Broken line AA

[MrDimarik]

Version/Branch of Dear ImGui:
Version: v1.75 WIP
Branch: master

Back-end/Renderer/Compiler/OS
Back-ends: imgui_impl_dx11.cpp + imgui_impl_win32.cpp
Compiler: Visual Studio 2019 (v142) (SDK: Last 10.0.18362.0)
Operating System: Windows 10 1909 (18363.592)

My Issue/Question:
Drawing a triangle looks choppy!
Is there any way to fix this?

Screenshots/Video

Code Sample
auto DrawList = ImGui::GetOverlayDrawList();
DrawList->AddTriangle({ 0,1080 }, { 960, 0 }, { 1000, 1000 }, -1, 2);

[ocornut]

Hello,

There's a bug where the thickness of polyline strokes is not consistent accross segments.
See #2183 and proposed solution #2964.

Workarounds

• Merge Render thick lines with correct thickness and beveled corners #2964
• For occasional use, with small thickness and full opacity you may temporarily get around by using 3 distinct lines (really not ideal of course)

ImDrawList* draw_list = ImGui::GetOverlayDrawList();
draw_list->AddTriangle(ImVec2( 0,1080), ImVec2(960, 0), ImVec2(1000, 1000), IM_COL32(255,255,255,255), 3);

Closing as duplicate of issues marked above, we should tackle them fairly shortly as the PR linked above is quite functional.