Why is this anti-aliasing artefact happening?

Question

Shown below is a render of a model of mine.

enter picture description here

^{Larger version here}

As you can see in the circled portions, the anti-aliasing is pretty bad. How do I improve it?

I've tried increasing the samples per pixel and the sample width, but neither seem to help it. Is there any other way to correct it?

Here's a screenshot of the render panel: http://i.stack.imgur.com/SHZqf.png . File is here — Luke_0, Jun 12 '13 at 22:47
Changing the quality lower makes it slightly better, but it is still noticeable and the rest of the image's quality goes down. — Luke_0, Jun 12 '13 at 22:54
just saw the link, remember you can shift+b to render only a small portion ..for debugging. am checking now — zeffii, Jun 12 '13 at 23:07

zeffii · Accepted Answer · 2013-06-12T23:24:53.937

5

Looks like you have transparency on the Island material, switching it off seems to do the trick,

enter image description here

edited Jun 12 '13 at 23:24

answered Jun 12 '13 at 23:14

zeffii

1

This works. I'm not sure how the transparency got turned on. – Luke_0 Jun 12 '13 at 23:21
1

cool! sometimes accidental keystrokes.. who knows. – zeffii Jun 12 '13 at 23:26

1 Answers1