Scrape the export formats labels + internal urls from the Substance Painter Export dialog

substance_painter_export_dialog_scrape_formats.py

import json
from PySide2 import QtCore, QtWidgets
import substance_painter.js


def scrape_export_presets():
    app = QtWidgets.QApplication.instance()
    
    # Allow app to catch up
    app.processEvents()

    dialog = app.activeWindow()
    assert dialog, "A window must be active now"
    assert dialog.windowTitle() == "Export textures", "Export Textures dialog must be visible"

    app.processEvents()
    
    presets = {}

    for box in dialog.findChildren(QtWidgets.QComboBox):
        # Let's assume the box we want has both 'Sketchfab' and '2D View'
        if box.findText("Sketchfab") == -1:
            continue
        
        if box.findText("2D View") == -1:
            continue

        model = box.model()
        for y in range(model.rowCount()):
            item = model.item(y)
            label = item.text()
            print(label)
            
            try:
                url = item.data(QtCore.Qt.UserRole + 1)  # url role?
                presets[url.toDisplayString()] = label
            except (RuntimeError, AttributeError):
                print('NO URL')
                
    dialog.close()
    data = json.dumps(presets, indent=4)
    print(data)

QtCore.QTimer.singleShot(0, scrape_export_presets)
substance_painter.js.evaluate("alg.mapexport.showExportDialog()")

Example output from Substance Painter 8.2.0:

[Python] 2D View
[Python] Document channels + Normal + AO (No Alpha)
[Python] Document channels + Normal + AO (With Alpha)
[Python] Sketchfab
[Python] Substance 3D Stager
[Python] USD PBR Metal Roughness
[Python] glTF PBR Metal Roughness
[Python] glTF PBR Metal Roughness + Displacement texture (experimental)
[Python] NO URL
[Python] Amazon Lumberyard
[Python] NO URL
[Python] Arnold (AiStandard)
[Python] NO URL
[Python] Arnold UDIM Legacy (AiStandard)
[Python] NO URL
[Python] Blender (Principled BSDF)
[Python] NO URL
[Python] Corona
[Python] NO URL
[Python] CryEngine
[Python] NO URL
[Python] Dota 2
[Python] NO URL
[Python] KeyShot
[Python] NO URL
[Python] KeyShot 9+
[Python] NO URL
[Python] Lens Studio
[Python] NO URL
[Python] Maxwell (Metallic Roughness)
[Python] NO URL
[Python] Maxwell (Specular Glossiness)
[Python] NO URL
[Python] Mesh Maps
[Python] NO URL
[Python] Non-PBR Specular Glossiness
[Python] NO URL
[Python] PBR Metallic Roughness
[Python] NO URL
[Python] PBR Metallic Roughness (folders or PSD groups)
[Python] NO URL
[Python] PBR Specular Glossiness
[Python] NO URL
[Python] PBR Specular Glossiness (converted from Metallic Roughness)
[Python] NO URL
[Python] Redshift (rsMaterial)
[Python] NO URL
[Python] Renderman (pxrDisney)
[Python] NO URL
[Python] Renderman (pxrSurface)
[Python] NO URL
[Python] Roblox (MaterialVariant)
[Python] NO URL
[Python] Roblox (SurfaceAppearance)
[Python] NO URL
[Python] Shade 3D
[Python] NO URL
[Python] Spark AR Studio
[Python] NO URL
[Python] Unity HD Render Pipeline (Metallic Standard)
[Python] NO URL
[Python] Unity HD Render Pipeline (Specular)
[Python] NO URL
[Python] Unity Universal Render Pipeline (Metallic Standard)
[Python] NO URL
[Python] Unity Universal Render Pipeline (Specular)
[Python] NO URL
[Python] Unreal Engine 4 (Packed)
[Python] NO URL
[Python] Unreal Engine 4 SSS (Packed)
[Python] NO URL
[Python] Vray Next (Metallic Roughness)
[Python] NO URL
[Python] Vray Next (Specular Glossiness)
[Python] NO URL
[Python] Vray Next UDIM Legacy (Metallic Roughness)
[Python] NO URL

Substance Painter export-preset-generator entries

And that makes the export preset generator entries like this from URL to label.

{
    "export-preset-generator://viewport2d": "2D View",
    "export-preset-generator://doc-channel-normal-no-alpha": "Document channels + Normal + AO (No Alpha)",
    "export-preset-generator://doc-channel-normal-with-alpha": "Document channels + Normal + AO (With Alpha)",
    "export-preset-generator://sketchfab": "Sketchfab",
    "export-preset-generator://adobe-standard-material": "Substance 3D Stager",
    "export-preset-generator://usd": "USD PBR Metal Roughness",
    "export-preset-generator://gltf": "glTF PBR Metal Roughness",
    "export-preset-generator://gltf-displacement": "glTF PBR Metal Roughness + Displacement texture (experimental)"
}