feat(unit-frames): add smooth health bar interpolation#417
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EllesmereGaming merged 1 commit intoJun 21, 2026
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Add per-unit "Smooth Health Bars" toggle to the Health Bar settings section for all unit frame types (player, target, focus, boss, etc). Uses oUF's built-in `.smoothing` property, which passes the interpolation type to StatusBar:SetValue on every health update. Defaults to ExponentialEaseOut (same as Raid Frames), with the toggle allowing users to fall back to Immediate (no smoothing). Enabled by default for all unit types.
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Summary
Unit Frames health bars currently snap to new values with no interpolation. This adds a per-unit "Smooth Health Bars" toggle to the Health Bar settings section, using the same
Enum.StatusBarInterpolation.ExponentialEaseOutAPI as the Raid Frames module. Minor layout adjustments to the Health Bar settings sections are also included.Changes
EllesmereUIUnitFrames.lua:smoothBars = trueadded to all 8 unit type defaults (player, target, playerTarget, targettarget, focustarget, pet, focus, boss)CreateHealthBar: setshealth.smoothing = ExponentialEaseOutwhensmoothBarsis enabled. oUF's health element already passeselement.smoothingas the second argument toSetValueon every health update, so no custom tick or update logic is neededReloadFrames: updateshealth.smoothinglive when the toggle is flipped (no/reloadrequired)EUI_UnitFrames_Options.lua:Approach
oUF's built-in
.smoothingproperty (documented inoUF/elements/health.lua) defaults toEnum.StatusBarInterpolation.Immediate. Setting it toExponentialEaseOutdelegates all easing to the C engine with zero Lua cost, matching how Raid Frames handles smooth health bars. The toggle lets users opt out per-unit if they prefer instant snaps.Enabled by default for all unit types, consistent with the Raid Frames default.
Files changed
2 files changed, 98 insertions(+), 59 deletions(-)