Fixed for sliders with min-max values outside range \[0-1\] when slid…

…er is configured for grab interaction (IsTouchable = false)
MixedRealityToolkit · Oct 17, 2024 · da0cd07 · da0cd07
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diff --git a/org.mixedrealitytoolkit.uxcore/CHANGELOG.md b/org.mixedrealitytoolkit.uxcore/CHANGELOG.md
@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 * StateVisualizer: Modified access modifiers of State, stateContainers and UpdateStateValue to protected internal to allow adding states through subclassing. [PR #926](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/926)
 
+### Fixed
+
+* Fixed for sliders with min-max values outside range \[0-1\] when slider is configured for grab interaction (IsTouchable = false) [Issue 944](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/issues/944)
+
 ## [3.2.2-development] - 2024-08-29
 
 ### Changed

diff --git a/org.mixedrealitytoolkit.uxcore/Slider/Slider.cs b/org.mixedrealitytoolkit.uxcore/Slider/Slider.cs
@@ -370,7 +370,8 @@ private void UpdateSliderValue()
 
             var handDelta = Vector3.Dot(SliderTrackDirection.normalized, interactorDelta);
 
-            float normalizedValue = Mathf.Clamp(StartSliderValue + handDelta / SliderTrackDirection.magnitude, 0f, 1.0f);
+            var normalizedStartValue = (StartSliderValue - MinValue) / (MaxValue - MinValue);
+            float normalizedValue = Mathf.Clamp(normalizedStartValue + handDelta / SliderTrackDirection.magnitude, 0f, 1.0f);
 
             var unsnappedValue = normalizedValue * (MaxValue - MinValue) + MinValue;
             Value = useSliderStepDivisions ? SnapSliderToStepPositions(unsnappedValue) : unsnappedValue;
@@ -386,12 +387,12 @@ protected override void OnSelectEntered(SelectEnterEventArgs args)
             base.OnSelectEntered(args);
 
             // Snap to position by setting the startPosition
-            // to the slider start, and start value to zero.
+            // to the slider start, and start value to MinValue.
             // However, don't snap when using grabs.
             if (snapToPosition && !(args.interactorObject is IGrabInteractor))
             {
                 StartInteractionPoint = SliderStart.position;
-                StartSliderValue = 0.0f;
+                StartSliderValue = MinValue;
             }
             else
             {

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diff --git a/org.mixedrealitytoolkit.uxcore/Tests/Runtime/Prefabs/GrabSliderTest.prefab.meta b/org.mixedrealitytoolkit.uxcore/Tests/Runtime/Prefabs/GrabSliderTest.prefab.meta