Possible fix for ghost rendering in older devices

Author: Vwing

Assets/Shaders/GhostShader.shader

@@ -1,57 +1,77 @@
 Shader "Daggerfall/GhostShader" {
-	Properties {
+    Properties {
         _Color("Color", Color) = (1,1,1,1)
-		_MainTex ("Albedo (RGB)", 2D) = "white" {}
+        _MainTex ("Albedo (RGB)", 2D) = "white" {}
         _BumpMap ("Bumpmap", 2D) = "bump" {}
         _EmissionMap("Emission Map", 2D) = "white" {}
         _EmissionColor("Emission Color", Color) = (1,1,1)
         _Cutoff ("Alpha Cutoff", Range(0.0, 1.0)) = 0.5
-		_Glossiness ("Smoothness", Range(0.0, 1.0)) = 0.0
-		_Metallic ("Metallic", Range(0.0, 1.0)) = 0.0
-	}
-	SubShader {
-		Tags { "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
-		LOD 200
+        _Glossiness ("Smoothness", Range(0.0, 1.0)) = 0.0
+        _Metallic ("Metallic", Range(0.0, 1.0)) = 0.0
+    }
 
-		CGPROGRAM
-		// Physically based Standard lighting model
-		#pragma surface surf Standard alpha:blend
-
-		// Use shader model 3.0 target, to get nicer looking lighting
-		#pragma target 3.0
+    // 1) SM3.0 / GLES3+ variant
+    SubShader {
+        Tags { "Queue"="Transparent" "RenderType"="Transparent" }
+        CGPROGRAM
+        #pragma surface surf Standard alpha:blend
+        #pragma target 3.0
 
         half4 _Color;
-		sampler2D _MainTex;
-        sampler2D _BumpMap;
-        sampler2D _EmissionMap;
+        sampler2D _MainTex, _BumpMap, _EmissionMap;
         half4 _EmissionColor;
-        
-		struct Input {
-			float2 uv_MainTex;
+        half _Cutoff, _Glossiness, _Metallic;
+
+        struct Input {
+            float2 uv_MainTex;
             float2 uv_BumpMap;
             float2 uv_EmissionMap;
-		};
-        
-        half _Cutoff;
-		half _Glossiness;
-		half _Metallic;
-
-		void surf (Input IN, inout SurfaceOutputStandard o) {
-			// Albedo comes from a texture tinted by color
-			fixed4 c = tex2D (_MainTex, IN.uv_MainTex) * _Color;
-            clip (c.a - _Cutoff);
-            
+        };
+
+        void surf (Input IN, inout SurfaceOutputStandard o) {
+            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
+            clip(c.a - _Cutoff);
+
             half3 emission = tex2D(_EmissionMap, IN.uv_EmissionMap).rgb * _EmissionColor;
-			o.Albedo = c.rgb - emission; // Emission cancels out other lights
-            o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
+            o.Albedo   = c.rgb - emission;
+            o.Normal   = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
             o.Emission = emission;
-			// Metallic and smoothness come from slider variables
-			o.Metallic = _Metallic;
-			o.Smoothness = _Glossiness;
-            // Transparency comes from albedo alpha - allows parts some parts of image to be transparent (e.g. body) and other parts opaque (e.g. eyes)
-			o.Alpha = c.a;
-		}
-		ENDCG
-	}
-	FallBack "Diffuse"
+            o.Metallic = _Metallic;
+            o.Smoothness = _Glossiness;
+            o.Alpha    = c.a;
+        }
+        ENDCG
+    }
+
+    // 2) SM2.0 / GLES2 fallback
+    SubShader {
+        Tags { "Queue"="Transparent" "RenderType"="Transparent" }
+        CGPROGRAM
+        #pragma surface surf Lambert alpha:blend   // use a simpler lighting model
+        #pragma target 2.0
+
+        half4 _Color;
+        sampler2D _MainTex, _BumpMap, _EmissionMap;
+        half4 _EmissionColor;
+        half _Cutoff;
+
+        struct Input {
+            float2 uv_MainTex;
+            float2 uv_BumpMap;
+            float2 uv_EmissionMap;
+        };
+
+        void surf (Input IN, inout SurfaceOutput o) {
+            fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
+            clip(c.a - _Cutoff);
+
+            o.Albedo = c.rgb;
+            o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
+            o.Emission = tex2D(_EmissionMap, IN.uv_EmissionMap).rgb * _EmissionColor.rgb;
+            o.Alpha = c.a;
+        }
+        ENDCG
+    }
+
+    FallBack "Diffuse"
 }