原因：美术提交大量2048x2048的贴图，导致工程臃肿。

方案：使用photoshop的javascript脚本批量把指定的文件夹以及所有子文件夹的贴图进行压缩。

           脚本中指定针对2048x2048的贴图进行处理。

// Photoshop JavaScript to resize TGA images with specific resolution
// and process all subfolders// Change the folder path to the folder containing your TGA images
var inputFolder = Folder.selectDialog("Select the root folder containing TGA images");// The target resolution
var targetWidth = 2048;
var targetHeight = 2048;// The new size (change these values to what you need)
var newWidth = 1024;
var newHeight = 1024;// Function to recursively process a folder
function processFolder(folder) {var files = folder.getFiles();for (var i = 0; i < files.length; i++) {var file = files[i];if (file instanceof Folder) {// Call the function recursively if it's a folderprocessFolder(file);} else if (file instanceof File && file.name.match(/\.(tga)$/i)) {// Process TGA filesvar doc = open(file);// Check if the image resolution matches the target resolutionif (doc.width == targetWidth && doc.height == targetHeight) {// Resize the imagedoc.resizeImage(UnitValue(newWidth,"px"), UnitValue(newHeight,"px"), null, ResampleMethod.BICUBIC);// Save the document in TGA formatvar saveOptions = new TargaSaveOptions();saveOptions.resolution = TargaBitsPerPixels.THIRTYTWO; // or choose EIGHT, SIXTEEN, or TWENTYFOURsaveOptions.alphaChannels = true; // Set to false if you don't need alpha channels// Save and close the documentdoc.saveAs(file, saveOptions, true, Extension.LOWERCASE);doc.close(SaveOptions.DONOTSAVECHANGES);} else {// Close the document without savingdoc.close(SaveOptions.DONOTSAVECHANGES);}}}
}// Run the function if a folder was selected
if (inputFolder) {processFolder(inputFolder);alert("Processing complete!");
}

请按照以下步骤使用此脚本：

1. 打开文本编辑器，如Notepad或TextEdit。
2. 将上述代码复制并粘贴到文本编辑器中。
3. 根据您的需求，修改newWidth和newHeight变量来设置新的尺寸。
4. 将文件保存为扩展名为.jsx的文件，例如resizeTGA.jsx。
5. 打开Photoshop。
6. 选择“文件” > “脚本” > “浏览”并选择您保存的.jsx文件来运行脚本。

确保在运行脚本之前备份您的图片。此外，根据您的Photoshop版本和设置，您可能需要在Photoshop的“首选项”中启用“允许脚本操作”选项。