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-rw-r--r--doc/classes/SurfaceTool.xml3
-rw-r--r--scene/resources/surface_tool.cpp10
-rw-r--r--scene/resources/surface_tool.h2
3 files changed, 11 insertions, 4 deletions
diff --git a/doc/classes/SurfaceTool.xml b/doc/classes/SurfaceTool.xml
index d8644c5419..7d78d71330 100644
--- a/doc/classes/SurfaceTool.xml
+++ b/doc/classes/SurfaceTool.xml
@@ -196,8 +196,11 @@
<method name="generate_normals">
<return type="void">
</return>
+ <argument index="0" name="flip" type="bool" default="false">
+ </argument>
<description>
Generates normals from Vertices so you do not have to do it manually.
+ Setting "flip" [code]true[/code] inverts resulting normals.
</description>
</method>
<method name="generate_tangents">
diff --git a/scene/resources/surface_tool.cpp b/scene/resources/surface_tool.cpp
index 07c1036a10..5a42873d79 100644
--- a/scene/resources/surface_tool.cpp
+++ b/scene/resources/surface_tool.cpp
@@ -861,7 +861,7 @@ void SurfaceTool::generate_tangents() {
}
}
-void SurfaceTool::generate_normals() {
+void SurfaceTool::generate_normals(bool p_flip) {
ERR_FAIL_COND(primitive != Mesh::PRIMITIVE_TRIANGLES);
@@ -887,7 +887,11 @@ void SurfaceTool::generate_normals() {
ERR_FAIL_COND(!v[2]);
E = v[2]->next();
- Vector3 normal = Plane(v[0]->get().vertex, v[1]->get().vertex, v[2]->get().vertex).normal;
+ Vector3 normal;
+ if (!p_flip)
+ normal = Plane(v[0]->get().vertex, v[1]->get().vertex, v[2]->get().vertex).normal;
+ else
+ normal = Plane(v[2]->get().vertex, v[1]->get().vertex, v[0]->get().vertex).normal;
if (smooth) {
@@ -980,7 +984,7 @@ void SurfaceTool::_bind_methods() {
ClassDB::bind_method(D_METHOD("index"), &SurfaceTool::index);
ClassDB::bind_method(D_METHOD("deindex"), &SurfaceTool::deindex);
- ClassDB::bind_method(D_METHOD("generate_normals"), &SurfaceTool::generate_normals);
+ ClassDB::bind_method(D_METHOD("generate_normals", "flip"), &SurfaceTool::generate_normals, DEFVAL(false));
ClassDB::bind_method(D_METHOD("generate_tangents"), &SurfaceTool::generate_tangents);
ClassDB::bind_method(D_METHOD("add_to_format", "flags"), &SurfaceTool::add_to_format);
diff --git a/scene/resources/surface_tool.h b/scene/resources/surface_tool.h
index 7a9aa349bb..459d399380 100644
--- a/scene/resources/surface_tool.h
+++ b/scene/resources/surface_tool.h
@@ -116,7 +116,7 @@ public:
void index();
void deindex();
- void generate_normals();
+ void generate_normals(bool p_flip = false);
void generate_tangents();
void add_to_format(int p_flags) { format |= p_flags; }