[unity] Added outline shader parameter `Advanced - Opaque Alpha` which can be used to exclude problematic semi-transparent areas.

CHANGELOG.md

@@ -87,6 +87,7 @@
   * `SkeletonAnimation`, `SkeletonMecanim` and `SkeletonGraphic` now provide an additional `OnAnimationRebuild` callback delegate which is issued after both the skeleton and the animation state have been initialized.
   * Timeline `SkeletonAnimation Track` and `SkeletonGraphic Track` now provide an `Unscaled Time` property. Whenever starting a new animation clip of this track, `SkeletonAnimation.UnscaledTime` or `SkeletonGraphic.UnscaledTime` will be set to this value. This allows you to play back Timeline clips either in normal game time or unscaled game time. Note that `PlayableDirector.UpdateMethod` is ignored and replaced by this property, which allows more fine-granular control per Timeline track.
   * Added `SkeletonRootMotion` callback delegates `ProcessRootMotionOverride` and `PhysicsUpdateRootMotionOverride` to customize how root motion is applied. The new property `disableOnOverride` determines whether the callback will be issued in addition or instead of normally applying root motion. Added property `rootMotionScaleRotation` to allow scaling rotational root-motion to match e.g. a 90 degree rotation to a custom target angle.
+  * Added outline shader parameter `Advanced - Opaque Alpha` which can be used to exclude problematic semi-transparent areas, which may receive an undesired large outline color overlay otherwise.
  
 * **Breaking changes**
   * Made `SkeletonGraphic.unscaledTime` parameter protected, use the new property `UnscaledTime` instead.

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Shaders/SpineShaderWithOutlineGUI.cs

@@ -44,6 +44,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 	MaterialProperty _ThresholdEnd = null;
 	MaterialProperty _OutlineSmoothness = null;
 	MaterialProperty _Use8Neighbourhood = null;
+	MaterialProperty _OutlineOpaqueAlpha = null;
 	MaterialProperty _OutlineMipLevel = null;
 	MaterialProperty _StencilComp = null;
 	MaterialProperty _StencilRef = null;
@@ -55,6 +56,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 	static GUIContent _ThresholdEndText = new GUIContent("Outline Threshold", "");
 	static GUIContent _OutlineSmoothnessText = new GUIContent("Outline Smoothness", "");
 	static GUIContent _Use8NeighbourhoodText = new GUIContent("Sample 8 Neighbours", "");
+	static GUIContent _OutlineOpaqueAlphaText = new GUIContent("Opaque Alpha", "If a pixel's alpha value is above this threshold it will not receive any outline color overlay. Use to exclude problematic semi-transparent areas.");
 	static GUIContent _OutlineMipLevelText = new GUIContent("Outline Mip Level", "");
 	static GUIContent _StencilCompText = new GUIContent("Stencil Comparison", "");
 	static GUIContent _StencilRefText = new GUIContent("Stencil Reference", "");
@@ -91,6 +93,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 		_ThresholdEnd = FindProperty("_ThresholdEnd", props, false);
 		_OutlineSmoothness = FindProperty("_OutlineSmoothness", props, false);
 		_Use8Neighbourhood = FindProperty("_Use8Neighbourhood", props, false);
+		_OutlineOpaqueAlpha = FindProperty("_OutlineOpaqueAlpha", props, false);
 		_OutlineMipLevel = FindProperty("_OutlineMipLevel", props, false);
 
 		_StencilComp = FindProperty("_StencilComp", props, false);
@@ -158,6 +161,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 					_materialEditor.ShaderProperty(_ThresholdEnd, _ThresholdEndText);
 					_materialEditor.ShaderProperty(_OutlineSmoothness, _OutlineSmoothnessText);
 					_materialEditor.ShaderProperty(_Use8Neighbourhood, _Use8NeighbourhoodText);
+					_materialEditor.ShaderProperty(_OutlineOpaqueAlpha, _OutlineOpaqueAlphaText);
 					_materialEditor.ShaderProperty(_OutlineMipLevel, _OutlineMipLevelText);
 				}
 			}

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader

@@ -21,6 +21,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Additive" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader

@@ -21,6 +21,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Multiply" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader

@@ -21,6 +21,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Screen" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-Outline-Common.cginc

@@ -4,7 +4,7 @@
 float4 computeOutlinePixel(sampler2D mainTexture, float2 mainTextureTexelSize,
 	float2 uv, float vertexColorAlpha,
 	float OutlineWidth, float OutlineReferenceTexWidth, float OutlineMipLevel,
-	float OutlineSmoothness, float ThresholdEnd, float4 OutlineColor) {
+	float OutlineSmoothness, float ThresholdEnd, float OutlineOpaqueAlpha, float4 OutlineColor) {
 
 	float4 texColor = fixed4(0, 0, 0, 0);
 
@@ -36,7 +36,18 @@ float4 computeOutlinePixel(sampler2D mainTexture, float2 mainTextureTexelSize,
 #endif
 	float thresholdStart = ThresholdEnd * (1.0 - OutlineSmoothness);
 	float outlineAlpha = saturate(saturate((average - thresholdStart) / (ThresholdEnd - thresholdStart)) - pixelCenter);
+	outlineAlpha = pixelCenter > OutlineOpaqueAlpha ? 0 : outlineAlpha;
 	return lerp(texColor, OutlineColor, outlineAlpha);
 }
 
+float4 computeOutlinePixel(sampler2D mainTexture, float2 mainTextureTexelSize,
+	float2 uv, float vertexColorAlpha,
+	float OutlineWidth, float OutlineReferenceTexWidth, float OutlineMipLevel,
+	float OutlineSmoothness, float ThresholdEnd, float4 OutlineColor) {
+
+	return computeOutlinePixel(mainTexture, mainTextureTexelSize,
+		uv, vertexColorAlpha, OutlineWidth, OutlineReferenceTexWidth, OutlineMipLevel,
+		OutlineSmoothness, ThresholdEnd, 1.0, OutlineColor);
+}
+
 #endif

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/BlendModes/Spine-Skeleton-PMA-Additive-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Blend Modes/Skeleton PMA Additive" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/BlendModes/Spine-Skeleton-PMA-Multiply-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Blend Modes/Skeleton PMA Multiply" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/BlendModes/Spine-Skeleton-PMA-Screen-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Blend Modes/Skeleton PMA Screen" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/CGIncludes/Spine-Outline-Pass.cginc

@@ -16,6 +16,7 @@ float4 _OutlineColor;
 float4 _MainTex_TexelSize;
 float _ThresholdEnd;
 float _OutlineSmoothness;
+float _OutlineOpaqueAlpha;
 float _OutlineMipLevel;
 int _OutlineReferenceTexWidth;
 
@@ -80,7 +81,7 @@ float4 fragOutline(VertexOutput i) : SV_Target {
 
 	float4 texColor = computeOutlinePixel(_MainTex, _MainTex_TexelSize.xy, i.uv, i.vertexColorAlpha,
 		_OutlineWidth, _OutlineReferenceTexWidth, _OutlineMipLevel,
-		_OutlineSmoothness, _ThresholdEnd, _OutlineColor);
+		_OutlineSmoothness, _ThresholdEnd, _OutlineOpaqueAlpha, _OutlineColor);
 
 #ifdef SKELETON_GRAPHIC
 	texColor *= UnityGet2DClipping(i.worldPosition.xy, _ClipRect);

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/SkeletonGraphic/Spine-SkeletonGraphic-Outline.shader

@@ -26,6 +26,7 @@ Shader "Spine/Outline/SkeletonGraphic"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/SkeletonGraphic/Spine-SkeletonGraphic-TintBlack-Outline.shader

@@ -28,6 +28,7 @@ Shader "Spine/Outline/SkeletonGraphic Tint Black"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Fill-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Fill" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 	SubShader {

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Lit-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Skeleton Lit" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Lit-ZWrite-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Lit ZWrite" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Outline.shader

@@ -15,6 +15,7 @@ Shader "Spine/Outline/Skeleton" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-OutlineOnly-ZWrite.shader

@@ -14,6 +14,7 @@ Shader "Spine/Outline/OutlineOnly-ZWrite" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Tint-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Tint" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-TintBlack-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Tint Black" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Special-Skeleton-Grayscale-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Special/Skeleton Grayscale" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Sprite/SpritesPixelLit-Outline.shader

@@ -53,6 +53,7 @@ Shader "Spine/Outline/Sprite/Pixel Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Sprite/SpritesUnlit-Outline.shader

@@ -36,6 +36,7 @@ Shader "Spine/Outline/Sprite/Unlit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Sprite/SpritesVertexLit-Outline.shader

@@ -54,6 +54,7 @@ Shader "Spine/Outline/Sprite/Vertex Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-Additive.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic Additive"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-Multiply.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic Multiply"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-Screen.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic Screen"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-TintBlack.shader

@@ -29,6 +29,7 @@ Shader "Spine/SkeletonGraphic Tint Black"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Fill.shader

@@ -19,6 +19,7 @@ Shader "Spine/Skeleton Fill" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 	SubShader {

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Lit-ZWrite.shader

@@ -20,6 +20,7 @@ Shader "Spine/Skeleton Lit ZWrite" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Lit.shader

@@ -19,6 +19,7 @@ Shader "Spine/Skeleton Lit" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Tint.shader

@@ -22,6 +22,7 @@ Shader "Spine/Skeleton Tint" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-TintBlack.shader

@@ -24,6 +24,7 @@ Shader "Spine/Skeleton Tint Black" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton.shader

@@ -13,6 +13,7 @@ Shader "Spine/Skeleton" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Special-Skeleton-Grayscale.shader

@@ -18,6 +18,7 @@ Shader "Spine/Special/Skeleton Grayscale" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Sprite/SpritesPixelLit.shader

@@ -53,6 +53,7 @@ Shader "Spine/Sprite/Pixel Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Sprite/SpritesUnlit.shader

@@ -34,6 +34,7 @@ Shader "Spine/Sprite/Unlit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Sprite/SpritesVertexLit.shader

@@ -54,6 +54,7 @@ Shader "Spine/Sprite/Vertex Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Include/Spine-Input-Outline-URP.hlsl

@@ -17,6 +17,7 @@ float4 _OutlineColor;
 float4 _MainTex_TexelSize;
 float _ThresholdEnd;
 float _OutlineSmoothness;
+float _OutlineOpaqueAlpha;
 float _OutlineMipLevel;
 int _OutlineReferenceTexWidth;
 CBUFFER_END

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Include/Spine-Outline-Pass-URP.hlsl

@@ -32,11 +32,11 @@ VertexOutput vertOutline(VertexInput v) {
 	return o;
 }
 
-float4 fragOutline(VertexOutput i) : SV_Target{
+float4 fragOutline(VertexOutput i) : SV_Target {
 
 	float4 texColor = computeOutlinePixel(_MainTex, _MainTex_TexelSize.xy, i.uv, i.vertexColorAlpha,
 		_OutlineWidth, _OutlineReferenceTexWidth, _OutlineMipLevel,
-		_OutlineSmoothness, _ThresholdEnd, _OutlineColor);
+		_OutlineSmoothness, _ThresholdEnd, _OutlineOpaqueAlpha, _OutlineColor);
 	return texColor;
 }
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Outline/Spine-Skeleton-OutlineOnly-URP.shader

@@ -11,6 +11,7 @@ Shader "Universal Render Pipeline/Spine/Outline/Skeleton-OutlineOnly" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/package.json

@@ -2,7 +2,7 @@
   "name": "com.esotericsoftware.spine.urp-shaders",
   "displayName": "Spine Universal RP Shaders",
   "description": "This plugin provides universal render pipeline (URP) shaders for the spine-unity runtime.\n\nPrerequisites:\nIt requires a working installation of the spine-unity runtime, version 4.1.\n(See http://esotericsoftware.com/git/spine-runtimes/spine-unity)",
-  "version": "4.1.3",
+  "version": "4.1.4",
   "unity": "2019.3",
   "author": {
     "name": "Esoteric Software",