Fix T58448: Cloth presets fails to load due to missing attribute structural_stiffness.

Presets were not updated when parameter were changed in rBe3d31b8dfbdc.

Note that will also check on generating more resistent py code for that
kind of presets, since that will also affect any custom preset made by
users...

release/scripts/presets/cloth/cotton.py

@@ -1,7 +1,11 @@
 import bpy
 bpy.context.cloth.settings.quality = 5
 bpy.context.cloth.settings.mass = 0.300
-bpy.context.cloth.settings.structural_stiffness = 15.000
+bpy.context.cloth.settings.tension_stiffness = 15
+bpy.context.cloth.settings.compression_stiffness = 15
+bpy.context.cloth.settings.shear_stiffness = 15
 bpy.context.cloth.settings.bending_stiffness = 0.500
-bpy.context.cloth.settings.spring_damping = 5.000
+bpy.context.cloth.settings.tension_damping = 5
+bpy.context.cloth.settings.compression_damping = 5
+bpy.context.cloth.settings.shear_damping = 5
 bpy.context.cloth.settings.air_damping = 1.000

release/scripts/presets/cloth/denim.py

@@ -1,7 +1,11 @@
 import bpy
 bpy.context.cloth.settings.quality = 12
 bpy.context.cloth.settings.mass = 1
-bpy.context.cloth.settings.structural_stiffness = 40
+bpy.context.cloth.settings.tension_stiffness = 40
+bpy.context.cloth.settings.compression_stiffness = 40
+bpy.context.cloth.settings.shear_stiffness = 40
 bpy.context.cloth.settings.bending_stiffness = 10
-bpy.context.cloth.settings.spring_damping = 25
+bpy.context.cloth.settings.tension_damping = 25
+bpy.context.cloth.settings.compression_damping = 25
+bpy.context.cloth.settings.shear_damping = 25
 bpy.context.cloth.settings.air_damping = 1

release/scripts/presets/cloth/leather.py

@@ -1,7 +1,11 @@
 import bpy
 bpy.context.cloth.settings.quality = 15
 bpy.context.cloth.settings.mass = 0.4
-bpy.context.cloth.settings.structural_stiffness = 80
+bpy.context.cloth.settings.tension_stiffness = 80
+bpy.context.cloth.settings.compression_stiffness = 80
+bpy.context.cloth.settings.shear_stiffness = 80
 bpy.context.cloth.settings.bending_stiffness = 150
-bpy.context.cloth.settings.spring_damping = 25
+bpy.context.cloth.settings.tension_damping = 25
+bpy.context.cloth.settings.compression_damping = 25
+bpy.context.cloth.settings.shear_damping = 25
 bpy.context.cloth.settings.air_damping = 1

release/scripts/presets/cloth/rubber.py

@@ -1,7 +1,11 @@
 import bpy
 bpy.context.cloth.settings.quality = 7
 bpy.context.cloth.settings.mass = 3
-bpy.context.cloth.settings.structural_stiffness = 15
+bpy.context.cloth.settings.tension_stiffness = 15
+bpy.context.cloth.settings.compression_stiffness = 15
+bpy.context.cloth.settings.shear_stiffness = 15
 bpy.context.cloth.settings.bending_stiffness = 25
-bpy.context.cloth.settings.spring_damping = 25
+bpy.context.cloth.settings.tension_damping = 25
+bpy.context.cloth.settings.compression_damping = 25
+bpy.context.cloth.settings.shear_damping = 25
 bpy.context.cloth.settings.air_damping = 1

release/scripts/presets/cloth/silk.py

@@ -1,7 +1,11 @@
 import bpy
 bpy.context.cloth.settings.quality = 5
 bpy.context.cloth.settings.mass = 0.150
-bpy.context.cloth.settings.structural_stiffness = 5
+bpy.context.cloth.settings.tension_stiffness = 5
+bpy.context.cloth.settings.compression_stiffness = 5
+bpy.context.cloth.settings.shear_stiffness = 5
 bpy.context.cloth.settings.bending_stiffness = 0.05
-bpy.context.cloth.settings.spring_damping = 0
+bpy.context.cloth.settings.tension_damping = 0
+bpy.context.cloth.settings.compression_damping = 0
+bpy.context.cloth.settings.shear_damping = 0
 bpy.context.cloth.settings.air_damping = 1