Update Game Kit Controller assets

Bulk modifications across the Game Kit Controller package: updated materials and shader, adjusted particle prefabs, and numerous prefab updates for Character Customization, Inventory, Map System, Locked Camera System, Probuilder export objects, Gravity, Health, Mission System and other scene elements. These changes appear to be a large asset rework/reimport or parameter/reference updates to keep prefabs and materials in sync.

Assets/Game Kit Controller/Shaders/Projector.shader

@@ -1,11 +1,10 @@
-Shader "Custom/URP_Projector"
-{
+Shader "Custom/Projector" {
 	Properties {
 		_Color ("Tint Color", Color) = (1,1,1,1)
 		_Attenuation ("Falloff", Range(0.0, 1.0)) = 1.0
 		_ShadowTex ("Cookie", 2D) = "gray" {}
 	}
-	SubShader {
+	Subshader {
 		Tags {"Queue"="Transparent"}
 		Pass {
 			ZWrite Off
@@ -13,51 +12,41 @@
 			Blend SrcAlpha One // Additive blending
 			Offset -1, -1
 
-			HLSLPROGRAM
+			CGPROGRAM
 			#pragma vertex vert
 			#pragma fragment frag
-			#pragma multi_compile_fog
-			#include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
-
-			struct Attributes {
-				float4 positionOS : POSITION;
+			#include "UnityCG.cginc"
+			
+			struct v2f {
+				float4 uvShadow : TEXCOORD0;
+				float4 pos : SV_POSITION;
 			};
-
-			   struct Varyings {
-				   float4 positionHCS : SV_POSITION;
-				   float4 uvShadow    : TEXCOORD0;
-				   float fogFactor    : TEXCOORD1;
-			   };
-
-			CBUFFER_START(UnityPerMaterial)
-				float4 _Color;
-				float _Attenuation;
-			CBUFFER_END
-
-			TEXTURE2D(_ShadowTex); SAMPLER(sampler_ShadowTex);
+			
 			float4x4 unity_Projector;
-
-			Varyings vert(Attributes IN)
+			float4x4 unity_ProjectorClip;
+			
+			v2f vert (float4 vertex : POSITION)
 			{
-				Varyings OUT;
-				OUT.positionHCS = TransformObjectToHClip(IN.positionOS.xyz);
-				OUT.uvShadow = mul(unity_Projector, IN.positionOS);
-			OUT.fogFactor = ComputeFogFactor(OUT.positionHCS.z / OUT.positionHCS.w);
-				return OUT;
+				v2f o;
+				o.pos = UnityObjectToClipPos (vertex);
+				o.uvShadow = mul (unity_Projector, vertex);
+				return o;
 			}
-
-			float4 frag(Varyings IN) : SV_Target
+			
+			sampler2D _ShadowTex;
+			fixed4 _Color;
+			float _Attenuation;
+			
+			fixed4 frag (v2f i) : SV_Target
 			{
-				float2 projUV = IN.uvShadow.xy / IN.uvShadow.w;
-				float4 texCookie = SAMPLE_TEXTURE2D(_ShadowTex, sampler_ShadowTex, projUV);
-				float4 outColor = _Color * texCookie.a;
-				float depth = IN.uvShadow.z;
-				float atten = clamp(1.0 - abs(depth) + _Attenuation, 0.0, 1.0);
-				float3 color = outColor.rgb * atten;
-			color = MixFog(color, IN.fogFactor);
-				return float4(color, outColor.a);
+				// Apply alpha mask
+				fixed4 texCookie = tex2Dproj (_ShadowTex, UNITY_PROJ_COORD(i.uvShadow));
+				fixed4 outColor = _Color * texCookie.a;
+				// Attenuation
+				float depth = i.uvShadow.z; // [-1 (near), 1 (far)]
+				return outColor * clamp(1.0 - abs(depth) + _Attenuation, 0.0, 1.0);
 			}
-			ENDHLSL
+			ENDCG
 		}
 	}
 }