diff --git a/src/utils/MatHelper.php b/src/utils/MatHelper.php
index 7de9dc3..f966094 100644
--- a/src/utils/MatHelper.php
+++ b/src/utils/MatHelper.php
@@ -34,7 +34,26 @@ class MatHelper{
         return $floatColor;
     }
 
+    /**
+     * 获得 十六进制颜色 同色调 的 最大亮度
+     */
+    static function colorMaxBrightness($hexColor){
+        $r = (hexdec(substr($hexColor, 1, 2)));
+        $g = (hexdec(substr($hexColor, 3, 2)));
+        $b = (hexdec(substr($hexColor, 5, 2)));
+
+        $MaxBrightnessPass = 0;
+        foreach([$r, $g, $b] as $value){
+            $MaxBrightnessPass = $value > $MaxBrightnessPass ? $value : $MaxBrightnessPass;
+        }
 
+        $scale = 255 / $MaxBrightnessPass;
+        $r =dechex(round($r  * $scale));
+        $g =dechex(round($g  * $scale));
+        $b =dechex(round($b  * $scale));
+
+        return "#{$r}{$g}{$b}";
+    }
 
 
     /**
@@ -411,9 +430,17 @@ class MatHelper{
             $matOriginal->matParams->translucencyColor
         ));
         $material->setBaseColor( self::hex2floatColor(
-            $matOriginal->matParams->translucencyColor,
+            self::colorMaxBrightness($matOriginal->matParams->translucencyColor),
             1 - $translucencyIntensity
         ));
+        // $material->setSpecular(
+        //     self::colorMaxBrightness($matOriginal->matParams->translucencyColor),
+        //     1 - $translucencyIntensity
+        // );
+        // $material->setSpecular_BF(
+        //     self::colorMaxBrightness($matOriginal->matParams->translucencyColor),
+        //     1 - $translucencyIntensity
+        // );
         $material->setSpecular("0.04 0.04 0.04");
         $material->setSpecular_BF("0.04 0.04 0.04");
         $material->setUroughness($matOriginal->matParams->roughness ** 2.2);