Tree Generator v1.5.0: Ast-Dicke folgt der Elterndicke

Aeste/Zweige werden per Instanz-Scale an den Radius ihres Elternpunktes gekoppelt
('Input Radius' auf der Punkt-Domain von Instance on Points). Oben am duennen
Stamm sind die Aeste dadurch automatisch kuerzer und duenner statt gleich dick.

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

blender_manifest_tree.toml

@@ -1,7 +1,7 @@
 schema_version = "1.0.0"
 
 id = "stylized_tree_generator"
-version = "1.4.0"
+version = "1.5.0"
 name = "Stylized Tree Generator"
 tagline = "Parametrische Baeume, Palmen, Bueschen mit Wachstums-Stufen"
 maintainer = "D4rkst3r"

dist/index.json

@@ -32,7 +32,7 @@
       "id": "stylized_tree_generator",
       "name": "Stylized Tree Generator",
       "tagline": "Parametrische Baeume, Palmen, Bueschen mit Wachstums-Stufen",
-      "version": "1.4.0",
+      "version": "1.5.0",
       "type": "add-on",
       "maintainer": "D4rkst3r",
       "license": [
@@ -48,9 +48,9 @@
         "Mesh",
         "Modeling"
       ],
-      "archive_url": "./stylized_tree_generator-1.4.0.zip",
-      "archive_size": 11373,
-      "archive_hash": "sha256:421a702f2e5b088988db638dd7cbfb49de8126397476cfe192441bf069983c55"
+      "archive_url": "./stylized_tree_generator-1.5.0.zip",
+      "archive_size": 11772,
+      "archive_hash": "sha256:fe45391647074729afaac194801ab55c0d004c38f36b94737fdd6715e9c9501c"
     }
   ]
 }

stylized_tree_generator.py

@@ -1,7 +1,7 @@
 bl_info = {
     "name": "Stylized Tree Generator",
     "author": "D4rkst3r",
-    "version": (1, 4, 0),
+    "version": (1, 5, 0),
     "blender": (4, 2, 0),
     "location": "View3D > Sidebar > Tree Gen",
     "description": "Parametrischer Baum-/Palmen-/Busch-Generator (Geometry Nodes) mit Wachstums-Stufen",
@@ -326,9 +326,23 @@ def build_group():
             pass
         L(dirv.outputs[0], _sock(align, "Vector"))
 
-    inst = N("GeometryNodeInstanceOnPoints"); inst.location = (1050, 320)
+    # Aeste an die ELTERNDICKE anpassen: "Instance on Points" wertet Felder auf
+    # der Punkt-Domain aus, dort liefert "Input Radius" den Stammradius genau am
+    # Ansatzpunkt. Ohne das sind Aeste oben (duenner Stamm) genauso dick wie
+    # unten - und damit dicker als der Stamm selbst.
+    prad = N("GeometryNodeInputRadius"); prad.location = (900, 120)
+    pratio = N("ShaderNodeMath"); pratio.location = (1050, 120); pratio.operation = 'DIVIDE'
+    L(prad.outputs[0], pratio.inputs[0]); L(V["Trunk Radius"], pratio.inputs[1])
+    pscale = N("ShaderNodeMapRange"); pscale.location = (1200, 120)
+    L(pratio.outputs[0], pscale.inputs["Value"])
+    pscale.inputs["To Min"].default_value = 0.35   # nicht ganz kollabieren lassen
+    pscale.inputs["To Max"].default_value = 1.0
+    pscale.clamp = True
+
+    inst = N("GeometryNodeInstanceOnPoints"); inst.location = (1400, 320)
     L(_out(c2p, "Points"), _sock(inst, "Points"))
     L(_out(bsetr, "Curve"), _sock(inst, "Instance"))
+    L(pscale.outputs[0], _sock(inst, "Scale"))
     if align is not None:
         L(align.outputs[0], _sock(inst, "Rotation"))
 
@@ -439,9 +453,22 @@ def build_group():
             pass
         L(sdir.outputs[0], _sock(salign, "Vector"))
 
-    sinst = N("GeometryNodeInstanceOnPoints"); sinst.location = (2850, 520)
+    # Zweige ebenso an die Dicke ihres Elternastes koppeln.
+    sprad = N("GeometryNodeInputRadius"); sprad.location = (2700, 300)
+    sbaseref = N("ShaderNodeMath"); sbaseref.location = (2700, 180); sbaseref.operation = 'MULTIPLY'
+    L(V["Trunk Radius"], sbaseref.inputs[0]); L(V["Branch Thickness"], sbaseref.inputs[1])
+    sratio = N("ShaderNodeMath"); sratio.location = (2850, 240); sratio.operation = 'DIVIDE'
+    L(sprad.outputs[0], sratio.inputs[0]); L(sbaseref.outputs[0], sratio.inputs[1])
+    sscale = N("ShaderNodeMapRange"); sscale.location = (3000, 240)
+    L(sratio.outputs[0], sscale.inputs["Value"])
+    sscale.inputs["To Min"].default_value = 0.4
+    sscale.inputs["To Max"].default_value = 1.0
+    sscale.clamp = True
+
+    sinst = N("GeometryNodeInstanceOnPoints"); sinst.location = (3150, 520)
     L(_out(sp, "Points"), _sock(sinst, "Points"))
     L(_out(ssetr, "Curve"), _sock(sinst, "Instance"))
+    L(sscale.outputs[0], _sock(sinst, "Scale"))
     if salign is not None:
         L(salign.outputs[0], _sock(sinst, "Rotation"))
     sreal = N("GeometryNodeRealizeInstances"); sreal.location = (3000, 520)