[Bf-blender-cvs] [86cc29d0cf3] master: Multires: Disallow changing mode and quality after subdivision
Sergey Sharybin
noreply at git.blender.org
Fri Mar 20 09:51:09 CET 2020
Commit: 86cc29d0cf3be547cd93ac0daec420d57dc687f7
Author: Sergey Sharybin
Date: Fri Mar 20 09:50:00 2020 +0100
Branches: master
https://developer.blender.org/rB86cc29d0cf3be547cd93ac0daec420d57dc687f7
Multires: Disallow changing mode and quality after subdivision
Avoids possible final object shape destruction since those options
defines how displacement is applied and propagated.
===================================================================
M release/scripts/startup/bl_ui/properties_data_modifier.py
===================================================================
diff --git a/release/scripts/startup/bl_ui/properties_data_modifier.py b/release/scripts/startup/bl_ui/properties_data_modifier.py
index bcf1c285d2b..7508b0e2321 100644
--- a/release/scripts/startup/bl_ui/properties_data_modifier.py
+++ b/release/scripts/startup/bl_ui/properties_data_modifier.py
@@ -665,7 +665,19 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
col.prop(md, "offset_v")
def MULTIRES(self, layout, ob, md):
- layout.row().prop(md, "subdivision_type", expand=True)
+ # Changing some of the properties can not be done once there is an
+ # actual displacement stored for this multires modifier. This check
+ # will disallow those properties from change.
+ # This is a bit stupid check but should be sufficient for the usual
+ # multires usage. It might become less strict and only disallow
+ # modifications if there is CD_MDISPS layer, or if there is actual
+ # non-zero displacement but such checks will be too slow to be done
+ # on every redraw.
+ have_displacement = (md.total_levels != 0)
+
+ row = layout.row()
+ row.enabled = not have_displacement
+ row.prop(md, "subdivision_type", expand=True)
split = layout.split()
col = split.column()
@@ -673,7 +685,10 @@ class DATA_PT_modifiers(ModifierButtonsPanel, Panel):
# TODO(sergey): Expose it again after T58473 is solved.
# col.prop(md, "sculpt_levels", text="Sculpt")
col.prop(md, "render_levels", text="Render")
- col.prop(md, "quality")
+
+ row = col.row()
+ row.enabled = not have_displacement
+ row.prop(md, "quality")
col = split.column()
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