MBLV

I appreciate your effort. I really do. But it doesn't solve the issue, and it goes back to looking even worse when I turn back on my Curves for color correction. There shouldn't be any hoops to jump through or a bunch of tricks to apply for this. It works cleanly in PShop, Nuke, and DaVinci by just putting the image over a background layer. Anyone else have any idea or have had this happen?

The point here of using the curves is as part of the color correction, so i need it on the master channel. And (in this case anyway) i need the curve upward. I suppose i could add a second curves set to alpha and pull it down, but that starts to cut into the edges, or the white edging comes back

I isolated the tree and made a simple comp. The problem gets much worse and more noticeable when color adjustments are added to the layer, in this example i added some curves. also included on a separate layer is the alpha pass saved separately from Max. Thanks for taking a look. treeTest.afphoto

Here's the set up: I'm rendering images in 3ds Max. When I go to change the background in Affinity Photo there is a white matte that I cannot get rid of. It seems like the alpha channel is not being correctly read as premultiplied. I have tried using Filters->Colors->Multipy by Alpha and Remove White Matte, and they seem to soften the effect, but it's still there. I've tried the image saved out of 3ds Max as a PNG, EXR, and TIFF, all with the same results. Attached is an example image with a solid color fill on the layer below. Is this a bug? is there some setting or filter I'm missing? Thanks!