @Alayan
I have a backup method that's not very practical but functional (thanks to Sven, without him it would have taken me 3 months to decide to do it XD)

   

   

   

   

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Code:

# Keep a copy for any changes
# The copy must have activated "Switch to point instance enabled" for "GeoNodeParticle".

import bpy, subprocess, pprint, random
subprocess.run("clear")

obj_particle = bpy.context.selected_objects
n_point = [] # data (object_point/location/rotation/scale/proxy)

def separate_point():
    bpy.ops.object.mode_set(mode='EDIT')
    bpy.ops.mesh.separate(type='LOOSE')
    bpy.ops.object.mode_set(mode='OBJECT')
    bpy.ops.object.origin_set(type='ORIGIN_GEOMETRY')

def check_n_point():
    for i, obj in enumerate(bpy.context.selected_objects, 1):
        rotation = 0
        scale = 1
        location = (obj.location.x, obj.location.y, obj.location.z)
        n_point.append([obj, location, rotation, scale])
    pprint.pprint(n_point)

def new_scale():       
    for i in n_point:
        a = random.uniform(0.6, 1)
        i[3] = a

def new_rotation():
    for i in n_point:
        a = random.uniform(-6.28319, 6.28319)
        i[2] = a

def attribute_proxy_to_point(obj):
    bpy.ops.object.select_all(action='DESELECT')
    bpy.ops.object.select_pattern(pattern=obj, case_sensitive=True, extend=False)
    fix = 1
    for n in range(len(n_point)):
        copy = bpy.ops.object.duplicate_move(OBJECT_OT_duplicate={"linked":True, "mode":'TRANSLATION'}, TRANSFORM_OT_translate={"value":(0, 0, 0), "orient_type":'GLOBAL', "orient_matrix":((0, 0, 0), (0, 0, 0), (0, 0, 0)), "orient_matrix_type":'GLOBAL', "constraint_axis":(False, False, False), "mirror":False, "use_proportional_edit":False, "proportional_edit_falloff":'SMOOTH', "proportional_size":1, "use_proportional_connected":False, "use_proportional_projected":False, "snap":False, "snap_elements":{'INCREMENT'}, "use_snap_project":False, "snap_target":'CLOSEST', "use_snap_self":True, "use_snap_edit":True, "use_snap_nonedit":True, "use_snap_selectable":False, "snap_point":(0, 0, 0), "snap_align":False, "snap_normal":(0, 0, 0), "gpencil_strokes":False, "cursor_transform":False, "texture_space":False, "remove_on_cancel":False, "view2d_edge_pan":False, "release_confirm":False, "use_accurate":False, "use_automerge_and_split":False})
        n_point[n].append(bpy.data.objects[obj+"."+str(fix).zfill(3)])
        fix += 1
    for i in n_point:
        i[4].location = i[0].location
       
def modify_rotation_proxy():
    for i in n_point:
        i[4].rotation_euler.z = i[2]

def modify_scale_proxy():
    for i in n_point:
        i[4].scale.xyz = i[3]

def clear_point():
    for i in n_point:
        obj = bpy.data.objects.get(i[0].name)
        if obj:
            bpy.ops.object.select_all(action='DESELECT')
            obj.select_set(True)
            bpy.context.view_layer.objects.active = obj
            bpy.ops.object.delete()
    for i in n_point:
        obj = bpy.data.objects.get(i[4].name)
        if obj:
            obj.name = obj.name+"-geo-node"

separate_point()
check_n_point()
new_scale()
new_rotation()
attribute_proxy_to_point("boxe22") # Name of your object
modify_rotation_proxy()
modify_scale_proxy()
clear_point()

#pprint.pprint(n_point)