Implement native PAL3/PAL3A effects and editing tools

.editorconfig

@@ -0,0 +1,52 @@
+root = true
+
+[*.cs]
+indent_style = space
+indent_size = 4
+# Match the existing Unity C# sources; keep each file's existing BOM.
+end_of_line = crlf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+csharp_new_line_before_open_brace = all
+csharp_new_line_before_else = true
+csharp_new_line_before_catch = true
+csharp_new_line_before_finally = true
+csharp_new_line_before_members_in_object_initializers = true
+csharp_new_line_before_members_in_anonymous_types = true
+csharp_new_line_between_query_expression_clauses = true
+csharp_indent_block_contents = true
+csharp_indent_braces = false
+csharp_indent_case_contents = true
+csharp_indent_case_contents_when_block = false
+csharp_indent_switch_labels = true
+csharp_indent_labels = one_less_than_current
+
+csharp_space_after_cast = false
+csharp_space_after_keywords_in_control_flow_statements = true
+csharp_space_between_method_declaration_parameter_list_parentheses = false
+csharp_space_between_method_declaration_empty_parameter_list_parentheses = false
+csharp_space_between_method_call_parameter_list_parentheses = false
+csharp_space_between_method_call_empty_parameter_list_parentheses = false
+csharp_space_between_parentheses = none
+csharp_space_before_colon_in_inheritance_clause = true
+csharp_space_after_colon_in_inheritance_clause = true
+csharp_space_around_binary_operators = before_and_after
+csharp_space_before_comma = false
+csharp_space_after_comma = true
+csharp_space_before_dot = false
+csharp_space_after_dot = false
+csharp_space_before_semicolon_in_for_statement = false
+csharp_space_after_semicolon_in_for_statement = true
+csharp_space_before_open_square_brackets = false
+csharp_space_between_square_brackets = false
+csharp_space_between_empty_square_brackets = false
+csharp_preserve_single_line_statements = false
+csharp_preserve_single_line_blocks = false
+
+# SDK whitespace formatting does not enforce spacing between members.
+# These targeted StyleCop rules also run through tools/format-csharp.py.
+dotnet_diagnostic.SA1107.severity = warning
+dotnet_diagnostic.SA1502.severity = warning
+dotnet_diagnostic.SA1507.severity = warning
+dotnet_diagnostic.SA1516.severity = warning

.github/CI.md

@@ -6,6 +6,20 @@ macOS, Linux, and 32-bit/64-bit Windows. The workflows run only on pull requests
 New commits cancel superseded runs for the same pull request and workflow.
 Successful desktop/Android builds upload artifacts.
 
+The separate `Code style` workflow verifies changed owned C# files with the SDK's
+`dotnet format`, using `.editorconfig` and the SDK pinned in `global.json`.
+It combines whitespace formatting with pinned StyleCop layout rules SA1107, SA1502,
+SA1507 and SA1516 to enforce separate statements, multiline blocks and blank lines
+between members. StyleCop is restored only into the temporary formatting project.
+It parses both PAL3 and PAL3A conditional branches without Unity or game data.
+Run `python3 tools/format-csharp.py` locally to format current changes, then
+`python3 tools/format-csharp.py --check` to verify them. CI selects PR changes with
+`--check --base <base-sha>`; `--all` is an explicit full-source audit, not the default.
+Default and `--base` runs apply formatting only to changed lines and deletion
+boundaries, preserving existing formatting elsewhere. Explicit file/directory
+paths and `--all` format whole files. Check mode operates on temporary copies.
+This checks whitespace and layout, not semantic correctness or Unity behavior.
+
 Codacy is not part of this repository's CI. Its repository webhook is disabled;
 there is no Codacy workflow or Codacy-required branch protection check. Re-enabling
 that external integration would resume its checks independently of these workflows.
@@ -15,8 +29,7 @@ The builder CLI is pinned to v0.1.73 so its behavior does not change independent
 of the workflow. Update and validate this pin together with builder upgrades.
 
 Keep the committed project configured for PAL3. PAL3A workflows switch their own
-checkout before building. Public builds reject imported private VFX and legacy Toon assets;
-do not add them or original game data to CI inputs.
+checkout before building. Do not add original game data to CI inputs.
 
 When investigating a failure, inspect the failed job's Unity/build logs first.
 Retry an isolated runner or network failure after checking the log; fix reproducible

.github/workflows/code-style.yml

@@ -0,0 +1,29 @@
+name: Code style
+
+on:
+  pull_request:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  csharp-format:
+    name: C# formatting (PAL3 and PAL3A)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7.0.1
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-dotnet@v5.3.0
+        with:
+          global-json-file: global.json
+      - name: Test formatter enforcement
+        run: python3 tools/tests/test-format-csharp.py
+      - name: Verify changed C# formatting
+        env:
+          BASE_REF: ${{ github.event.pull_request.base.sha }}
+        run: python3 tools/format-csharp.py --check --base "$BASE_REF"

.gitignore

@@ -77,20 +77,15 @@ crashlytics-build.properties
 # Unity StreamingAssets folder
 /Assets/StreamingAssets
 
-# 3rd party plugin/assets
-/Assets/Hovl Studio
+# VS Conde config file
+.vsconfig
+
+# Local asset imports
+/Assets/Hovl Studio/
 /Assets/Hovl Studio.meta
-/Assets/RealToon
+/Assets/RealToon/
 /Assets/RealToon.meta
-
-# VFX prefabs that are using 3rd party assets
-/Assets/Resources/Prefabs/VFX/PAL3/*.prefab
-/Assets/Resources/Prefabs/VFX/PAL3/*.meta
-/Assets/Resources/Prefabs/VFX/PAL3A/*.prefab
-/Assets/Resources/Prefabs/VFX/PAL3A/*.meta
-
-# Materials that are using 3rd party assets
+/Assets/Resources/Prefabs/VFX/
+/Assets/Resources/Prefabs/VFX.meta
 /Assets/Resources/Materials/
-
-# VS Conde config file
-.vsconfig
+/Assets/Resources/Materials.meta

Assets/Resources/Shaders/Pal3OriginalEffect.shader

@@ -0,0 +1,78 @@
+// ------------------------------------------------------------------------
+//  Copyright (c) 2026, Jiaqi (0x7c13) Liu. All rights reserved.
+//  See LICENSE file in the project root for license information.
+// ------------------------------------------------------------------------
+
+Shader "Pal3/OriginalEffect"
+{
+    Properties
+    {
+        _MainTex ("Texture", 2D) = "white" {}
+        [Enum(UnityEngine.Rendering.BlendMode)] _SrcBlend ("Source blend", Float) = 1
+        [Enum(UnityEngine.Rendering.BlendMode)] _DstBlend ("Destination blend", Float) = 1
+        [Enum(UnityEngine.Rendering.CompareFunction)] _ZTest ("Depth test", Float) = 4
+        [Enum(UnityEngine.Rendering.CullMode)] _Cull ("Cull", Float) = 0
+        _AlphaMode ("Original alpha operation", Float) = 0
+    }
+    SubShader
+    {
+        Tags
+        {
+            "RenderPipeline" = "UniversalPipeline"
+            "Queue" = "Transparent"
+            "RenderType" = "Transparent"
+        }
+        Pass
+        {
+            Tags { "LightMode" = "SRPDefaultUnlit" }
+            Blend [_SrcBlend] [_DstBlend]
+            ZTest [_ZTest]
+            ZWrite Off
+            Cull [_Cull]
+            HLSLPROGRAM
+            #pragma vertex Vert
+            #pragma fragment Frag
+            #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+            struct Attributes
+            {
+                float3 positionOS : POSITION;
+                float2 uv : TEXCOORD0;
+                half4 color : COLOR;
+            };
+            struct Varyings
+            {
+                float4 positionCS : SV_POSITION;
+                float2 uv : TEXCOORD0;
+                half4 color : COLOR;
+            };
+            TEXTURE2D(_MainTex);
+            SAMPLER(sampler_MainTex);
+            CBUFFER_START(UnityPerMaterial)
+                float _AlphaMode;
+            CBUFFER_END
+            Varyings Vert(Attributes i)
+            {
+                Varyings o;
+                o.positionCS = TransformObjectToHClip(i.positionOS);
+                o.uv = i.uv;
+                o.color = i.color;
+                return o;
+            }
+            half4 Frag(Varyings i) : SV_Target
+            {
+                half4 tex = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.uv);
+                half4 col = tex * i.color;
+                if (_AlphaMode > 1.5)
+                {
+                    col.a = tex.a;
+                }
+                else if (_AlphaMode > 0.5)
+                {
+                    col.a = saturate(tex.a + i.color.a);
+                }
+                return col;
+            }
+            ENDHLSL
+        }
+    }
+}