Shadows: Re-added AddShadowNGon().

imgui.h

@@ -2866,11 +2866,12 @@ struct ImDrawList
     //      Typically used by: small, frequent objects, opaque objects, transparent objects if shadow darkening isn't an issue.
     //    - Shadows w/ hole under the object: a bit slower for CPU, less pixels rendered, no difference if used behind a transparent shape.
     //      Typically used by: large, infrequent objects, transparent objects if exact blending/color matter.
-    // - FIXME-SHADOWS: 'offset' + ImDrawShadowFlags_CutOutBackground are not currently supported together with AddShadowCircle(), AddShadowConvexPoly().
+    // - FIXME-SHADOWS: 'offset' + ImDrawShadowFlags_CutOutBackground are not currently supported together with AddShadowCircle(), AddShadowConvexPoly(), AddShadowNGon().
     #define IMGUI_HAS_SHADOWS 1
     IMGUI_API void  AddShadowRect(const ImVec2& obj_min, const ImVec2& obj_max, ImU32 shadow_col, float shadow_thickness, const ImVec2& shadow_offset, ImDrawShadowFlags shadow_flags = 0, float obj_rounding = 0.0f, ImDrawCornerFlags obj_rounding_corners = ImDrawCornerFlags_All);
     IMGUI_API void  AddShadowCircle(const ImVec2& obj_center, float obj_radius, ImU32 shadow_col, float shadow_thickness, const ImVec2& shadow_offset, ImDrawShadowFlags shadow_flags = 0, int obj_num_segments = 12);
     IMGUI_API void  AddShadowConvexPoly(const ImVec2* points, int points_count, ImU32 shadow_col, float shadow_thickness, const ImVec2& shadow_offset, ImDrawShadowFlags shadow_flags = 0);
+    IMGUI_API void  AddShadowNGon(const ImVec2& obj_center, float obj_radius, ImU32 shadow_col, float shadow_thickness, const ImVec2& shadow_offset, ImDrawShadowFlags shadow_flags, int obj_num_segments);
 
     // Stateful path API, add points then finish with PathFillConvex() or PathStroke()
     // - Important: filled shapes must always use clockwise winding order! The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.

imgui_draw.cpp

@@ -2763,6 +2763,12 @@ void ImDrawList::AddShadowCircle(const ImVec2& obj_center, float obj_radius, ImU
     _Path.Size = 0;
 }
 
+void ImDrawList::AddShadowNGon(const ImVec2& obj_center, float obj_radius, ImU32 shadow_col, float shadow_thickness, const ImVec2& shadow_offset, ImDrawShadowFlags shadow_flags, int num_segments)
+{
+    IM_ASSERT(num_segments != 0);
+    AddShadowCircle(obj_center, obj_radius, shadow_col, shadow_thickness, shadow_offset, shadow_flags, num_segments);
+}
+
 //-----------------------------------------------------------------------------
 // [SECTION] ImDrawListSplitter
 //-----------------------------------------------------------------------------