From 8dfe72967a83fa6892ea8e4d2344b887152c98ae Mon Sep 17 00:00:00 2001
From: yuanjiajia <1139393632@qq.com>
Date: Fri, 21 Jul 2023 16:17:18 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B8=B2=E6=9F=93=E6=B5=8B=E5=BC=8F=20?=
 =?UTF-8?q?=E5=BC=80=E5=8F=91?=
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---
 src/utils/MatHelper.php | 73 ++++++++++++++++++++++++-----------------
 1 file changed, 42 insertions(+), 31 deletions(-)

diff --git a/src/utils/MatHelper.php b/src/utils/MatHelper.php
index 0bdd6ef..b2f46af 100644
--- a/src/utils/MatHelper.php
+++ b/src/utils/MatHelper.php
@@ -14,7 +14,8 @@ use GuzzleHttp\RequestOptions;
 use Imagick;
 use OzdemirBurak\Iris\Color\Factory;
 use OzdemirBurak\Iris\Color\Hsv;
-
+use OzdemirBurak\Iris\Color\Rgb;
+use OzdemirBurak\Iris\Color\Rgba;
 
 class MatHelper{
 
@@ -60,6 +61,32 @@ class MatHelper{
         return $hexColor;
     }
 
+    /**
+     * rgb色 转 十六进制颜色
+     */
+    static function rgbToHexColor($rgbColor, $scale = 1){
+        $color = Factory::init(trim($rgbColor));
+        $r = round($color->values()[0] * $scale);
+        $g = round($color->values()[1] * $scale);
+        $b = round($color->values()[2] * $scale);
+        $hexColor = (new Rgb("rgb({$r}, {$g}, {$b})"))->toHex();
+        return trim($hexColor);
+    }
+
+    /**
+     * hexa颜色 转 rgba色
+     */
+    static function hexaToRgbaColor($hexaColor, $scale = 1, $alphaScale = 1){
+        $color = Factory::init(trim($hexaColor));
+        $rgbaColor = $color->toRgba();
+        $r = round($rgbaColor->values()[0] * $scale);
+        $g = round($rgbaColor->values()[1] * $scale);
+        $b = round($rgbaColor->values()[2] * $scale);
+        $a = $rgbaColor->values()[3] * $alphaScale;
+        $rgbaColor = new Rgba("rgba({$r}, {$g}, {$b}, {$a})");
+        return trim($rgbaColor);
+    }
+
 
     /**
      * 创建一个 Disney 的材质
@@ -475,9 +502,17 @@ class MatHelper{
             $textureSavaHandle = fopen($textureSavaPath, "w");
             (new Client())->get($textureUrl, [RequestOptions::SINK => $textureSavaHandle]);
 
+            // 生成 透射 纹理
+            $transmissionTexture = new ImageMap(
+                ['file' => $textureSavaPath]
+            );
+            $transmissionTexture->mapping = $mapping;
+            $scene->registerTexture($transmissionTexture);
+            $material->setTransmission($transmissionTexture);
+
+            // 生成 漫反射颜色 纹理
             $fileName = preg_replace('/(\.[^\.]+)$/','',basename($textureSavaPath));
             $extension = preg_replace('/^('.$fileName.')+/','',basename($textureSavaPath));
-            // 生成 漫反射颜色 纹理
             $diffuseReflectionTextureSavaPath = $cacheFileDir.'/'.$fileName.'_diffuseReflection'.$extension;
             $imagick = new Imagick($textureSavaPath);
             $imageIterator = $imagick->getPixelIterator();
@@ -485,11 +520,11 @@ class MatHelper{
                 foreach ($pixels as $column => $pixel) {
                     // 获取每个像素色值;
                     $value = $pixel->getColor();
-                    $r = round($value["r"] * (1 - $translucencyIntensity));
-                    $g = round($value["g"] * (1 - $translucencyIntensity));
-                    $b = round($value["b"] * (1 - $translucencyIntensity));
-                    $a = $value["a"];
-                    $pixel->setColor("rgba({$r}, {$g}, {$b}, {$a})");
+                    $hexColor = self::rgbToHexColor("rgb({$value["r"]}, {$value["g"]}, {$value["b"]})");
+                    $hexColor = self::colorMaxBrightness($hexColor,$translucencyIntensity ** (1/2.2));
+                    $hexaColor = $hexColor . dechex(round($value["a"] * 255));
+                    $rgbaColor = self::hexaToRgbaColor($hexaColor, 1 - $translucencyIntensity);
+                    $pixel->setColor($rgbaColor);
                 }
                 $imageIterator->syncIterator();
             }
@@ -501,30 +536,6 @@ class MatHelper{
             $diffuseReflectionTexture->mapping = $mapping;
             $scene->registerTexture($diffuseReflectionTexture);
             $material->setBaseColor($diffuseReflectionTexture);
-            // 生成 透射 纹理
-            $transmissionTextureSavaPath = $cacheFileDir.'/'.$fileName.'_transmission'.$extension;
-            $imagick = new Imagick($textureSavaPath);
-            $imageIterator = $imagick->getPixelIterator();
-            foreach ($imageIterator as $row => $pixels) {
-                foreach ($pixels as $column => $pixel) {
-                    // 获取每个像素色值;
-                    $value = $pixel->getColor();
-                    $r = round($value["r"] * $translucencyIntensity);
-                    $g = round($value["g"] * $translucencyIntensity);
-                    $b = round($value["b"] * $translucencyIntensity);
-                    $a = $value["a"];
-                    $pixel->setColor("rgba({$r}, {$g}, {$b}, {$a})");
-                }
-                $imageIterator->syncIterator();
-            }
-            $imagick->setImageCompressionQuality(100);
-            $imagick->writeImage($transmissionTextureSavaPath);
-            $transmissionTexture = new ImageMap(
-                ['file' => $transmissionTextureSavaPath]
-            );
-            $transmissionTexture->mapping = $mapping;
-            $scene->registerTexture($transmissionTexture);
-            $material->setTransmission($transmissionTexture);
         }
 
         // 加载 粗糙度 纹理