[cairo] MeshGradient question

[Andrea Canciani]

On Sat, Apr 21, 2012 at 9:44 AM, Travis Griggs <travisgriggs at gmail.com>wrote:

> I'm playing with the mesh gradient stuff in 1.12.0. I'm drawing something
> like a spider plot, using mesh triangles between each arm. It's pretty cool
> that I can do this. One thing that puzzles me, is that the edges of the
> patches don't appear to be anti-aliased. Is that to be expected? I'm
> drawing to an ImageSurface, and then drawing to the screen. A screen shot
> of what one looks like is attached. If one zooms in on it, one can see the
> hard jagged lines at the transitions to black. Is this to be expected?
>


Yes, that is expected.
Gradients (linear, radial, mesh) are not supersampled or antialiased in any
way, hence they can show jagged transitions in high-contrast areas.
You might want to render at a higher resolution and/or downscale the image
to hide this issue.

Andrea



>
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> Travis Griggs
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