feat: Spine support

close #218, close #221

Packages/src/Samples~/Spine Support/Spine-SkeletonGraphic-Fill-SoftMaskable.shader

@@ -0,0 +1,83 @@
+// This is a premultiply-alpha adaptation of the built-in Unity shader "UI/Default" in Unity 5.6.2 to allow Unity UI stencil masking.
+
+Shader "Hidden/Spine/SkeletonGraphic Fill (SoftMaskable)"
+{
+	Properties
+	{
+		_FillColor("FillColor", Color) = (1,1,1,1)
+		_FillPhase("FillPhase", Range(0, 1)) = 0
+		[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
+		[Toggle(_CANVAS_GROUP_COMPATIBLE)] _CanvasGroupCompatible("CanvasGroup Compatible", Int) = 1
+		_Color ("Tint", Color) = (1,1,1,1)
+
+		[HideInInspector][Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp ("Stencil Comparison", Float) = 8
+		[HideInInspector] _Stencil ("Stencil ID", Float) = 0
+		[HideInInspector][Enum(UnityEngine.Rendering.StencilOp)] _StencilOp ("Stencil Operation", Float) = 0
+		[HideInInspector] _StencilWriteMask ("Stencil Write Mask", Float) = 255
+		[HideInInspector] _StencilReadMask ("Stencil Read Mask", Float) = 255
+
+		[HideInInspector] _ColorMask ("Color Mask", Float) = 15
+
+		[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
+
+		// Outline properties are drawn via custom editor.
+		[HideInInspector] _OutlineWidth("Outline Width", Range(0,8)) = 3.0
+		[HideInInspector][MaterialToggle(_USE_SCREENSPACE_OUTLINE_WIDTH)] _UseScreenSpaceOutlineWidth("Width in Screen Space", Float) = 0
+		[HideInInspector] _OutlineColor("Outline Color", Color) = (1,1,0,1)
+		[HideInInspector] _OutlineReferenceTexWidth("Reference Texture Width", Int) = 1024
+		[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
+	{
+		Tags
+		{
+			"Queue"="Transparent"
+			"IgnoreProjector"="True"
+			"RenderType"="Transparent"
+			"PreviewType"="Plane"
+			"CanUseSpriteAtlas"="True"
+		}
+
+		Stencil
+		{
+			Ref [_Stencil]
+			Comp [_StencilComp]
+			Pass [_StencilOp]
+			ReadMask [_StencilReadMask]
+			WriteMask [_StencilWriteMask]
+		}
+
+		Cull Off
+		Lighting Off
+		ZWrite Off
+		ZTest LEqual
+		Fog { Mode Off }
+		Blend One OneMinusSrcAlpha
+		ColorMask [_ColorMask]
+
+		Pass
+		{
+			Name "Normal"
+
+		CGPROGRAM
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
+			#pragma shader_feature _ _CANVAS_GROUP_COMPATIBLE
+			#pragma vertex vert
+			#pragma fragment frag_softmask
+			#pragma target 2.0
+
+			#define ENABLE_FILL
+            #include "Spine-SoftMask.cginc" // Add for soft mask (Spine)
+            #pragma shader_feature_local _ SOFTMASK_EDITOR // Add for soft mask
+            #pragma shader_feature_local _ SOFTMASKABLE // Add for soft mask
+		ENDCG
+		}
+	}
+	CustomEditor "SpineShaderWithOutlineGUI"
+}

Packages/src/Samples~/Spine Support/Spine-SkeletonGraphic-Grayscale-SoftMaskable.shader

@@ -0,0 +1,82 @@
+// This is a premultiply-alpha adaptation of the built-in Unity shader "UI/Default" in Unity 5.6.2 to allow Unity UI stencil masking.
+
+Shader "Hidden/Spine/SkeletonGraphic Grayscale (SoftMaskable)"
+{
+	Properties
+	{
+		_GrayPhase("Phase", Range(0, 1)) = 1
+		[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
+		[Toggle(_CANVAS_GROUP_COMPATIBLE)] _CanvasGroupCompatible("CanvasGroup Compatible", Int) = 1
+		_Color ("Tint", Color) = (1,1,1,1)
+
+		[HideInInspector][Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp ("Stencil Comparison", Float) = 8
+		[HideInInspector] _Stencil ("Stencil ID", Float) = 0
+		[HideInInspector][Enum(UnityEngine.Rendering.StencilOp)] _StencilOp ("Stencil Operation", Float) = 0
+		[HideInInspector] _StencilWriteMask ("Stencil Write Mask", Float) = 255
+		[HideInInspector] _StencilReadMask ("Stencil Read Mask", Float) = 255
+
+		[HideInInspector] _ColorMask ("Color Mask", Float) = 15
+
+		[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
+
+		// Outline properties are drawn via custom editor.
+		[HideInInspector] _OutlineWidth("Outline Width", Range(0,8)) = 3.0
+		[HideInInspector][MaterialToggle(_USE_SCREENSPACE_OUTLINE_WIDTH)] _UseScreenSpaceOutlineWidth("Width in Screen Space", Float) = 0
+		[HideInInspector] _OutlineColor("Outline Color", Color) = (1,1,0,1)
+		[HideInInspector] _OutlineReferenceTexWidth("Reference Texture Width", Int) = 1024
+		[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
+	{
+		Tags
+		{
+			"Queue"="Transparent"
+			"IgnoreProjector"="True"
+			"RenderType"="Transparent"
+			"PreviewType"="Plane"
+			"CanUseSpriteAtlas"="True"
+		}
+
+		Stencil
+		{
+			Ref [_Stencil]
+			Comp [_StencilComp]
+			Pass [_StencilOp]
+			ReadMask [_StencilReadMask]
+			WriteMask [_StencilWriteMask]
+		}
+
+		Cull Off
+		Lighting Off
+		ZWrite Off
+		ZTest LEqual
+		Fog { Mode Off }
+		Blend One OneMinusSrcAlpha
+		ColorMask [_ColorMask]
+
+		Pass
+		{
+			Name "Normal"
+
+		CGPROGRAM
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
+			#pragma shader_feature _ _CANVAS_GROUP_COMPATIBLE
+			#pragma vertex vert
+			#pragma fragment frag_softmask
+			#pragma target 2.0
+
+			#define ENABLE_GRAYSCALE
+			#include "Spine-SoftMask.cginc" // Add for soft mask (Spine)
+            #pragma shader_feature_local _ SOFTMASK_EDITOR // Add for soft mask
+            #pragma shader_feature_local _ SOFTMASKABLE // Add for soft mask
+		ENDCG
+		}
+	}
+	CustomEditor "SpineShaderWithOutlineGUI"
+}

Packages/src/Samples~/Spine Support/Spine-SkeletonGraphic-Multiply-SoftMaskable.shader

@@ -0,0 +1,80 @@
+// This is a premultiply-alpha adaptation of the built-in Unity shader "UI/Default" in Unity 5.6.2 to allow Unity UI stencil masking.
+
+Shader "Hidden/Spine/SkeletonGraphic Multiply (SoftMaskable)"
+{
+	Properties
+	{
+		[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
+		[Toggle(_CANVAS_GROUP_COMPATIBLE)] _CanvasGroupCompatible("CanvasGroup Compatible", Int) = 1
+		_Color ("Tint", Color) = (1,1,1,1)
+
+		[HideInInspector][Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp ("Stencil Comparison", Float) = 8
+		[HideInInspector] _Stencil ("Stencil ID", Float) = 0
+		[HideInInspector][Enum(UnityEngine.Rendering.StencilOp)] _StencilOp ("Stencil Operation", Float) = 0
+		[HideInInspector] _StencilWriteMask ("Stencil Write Mask", Float) = 255
+		[HideInInspector] _StencilReadMask ("Stencil Read Mask", Float) = 255
+
+		[HideInInspector] _ColorMask ("Color Mask", Float) = 15
+
+		[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
+
+		// Outline properties are drawn via custom editor.
+		[HideInInspector] _OutlineWidth("Outline Width", Range(0,8)) = 3.0
+		[HideInInspector][MaterialToggle(_USE_SCREENSPACE_OUTLINE_WIDTH)] _UseScreenSpaceOutlineWidth("Width in Screen Space", Float) = 0
+		[HideInInspector] _OutlineColor("Outline Color", Color) = (1,1,0,1)
+		[HideInInspector] _OutlineReferenceTexWidth("Reference Texture Width", Int) = 1024
+		[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
+	{
+		Tags
+		{
+			"Queue"="Transparent"
+			"IgnoreProjector"="True"
+			"RenderType"="Transparent"
+			"PreviewType"="Plane"
+			"CanUseSpriteAtlas"="True"
+		}
+
+		Stencil
+		{
+			Ref [_Stencil]
+			Comp [_StencilComp]
+			Pass [_StencilOp]
+			ReadMask [_StencilReadMask]
+			WriteMask [_StencilWriteMask]
+		}
+
+		Cull Off
+		Lighting Off
+		ZWrite Off
+		ZTest LEqual
+		Fog { Mode Off }
+		Blend DstColor OneMinusSrcAlpha
+		ColorMask [_ColorMask]
+
+		Pass
+		{
+			Name "Normal"
+
+		CGPROGRAM
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
+			#pragma shader_feature _ _CANVAS_GROUP_COMPATIBLE
+			#pragma vertex vert
+			#pragma fragment frag_softmask
+			#pragma target 2.0
+
+			#include "Spine-SoftMask.cginc" // Add for soft mask (Spine)
+            #pragma shader_feature_local _ SOFTMASK_EDITOR // Add for soft mask
+            #pragma shader_feature_local _ SOFTMASKABLE // Add for soft mask
+		ENDCG
+		}
+	}
+	CustomEditor "SpineShaderWithOutlineGUI"
+}

Packages/src/Samples~/Spine Support/Spine-SkeletonGraphic-Screen-SoftMaskable.shader

@@ -0,0 +1,80 @@
+// This is a premultiply-alpha adaptation of the built-in Unity shader "UI/Default" in Unity 5.6.2 to allow Unity UI stencil masking.
+
+Shader "Hidden/Spine/SkeletonGraphic Screen (SoftMaskable)"
+{
+	Properties
+	{
+		[PerRendererData] _MainTex ("Sprite Texture", 2D) = "white" {}
+		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
+		[Toggle(_CANVAS_GROUP_COMPATIBLE)] _CanvasGroupCompatible("CanvasGroup Compatible", Int) = 1
+		_Color ("Tint", Color) = (1,1,1,1)
+
+		[HideInInspector][Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp ("Stencil Comparison", Float) = 8
+		[HideInInspector] _Stencil ("Stencil ID", Float) = 0
+		[HideInInspector][Enum(UnityEngine.Rendering.StencilOp)] _StencilOp ("Stencil Operation", Float) = 0
+		[HideInInspector] _StencilWriteMask ("Stencil Write Mask", Float) = 255
+		[HideInInspector] _StencilReadMask ("Stencil Read Mask", Float) = 255
+
+		[HideInInspector] _ColorMask ("Color Mask", Float) = 15
+
+		[Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
+
+		// Outline properties are drawn via custom editor.
+		[HideInInspector] _OutlineWidth("Outline Width", Range(0,8)) = 3.0
+		[HideInInspector][MaterialToggle(_USE_SCREENSPACE_OUTLINE_WIDTH)] _UseScreenSpaceOutlineWidth("Width in Screen Space", Float) = 0
+		[HideInInspector] _OutlineColor("Outline Color", Color) = (1,1,0,1)
+		[HideInInspector] _OutlineReferenceTexWidth("Reference Texture Width", Int) = 1024
+		[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
+	{
+		Tags
+		{
+			"Queue"="Transparent"
+			"IgnoreProjector"="True"
+			"RenderType"="Transparent"
+			"PreviewType"="Plane"
+			"CanUseSpriteAtlas"="True"
+		}
+
+		Stencil
+		{
+			Ref [_Stencil]
+			Comp [_StencilComp]
+			Pass [_StencilOp]
+			ReadMask [_StencilReadMask]
+			WriteMask [_StencilWriteMask]
+		}
+
+		Cull Off
+		Lighting Off
+		ZWrite Off
+		ZTest LEqual
+		Fog { Mode Off }
+		Blend One OneMinusSrcColor
+		ColorMask [_ColorMask]
+
+		Pass
+		{
+			Name "Normal"
+
+		CGPROGRAM
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
+			#pragma shader_feature _ _CANVAS_GROUP_COMPATIBLE
+			#pragma vertex vert
+			#pragma fragment frag_softmask
+			#pragma target 2.0
+
+			#include "Spine-SoftMask.cginc" // Add for soft mask (Spine)
+            #pragma shader_feature_local _ SOFTMASK_EDITOR // Add for soft mask
+            #pragma shader_feature_local _ SOFTMASKABLE // Add for soft mask
+		ENDCG
+		}
+	}
+	CustomEditor "SpineShaderWithOutlineGUI"
+}