Parmanoir

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.

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

Sample QTZ

Bevel 4.qtz