<p>Have a look at how AE is interpreting the footage (right-click it in the project and look for <strong>Interpret Footage>Main</strong>). Specifically look at how it is interpreting the alpha channel, it could be interpreting a straight alpha channel as pre-multiplied or the alpha channel might be pre-multiplied with another colour instead of black). Have a go at switching between alpha modes, or try setting the pre-multiplied colour to white instead of black.</p>

<p>If that fails you'll need to de-fringe the layer in your comp. A simple choker effect would do the trick.</p>

CC BY-SA 3.0
2017-02-28T01:00:22.530Z
2017-02-28T01:00:22.530Z
stib
<p>I have a composition of a video and a 3d object on it, coming from CINEMA 4D. There is a ~1 pixel wide glowing artefact around the edge of the imported 3d object. What can be the reason and how can I fix it?</p>

<p><a href="https://i.sstatic.net/vpO09.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/vpO09.jpg" alt="the mattress is the 3D object, the light edge is clearly visible, especially on the lower right edge"></a></p>

CC BY-SA 3.0
2017-02-27T18:42:44.383Z
On the screenshot, the preview quality is set to draft, but the final quality has the same issue.
Mkoch
<after-effects><3d><cinema4d>
3D object from CINEMA4D has glowing edge in After Effect
Mkoch
# 3D object from CINEMA4D has glowing edge in After Effect

(Asked by: username_0 on 2017-02-27)

I have a composition of a video and a 3d object on it, coming from CINEMA 4D. There is a ~1 pixel wide glowing artefact around the edge of the imported 3d object. What can be the reason and how can I fix it?

[![the mattress is the 3D object, the light edge is clearly visible, especially on the lower right edge](https://i.sstatic.net/vpO09.jpg)](https://i.sstatic.net/vpO09.jpg)

**Tags:** after-effects, 3d, cinema4d

> **Comments:**
> **username_0**: On the screenshot, the preview quality is set to draft, but the final quality has the same issue.  

---

## 1 answers

### Answer by username_1 on 2017-02-28. Score: 2 | Accepted answer

Have a look at how AE is interpreting the footage (right-click it in the project and look for **Interpret Footage>Main**). Specifically look at how it is interpreting the alpha channel, it could be interpreting a straight alpha channel as pre-multiplied or the alpha channel might be pre-multiplied with another colour instead of black). Have a go at switching between alpha modes, or try setting the pre-multiplied colour to white instead of black.

If that fails you'll need to de-fringe the layer in your comp. A simple choker effect would do the trick.


---

