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Runtime/Engine/Code/Graphics/Pixelize/Pixelize.shader

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+Shader "Hidden/Szafa/Pixelize"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white"
+    }
+
+    SubShader
+    {
+        Tags
+        {
+            "RenderType"="Opaque" "RenderPipeline" = "UniversalPipeline"
+        }
+
+        HLSLINCLUDE
+        #pragma vertex vert
+        #pragma fragment frag
+
+        #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+
+        struct Attributes
+        {
+            float4 positionOS : POSITION;
+            float2 uv : TEXCOORD0;
+        };
+
+        struct Varyings
+        {
+            float4 positionHCS : SV_POSITION;
+            float2 uv : TEXCOORD0;
+        };
+
+        TEXTURE2D(_MainTex);
+        float4 _MainTex_TexelSize;
+        float4 _MainTex_ST;
+
+        SamplerState sampler_point_clamp;
+
+        uniform float2 _BlockCount;
+        uniform float2 _BlockSize;
+        uniform float2 _HalfBlockSize;
+
+        Varyings vert(Attributes IN)
+        {
+            Varyings OUT;
+            OUT.positionHCS = TransformObjectToHClip(IN.positionOS.xyz);
+            OUT.uv = TRANSFORM_TEX(IN.uv, _MainTex);
+            return OUT;
+        }
+        ENDHLSL
+
+        Pass
+        {
+            Name "Pixelation"
+
+            HLSLPROGRAM
+            half4 frag(Varyings IN) : SV_TARGET
+            {
+                float2 blockPos = floor(IN.uv * _BlockCount);
+                float2 blockCenter = blockPos * _BlockSize + _HalfBlockSize;
+
+                float4 tex = SAMPLE_TEXTURE2D(_MainTex, sampler_point_clamp, blockCenter);
+                return tex;
+            }
+            ENDHLSL
+        }
+    }
+}