Point Cloud Renderer / Screen Capture

Hello people,
I'm looking for a way to screen capture point clouds from an old unity project..
I lost the project files and only have the .exe which makes things a little complicated.
I've already tried several screen capturing tools but always end up with really unsatisfying results regarding the image quality. The footage displaying the point clouds turns out super blurry and low res.
Does anyone have experience on this topic and can point me in the right direction?

Thanks in advance!

 

try to record with OBS as raw or super high quality, or some screen recorder that captures png screenshots.

if its your own exe, can decompile it with external tools.