Added a simple low end shader

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandardLowEnd.shader

+// Shader targeted for low end devices. Single Pass Forward Rendering. Shader Model 2
+Shader "LightweightPipeline/Standard (Low End)"
+{
+    // Keep properties of StandardSpecular shader for upgrade reasons.
+    Properties
+    {
+        _Color("Color", Color) = (1,1,1,1)
+        _MainTex("Base (RGB) Glossiness / Alpha (A)", 2D) = "white" {}
+
+        _Cutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5
+
+        _Shininess("Shininess", Range(0.01, 1.0)) = 1.0
+        _GlossMapScale("Smoothness Factor", Range(0.0, 1.0)) = 1.0
+
+        _Glossiness("Glossiness", Range(0.0, 1.0)) = 0.5
+        [Enum(Specular Alpha,0,Albedo Alpha,1)] _SmoothnessTextureChannel("Smoothness texture channel", Float) = 0
+
+        [HideInInspector] _SpecSource("Specular Color Source", Float) = 0.0
+        _SpecColor("Specular", Color) = (1.0, 1.0, 1.0)
+        _SpecGlossMap("Specular", 2D) = "white" {}
+        [HideInInspector] _GlossinessSource("Glossiness Source", Float) = 0.0
+        [ToggleOff] _SpecularHighlights("Specular Highlights", Float) = 1.0
+        [ToggleOff] _GlossyReflections("Glossy Reflections", Float) = 1.0
+
+        [HideInInspector] _BumpScale("Scale", Float) = 1.0
+        [NoScaleOffset] _BumpMap("Normal Map", 2D) = "bump" {}
+
+        _Parallax("Height Scale", Range(0.005, 0.08)) = 0.02
+        _ParallaxMap("Height Map", 2D) = "black" {}
+
+        _EmissionColor("Emission Color", Color) = (0,0,0)
+        _EmissionMap("Emission", 2D) = "white" {}
+
+        _DetailMask("Detail Mask", 2D) = "white" {}
+
+        _DetailAlbedoMap("Detail Albedo x2", 2D) = "grey" {}
+        _DetailNormalMapScale("Scale", Float) = 1.0
+        _DetailNormalMap("Normal Map", 2D) = "bump" {}
+
+        [Enum(UV0,0,UV1,1)] _UVSec("UV Set for secondary textures", Float) = 0
+
+        // Blending state
+        [HideInInspector] _Mode("__mode", Float) = 0.0
+        [HideInInspector] _SrcBlend("__src", Float) = 1.0
+        [HideInInspector] _DstBlend("__dst", Float) = 0.0
+        [HideInInspector] _ZWrite("__zw", Float) = 1.0
+    }
+
+    SubShader
+    {
+        Tags { "RenderType" = "Opaque" "RenderPipeline" = "LightweightPipeline" }
+        LOD 300
+
+        Pass
+        {
+            Tags { "LightMode" = "LightweightForward" }
+
+            // Use same blending / depth states as Standard shader
+            Blend[_SrcBlend][_DstBlend]
+            ZWrite[_ZWrite]
+
+            HLSLPROGRAM
+            // Required to compile gles 2.0 with standard srp library
+            #pragma prefer_hlslcc gles
+            #pragma target 3.0
+
+            // -------------------------------------
+            // Material Keywords
+            #pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON
+            #pragma shader_feature _ _SPECGLOSSMAP _SPECULAR_COLOR
+            #pragma shader_feature _ _GLOSSINESS_FROM_BASE_ALPHA
+            #pragma shader_feature _NORMALMAP
+            #pragma shader_feature _EMISSION
+
+            // -------------------------------------
+            // Lightweight Pipeline keywords
+            #pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
+            #pragma multi_compile _ FOG_LINEAR
+
+            // -------------------------------------
+            // Unity defined keywords
+            #pragma multi_compile _ DIRLIGHTMAP_COMBINED
+            #pragma multi_compile _ LIGHTMAP_ON
+
+            //--------------------------------------
+            // GPU Instancing
+            #pragma multi_compile_instancing
+
+            #pragma vertex LitPassVertex
+            #pragma fragment LitPassFragmentSimple
+            #include "LWRP/ShaderLibrary/LightweightPassLit.hlsl"
+            ENDHLSL
+        }
+
+        Pass
+        {
+            Tags{"Lightmode" = "ShadowCaster"}
+
+            ZWrite On ZTest LEqual
+
+            HLSLPROGRAM
+            // Required to compile gles 2.0 with standard srp library
+            #pragma prefer_hlslcc gles
+            #pragma target 2.0
+
+            //--------------------------------------
+            // GPU Instancing
+            #pragma multi_compile_instancing
+
+            #pragma vertex ShadowPassVertex
+            #pragma fragment ShadowPassFragment
+
+            #include "LWRP/ShaderLibrary/LightweightPassShadow.hlsl"
+            ENDHLSL
+        }
+
+        Pass
+        {
+            Tags{"Lightmode" = "DepthOnly"}
+
+            ZWrite On
+            ColorMask 0
+
+            HLSLPROGRAM
+            // Required to compile gles 2.0 with standard srp library
+            #pragma prefer_hlslcc gles
+            #pragma target 2.0
+            #pragma vertex vert
+            #pragma fragment frag
+
+            #include "LWRP/ShaderLibrary/Core.hlsl"
+
+            float4 vert(float4 pos : POSITION) : SV_POSITION
+            {
+                return TransformObjectToHClip(pos.xyz);
+            }
+
+            half4 frag() : SV_TARGET
+            {
+                return 0;
+            }
+            ENDHLSL
+        }
+
+        // This pass it not used during regular rendering, only for lightmap baking.
+        Pass
+        {
+            Tags{ "LightMode" = "Meta" }
+
+            Cull Off
+
+            HLSLPROGRAM
+            // Required to compile gles 2.0 with standard srp library
+            #pragma prefer_hlslcc gles
+            #pragma vertex LightweightVertexMeta
+            #pragma fragment LightweightFragmentMetaSimple
+
+            #pragma shader_feature _EMISSION
+            #pragma shader_feature _SPECGLOSSMAP
+
+            #include "LWRP/ShaderLibrary/LightweightPassMeta.hlsl"
+            ENDHLSL
+        }
+    }
+    Fallback "Hidden/InternalErrorShader"
+    CustomEditor "LightweightStandardSimpleLightingGUI"
+}