从旧版中移植,Prefab未确认

Convention/[Art]/GridFull/Grid2DFull/Grid2DFull-XY.shader

@@ -0,0 +1,99 @@
+Shader "GridFull/2DFull"
+{
+    Properties
+    {
+        _ColorLevel("Color Level",Range(0,1)) =1
+    }
+    SubShader
+    {
+        Tags{
+            "RenderPipeline"="UniversalRenderPipeline"
+            "RenderType"="Transparent"
+            "IgnoreProjector"="True"
+            "Queue"="Transparent"
+            "PreviewType"="Plane"
+        }
+        Pass
+        {
+            Blend SrcAlpha OneMinusSrcAlpha
+            ZWrite Off
+            Cull off
+            HLSLPROGRAM
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+            #pragma vertex vert
+            #pragma fragment frag
+
+            half _ColorLevel;
+
+            struct Attributes
+            {
+                float4 positionOS : POSITION;
+                float2 uv : TEXCOORD0;
+            };
+            struct Varings
+            {
+                float4 positionCS : SV_POSITION;
+                float3 nearPoint : TEXCOORD0;
+                float3 farPoint : TEXCOORD1;
+            };
+            float3 TransformHClipToWorld(float3 positionCS, float4x4 inv_VP)
+            {
+                float4 unprojectedPoint =  mul(inv_VP, float4(positionCS, 1.0));
+                return unprojectedPoint.xyz / unprojectedPoint.w;
+            }
+            Varings vert(Attributes input)
+            {
+                Varings o;
+                float2 uv = input.uv * 2.0 - 1.0;
+                half farPlane = 1;
+                half nearPlane = 0;
+
+                #if defined(UNITY_REVERSED_Z)
+                    farPlane = 1 - farPlane;
+                    nearPlane = 1 - nearPlane;
+                #endif
+
+                float4 position = float4(uv, farPlane, 1);
+                float3 nearPoint = TransformHClipToWorld(float3(position.xy, nearPlane), UNITY_MATRIX_I_VP);
+                float3 farPoint = TransformHClipToWorld(float3(position.xy, farPlane), UNITY_MATRIX_I_VP);
+                o.positionCS = position;
+                o.nearPoint = nearPoint;
+                o.farPoint = farPoint;
+                return o;
+            }
+            float computeViewZ(float3 pos) {
+                float4 clip_space_pos = mul(UNITY_MATRIX_VP, float4(pos.xyz, 1.0));
+                float viewZ = clip_space_pos.w;
+                return viewZ;
+            }
+            half Grid(float2 uv){
+                float2 derivative = fwidth(uv);
+                uv = frac(uv - 0.5);
+                uv = abs(uv - 0.5);
+                uv = uv / derivative;
+                float min_value = min(uv.x, uv.y);
+                half grid = 1.0 - min(min_value, 1.0);
+                return grid;
+            }
+            half4 frag(Varings input) : SV_TARGET{
+                float t = -input.nearPoint.z / (input.farPoint.z - input.nearPoint.z);
+                float3 positionWS = input.nearPoint + t * (input.farPoint - input.nearPoint);
+                half ground = step(0, t);
+
+                float3 cameraPos = _WorldSpaceCameraPos;
+                float fromOrigin = abs(cameraPos.z);
+
+                float viewZ = computeViewZ(positionWS);
+                float2 uv = positionWS.xy;
+                float fading = max(0.0, 1.0 - viewZ / 150);
+                half smallGrid = Grid(uv) * lerp(1, 0, min(1.0, fromOrigin / 100));
+                half middleGrid  = Grid(uv * 0.1) * lerp(1, 0, min(1.0, fromOrigin / 300));
+                half largeGrid = Grid(uv * 0.01) * lerp(1, 0, min(1.0, fromOrigin / 800));
+
+                half grid = smallGrid + middleGrid + largeGrid;
+                return half4(0.5, 0.5, 0.5 ,ground * grid * fading * 0.5 * _ColorLevel);
+            }
+            ENDHLSL
+        }
+    }
+}