captureView() return empty Image

[linshuh]

Hi all,
I wonder why "captureView() return empty Image" happen? If captureView() does not work, what's the other solution I can use, to take screenshot of model in ModelViewSolid mode?
Running "screenshot_meta.py" get error

image.save('cameratest.png')
RuntimeError: Can't save image: cameratest.png

When I try to open this png image by MacOS Finder, it tells me the file is empty.
The reason why I use captureView() rather than renderImage/reanderPreview() is because I want to render model in "ModelViewSolid" (non-texture) mode.

• How I run script:

Code: [Select]

$ /Applications/MetashapePro.app/Contents/MacOS/MetashapePro -r screenshot_meta.py

• screenshot_meta.py

Code: [Select]

def main():
    app = Metashape.app
    app.model_view.model_view_mode = Metashape.Application.ModelView.ModelViewSolid  #<--- change view mode. Don't want default colored model
    doc = app.document
    doc.open('test_screenshot_solid.psz')
    image = Metashape.app.model_view.captureView(width = 300, height = 150, transparent = False, hide_items = True)
    image.save('cameratest.png')


Thanks advance

[Seboon]

Hello linshuh,

Try this:

Code: [Select]

def main():
    app = Metashape.app
    app.model_view.model_view_mode = Metashape.Application.ModelView.ModelViewSolid  #<--- change view mode. Don't want default colored model
    doc = app.document
    doc.open('test_screenshot_solid.psz')
    image = Metashape.app.model_view.captureView(width = 300, height = 150, transparent = False, hide_items = True)
    cap =  Metashape.Image(image.width, image.height, "RGBA", "U8")
    image.save('cameratest.png')
See  section "Metashape.Image" in Metashape Python API for more information on the arguments.

Best regards,
Sébastien

[linshuh]

Hi Seboon,
Thank you so much for the reply, but I still get the same issue, i.e. Image(cap) is empty.
My MetashapePro version is 1.6.4
And when I run this script, I didn't open the Metashape GUI.

Do you know why that happen?

Thanks Advance

[Alexey Pasumansky]

Hello linshuh,

When you do not use application GUI the Model View is not created. Also Metashape.app.document will return None, as it is related to the currently opened project in GUI mode.