Hi,

I’m trying to figure out the proper or best way to detect if and EXR image was 
rendered using multi-part. I went through the OIIO documentation and couldn’t 
find any info regarding this.
I also cannot find any metadata that seem to indicate if the EXR was rendered 
using multi-part or not.

Right now I am using the following code to identity mutli-part EXRs but this 
doesn’t seem like the way to go. Thanks.


print(srcImg.seek_subimage(1, 0))

>> True # if EXR was rendered using multi-part
or
>> False # if EXR was NOT rendered using multi-part
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