How to paint an epic planetary smash-up

space mashup final

Any space scene is a daunting subject, but a celestial collision even more so. The trick is to keep things simple. Paint your space backdrop and the planets on their own, then add the collision afterwards.

Both space and planets are surprisingly easy to create, once you break them down into their basic components. Space is a big night sky. Nebulas are brightly coloured clouds. Finally, planets are big old spheres that need to be shaded accordingly – just add textures and a soft outer glow if there's an atmosphere.

Colliding planets don't differ much from these basic elements. Keeping everything on its own layer makes it easier to position the planets and paint the collision.

Now, the collision itself – I'm not sure if there would be an actual explosion of fire, even if both planets had atmospheres. But hey, this is fantasy and it looks pretty darn cool, so I'm going with one. You'd approach a non-explosive collision in the same way, just with planet-coloured rocks and dust instead of fire.

01. Plan your planets

space mashup1

I plan my composition, giving basic shading and texture to the planets. I don't spend too much time on the details yet, because a chunk of both planets will be obscured by the collision. Next, I erase part of the smaller planet so it looks like it's smashing into the larger one, rather than floating in front of it.

02. Add layers

space mashup 2

On a new layer, I use a soft round brush to paint hot oranges and yellows around the base of where the two planets are colliding with one another. Remember that a planetary impact like this isn't going to be nice and neat. The debris the enormous smash creates will shoot outwards in an irregular pattern.

03. Use a soft brush

space mashup 3

Using an irregular soft brush, I refine the impact. 
I vary the orange, yellow and whites, and keep a solid ring around the planet rim with bits of debris shooting out from the force of the impact. Finally, 
I paint in a hot orange flare 
at low opacity to muddy the edges and create a sense of depth in my image

04. Finish with detail

space mashup 4

With the same brush, but set to a smaller size, I add in details such as little individual flames with specks of fire flying off. You don't need too much detail to achieve a good effect. I also punched up my values here, applying white tones to the centre of the explosion to convey the heat that's generated.

Artist's Secret: Custom Soft Brush

For clouds and flames, soft brushes are ideal. I find the Round brush lacking, so I opt for an irregular soft brush like this one. It creates a much more organic stroke and works equally well at large and small sizes.

Words: Lauren K Cannon (opens in new tab)

Lauren is a fantasy artist who specialises in the surreal. She lives in a small woodland village in New Jersey, US. This article originally appeared in ImagineFX (opens in new tab) issue 60.

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