293 lines
9.8 KiB
React
293 lines
9.8 KiB
React
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/**
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* generate_inner_shadow_dataset.jsx
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*
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* Purpose:
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* Generate a systematic Inner Shadow effect dataset in Photopea.
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* Uses stringID-based ActionDescriptor for maximum Photopea compatibility.
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*
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* Logic & Workflow:
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* 1. Creates a new RGB document with transparent background.
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* 2. Adds a normal raster layer and fills the center with black.
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* 3. Applies one Inner Shadow effect via ActionDescriptor (stringID).
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* 4. Hides the background layer.
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* 5. Saves the result as a transparent PNG.
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*
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* Usage:
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* 1. Open https://www.photopea.com in a browser.
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* 2. Alt+Ctrl+I (or File > Automate > Script).
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* 3. Paste this script and run.
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* 4. Select output folder when prompted.
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*/
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var outFolder = Folder.selectDialog("Select output folder for Inner Shadow dataset");
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if (!outFolder) {
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alert("No output folder selected. Exiting.");
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throw new Error("No output folder");
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}
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var angles = [0, 90, 180, 270];
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var distances = [5, 15, 30];
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var sizes = [10, 30];
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var chokes = [0, 20];
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var fxOpacities = [75, 100];
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var fxBlendModes = [
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{ id: "normal", name: "normal" },
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{ id: "multiply", name: "multiply" }
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];
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function createDocument(name, width, height) {
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var doc = app.documents.add(width, height, 72, name, NewDocumentMode.RGB, DocumentFill.TRANSPARENT);
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try {
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var bg = doc.artLayers[doc.artLayers.length - 1];
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if (bg.isBackgroundLayer) {
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bg.visible = false;
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}
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} catch (e) {}
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return doc;
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}
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function addBlackRectangle(doc) {
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var w = doc.width;
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var h = doc.height;
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if (typeof w === "object" && typeof w.value === "function") { w = w.value; }
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if (typeof h === "object" && typeof h.value === "function") { h = h.value; }
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w = Number(w);
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h = Number(h);
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var margin = Math.round(Math.min(w, h) * 0.25);
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var layer = doc.artLayers.add();
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layer.name = "shape";
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var region = [
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[margin, margin],
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[w - margin, margin],
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[w - margin, h - margin],
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[margin, h - margin]
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];
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doc.selection.select(region);
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var black = new SolidColor();
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black.rgb.red = 0;
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black.rgb.green = 0;
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black.rgb.blue = 0;
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doc.selection.fill(black);
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doc.selection.deselect();
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return layer;
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}
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/**
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* Try applying Inner Shadow via ActionDescriptor with stringID keys.
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* Returns true on success, false on failure.
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*/
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function applyInnerShadow(params) {
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try {
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var desc = new ActionDescriptor();
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var ref = new ActionReference();
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ref.putProperty(stringIDToTypeID("property"), stringIDToTypeID("layerEffects"));
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ref.putEnumerated(stringIDToTypeID("layer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
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desc.putReference(stringIDToTypeID("null"), ref);
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var fxDesc = new ActionDescriptor();
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var isDesc = new ActionDescriptor();
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isDesc.putBoolean(stringIDToTypeID("enabled"), true);
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// Blend mode
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isDesc.putEnumerated(stringIDToTypeID("mode"), stringIDToTypeID("blendMode"), stringIDToTypeID(params.blendMode));
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// Color
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var colorDesc = new ActionDescriptor();
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colorDesc.putDouble(stringIDToTypeID("red"), 0);
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colorDesc.putDouble(stringIDToTypeID("grain"), 0);
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colorDesc.putDouble(stringIDToTypeID("blue"), 0);
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isDesc.putObject(stringIDToTypeID("color"), stringIDToTypeID("RGBColor"), colorDesc);
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// Opacity (0-100)
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isDesc.putInteger(stringIDToTypeID("opacity"), params.opacity);
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// Angle
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isDesc.putInteger(stringIDToTypeID("localLightingAngle"), params.angle);
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// Global light
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isDesc.putBoolean(stringIDToTypeID("useGlobalAngle"), false);
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// Distance
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isDesc.putInteger(stringIDToTypeID("distance"), params.distance);
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// Choke
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isDesc.putInteger(stringIDToTypeID("chokeMatte"), params.choke);
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// Blur (size)
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isDesc.putInteger(stringIDToTypeID("blur"), params.size);
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// Noise
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isDesc.putInteger(stringIDToTypeID("noise"), 0);
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// Anti-alias
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isDesc.putBoolean(stringIDToTypeID("antiAlias"), true);
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// Transfer function (contour)
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isDesc.putBoolean(stringIDToTypeID("transferSpecIsScaled"), false);
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fxDesc.putObject(stringIDToTypeID("innerShadow"), stringIDToTypeID("innerShadow"), isDesc);
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desc.putObject(stringIDToTypeID("to"), stringIDToTypeID("layerEffects"), fxDesc);
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executeAction(stringIDToTypeID("set"), desc, DialogModes.NO);
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return true;
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} catch (e) {
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$.writeln("stringID failed: " + e);
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return false;
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}
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}
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/**
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* Fallback: apply via charID-based descriptor.
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*/
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function applyInnerShadowCharID(params) {
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try {
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var desc = new ActionDescriptor();
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var ref = new ActionReference();
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ref.putProperty(charIDToTypeID("Prpr"), charIDToTypeID("Lefx"));
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ref.putEnumerated(charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt"));
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desc.putReference(charIDToTypeID("null"), ref);
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var fxDesc = new ActionDescriptor();
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var isDesc = new ActionDescriptor();
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isDesc.putBoolean(charIDToTypeID("enab"), true);
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isDesc.putBoolean(charIDToTypeID("present"), true);
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isDesc.putBoolean(charIDToTypeID("showInDialog"), true);
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// Blend mode
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isDesc.putEnumerated(charIDToTypeID("Blnd"), charIDToTypeID("BlnM"), charIDToTypeID(params.blendModeCharID));
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// Color
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var clr = new ActionDescriptor();
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clr.putDouble(charIDToTypeID("Rd "), 0);
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clr.putDouble(charIDToTypeID("Grn "), 0);
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clr.putDouble(charIDToTypeID("Bl "), 0);
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isDesc.putObject(charIDToTypeID("Clr "), charIDToTypeID("RGBC"), clr);
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// Opacity: 0-100 integer
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isDesc.putInteger(charIDToTypeID("Opct"), params.opacity);
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// Angle: use lagl (local angle) instead of Angl
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isDesc.putInteger(charIDToTypeID("lagl"), params.angle);
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isDesc.putBoolean(charIDToTypeID("uglg"), false);
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// Distance
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isDesc.putInteger(charIDToTypeID("Dstn"), params.distance);
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// Choke
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isDesc.putInteger(charIDToTypeID("Ckmt"), params.choke);
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// Blur
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isDesc.putInteger(charIDToTypeID("blur"), params.size);
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// Noise
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isDesc.putInteger(charIDToTypeID("Nose"), 0);
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fxDesc.putObject(charIDToTypeID("IrSh"), charIDToTypeID("IrSh"), isDesc);
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desc.putObject(charIDToTypeID("T "), charIDToTypeID("Lefx"), fxDesc);
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executeAction(charIDToTypeID("setd"), desc, DialogModes.NO);
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return true;
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} catch (e) {
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$.writeln("charID failed: " + e);
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return false;
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}
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}
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function saveTransparentPng(doc, file) {
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var pngOptions = new PNGSaveOptions();
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pngOptions.compression = 6;
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pngOptions.interlaced = false;
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doc.saveAs(file, pngOptions, true, Extension.LOWERCASE);
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}
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var count = 0;
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var errors = 0;
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var total = angles.length * distances.length * sizes.length * chokes.length * fxOpacities.length * fxBlendModes.length;
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var blendModeCharMap = {
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"normal": "Nrml",
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"multiply": "Mltp"
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};
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for (var a = 0; a < angles.length; a++) {
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for (var d = 0; d < distances.length; d++) {
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for (var s = 0; s < sizes.length; s++) {
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for (var c = 0; c < chokes.length; c++) {
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for (var o = 0; o < fxOpacities.length; o++) {
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for (var b = 0; b < fxBlendModes.length; b++) {
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var bmName = fxBlendModes[b].name;
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var bmID = fxBlendModes[b].id;
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var fileName = "is_" +
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"a" + angles[a] + "_" +
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"d" + distances[d] + "_" +
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"s" + sizes[s] + "_" +
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"c" + chokes[c] + "_" +
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"op" + fxOpacities[o] + "_" +
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"bm" + bmName +
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".png";
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var file = new File(outFolder + "/" + fileName);
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if (file.exists) {
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count++;
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continue;
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}
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var params = {
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angle: angles[a],
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distance: distances[d],
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size: sizes[s],
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choke: chokes[c],
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opacity: fxOpacities[o],
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blendMode: bmID,
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blendModeCharID: blendModeCharMap[bmID] || "Nrml"
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};
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var doc = createDocument("inner_shadow_test", 256, 256);
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var layer = addBlackRectangle(doc);
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var applied = applyInnerShadow(params);
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if (!applied) {
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applied = applyInnerShadowCharID(params);
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}
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if (applied) {
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try {
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saveTransparentPng(doc, file);
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} catch (e2) {
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$.writeln("Save error: " + fileName + " — " + e2);
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errors++;
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}
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} else {
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$.writeln("FAILED to apply effect: " + fileName);
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errors++;
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}
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doc.close(SaveOptions.DONOTSAVECHANGES);
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count++;
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if (count % 10 === 0) {
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$.writeln("Progress: " + count + " / " + total + " (errors: " + errors + ")");
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}
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}
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}
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}
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}
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}
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}
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alert("Done. Generated " + count + " images, " + errors + " errors.\n" + outFolder.fsName);
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