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Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 2:46 pm
by Yannis Drici
Hi !

So it's been a few days that I've been into Fusion / Resolve and there is a particule effect that i found in Fusion and that I would like to add to my Davinci project.

Unfortunately I didn't find a way to export it with transparency to Davinci, so when i export it on one hand the quality is weird (particules are sparkling while they were just moving around in Fusion) and there is a black background on it.

I checked on youtube and i found this about it
but in my Fusion there is no button "Attempt to save Alpha" such as the one at 0:57.

So after 3 hours of researches, I'm quite clueless...

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 3:09 pm
by Sander de Regt
The video you're watching was from a version where legacy QT codecs were still supported.
The 'attempt to save alpha' button only is available when you use a codec that supports embedded alpha.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 3:33 pm
by Yannis Drici
Ok thanks, then how can i use that kind of codec ?

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 3:37 pm
by Sander de Regt
I don't know anything about Resolve, so I don't know if it supports importing filesequences, but you could export a TGA-sequence with embedded alpha or use Prores with Alpha if that is supported.
Are you using Fusion Free or Studio?

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 3:59 pm
by Bryan Ray
For ProRes, only 4444 will have an alpha. But an image sequence is really the best choice for exporting from Fusion. Tiff, Tga, png, exr, and dpx all support alpha, although Resolve may not know how to handle a dpx with alpha—they're uncommon—and you might need to AlphaDivide right before the Saver if you use png—the specification is that all pngs are unpremultiplied.

"The quality is weird" might be a separate issue. Could you be more specific or post a demonstration?

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 5:46 pm
by Yannis Drici
To be honest I didn't understand most of what you both wrote. It's a matter of the format to which i render it from Fusion to Resolve right ?

I'm using the free version !

About the weird quality, I will check this once we solve the problem of transparency, because maybe that's just a matter of render settings.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 8:10 pm
by michael vorberg
not every file format for the output supports an alpha channel. it is more common to have image sequences with embeded alpha then a movie format.

for a movie format you can try to render to DNxHD/HR

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 8:15 pm
by Sander de Regt
Let's try to solve the quality and the transparency at the same time. What format are you saving to currently?

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 8:48 pm
by Yannis Drici
I tried QuickTime movies and now I'm gonna try DNxHD/HR.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 8:50 pm
by Yannis Drici
I can't find DNxHD/HR on the list of formats, check this :

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 8:55 pm
by Sander de Regt
That's becaus DNxHD/HR isn't a format. It's a codec that goes inside of a *.mov wrapper.
So select quicktime movies and then go to the 'format' tab and in the 'compression' dropdown you will find options for all kinds of codecs.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:10 pm
by Yannis Drici
Ok I did this, with DNxHD HQ 1080p 8bit and then rendered. It didn't go directly to Resolve so I took it from the place I chose to save it, drag and drop to Resolve and still black background.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:18 pm
by Sander de Regt
MetalGuy wrote:Ok I did this, with DNxHD HQ 1080p 8bit and then rendered. It didn't go directly to Resolve so I took it from the place I chose to save it, drag and drop to Resolve and still black background.

That's why Michael Vorberg said:

DNxHD/HR


As soon as you choose a codec that supports alpha, you will get the checkbox you were looking for in your first post.
Just select the top most codec and press the down arrow on your keyboard to cycle through your options and when you reach a codec that supports alpha, the checkbox will appear.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:22 pm
by Yannis Drici
There is no DNxHD/HR in the list, check this :

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:23 pm
by Sander de Regt
It says HR right where you highlight it.

Just select it and see if the checkbox appears.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:25 pm
by Yannis Drici
Yes I tried this one but now when i drag and drop it to Resolve it does this :

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:27 pm
by Sander de Regt
I am not a Resolve user, so I have no idea. Did you save it under a new name to be sure?
If you drag/drop it back in Fusion, does it show up?

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:28 pm
by Yannis Drici
Yes it shows up

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:29 pm
by Yannis Drici
And i saved it under a new name yes !

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:30 pm
by Sander de Regt
Then I guess you'll have to jump over to the Resolve section and ask them about this, because I have no idea why it would say media off-line if in fact it isn't.

Re: Export with transparency from Fusion to Resolve

PostPosted: Sun Mar 04, 2018 9:34 pm
by Yannis Drici
Ok I'll do this ! Thank you for helping anyway, now I'm confident about finding the solution hahah

Re: Export with transparency from Fusion to Resolve

PostPosted: Mon Mar 05, 2018 4:10 pm
by michael vorberg
Could you check if fusion loads the file with alpha? If not then there is something wrong with your fusion setup otherwise it's a resolve problem

Re: Export with transparency from Fusion to Resolve

PostPosted: Mon Mar 05, 2018 9:12 pm
by Marcus Goller
I hope I am not adding any additional confusion here, but did you look into using Fusion Connect?

Here is a useful example:


This should take care of sending the footage to Fusion and back again. Also it would get around this particular transparency issue, as the final composite is rendered in Fusion and imported into Resolve.

Re: Export with transparency from Fusion to Resolve

PostPosted: Tue Mar 06, 2018 10:21 am
by Yannis Drici
Ok i tried something new :

I tried to directly import my connected clip from Resolve with connected clip and then put the particle effect on it, but the node doesn't want to create itself. I mean whenever i try to link the particles effet node to my clip, the arrow just doesn't do it.

Then I tried another thing : I made my particle effect and saved it as quicktime video, codec DNxHR HQ 8 bit. Then I imported it to my fusion project and created a merge node to link it with the video. But here is a new problem : even if I clic on foreground inside of the merge node when I select the particle effect, and background for my video, the particles stay in the foreground (i can see the particles on the sizes of the screen).

I used this video as a reference (everything works fine for me until 8:54)


Re: Export with transparency from Fusion to Resolve

PostPosted: Tue Mar 06, 2018 11:48 am
by Yannis Drici
Just found the solution !! :)

Re: Export with transparency from Fusion to Resolve

PostPosted: Tue Mar 06, 2018 11:52 am
by Sander de Regt
Good for you!

Can you let us know how you fixed it? This way other people can learn from your experiences.

Re: Export with transparency from Fusion to Resolve

PostPosted: Wed Mar 07, 2018 11:55 am
by Yannis Drici
Yes !

First i made my particle effect in Fusion, that i saved as quicktime video, codec DNxHR HQ 8 bit.
Then i imported my sequence from Resolve, placed a merge node where i linked my effect in foreground and sequence in background.

The thing is that it didn't want to display it both at the same time, so i tried to link a saver to my merge node and it worked. Then i exported it in Resolve again.

Re: Export with transparency from Fusion to Resolve

PostPosted: Wed Mar 07, 2018 3:22 pm
by Sam Steti
Hi there,
Just a word to say I've read the whole thread (back from holidays right now) and I don't understand the issue, at least the second one.
1/ about the alpha channel, it indeed is quite simple : each time you need alpha channel, just think ProRes 4444, that's all. Don't even need to tick any alpha option, it's "included by default" ;) ;
2/ for this kind of roundtrip, to ease the workflow, start in Resolve > Fusion Connect > do the trick > save. Boom, refreshed in Resolve.
Now, if you prefer to make it apart, do the trick in Fusion > export in PR 4444 > import in an upper track in Resolve. If there's any trouble with alpha in Resolve : Media pool > right-click the clip > clip attributes > "premultiplied alpha"

Re: Export with transparency from Fusion to Resolve

PostPosted: Wed Mar 07, 2018 3:31 pm
by michael vorberg
If you not on OSX then only the studio version can export to prores. As the topic starter said he has only the free version

Also prores don't work with render nodes