I have been trying to discover how to get RawTherapee to show be a preview of what my raw file would look like if the data is not gamma encoded, i.e. I would like to see a linear preview. I am trying to evaluate the true vignetting performance of my lenses.
I understand I can output a TIFF with linear gamma, or there is also the “save reference image” will gives a linear TIFF file. Both methods give me what I want, but then I need the additional steps to save the file and use another image viewer to look at it. I would like to be able to just look at the raw file itself inside RawTherapee. But I can’t find the function to cause the preview image to display as linear. I’ve tried unchecking the tone curve checkbox for the camera profile, changing the output gamma setting to “linear_g1.0”. Nothing I change in the output profile settings changes the preview (understandably). The preview still is not linear.
Hope someone can help! Thank you!