public static class WL814q_Probe2
{
    public static string Run()
    {
        var sb = new System.Text.StringBuilder();
        string[] paths = {
            "Assets/WL/Look/Arena/Terrain/WL_ArenaTerrain.asset",
            "Assets/3DPixelArtEnvironment/Demo/Demo_Terrain.asset"
        };
        foreach (var p in paths)
        {
            var td = UnityEditor.AssetDatabase.LoadAssetAtPath<UnityEngine.TerrainData>(p);
            if (td == null) { sb.AppendLine(p + " NOT FOUND"); continue; }
            sb.AppendLine(p + " layers=" + td.terrainLayers.Length + " alphaRes=" + td.alphamapResolution
                + " alphaTex=" + td.alphamapTextureCount);
            for (int i = 0; i < td.terrainLayers.Length; i++)
                sb.AppendLine("   layer[" + i + "] = " + (td.terrainLayers[i] != null ? td.terrainLayers[i].name : "null"));
            var a = td.GetAlphamaps(0, 0, td.alphamapWidth, td.alphamapHeight);
            int n = a.GetLength(2);
            var mx = new float[n]; var sum = new float[n];
            for (int y = 0; y < a.GetLength(0); y++)
                for (int x = 0; x < a.GetLength(1); x++)
                    for (int c = 0; c < n; c++) { if (a[y, x, c] > mx[c]) mx[c] = a[y, x, c]; sum[c] += a[y, x, c]; }
            for (int c = 0; c < n; c++)
                sb.AppendLine(string.Format("   ch{0} max={1:F3} mean={2:F3}", c, mx[c], sum[c] / (a.GetLength(0) * a.GetLength(1))));
            // 중앙(아레나 안) 샘플
            if (p.Contains("Arena"))
            {
                int cx = td.alphamapWidth / 2, cy = td.alphamapHeight / 2;
                sb.AppendLine(string.Format("   center px: ch0={0:F3} ch1={1:F3}", a[cy, cx, 0], a[cy, cx, 1]));
            }
        }
        var m = UnityEditor.AssetDatabase.LoadAssetAtPath<UnityEngine.Material>(
            "Assets/3DPixelArtEnvironment/Materials/Terrain.mat");
        if (m != null && m.shader != null)
        {
            sb.AppendLine("Terrain.mat shader=" + m.shader.name + " props=" + m.shader.GetPropertyCount());
            for (int i = 0; i < m.shader.GetPropertyCount(); i++)
            {
                string pn = m.shader.GetPropertyName(i);
                if (pn.Contains("Control") || pn.Contains("Splat") || pn.Contains("Terrain") || pn.Contains("Layer")
                    || pn.Contains("Highlight") || pn.Contains("Shadow"))
                    sb.AppendLine("   " + pn + " : " + m.shader.GetPropertyType(i));
            }
        }
        // 우리 터레인 GO 상태
        var t = UnityEngine.Object.FindFirstObjectByType<UnityEngine.Terrain>();
        if (t != null)
        {
            sb.AppendLine("scene Terrain mat=" + (t.materialTemplate != null ? t.materialTemplate.name : "null")
                + " shader=" + (t.materialTemplate != null && t.materialTemplate.shader != null ? t.materialTemplate.shader.name : "?")
                + " drawInstanced=" + t.drawInstanced + " basemapDist=" + t.basemapDistance);
        }
        return sb.ToString();
    }
}