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- Joined: Sat Aug 24, 2019 8:31 am
- Real Name: Daz Harris
An EXR will be rendered without the transfer curve that makes an image appear normal on the screen. Blender's render buffer has a LUT that converts from lin to sRGB to match your monitor. Likewise, a jpeg or other image is assumed to be intended for final viewing, not compositing, so it gets the sRGB color space conversion baked in.
In Fusion, if you turn on the viewport LUT and set it to convert from "No Change" to "sRGB," the EXR should look just like the rendered jpeg (with the LUT turned off).
In this image, I've circled the LUT you need to turn on, the Edit button that lets you modify it, and the sRGB setting you need to get the correct output.
edit: Oh, and that grid icon above the pop-down menu is the one that activates the LUT. If you're using Fusion 9 it's a little clearer since the button just says LUT, but it's at the bottom of the window instead of the top.
edit2: Once you're done with your compositing, you'll probably want to convert your output to sRGB or Rec.709. You can do so with a Gamut node, which works just like the GamutViewLUT above. Put it right before your Saver or MediaOut to convert the linear composite to apply a transfer curve that will make the image viewable in other software. Unlike Blender, Fusion won't automatically assume anything about color space when you choose the output file type—it trusts the artist to know what they're doing.