Currently browsing category

Graphics

Getting to grips with QML

In case you haven’t noticed QML is the big thing to come from Qt and it is being integrated into KDE plasma, BlackBerry, new Ubuntu mobile OS, etc. So, I figured I would give building some UI a go with it. Given how much I suck at UI design I …

Headless X on Kubuntu 12.10

I have a new machine that I’m setting up to a be a renderer. This machine will sit happily in the corner without monitor / keyboard / mouse and render video clips. The problem is: how on earth do you setup Ubuntu to boot without a monitor. Step 1: BIOS …

Planetary rendering

Planetary scale rendering is a fairly popular topic and and to do it right requires paying attention to such things as: Floating point precision. Difficulties of rendering spherically. Data paging the enormous amount of data required to cover the global surface area. There are plenty of examples of some pretty …

Infinite triangular pyramid

Playing around with triangulating using the ear clipping technique and had the issue of trying to determine if a point in 3D space overlapped a triangular area. In brief the ear clipping technique consists of Find a set of 3 points p0, p1, p2 where the tip p1 is convex i.e. the …