For example, on my Elemental King I painted his collar and metal plates a cool blue-grey NMM steel but then used iron RMM to create layers and sheets of rust. On my Harlequin Wraithlord, I used a little bit of NMM to highlight some of the TMM gold in order to force a visible highlight not dependent on the strength or angle of actual light reflecting off the paint.
I'll show you some examples and offer some tips on ways you could use this.
Recently, on the mounted leader from Age of Sigmar, I used metallics to create a shiny undertone that blended into natural set highlights. This was actually done in only 4 steps - Metallic gold primer, a thick brown wash, then an off-white highlight followed by quick white highlight of tips and corners.
Once again, I'll use the rotating axe as an example of the difference between metallic methods:
- Red True-Metallic Metal base
- The base of the red section demonstrates how as a metallic surface moves, light looks very different - from bright red to dark red.
- White Non-Metallic Metal
- The white parts of the axe shows the difference between NMM and TMM. Notice how as the red TMM darkens as it falls from direct light, the painted NMM remains fairly bright.
- Red Mixed-Metallic Metal
- The red metallic area as a whole demonstrates how you can mix the two styles together in order to create a metallic effect that shines in the light but still has some static highlights no matter which angle you look at it from.
Elemental King's Collar
Real-Metallic Metal, I touched a little on how I used a NMM base. As the collar progresses, these blue/grey areas show through all the rust.
This is an effect that the iron paint wouldn't create on its own - The iron is just a flat grey that over time would fully rust. The NMM captures the appearance of rust at the same moment in time as the rest of the miniature.
TMM with NMM Highlighting
This is probably the more common case, where you have a True-Metallic Metal base that shines nicely, but maybe you want to make the highlights stand out more without using another TMM paint.
The important thing in this situation is you have to be aware of light sources while creating your metallic effect, since you're forcing a fixed perspective.
Like the example with the axe, I've rotated the mini a little to show you how even in the dark, these NMM highlights still show through.
NMM with TMM accents
Similarly, you can mix metal effects to add a shimmer to normally dull NMM paint jobs. In the case of this lizardman, I created a subtle scale effect by painting a lot of regular paints over a shimmering metallic undercoat.
This left some of the shadows and misc highlights reflective to pick up the light as the model is shifted around.
Combining MMM Paints
On the Harlequin Wraithlord I entered in Golden Demon, I also mixed bleached bone (a light beige) in with gold to create limb highlights. By doing this in a few layers up to the lightest areas, it creates a transition from shiny gold to brighter static highlight.
What I mean by layers, is painting the leg gold first, then highlighting with a mix of mostly gold and a little beige, next highlighting with a mix of gold and beige, then a mix of mostly beige and a little gold and finally a little highlighting of just beige.
Moving the camera from one of the leg, around, up and over, you can see how light plays across the length. It's strong and bright when direct, but when the light isn't there, the highlights from the beige mix still give the metallic surface texture and light / shadow.