Zufalls-Funktion in beiden Addons + Zusatz-Ebenen + Form-statt-Groesse

Rock Generator 2.5.0:
- "Zufaellig"-Button: wuerfelt Seed und Form-Parameter, "Streuung" steuert die
  Abweichung von den aktuellen Werten (0 = nur neuer Seed). Optional werden auch
  Basis-Form und Noise-Typ gewuerfelt. Werte werden auf ihre Grenzen geklemmt.
- Skalierung streut jetzt die FORM, nicht die Groesse: nicht-uniform ist Default,
  und "Gesamtgroesse konstant halten" normiert das geometrische Mittel auf 1.
  Gemessen ueber 6 Rocks: Volumen-Spanne 1.92x -> 1.11x. Wichtig, weil EcoGame
  die Groesse zusaetzlich ueber ScaleMin/Max streut.

Tree Generator 1.19.0:
- "Zufaellig"-Button: neuer Seed plus Streuung auf Hoehe, Radius, Biegung,
  Ast-Anzahl/-Laenge, Kronenform und Wurzelanlauf. Preset-Charakter bleibt, weil
  relativ zu den aktuellen Werten gestreut wird (gemessen: Hoehe 6.65 -> 8.34 m).
- "_Leaf"- und "_Frucht"-Ebenen: leere Objekte mit IDENTISCHEM Ursprung neben dem
  Baum (gemessen: Abstand 0.000000), damit die Ebenen in UE deckungsgleich sitzen.

Vier Test-Suiten liegen jetzt unter tests/ statt nur im Scratchpad.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

README.md

@@ -180,6 +180,17 @@ Referenz:
 blender --background --python tests/test_rock_gen.py
 ```
 
+Weitere Suiten (jeweils `blender --background --python <datei>`):
+
+| Datei | prueft |
+|---|---|
+| `tests/test_tree_addon.py` | Tree-Addon: Presets, Wachstums-Stufen, UVs, Modifier-Apply |
+| `tests/test_ecogame_rock.py` | Fels-Benennung, Bake liefert nur `_albedo`/`_normal`, AO im Albedo |
+| `tests/test_ecogame_tree.py` | Baum-Benennung `<Art>_<Variante>_S<Stufe>`, Ursprung, Lightmap-Default |
+| `tests/test_randomize.py` | Zufalls-Funktion beider Addons, `_Leaf`/`_Frucht` mit gleichem Ursprung |
+
+Die Suiten erwarten die gebauten Zips in `dist/` bzw. lesen die `.py` direkt.
+
 Erzeugt 3 Rocks, prueft je Rock: keine losen Vertices, manifold, Normalen nach
 aussen (signed volume > 0), UV0 + UV1 vorhanden, und gibt eine Zusammenfassung
 (Vertex-/Face-Count) aus. Exit-Code 0 = alles bestanden, 1 = Fehler.

blender_manifest.toml

@@ -1,7 +1,7 @@
 schema_version = "1.0.0"
 
 id = "stylized_rock_generator"
-version = "2.4.0"
+version = "2.5.0"
 name = "Stylized Rock Generator"
 tagline = "Batch-Generator fuer stylized Rocks mit UE5-Export"
 maintainer = "D4rkst3r"

blender_manifest_tree.toml

@@ -1,7 +1,7 @@
 schema_version = "1.0.0"
 
 id = "stylized_tree_generator"
-version = "1.18.0"
+version = "1.19.0"
 name = "Stylized Tree Generator"
 tagline = "Parametrische Baeume, Palmen, Bueschen mit Wachstums-Stufen"
 maintainer = "D4rkst3r"

dist/index.json

@@ -7,7 +7,7 @@
       "id": "stylized_rock_generator",
       "name": "Stylized Rock Generator",
       "tagline": "Batch-Generator fuer stylized Rocks mit UE5-Export",
-      "version": "2.4.0",
+      "version": "2.5.0",
       "type": "add-on",
       "maintainer": "D4rkst3r",
       "license": [
@@ -23,16 +23,16 @@
         "Mesh",
         "Modeling"
       ],
-      "archive_url": "./stylized_rock_generator-2.4.0.zip",
+      "archive_url": "./stylized_rock_generator-2.5.0.zip",
-      "archive_size": 16036,
+      "archive_size": 16991,
-      "archive_hash": "sha256:e7163f6f0c53731f897b8a1ba63db1cdab94aa182dd720ca1a5653a2ca3df9ec"
+      "archive_hash": "sha256:f89c740398afb7550ccc109980be6d9ea9d785ccc9383e70aa8c7d7cb89006bd"
     },
     {
       "schema_version": "1.0.0",
       "id": "stylized_tree_generator",
       "name": "Stylized Tree Generator",
       "tagline": "Parametrische Baeume, Palmen, Bueschen mit Wachstums-Stufen",
-      "version": "1.18.0",
+      "version": "1.19.0",
       "type": "add-on",
       "maintainer": "D4rkst3r",
       "license": [
@@ -48,9 +48,9 @@
         "Mesh",
         "Modeling"
       ],
-      "archive_url": "./stylized_tree_generator-1.18.0.zip",
+      "archive_url": "./stylized_tree_generator-1.19.0.zip",
-      "archive_size": 16777,
+      "archive_size": 17827,
-      "archive_hash": "sha256:9ea5b7a9c01f3c1b382436d25539ab9ec41ffb8b051d26c17c82783c594680a0"
+      "archive_hash": "sha256:37f6a0be381178144b36a731b68f8d307c18c714e0d9b2cd9f1c109e4b4de8e6"
     }
   ]
 }

stylized_rock_generator.py

@@ -1,7 +1,7 @@
 bl_info = {
     "name": "Stylized Rock Generator",
     "author": "D4rkst3r",
-    "version": (2, 4, 0),
+    "version": (2, 5, 0),
     "blender": (4, 2, 0),
     "location": "View3D > Sidebar > Rock Gen",
     "description": (
@@ -51,7 +51,7 @@ PRESET_KEYS = (
     "batch_count", "spacing",
     "shading_mode", "autosmooth_angle",
     "randomize_shape", "noise_scale_max", "displace_strength_max", "nonuniform_scale",
-    "flatten_bottom", "flatten_ratio", "set_origin_bottom",
+    "flatten_bottom", "flatten_ratio", "set_origin_bottom", "keep_size",
 )
 
 # Eingebaute Presets (nicht ueberschreibbar/loeschbar).
@@ -410,9 +410,17 @@ def _apply_random_transform(context, obj, settings, rng):
         return
     lo, hi = sorted((settings.scale_min, settings.scale_max))
     if settings.nonuniform_scale:
-        obj.scale = (rng.uniform(lo, hi), rng.uniform(lo, hi), rng.uniform(lo, hi))
+        sx, sy, sz = (rng.uniform(lo, hi), rng.uniform(lo, hi), rng.uniform(lo, hi))
+        if settings.keep_size:
+            # Geometrisches Mittel auf 1.0 normieren: die Proportionen streuen,
+            # das Volumen bleibt. Sonst multipliziert sich die Streuung mit den
+            # ScaleMin/Max der Engine.
+            g = (abs(sx) * abs(sy) * abs(sz)) ** (1.0 / 3.0)
+            if g > 1e-6:
+                sx, sy, sz = sx / g, sy / g, sz / g
+        obj.scale = (sx, sy, sz)
     else:
-        s = rng.uniform(lo, hi)
+        s = 1.0 if settings.keep_size else rng.uniform(lo, hi)
         obj.scale = (s, s, s)
     obj.rotation_euler = (
         rng.uniform(0.0, TWO_PI),
@@ -727,9 +735,16 @@ class RockGenSettings(PropertyGroup):
     scale_min: FloatProperty(name="Scale Min", default=0.8, min=0.1, max=5.0)
     scale_max: FloatProperty(name="Scale Max", default=1.2, min=0.1, max=5.0)
     nonuniform_scale: BoolProperty(
-        name="Nicht-uniforme Skalierung", default=False,
+        name="Nicht-uniforme Skalierung", default=True,
         description="Skaliert jede Achse einzeln (flache Platten vs. runde Brocken)",
     )
+    keep_size: BoolProperty(
+        name="Gesamtgroesse konstant halten", default=True,
+        description=("Normiert die Achsen-Faktoren, sodass nur die FORM streut und nicht "
+                     "die Groesse. Wichtig fuer EcoGame: die Engine streut die Groesse "
+                     "zusaetzlich ueber ScaleMin/Max - beides zusammen multipliziert sich "
+                     "und erzeugt sonst Mini- und Riesen-Exemplare"),
+    )
 
     # --- Batch ---
     batch_count: IntProperty(name="Anzahl Rocks", default=5, min=1, max=500)
@@ -819,6 +834,17 @@ class RockGenSettings(PropertyGroup):
         description="Exportiert nur die aktuell selektierten Rocks statt aller",
     )
 
+    # --- Zufall ---
+    random_amount: FloatProperty(
+        name="Streuung", default=0.35, min=0.0, max=1.0,
+        description=("Wie stark 'Zufaellig' die Werte veraendert. 0 = nur neuer Seed, "
+                     "1 = volle Bandbreite"),
+    )
+    random_shape: BoolProperty(
+        name="Auch Basis-Form/Noise-Typ", default=False,
+        description="Wuerfelt zusaetzlich Cube/Ico-Sphere und den Noise-Typ",
+    )
+
     # --- Presets ---
     active_preset: EnumProperty(name="Preset", items=_preset_items)
     new_preset_name: StringProperty(name="Preset-Name", default="")
@@ -1277,6 +1303,43 @@ class OBJECT_OT_bake_rock_textures(Operator):
 # Operatoren: Presets
 # ---------------------------------------------------------------------------
 
+class ROCKGEN_OT_randomize(Operator):
+    bl_idname = "rockgen.randomize"
+    bl_label = "Zufaellig"
+    bl_description = ("Wuerfelt Seed und Form-Parameter neu. 'Streuung' bestimmt, wie "
+                      "weit von den aktuellen Werten abgewichen wird")
+    bl_options = {'REGISTER', 'UNDO'}
+
+    def execute(self, context):
+        s = context.scene.rock_gen_settings
+        rng = random.Random()
+        a = s.random_amount
+
+        def jitter(prop, lo, hi):
+            """Wert um +-a in Richtung der Grenzen ziehen, dann clampen."""
+            cur = getattr(s, prop)
+            span = (hi - lo) * a
+            val = cur + rng.uniform(-span, span)
+            setattr(s, prop, max(lo, min(hi, val)))
+
+        s.seed = rng.randint(0, 9999)
+        jitter("noise_scale", 0.4, 3.0)
+        jitter("displace_strength", 0.12, 0.7)
+        jitter("decimate_ratio_1", 0.12, 0.45)
+        jitter("decimate_ratio_2", 0.3, 0.7)
+        jitter("dissolve_angle", 2.0, 10.0)
+        jitter("subsurf_levels", 3, 5)
+        s.subsurf_levels = int(round(s.subsurf_levels))
+        if s.randomize_shape:
+            jitter("noise_scale_max", 0.6, 4.0)
+            jitter("displace_strength_max", 0.2, 0.9)
+        if s.random_shape:
+            s.base_shape = rng.choice(['CUBE', 'ICOSPHERE'])
+            s.texture_type = rng.choice(['VORONOI', 'CLOUDS', 'DISTORTED_NOISE'])
+        self.report({'INFO'}, "Neue Zufallswerte (Seed %d)." % s.seed)
+        return {'FINISHED'}
+
+
 class ROCKGEN_OT_preset_save(Operator):
     bl_idname = "rockgen.preset_save"
     bl_label = "Preset speichern"
@@ -1452,6 +1515,7 @@ class VIEW3D_PT_rock_generator(Panel):
         row.prop(settings, "scale_min")
         row.prop(settings, "scale_max")
         box.prop(settings, "nonuniform_scale")
+        box.prop(settings, "keep_size")
 
         box = layout.box()
         box.label(text="Batch")
@@ -1462,6 +1526,13 @@ class VIEW3D_PT_rock_generator(Panel):
         sub.enabled = settings.use_modal
         sub.prop(settings, "modal_threshold")
 
+        box = layout.box()
+        box.label(text="Zufall", icon='FILE_REFRESH')
+        row = box.row(align=True)
+        row.prop(settings, "random_amount")
+        row.prop(settings, "random_shape", text="", icon='MOD_NOISE')
+        box.operator("rockgen.randomize", icon='FILE_REFRESH')
+
         layout.separator()
         layout.operator("object.generate_rocks_batch", icon='MESH_ICOSPHERE')
 
@@ -1500,6 +1571,7 @@ classes = (
     OBJECT_OT_generate_rocks,
     OBJECT_OT_export_rocks_fbx,
     OBJECT_OT_bake_rock_textures,
+    ROCKGEN_OT_randomize,
     ROCKGEN_OT_preset_save,
     ROCKGEN_OT_preset_load,
     ROCKGEN_OT_preset_delete,

stylized_tree_generator.py

@@ -1,7 +1,7 @@
 bl_info = {
     "name": "Stylized Tree Generator",
     "author": "D4rkst3r",
-    "version": (1, 18, 0),
+    "version": (1, 19, 0),
     "blender": (4, 2, 0),
     "location": "View3D > Sidebar > Tree Gen",
     "description": "Parametrischer Baum-/Palmen-/Busch-Generator (Geometry Nodes) mit Wachstums-Stufen",
@@ -992,6 +992,21 @@ class TreeGenSettings(PropertyGroup):
         description="Laufende Variante derselben Art (Birke_01, Birke_02 ...)",
     )
     spacing: FloatProperty(name="Abstand", default=4.0, min=0.0, max=20.0)
+    random_amount: FloatProperty(
+        name="Streuung", default=0.3, min=0.0, max=1.0,
+        description=("Wie stark 'Zufaellig' die Werte veraendert. 0 = nur neuer Seed, "
+                     "1 = volle Bandbreite. Der Preset-Charakter bleibt erhalten"),
+    )
+    make_leaf: BoolProperty(
+        name="_Leaf-Ebene anlegen", default=False,
+        description=("Legt pro Baum ein leeres Objekt <Name>_Leaf mit GLEICHEM Ursprung "
+                     "an. Dort modellierst du die Krone - in UE sitzen beide Ebenen "
+                     "dadurch deckungsgleich"),
+    )
+    make_frucht: BoolProperty(
+        name="_Frucht-Ebene anlegen", default=False,
+        description="Zusaetzlich <Name>_Frucht (gleicher Ursprung) fuer die Frucht-Ebene",
+    )
     apply_modifier: BoolProperty(
         name="Modifier anwenden", default=False,
         description="Ergebnis als normales Mesh einfrieren (fuer den Export)",
@@ -1038,6 +1053,45 @@ def _add_lightmap_uv(context, ob, op):
         ob.data.uv_layers[0].active_render = True
 
 
+def _add_layer(context, ob, suffix):
+    """Leeres Mesh-Objekt mit IDENTISCHEM Ursprung neben dem Baum anlegen.
+
+    Gleicher Ursprung ist der Punkt: in UE muessen Stamm, Krone und Fruechte
+    deckungsgleich sitzen, sonst verrutscht die Krone gegenueber dem Stamm.
+    """
+    name = ob.name + suffix
+    old = bpy.data.objects.get(name)
+    if old:
+        bpy.data.objects.remove(old, do_unlink=True)
+    me = bpy.data.meshes.new(name)
+    new = bpy.data.objects.new(name, me)
+    context.collection.objects.link(new)
+    new.location = ob.location.copy()
+    new.rotation_euler = ob.rotation_euler.copy()
+    new.scale = ob.scale.copy()
+    return new
+
+
+class TREEGEN_OT_randomize(Operator):
+    bl_idname = "object.treegen_randomize"
+    bl_label = "Zufaellig"
+    bl_description = ("Wuerfelt Seed und Form-Parameter neu, ohne den Preset-Charakter "
+                      "zu verlieren. 'Streuung' bestimmt die Abweichung")
+    bl_options = {'REGISTER', 'UNDO'}
+
+    def execute(self, context):
+        s = context.scene.tree_gen_settings
+        import random as _r
+        rng = _r.Random()
+        s.seed = rng.randint(0, 9999)
+        # Die Form-Parameter liegen am Modifier, nicht an den Settings. Deshalb
+        # merken wir uns die Streuung und wenden sie beim Erzeugen an.
+        s["_rand_jitter"] = s.random_amount
+        self.report({'INFO'}, "Neuer Seed %d, Streuung %.0f%%."
+                    % (s.seed, s.random_amount * 100))
+        return {'FINISHED'}
+
+
 class TREEGEN_OT_create(Operator):
     bl_idname = "object.treegen_create"
     bl_label = "Baum erzeugen"
@@ -1075,6 +1129,30 @@ class TREEGEN_OT_create(Operator):
             self.report({'ERROR'}, "Erzeugen fehlgeschlagen: %s" % exc)
             return {'CANCELLED'}
 
+        # Streuung auf die Form-Regler anwenden (Preset-Charakter bleibt)
+        amt = float(s.get("_rand_jitter", 0.0))
+        if amt > 0.0:
+            import random as _r
+            rng = _r.Random(s.seed)
+            ids = socket_ids(ng)
+            JITTER = {"Height": 0.35, "Trunk Radius": 0.25, "Bend": 0.5,
+                      "Branch Count": 0.3, "Branch Length": 0.35,
+                      "Branch Up": 0.3, "Branch Bend": 0.4,
+                      "Crown Taper": 0.3, "Crown Bulge": 0.3,
+                      "Root Flare": 0.4, "Root Lobes": 0.3}
+            for ob in created:
+                md = ob.modifiers.get("GN_Tree")
+                if md is None:
+                    continue
+                for key, rel in JITTER.items():
+                    sid = ids.get(key)
+                    if sid is None:
+                        continue
+                    cur = md[sid]
+                    f = 1.0 + rng.uniform(-rel, rel) * amt
+                    md[sid] = type(cur)(round(cur * f)) if isinstance(cur, int) else cur * f
+            context.view_layer.update()
+
         if s.apply_modifier:
             for ob in created:
                 context.view_layer.objects.active = ob
@@ -1087,6 +1165,15 @@ class TREEGEN_OT_create(Operator):
                 if s.generate_lightmap_uv:
                     _add_lightmap_uv(context, ob, self)
 
+        if s.make_leaf or s.make_frucht:
+            extra = []
+            for ob in created:
+                if s.make_leaf:
+                    extra.append(_add_layer(context, ob, "_Leaf"))
+                if s.make_frucht:
+                    extra.append(_add_layer(context, ob, "_Frucht"))
+            created.extend(extra)
+
         context.view_layer.update()
         total = 0
         dg = context.evaluated_depsgraph_get()
@@ -1129,6 +1216,16 @@ class VIEW3D_PT_tree_generator(Panel):
         sub.prop(s, "stages")
         sub.prop(s, "spacing")
 
+        box = layout.box()
+        box.label(text="Zufall", icon='FILE_REFRESH')
+        box.prop(s, "random_amount")
+        box.operator("object.treegen_randomize", icon='FILE_REFRESH')
+
+        box = layout.box()
+        box.label(text="Zusatz-Ebenen")
+        box.prop(s, "make_leaf")
+        box.prop(s, "make_frucht")
+
         box = layout.box()
         box.label(text="Export")
         box.prop(s, "apply_modifier")
@@ -1143,6 +1240,7 @@ class VIEW3D_PT_tree_generator(Panel):
 
 classes = (
     TreeGenSettings,
+    TREEGEN_OT_randomize,
     TREEGEN_OT_create,
     VIEW3D_PT_tree_generator,
 )

tests/test_ecogame_rock.py

@@ -0,0 +1,51 @@
+import bpy, sys, importlib.util, os, glob, tempfile, numpy as np
+ADDON=r"A:\eco\stylized_rock_generator\stylized_rock_generator.py"
+spec=importlib.util.spec_from_file_location("srg",ADDON)
+m=importlib.util.module_from_spec(spec); sys.modules["srg"]=m; spec.loader.exec_module(m)
+try: m.unregister()
+except Exception: pass
+m.register()
+fails=[]
+s=bpy.context.scene.rock_gen_settings
+for o in list(bpy.data.objects): bpy.data.objects.remove(o, do_unlink=True)
+
+# --- Namensschema ---
+s.batch_count=3; s.subsurf_levels=3; s.use_modal=False; s.generate_lods=False
+s.name_prefix="Fels"; s.name_form="a"; s.name_class='L'
+bpy.ops.object.generate_rocks_batch()
+names=sorted(o.name for o in bpy.context.scene.objects if o.type=='MESH')
+print("NAMEN:", names)
+if not all(n.startswith("Fels_A_L") for n in names): fails.append("naming")
+
+# Einzeln (ohne Nummer)
+for o in list(bpy.data.objects): bpy.data.objects.remove(o,do_unlink=True)
+s.batch_count=1
+bpy.ops.object.generate_rocks_batch()
+single=[o.name for o in bpy.context.scene.objects if o.type=='MESH']
+print("EINZELN:", single)
+if single and single[0]!="Fels_A_L": fails.append("naming_single")
+print("LIGHTMAP-DEFAULT aus:", not m.RockGenSettings.bl_rna.properties['generate_lightmap_uv'].default)
+
+# --- Bake: nur _albedo + _normal, AO drin ---
+out=tempfile.mkdtemp()
+s.bake_dir=out; s.bake_prefix="fels_a"; s.bake_resolution='512'
+s.bake_color=True; s.bake_normal=True; s.bake_roughness=False; s.bake_ao=False
+def run(ao_on, strength=1.0):
+    for f in glob.glob(os.path.join(out,"*.png")): os.remove(f)
+    s.bake_ao_into_albedo=ao_on; s.bake_ao_strength=strength
+    bpy.ops.object.bake_rock_textures()
+    files=sorted(os.path.basename(f) for f in glob.glob(os.path.join(out,"*.png")))
+    img=bpy.data.images.load(os.path.join(out,"fels_a_albedo.png"))
+    px=np.array(img.pixels[:],dtype=np.float32).reshape(-1,4)[:,:3]
+    bpy.data.images.remove(img)
+    return files, float(px.mean()), float(px.std())
+f_on, mean_on, std_on = run(True)
+f_off, mean_off, std_off = run(False)
+print("DATEIEN:", f_on)
+print("AO an : mean=%.4f std=%.4f" % (mean_on, std_on))
+print("AO aus: mean=%.4f std=%.4f" % (mean_off, std_off))
+if f_on != ["fels_a_albedo.png","fels_a_normal.png"]: fails.append("dateinamen")
+if not (mean_on < mean_off): fails.append("ao_nicht_eingerechnet")
+m.unregister()
+print("ERGEBNIS:", "ALLE CHECKS OK" if not fails else "FEHLER: "+", ".join(fails))
+sys.exit(1 if fails else 0)

tests/test_ecogame_tree.py

@@ -0,0 +1,39 @@
+import bpy, sys, importlib.util
+ADDON=r"A:\eco\stylized_rock_generator\stylized_tree_generator.py"
+spec=importlib.util.spec_from_file_location("stg",ADDON)
+m=importlib.util.module_from_spec(spec); sys.modules["stg"]=m; spec.loader.exec_module(m)
+try: m.unregister()
+except Exception: pass
+m.register()
+fails=[]
+for o in list(bpy.data.objects): bpy.data.objects.remove(o,do_unlink=True)
+s=bpy.context.scene.tree_gen_settings
+
+print("LIGHTMAP-Default aus:", not m.TreeGenSettings.bl_rna.properties['generate_lightmap_uv'].default)
+if m.TreeGenSettings.bl_rna.properties['generate_lightmap_uv'].default: fails.append("lightmap_default")
+
+# Wachstums-Stufen mit Art-Name
+s.preset='birke'; s.art_name="Birke"; s.variant=1
+s.use_growth=True; s.stages=4; s.apply_modifier=False
+bpy.ops.object.treegen_create()
+names=sorted(o.name for o in bpy.context.scene.objects if o.type=='MESH')
+print("STUFEN:", names)
+if names != ["Birke_01_S1","Birke_01_S2","Birke_01_S3","Birke_01_S4"]: fails.append("stufen_namen")
+
+# Einzelbaum, Art aus Preset abgeleitet
+for o in list(bpy.data.objects): bpy.data.objects.remove(o,do_unlink=True)
+s.use_growth=False; s.art_name=""; s.preset='eiche'; s.variant=2
+bpy.ops.object.treegen_create()
+single=[o.name for o in bpy.context.scene.objects if o.type=='MESH']
+print("EINZELN:", single)
+if single != ["Eiche_02"]: fails.append("einzel_name")
+
+# Ursprung unten-mittig + echte Meter
+ob=bpy.context.scene.objects[single[0]]
+ev=ob.evaluated_get(bpy.context.evaluated_depsgraph_get())
+zs=[v.co.z for v in ev.data.vertices]
+print("URSPRUNG z=%.3f  min_z=%.3f  Hoehe=%.2f m" % (ob.location.z, min(zs), max(zs)-min(zs)))
+if abs(min(zs)) > 0.02: fails.append("ursprung")
+m.unregister()
+print("ERGEBNIS:", "ALLE CHECKS OK" if not fails else "FEHLER: "+", ".join(fails))
+sys.exit(1 if fails else 0)

tests/test_randomize.py

@@ -0,0 +1,64 @@
+import bpy, sys, importlib.util
+fails=[]
+
+# ---------- ROCK ----------
+spec=importlib.util.spec_from_file_location("srg", r"A:\eco\stylized_rock_generator\stylized_rock_generator.py")
+r=importlib.util.module_from_spec(spec); sys.modules["srg"]=r; spec.loader.exec_module(r)
+try: r.unregister()
+except Exception: pass
+r.register()
+s=bpy.context.scene.rock_gen_settings
+before=(s.seed, round(s.noise_scale,3), round(s.displace_strength,3), round(s.decimate_ratio_1,3))
+s.random_amount=0.5
+bpy.ops.rockgen.randomize()
+after=(s.seed, round(s.noise_scale,3), round(s.displace_strength,3), round(s.decimate_ratio_1,3))
+print("ROCK vorher:", before)
+print("ROCK nachher:", after)
+if before==after: fails.append("rock_randomize_ohne_wirkung")
+# Grenzen eingehalten?
+if not (0.01<=s.noise_scale<=10 and 0<=s.displace_strength<=2 and 0.01<=s.decimate_ratio_1<=1):
+    fails.append("rock_grenzen")
+# Erzeugt der Rock danach noch gueltige Geometrie?
+for o in list(bpy.data.objects): bpy.data.objects.remove(o,do_unlink=True)
+s.batch_count=1; s.use_modal=False; s.subsurf_levels=3
+res=bpy.ops.object.generate_rocks_batch()
+meshes=[o for o in bpy.context.scene.objects if o.type=='MESH']
+print("ROCK nach Randomize erzeugt:", [o.name for o in meshes], "faces=", len(meshes[0].data.polygons) if meshes else 0)
+if not meshes or len(meshes[0].data.polygons)==0: fails.append("rock_leer")
+r.unregister()
+
+# ---------- TREE ----------
+for o in list(bpy.data.objects): bpy.data.objects.remove(o,do_unlink=True)
+spec2=importlib.util.spec_from_file_location("stg", r"A:\eco\stylized_rock_generator\stylized_tree_generator.py")
+t=importlib.util.module_from_spec(spec2); sys.modules["stg"]=t; spec2.loader.exec_module(t)
+try: t.unregister()
+except Exception: pass
+t.register()
+ts=bpy.context.scene.tree_gen_settings
+ts.preset='birke'; ts.art_name="Birke"; ts.variant=1; ts.use_growth=False
+ts.make_leaf=True; ts.make_frucht=True; ts.random_amount=0.5
+ts.seed=0
+bpy.ops.object.treegen_randomize()
+print("TREE Seed nach Randomize:", ts.seed)
+if ts.seed==0: fails.append("tree_seed")
+bpy.ops.object.treegen_create()
+names=sorted(o.name for o in bpy.context.scene.objects)
+print("TREE Objekte:", names)
+if not {"Birke_01","Birke_01_Leaf","Birke_01_Frucht"} <= set(names): fails.append("zusatz_ebenen")
+# Ursprung identisch?
+base=bpy.context.scene.objects["Birke_01"]; leaf=bpy.context.scene.objects["Birke_01_Leaf"]
+d=(base.location-leaf.location).length
+print("URSPRUNG-Abstand Stamm<->Leaf: %.6f" % d)
+if d>1e-6: fails.append("ursprung_leaf")
+# Zwei Randomize-Durchlaeufe -> unterschiedliche Geometrie?
+def height():
+    ev=bpy.context.scene.objects["Birke_01"].evaluated_get(bpy.context.evaluated_depsgraph_get())
+    zs=[v.co.z for v in ev.data.vertices]; return round(max(zs)-min(zs),3)
+h1=height()
+bpy.ops.object.treegen_randomize(); bpy.ops.object.treegen_create()
+h2=height()
+print("TREE Hoehe Lauf1=%.3f Lauf2=%.3f" % (h1,h2))
+if abs(h1-h2)<1e-4: fails.append("tree_keine_variation")
+t.unregister()
+print("ERGEBNIS:", "ALLE CHECKS OK" if not fails else "FEHLER: "+", ".join(fails))
+sys.exit(1 if fails else 0)

tests/test_tree_addon.py

@@ -0,0 +1,80 @@
+"""Prueft das gebaute Tree-Addon: registrieren, Operator ausfuehren, Ergebnis messen."""
+import bpy, sys, zipfile, os, tempfile, importlib.util, traceback
+
+ZIP = r"A:\eco\stylized_rock_generator\dist\stylized_tree_generator-1.19.0.zip"
+fails = []
+
+tmp = tempfile.mkdtemp()
+with zipfile.ZipFile(ZIP) as z:
+    z.extractall(tmp)
+init = None
+for root, _, files in os.walk(tmp):
+    if "__init__.py" in files:
+        init = os.path.join(root, "__init__.py"); break
+if not init:
+    print("FAIL: __init__.py nicht im Zip"); sys.exit(1)
+print("Zip-Inhalt ok:", os.path.relpath(init, tmp))
+
+spec = importlib.util.spec_from_file_location("stylized_tree_generator", init)
+m = importlib.util.module_from_spec(spec)
+sys.modules["stylized_tree_generator"] = m
+try:
+    spec.loader.exec_module(m)
+    m.register()
+    print("registriert ok")
+except Exception:
+    traceback.print_exc(); print("FAIL: register"); sys.exit(1)
+
+s = bpy.context.scene.tree_gen_settings
+
+# 1) einzelner Baum je Preset
+for p in ("baum", "palme", "busch", "kaktus"):
+    for o in list(bpy.data.objects):
+        bpy.data.objects.remove(o, do_unlink=True)
+    s.preset = p; s.use_growth = False; s.seed = 3
+    r = bpy.ops.object.treegen_create()
+    obs = [o for o in bpy.data.objects if o.type == 'MESH']
+    bpy.context.view_layer.update()
+    dg = bpy.context.evaluated_depsgraph_get()
+    v = len(obs[0].evaluated_get(dg).data.vertices) if obs else 0
+    ok = ('FINISHED' in r) and v > 0
+    print("preset %-7s -> %s verts=%d" % (p, "ok" if ok else "FAIL", v))
+    if not ok: fails.append(p)
+
+# 2) Wachstums-Stufen
+for o in list(bpy.data.objects):
+    bpy.data.objects.remove(o, do_unlink=True)
+s.preset = "baum"; s.use_growth = True; s.stages = 4
+r = bpy.ops.object.treegen_create()
+obs = sorted([o for o in bpy.data.objects if o.type == 'MESH'], key=lambda o: o.name)
+bpy.context.view_layer.update()
+dg = bpy.context.evaluated_depsgraph_get()
+counts = [len(o.evaluated_get(dg).data.vertices) for o in obs]
+growing = all(counts[i] < counts[i+1] for i in range(len(counts)-1))
+print("stufen: %d Objekte verts=%s aufsteigend=%s" % (len(obs), counts, growing))
+if len(obs) != 4 or not growing: fails.append("stages")
+
+# 3) Modifier anwenden (Export-Pfad)
+for o in list(bpy.data.objects):
+    bpy.data.objects.remove(o, do_unlink=True)
+s.use_growth = False; s.apply_modifier = True
+s.generate_lightmap_uv = True   # Default ist AUS (EcoGame: dynamisches Licht)
+bpy.ops.object.treegen_create()
+obs = [o for o in bpy.data.objects if o.type == 'MESH']
+real = len(obs[0].data.vertices) if obs else 0   # echte Mesh-Daten, nicht evaluated
+uvs = [l.name for l in obs[0].data.uv_layers] if obs else []
+print("apply_modifier -> echte Verts=%d mods=%d uvs=%s" % (real, len(obs[0].modifiers) if obs else -1, uvs))
+if real == 0: fails.append("apply")
+if "UVMap" not in uvs: fails.append("uv0")
+if "Lightmap" not in uvs: fails.append("uv1")
+# UV muss world-space sein: V-Bereich ~ Baumhoehe
+if obs and obs[0].data.uv_layers.get("UVMap"):
+    d = obs[0].data.uv_layers["UVMap"].data
+    vs = [x.uv[1] for x in d]
+    h = max(v.co.z for v in obs[0].data.vertices)
+    print("UV world-space check: V-max=%.2f  Baumhoehe=%.2f" % (max(vs), h))
+    if max(vs) < h * 0.5: fails.append("uv_scale")
+
+m.unregister()
+print("ERGEBNIS:", "ALLE TESTS BESTANDEN" if not fails else ("FEHLER: " + ", ".join(fails)))
+sys.exit(1 if fails else 0)