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Add AlphaBlend tint mode to TintEffect #1131

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Merged
keveleigh merged 2 commits into from
Jun 10, 2026
Merged

Add AlphaBlend tint mode to TintEffect #1131

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472a942
Add AlphaBlend
keveleigh Jun 9, 2026
8c1f75f
Update CHANGELOG.md
keveleigh Jun 10, 2026
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4 changes: 4 additions & 0 deletions org.mixedrealitytoolkit.uxcore/CHANGELOG.md
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Expand Up @@ -4,6 +4,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).

## Unreleased

### Added

* Added `AlphaBlend` tint mode to `TintEffect`. [PR #1131](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/1131)

### Fixed

* Fixed "leaked managed shell" issue in `UGUIInputAdapter`. [PR #1096](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/1096)
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14 changes: 12 additions & 2 deletions org.mixedrealitytoolkit.uxcore/StateVisualizer/Effects/TintEffect.cs
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Expand Up @@ -132,7 +132,6 @@ public override void PrepareFrame(Playable playable, FrameData info)
{
ApplyColor(startColors[i], tintables[i]);
}

}

/// <inheritdoc />
Expand Down Expand Up @@ -162,6 +161,12 @@ public override void ProcessFrame(Playable playable, FrameData info, object play
{
targetColor = currentColor * TintColor;
}
else if (BlendMode == BlendType.AlphaBlend)
{
// Simulate layering a transparent color over the current color
targetColor = Color.Lerp(currentColor, TintColor, TintColor.a);
targetColor.a = currentColor.a; // Preserve the graphic's original overall opacity
}
else
{
targetColor = TintColor;
Expand Down Expand Up @@ -191,7 +196,12 @@ internal enum BlendType
/// <summary>
/// Multiply the tint color onto the existing color stack.
/// </summary>
Multiply
Multiply,

/// <summary>
/// Alpha-blends the tint color onto the existing color stack using the tint color's alpha value.
/// </summary>
AlphaBlend
}

[SerializeField]
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