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DrawList: fixed filled rect baked AA.

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Always add 1px to the fill side of the rounded corner to prevent the corner AA to bleed into the rectangle edges.
This commit is contained in:
Mikko Mononen
2026-07-29 19:02:14 +03:00
committed by ocornut
parent b5ef1d837d
commit 3bce489b7a
1 changed files with 7 additions and 6 deletions
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13
imgui_draw.cpp
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@@ -2581,9 +2581,10 @@ void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 c
if (allow_tex_corners && s_rounding <= IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX)
{
IM_ASSERT_PARANOID(!(_Data->Font->OwnerAtlas->Flags & ImFontAtlasFlags_NoBakedRoundCorners));
const int size = ImMax(2, s_rounding); // This is matching the baking calculations.
const int idx = (s_rounding - 1);
IM_ASSERT_PARANOID(idx >= 0 && idx < IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX);
// This is matching the baking calculations. The rounding clamping above makes sure that there's enough space for the extra pixel.
const int size = s_rounding + 1;
const int idx = (s_rounding - 1);
IM_ASSERT_PARANOID(idx >= 0 && idx < IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX);
ImVec4 tex_uvs = _Data->TexUvCorners[idx];
_AddRectFilledBaked(p_min, p_max, col, (float)size * _FringeScale, tex_uvs, flags);
return;
@@ -4925,7 +4926,7 @@ static void ImFontAtlasBuildUpdateTexDataCorners(ImFontAtlas* atlas)
row_height = 0;
for (int i = 0; i < IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX; i++)
{
const int size = ImMax(2, ImMax(i + 1, thickness)) + 2;
const int size = ImMax(i + 2, thickness) + 2;
row_width += size;
row_height = ImMax(row_height, size);
}
@@ -4946,8 +4947,8 @@ static void ImFontAtlasBuildUpdateTexDataCorners(ImFontAtlas* atlas)
// Filled
for (int n = 0; n < IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX; n++)
{
const int rounding = n+1;
const int s = ImMax(2, rounding); // We need at least 2px so that stretching has solid color.
const int rounding = n + 1;
const int s = rounding + 1; // Always add 1px to the fill side of the rounded corner to prevent the corner AA to bleed into the rectangle edges.
const int w = s + 2;
const int h = s + 2;