[unity] Spine LWRP shaders package: Added LWRP version of "Spine/Skeleton" shader. The normal shader no longer worked in LWRP setting on Unity 2019.1.6+ on Android GLES 3.0 (due to instancing problems). Closes #1446.

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/Shaders/CGIncludes/Spine-Skeleton-ForwardPass-LW.hlsl

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+#ifndef SKELETON_FORWARD_PASS_LW_INCLUDED
+#define SKELETON_FORWARD_PASS_LW_INCLUDED
+
+struct appdata {
+	float3 pos : POSITION;
+	half4 color : COLOR;
+	float2 uv0 : TEXCOORD0;
+	
+	UNITY_VERTEX_INPUT_INSTANCE_ID
+};
+
+struct VertexOutput {
+	half4 color : COLOR0;
+	float2 uv0 : TEXCOORD0;
+	float4 pos : SV_POSITION;
+	UNITY_VERTEX_OUTPUT_STEREO
+};
+
+VertexOutput vert(appdata v) {
+	VertexOutput o;
+	UNITY_SETUP_INSTANCE_ID(v);
+	UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);
+
+	float3 positionWS = TransformObjectToWorld(v.pos);
+	o.pos = TransformWorldToHClip(positionWS);
+	o.uv0 = v.uv0;
+	o.color = v.color;
+	return o;
+}
+
+sampler2D _MainTex;
+
+half4 frag(VertexOutput i) : SV_Target{
+	float4 texColor = tex2D(_MainTex, i.uv0);
+
+	#if defined(_STRAIGHT_ALPHA_INPUT)
+	texColor.rgb *= texColor.a;
+	#endif
+
+	return (texColor * i.color);
+}
+
+#endif

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/Shaders/CGIncludes/Spine-Skeleton-ForwardPass-LW.hlsl.meta

@@ -0,0 +1,9 @@
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+guid: 7b0e8ff465c74264ab0348b088f52d7e
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  nonModifiableTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/Shaders/Spine-Skeleton-LW.shader

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+Shader "Lightweight Render Pipeline/Spine/Skeleton" {
+	Properties {
+		_Cutoff("Shadow alpha cutoff", Range(0,1)) = 0.1
+		[NoScaleOffset] _MainTex("Main Texture", 2D) = "black" {}
+		[Toggle(_STRAIGHT_ALPHA_INPUT)] _StraightAlphaInput("Straight Alpha Texture", Int) = 0
+		[HideInInspector] _StencilRef("Stencil Reference", Float) = 1.0
+		[Enum(UnityEngine.Rendering.CompareFunction)] _StencilComp("Stencil Comparison", Float) = 8 // Set to Always as default
+	}
+
+	SubShader {
+		// Lightweight Pipeline tag is required. If Lightweight render pipeline is not set in the graphics settings
+		// this Subshader will fail.
+		Tags { "RenderPipeline" = "LightweightPipeline" "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" }
+		LOD 100
+		Cull Off
+		ZWrite Off
+		Blend One OneMinusSrcAlpha
+		
+		Stencil {
+			Ref[_StencilRef]
+			Comp[_StencilComp]
+			Pass Keep
+		}
+
+		Pass {
+			Name "Forward"
+			Tags{"LightMode" = "LightweightForward"}
+
+			ZWrite Off
+			Cull Off
+			Blend One OneMinusSrcAlpha
+
+			HLSLPROGRAM
+			// Required to compile gles 2.0 with standard srp library
+			#pragma prefer_hlslcc gles
+			#pragma exclude_renderers d3d11_9x
+			#pragma target 2.0
+
+			// -------------------------------------
+			// Lightweight Pipeline keywords
+			#pragma multi_compile _ _MAIN_LIGHT_SHADOWS
+			#pragma multi_compile _ _MAIN_LIGHT_SHADOWS_CASCADE
+			#pragma multi_compile _ _ADDITIONAL_LIGHT_SHADOWS
+			#pragma multi_compile _ _SHADOWS_SOFT
+			
+			// -------------------------------------
+			// Unity defined keywords
+			#pragma multi_compile_fog
+
+			//--------------------------------------
+			// GPU Instancing
+			#pragma multi_compile_instancing
+
+			//--------------------------------------
+			// Spine related keywords
+			#pragma shader_feature _ _STRAIGHT_ALPHA_INPUT
+			#pragma vertex vert
+			#pragma fragment frag
+			#pragma target 2.0
+
+			#undef LIGHTMAP_ON
+
+			#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Core.hlsl"
+			#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Lighting.hlsl"
+
+			#define USE_LWRP
+			#define fixed4 half4
+			#define fixed3 half3
+			#define fixed half
+			#include "CGIncludes/Spine-Skeleton-ForwardPass-LW.hlsl"
+			ENDHLSL
+	 	}
+
+		Pass
+		{
+			Name "ShadowCaster"
+			Tags{"LightMode" = "ShadowCaster"}
+
+			ZWrite On
+			ZTest LEqual
+			Cull Off
+
+			HLSLPROGRAM
+			// Required to compile gles 2.0 with standard srp library
+			#pragma prefer_hlslcc gles
+			#pragma exclude_renderers d3d11_9x
+			#pragma target 2.0
+
+			// -------------------------------------
+			// Material Keywords
+			#pragma shader_feature _ALPHATEST_ON
+
+			//--------------------------------------
+			// GPU Instancing
+			#pragma multi_compile_instancing
+			#pragma shader_feature _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
+
+			#pragma vertex ShadowPassVertexSkeletonLit
+			#pragma fragment ShadowPassFragmentSkeletonLit
+
+			#include "Packages/com.unity.render-pipelines.lightweight/Shaders/LitInput.hlsl"
+			#include "Packages/com.unity.render-pipelines.lightweight/Shaders/ShadowCasterPass.hlsl"
+
+			#define USE_LWRP
+			#define fixed4 half4
+			#define fixed3 half3
+			#define fixed half
+			#include "CGIncludes/Spine-Input-LW.hlsl"
+			#include "CGIncludes/Spine-SkeletonLit-ShadowCasterPass-LW.hlsl"
+
+			ENDHLSL
+		}
+
+		Pass
+		{
+			Name "DepthOnly"
+			Tags{"LightMode" = "DepthOnly"}
+
+			ZWrite On
+			ColorMask 0
+			Cull Off
+
+			HLSLPROGRAM
+			// Required to compile gles 2.0 with standard srp library
+			#pragma prefer_hlslcc gles
+			#pragma exclude_renderers d3d11_9x
+			#pragma target 2.0
+
+			#pragma vertex DepthOnlyVertexSprite
+			#pragma fragment DepthOnlyFragmentSprite
+
+			// -------------------------------------
+			// Material Keywords
+			#pragma shader_feature _ALPHATEST_ON
+			#pragma shader_feature _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
+
+			//--------------------------------------
+			// GPU Instancing
+			#pragma multi_compile_instancing
+
+			#include "Packages/com.unity.render-pipelines.lightweight/Shaders/LitInput.hlsl"
+			#include "Packages/com.unity.render-pipelines.lightweight/Shaders/DepthOnlyPass.hlsl"
+
+			#define USE_LWRP
+			#define fixed4 half4
+			#define fixed3 half3
+			#define fixed half
+			#include "CGIncludes/Spine-Input-LW.hlsl"
+			#include "CGIncludes/Spine-DepthOnlyPass-LW.hlsl"
+			ENDHLSL
+		}
+	}
+
+	FallBack "Hidden/InternalErrorShader"
+}

spine-unity/Modules/com.esotericsoftware.spine.lwrp-shaders/Shaders/Spine-Skeleton-LW.shader.meta

@@ -0,0 +1,9 @@
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+guid: 65857b179c43d9c49ba05eeb3e483e87
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