いろいろやってみた

Playerが蜘蛛にめり込まないようにしたい

Assets/Spider Infestation/Shaders/Normal-BumpSpecRim.shader

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+Shader "Bumped Specular Rim" {
+	Properties {
+		_Color ("Main Color", Color) = (1,1,1,1)
+		_SpecColorTexture ("Specular Color",2D) = "black" {}
+		_Shininess ("Shininess", Range (0.03, 1)) = 0.078125
+		_MainTex ("Base (RGB) Gloss (A)", 2D) = "white" {}
+		_BumpMap ("Normalmap", 2D) = "bump" {}
+		_RimColor ("Rim Color", Color) = (0.26,0.19,0.16,0.0)
+		_RimPower ("Rim Power", Range(0.5,8.0)) = 3.0
+	}
+	SubShader { 
+		Tags { "RenderType"="Opaque" }
+		LOD 400
+		
+	CGPROGRAM
+	#pragma surface surf BlinnPhong
+
+
+	sampler2D _MainTex;
+	sampler2D _BumpMap;
+	sampler2D _SpecColorTexture;
+	fixed4 _Color;
+	half _Shininess;
+	float4 _RimColor;
+    float _RimPower;
+
+	struct Input {
+		float2 uv_MainTex;
+		float2 uv_BumpMap;
+		float3 viewDir;
+	};
+
+	void surf (Input IN, inout SurfaceOutput o) {
+		fixed4 tex = tex2D(_MainTex, IN.uv_MainTex);
+		_SpecColor = tex2D(_SpecColorTexture, IN.uv_MainTex);
+		o.Albedo = tex.rgb * _Color.rgb;
+		o.Gloss = tex.a;
+		o.Alpha = tex.a * _Color.a;
+		o.Specular = _Shininess;
+		o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
+		half rim = 1.0 - saturate(dot (normalize(IN.viewDir), o.Normal));
+        o.Emission = _RimColor.rgb * pow (rim, _RimPower);
+	}
+	ENDCG
+	}
+
+	FallBack "Specular"
+	}