How To Make Your Weapons GLOW! – OSL Effect Tutorial

Green OSL airbrush tutorial

Checkout this super sweet way to make your Necrons pop with some of ‘dat green glow!  It’s time, to get your Object Source Lighting (OSL) on.


Fact: Metal is Metal, it’s tough to make it pop!

This green glow helps make your model pop from about 4 feet away! Oh, and you can use this for things like Nurgle, and maybe Salamanders.

Today’s show is brought to you by P3, no not really, but we’re using P3 Iosan Green and P3 Necronite Green with Citadels Flash Gitz Yellow which is a super bright yellow and totally worth using to get that top level glow effect.

Step 1: Iosan Green. We’re just getting the green down at this level, no need to be careful because a bit of over-spray is what gives us that glowing effect. Note that doesn’t mean you can just let the paint spray everywhere, you want a little natural over-spray to make this technique work.


Step 2: Necrotite Green, now we’re taking it a step up in color but the key here is aiming just for the very middle of these areas. We’re going to be very precise with it.


Pro-tip: You’ll notice I’m doing a bit of over-spray again in some areas. It makes it look like a natural glow effect.


Step 3: Flash Gitz Yellow; this is such an amazing color, we’re going to mix it thin. We’re doing very light controlled bursts with this yellow. I’m aiming right at the middle and my air brush is super far away. You don’t want to be too obnoxious with it. We’re aiming for the very top.


Step 4: Highlight Flash Gitz. Here’s the trick, we’re going in with the brush. We’re going to line up the edges with our Flash Gitz Yellow. We want to let everything dry to make sure it’s ready. The first line is the toughest because you want a good angle of attack.


Note: I really watered it down in case I mess up, that way  I can just pull it off with my finger. Your window of opportunity is short, however, so you need to focus.  If you miss, quickly pull it off.

I’m just dragging the brush right over the edge. It’s almost cheating because it’s easy; it’s just a matter of getting in there and doing the work.

Pro-Tip: Pull the brush towards you for more control. For even more control move the model not the brush.

This step is super important and in the video I put the entire bit of my highlights, it takes time. For this particular model it took me about 6 minutes a model of getting in here with a brush. You’ll also see in the video that I’m not using the tip, I’m using the side of the brush to make it easier.

I also show you how to properly load up your brush, so if you’re looking for another hobby tool to add to your arsenal check the video out!

Step 5. Glaze it up. We’re using Secret Weapon Mini’s Fallout Wash, which is great for glazing. We’re using Army Painter wedge brushes. You’re going over all the green and even a bit of the metal parts that didn’t get any green on it. This works because it’s so thin it gives it a false shade that tapers off the end of the air brush.

HT_Glow Effect

Pro-Tip: Get rid of the bubbles and clean up the excess.

Let it dry and that’s a wrap. It’s an amazing effect and takes about 20 minutes a model, which, in my opinion isn’t that bad. HT Glow Effect

To see this done first hand check out the video!

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About Rob Baer

Virginia Restless, Miniature Painter & Single Father to 3 Cats. I blame LEGOS. There was something about those little colored blocks that started it all.. Twitter @catdaddymbg

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