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DrawList: fixed overdraw issue for filled baked corner rendering.

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Require all corners to fit inside the rect to avoid overdraw (or fallback to path rendering).
eg. AddRectFilled() w/ size=10, rounding=8 or 10 would break.
This commit is contained in:
Mikko Mononen
2026-07-31 11:39:16 +03:00
committed by ocornut
parent 9695af5162
commit 04efdebb14
1 changed files with 9 additions and 5 deletions
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14
imgui_draw.cpp
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@@ -2583,11 +2583,15 @@ void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 c
{
IM_ASSERT_PARANOID(!(_Data->Font->OwnerAtlas->Flags & ImFontAtlasFlags_NoBakedRoundCorners));
// 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);
_AddRectFilledBaked(p_min, p_max, col, (float)size * _FringeScale, _Data->TexUvCorners[idx], flags);
return;
const int corner_size = s_rounding + 1;
// Check that the baked corners do not overlap (this could be made more accurate if tested for x and y separately).
if ((float)corner_size * 2.0f * _FringeScale < min_dim)
{
const int idx = (s_rounding - 1);
IM_ASSERT_PARANOID(idx >= 0 && idx < IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX);
_AddRectFilledBaked(p_min, p_max, col, (float)corner_size * _FringeScale, _Data->TexUvCorners[idx], flags);
return;
}
}
}