A 2D Bevel Technique

How do you generate a 2D bevel out of a shape ? Maybe start by computing a heightfield, then light it just like Photoshop does … but then, how do you try that out ? Go push individual pixels in C ? Bwwwwarg.

Luckily after browsing the Core Image Reference, we can see that everything we need to do a bevel is there : CIHeightFieldFromMask and CIShadedMaterial.

Image:A 2D Bevel Technique.png

Once there, varying the radius on CIHeightFieldFromMask will vary the bevel depth.

Image:Varying Gaussian Blur Radius.png

Sample QTZ

Bevel 4.qtz

Patrick Geiller
2008 05 29

Browsing the logs I've seen someone from netblock-68-/-/-/ trying to leave a comment here. I was doing some work on the admin side and your comment didn't make it through. Sorry ! Please repost if you come back.

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