Author Archives: jaspervdg

Smooth transitions in mesh gradients

Posted on 2014-05-05 by jaspervdg

Mesh gradients are supposed to allow for smooth shading/colouring of vector graphics. The usual Coons (and tensor) patches are smooth on their interior, but across boundaries we may still have sudden changes (in derivative), leading to visual artefacts. Here I … Continue reading →

Posted in Vector graphics | 2 Comments

Adding up to 100

Posted on 2013-01-03 by jaspervdg

What could be easier? Still, percentages in polls often add up to all sorts of numbers other than 100. For example, suppose exactly one third of the participants votes for option A, another third for option B, and another third … Continue reading →

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Specifying radial gradients

Posted on 2012-09-03 by jaspervdg

Radial gradients have long been a staple of vector graphics. They allow for all sorts of interesting effects, like highlights. However, there are some subtleties to them. This has led to differences between SVG, Canvas, CSS and PDF. And recently … Continue reading →

Posted in Vector graphics | Tagged | 1 Comment