With three trips remaining on this project, I’m anxious to hit the road. The weather, however, is playing up – one minute the sun’s out, the next the clouds conspire to steal the light. My destination today – Tinto Hill – involves a day trip, but one I’m almost tempted to invent rather than venture 50 miles south east of the city. Does my physical presence matter, I ask myself, or could I simply make a virtual journey, pieced...

On the day the Glasgow Film Festival announces a screening of my movie – Sat 23 Feb at GFT2 – I travel to Tinto Hill to reshoot a sequence, not content with the original shot during the summer of 2009 because of poor light and low contrast. If there’s one thing you can’t buy it's the weather, especially during a Scottish summer.

In 2007, the year I began shooting The Devil’s Plantation, I became obsessed with weather...