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DrawList: added improved polyline rendering. (2183, 7972)

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- added 2 variants of polyline rendering
- one handles integersized thickness using one strip of triangles along the line
- second handles any thickness using 2 strips of triangles long the line
This commit is contained in:
Mikko Mononen
2026-04-21 10:46:18 +03:00
committed by ocornut
parent d0bf1f316c
commit ce44b4e8be
3 changed files with 726 additions and 3 deletions
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imgui.h
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@@ -3546,6 +3546,7 @@ struct ImDrawList
// - Only simple polygons are supported by filling functions (no self-intersections, no holes).
// - Concave polygon fill is more expensive than convex one: it has O(N^2) complexity. Provided as a convenience for the user but not used by the main library.
IMGUI_API void AddPolyline(const ImVec2* points, int num_points, ImU32 col, float thickness, ImDrawFlags flags = 0);
IMGUI_API void AddPolylineLegacy(const ImVec2* points, int num_points, ImU32 col, float thickness, ImDrawFlags flags = 0);
IMGUI_API void AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col);
IMGUI_API void AddConcavePolyFilled(const ImVec2* points, int num_points, ImU32 col);
@@ -3646,6 +3647,8 @@ struct ImDrawList
IMGUI_API void _PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments);
IMGUI_API void _AddRectFilledBaked(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float r, ImVec4 tex_uvs, ImDrawFlags flags);
IMGUI_API void _AddRectBaked(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, float r, float t, ImVec4 tex_uvs, ImDrawFlags flags);
IMGUI_API void _AddPolylineThin(const ImVec2* points, const int points_count, ImU32 col, float thickness, ImDrawFlags flags, ImVec4 tex_uvs);
IMGUI_API void _AddPolylineThick(const ImVec2* points, const int points_count, ImU32 col, float thickness, ImDrawFlags flags);
};
// All draw data to render a Dear ImGui frame