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I was hoping the render window would have Render: Samples information as well as other render settings I used so I can keep have it for future reference, but I can't seem to locate it.

In the render window I can see it has some information like image size and color space information that was defined for rendering, but nothing more.

Anyone have any tips/leads on this?

Blender Render Window: does it have more information like samples count?

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  • $\begingroup$ If you save the renders as image to disk, Blender saves some configurable subset of that info as metadata. You might recover some of it that way, though I haven't tested for after the fact saving. $\endgroup$ Commented Aug 18 at 19:47
  • $\begingroup$ Generally you can select predefined metadata in the Output Properties. How to retrieve this data at least from a png via script is answered here: Read image metadata from Python. But you can also simply open a png file in a text editor and find the data in the header although it looks a bit like a mess ;) $\endgroup$ Commented Aug 19 at 6:34

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Apart from the link to the script I gave in the comments, it depends on where you need the data. If you want to view it directly in Blender to adjust settings according to the metadata of a different, it is probably easiest to just open the image in Blender.

First of all, here under Output Properties > Metadata is where you can find some predefined data which can be stored in the image by checking it (and in your previously saved images the data which is checked by default should already be stored), if the existing things are not enough you can also check Note to enter a custom text you want to save as well. By the way, although you cannot check them in the Metadata section, the number of samples for Cycles renders is automatically stored as well, also the render times per view layer if you render more than one (even if they do not wind up in the final composite).

output properties

If you open the file in a text editor, in case of a PNG file the metadata all have a "tEXt" in front of them, here a cropped view of a header:

png header

But of course this is very messy and not so easy to read. But as I said, if you need it mostly in Blender, there you can easily retrieve data by just opening an image in the Image Editor for example, there you can find them in the Image tab of the sidepanel:

image editor

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