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Lattice Modifier add invert vgroup option

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Adds the invert vertex group option to the Lattice modifier.

Adds a short flag and modifies the existing char padding for the correct amount.
Adds a .invert_vgroup to the LatticeDeformUserdata.
Passes the flag into the lattice_deform_verts function where the weights around found and used.
For the other calls of lattice_deform_verts function they pass in NULL for the flag in the same way they pass NULL for the vgroup name.

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D6747
This commit is contained in:
Cody Winchester
2020-02-06 11:18:41 +01:00
committed by Bastien Montagne
parent 2c5379b405
commit efa2ffaa2d
6 changed files with 24 additions and 6 deletions
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5
source/blender/makesrna/intern/rna_modifier.c
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@@ -1936,6 +1936,11 @@ static void rna_def_modifier_lattice(BlenderRNA *brna)
RNA_def_property_string_funcs(prop, NULL, NULL, "rna_LatticeModifier_name_set");
RNA_def_property_update(prop, 0, "rna_Modifier_update");
prop = RNA_def_property(srna, "invert_vertex_group", PROP_BOOLEAN, PROP_NONE);
RNA_def_property_boolean_sdna(prop, NULL, "flag", MOD_LATTICE_INVERT_VGROUP);
RNA_def_property_ui_text(prop, "Invert", "Invert vertex group influence");
RNA_def_property_update(prop, 0, "rna_Modifier_update");
prop = RNA_def_property(srna, "strength", PROP_FLOAT, PROP_NONE);
RNA_def_property_range(prop, -FLT_MAX, FLT_MAX);
RNA_def_property_ui_range(prop, 0, 1, 10, 2);