export to multilayer exr

i imported a multilayered exr made some edits and i want to export it again with all the render elements to multilayered exr

i tried to render to exr in the delivery tab but it only exported the RGBA channel and i lost all render elements

This is not possible in Resolve's Deliver page.

But in the Fusion page you can use a Saver node to write an EXR which contains multiple layers, using the following built-in image channels:


Fusion can't save arbitrary channels, only the ones listed. Though you can use the ChannelBoolean node to copy any content you like to those listed channels, and then give them whatever names you like in the resulting EXR.

There's also a free community tool, available in the Reactor plugin manager, called LifeSaver, which enables multi-part EXRs, and other options. For more details see this post on the We Suck Less forum.

the saver node only saves rgb and alpha
i lost all other channels like lighting ,global illumination ,etc

the saver node only saves rgb and alpha
i lost all other channels like lighting ,global illumination ,etc

The saver node saves all the channels shown in the first screenshot I posted. Make sure your other channels are correctly loaded into Fusion in the first place. In the Loader node, you can expand the Channels tab to see what EXR channels are mapped to what Fusion channels:



^^ That's an EXR I just wrote out of Fusion with a Saver node, then loaded back in with a Loader. You can see that more channels than just RGBA were saved and then loaded.

To check the channels you have active in your comp, you can also put a node into a Viewer, then click the dropdown shown here, which lists all the available channels from that node:

ok i think am getting there
i selected the media in node opened the channel tab and started loading the different elements

the problem now that i get for every render element 3 different rgb channels for example
global illumination.r
global illumination.g
global illumination.b

and tested and they get exported that way which is useless

any workaround ?

I'm not exactly sure what you're seeing. But have you tried loading the EXR with a Loader node instead of a MediaIn? Unless you need to arrange your EXRs on a timeline, I'd just use Loader nodes and forget about MediaIn.

If you're a Resolve Studio user, you could also move to Fusion Studio instead of Resolve Studio, which might simplify things for you.

thats what i see
every render element splitted into rgb channels separately


i only see them correctly in the mediain layers

any help