# Action: Soft matte into action gives a sharp edge result

**URL:** <https://forum.logik.tv/t/action-soft-matte-into-action-gives-a-sharp-edge-result/14135>\
**Category:** Flame Questions\
**Tags:** action, gmask-tracer\
**Created:** [February 18, 2026, 9:39am UTC](https://forum.logik.tv/t/action-soft-matte-into-action-gives-a-sharp-edge-result/14135 "2026-02-18T09:39:39Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Rajdarn](https://avatars.discourse-cdn.com/v4/letter/r/ecccb3/32.png) [@Rajdarn](https://forum.logik.tv/u/Rajdarn)\
**Post date:** [February 18, 2026, 9:39am UTC](https://forum.logik.tv/t/action-soft-matte-into-action-gives-a-sharp-edge-result/14135/1 "2026-02-18T09:39:39Z")

</div>

Hey all!

I have a strange problem I can’t seem to fix.

I’m using action to comp a few plates together and I have a gmask tracer outside of action where the masks are feathered. When I look at the result from action all masks are sharp.

It was working fine until I separated the layers in z in the axis nodes, I think this is when the sharp edges appeared. I’m not super well versed in action so I don’t know why this is or how I can fix it. I know there’s a similar problem when using 3d shapes as masks and you have to click a button so the shape knows it’s supposed to be feathered, but I can’t find such a button for regular surfaces.

It does not seem to be a premult problem, when I change the premult setting I get super bright edges, but they’re still sharp.

Any ideas on how to fix this? I’m starting to go a bit crazy haha.

Cheers!

---

<div class="post-metadata">

**Author:** ![AndyBrown](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/andybrown/32/708_2.png) [@AndyBrown](https://forum.logik.tv/u/AndyBrown)\
**Post date:** [February 18, 2026, 10:08am UTC](https://forum.logik.tv/t/action-soft-matte-into-action-gives-a-sharp-edge-result/14135/2 "2026-02-18T10:08:27Z")

</div>

Check that Z buffer is off in action (or that your layers are correctly sorted in z-space). If you ever get weirdness in action, it’s usually either this or the z depth on the camera.

---

<div class="post-metadata">

**Author:** ![Rajdarn](https://avatars.discourse-cdn.com/v4/letter/r/ecccb3/32.png) [@Rajdarn](https://forum.logik.tv/u/Rajdarn)\
**Post date:** [February 18, 2026, 10:21am UTC](https://forum.logik.tv/t/action-soft-matte-into-action-gives-a-sharp-edge-result/14135/3 "2026-02-18T10:21:14Z")

</div>

OMG, it was the sorting!

I had recently added a new background plate and it was at the top of the “layer stack”. Moved it to the bottom and it looks correct now. I can’t believe I didn’t check that… Thanks for the help!