[Bf-docboard-svn] bf-manual: [8326] trunk/blender_docs/manual/modeling/modifiers/generate/solidify.rst: solidifiy: clarify what vertex groups do if a vertex is not in them

[Henrik Dick]

Revision: 8326
          https://developer.blender.org/rBM8326
Author:   weasel
Date:     2021-08-19 15:07:27 +0200 (Thu, 19 Aug 2021)
Log Message:
-----------
solidifiy: clarify what vertex groups do if a vertex is not in them

Modified Paths:
--------------
    trunk/blender_docs/manual/modeling/modifiers/generate/solidify.rst

Modified: trunk/blender_docs/manual/modeling/modifiers/generate/solidify.rst
===================================================================
--- trunk/blender_docs/manual/modeling/modifiers/generate/solidify.rst	2021-08-19 12:03:38 UTC (rev 8325)
+++ trunk/blender_docs/manual/modeling/modifiers/generate/solidify.rst	2021-08-19 13:07:27 UTC (rev 8326)
@@ -115,24 +115,30 @@
       since the rims are generated from the borders of the original geometry.
 
 Vertex Group
-   Only vertices in this group are solidified. Their weights are multiplied by the thickness,
-   so vertices with lower weights will be less thick.
+   The weights of the selected vertex group are multiplied onto the *Thickness*,
+   so vertices with lower weights will be less thick. The vertices which are not part
+   of the vertex group will be used as if their weight was zero.
 
    Invert
-      Reverses the vertex group, so that only vertices which are **not** in the vertex group are solidified.
+      Reverses the vertex group weights, so that the used weight is one minus the actual weight.
 
    Factor
       How much the vertex weights are taken into account.
 
-      - On 0.0 , vertices with zero weight will have no thickness at all (creates duplicate vertices).
+      - On 0.0 , vertices with zero weight will have no thickness at all.
       - On 0.5 , vertices with zero weight will be half as thick as those with full weight.
       - On 1.0 , the weights are ignored and the *Thickness* value is used for every vertex.
 
    Flat Faces :guilabel:`Complex Mode`
       Use the minimal vertex weight assigned to the vertices of a face to make sure that
-      new faces stays parallel to their original ones. This is slow, so disable it when it is not needed.
+      new faces stay parallel to their original ones. This is slow, so disable it when it is not needed.
 
+   .. note::
 
+      If the final thickness of a vertex is zero, it will still be solidified.
+      Therefore duplicate geometry is created, which sometimes needs extra care.
+
+
 Normals
 -------