OSL stands for object source lighting. Basically that means that a light source is reflecting onto the surfaces around it. I have been wanting to try this technique for some time and finally gave it a go. I figured an Ork Trukk was a good candidate for this as it is kind of hard to mess up something Orkish. The picture is kind of blurry (the iPod was struggling to get into focus), but you can see the overall effect. I went wit the less is more approach, not wanting to get too crazy out of the gate.
The technique is pretty basic.
I painted the gauge blue, using the blues used to paint Ultramarines. and did the highlights on the black areas. Then, I mixed the main blue (the new Ultramarines Blue) and some Black about 25% to 75%, yielding a very dark blue. Thinning the paint a bit with Lahmian Medium, I then blended the dark blue onto where the reflected light would reach the farthest.Adding more and more blue to that, I moved back towards the source (the gauge), finishing with a final edge highlight closest to the source. The very top highlight had a bit of white added to the blue. This was painted on the sharpest edges, closest to the gauge.
Hey
I think you blog is really great and you have strick and straight to the point stuff one can read for help and inspiration.
I dont know if you have noticed though but some of your pictures have focus on the wrong object in the image.
I tried to read the OSL article acnd couldnt figure out where the effect was applied as the focus is on the paint covered hobby mat in the background.
Other than that keep up the good work and pay me a visit on http://acrylicaddict.blogspot.se/ if you find the time!
Regards