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Improve on automatic circle segment count calculation. (#3808)

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thedmd
2021-02-17 12:55:25 +01:00
committed by ocornut
parent b47aa46d81
commit f107693d9b
5 changed files with 80 additions and 32 deletions
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6
imgui.cpp
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@ -986,7 +986,7 @@ ImGuiStyle::ImGuiStyle()
AntiAliasedLinesUseTex = true; // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering.
AntiAliasedFill = true; // Enable anti-aliased filled shapes (rounded rectangles, circles, etc.).
CurveTessellationTol = 1.25f; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
CircleSegmentMaxError = 1.60f; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
CircleTessellationMaxError = 0.25f; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
// Default theme
ImGui::StyleColorsDark(this);
@ -3878,7 +3878,7 @@ void ImGui::NewFrame()
virtual_space.Add(g.Viewports[n]->GetMainRect());
g.DrawListSharedData.ClipRectFullscreen = virtual_space.ToVec4();
g.DrawListSharedData.CurveTessellationTol = g.Style.CurveTessellationTol;
g.DrawListSharedData.SetCircleSegmentMaxError(g.Style.CircleSegmentMaxError);
g.DrawListSharedData.SetCircleTessellationMaxError(g.Style.CircleTessellationMaxError);
g.DrawListSharedData.InitialFlags = ImDrawListFlags_None;
if (g.Style.AntiAliasedLines)
g.DrawListSharedData.InitialFlags |= ImDrawListFlags_AntiAliasedLines;
@ -7056,7 +7056,7 @@ static void ImGui::ErrorCheckNewFrameSanityChecks()
IM_ASSERT(g.IO.Fonts->Fonts.Size > 0 && "Font Atlas not built. Did you call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8()?");
IM_ASSERT(g.IO.Fonts->Fonts[0]->IsLoaded() && "Font Atlas not built. Did you call io.Fonts->GetTexDataAsRGBA32() / GetTexDataAsAlpha8()?");
IM_ASSERT(g.Style.CurveTessellationTol > 0.0f && "Invalid style setting!");
IM_ASSERT(g.Style.CircleSegmentMaxError > 0.0f && "Invalid style setting!");
IM_ASSERT(g.Style.CircleTessellationMaxError > 0.0f && "Invalid style setting!");
IM_ASSERT(g.Style.Alpha >= 0.0f && g.Style.Alpha <= 1.0f && "Invalid style setting!"); // Allows us to avoid a few clamps in color computations
IM_ASSERT(g.Style.WindowMinSize.x >= 1.0f && g.Style.WindowMinSize.y >= 1.0f && "Invalid style setting.");
IM_ASSERT(g.Style.WindowMenuButtonPosition == ImGuiDir_None || g.Style.WindowMenuButtonPosition == ImGuiDir_Left || g.Style.WindowMenuButtonPosition == ImGuiDir_Right);