Painting Lumps, Divots and Holes
By Neil Blevins
Created On: Nov 11th 2013
Updated On: Oct 17th 2025
Software: Any

Here's a trick to painting lumps, bumps, divots, holes, pimples, etc in 2d paint software. First I will show what these are supposed to look like using a 3d application to simulate how light reacts to these shapes, then I'll show you a 2d painting demo using what we learned in the first step, and then a more procedural way to achieve this look in Photoshop using the Emboss layer style.

You have two choices with this lesson, watch me discuss the issue in the video below, or read the full text.


3D Simulation

So let's start in 3D. Here's 3 seperate planes, the one on the left bumps inwards, the second bumps outwards, and the third bumps inward but has a hole.



The lighting is all from above the surface. Notice how the light and dark appear in relation to the light.



And notice how these areas of light and dark move when the lighting moves.



They always have the same relation to the light direction.

2D Paint

Now lets do some 2d painting. Here's a weird alien plant I made several years ago, which needed both holes and also lumps on it. Notice how right now the plant surface looks really flat.


Take a soft brush and paint a darker and light color as seen in the image below. Within seconds, you can give dimensionality to that hole, and add some lumps / bulges to the surface.


Emboss In Photoshop

As well as painting this by hand, if you want to do something that's a little more mechanical, Photoshop has a filter called emboss that can be used to do the same sort of effect. This does it algorithmically, but the theory behind what it's doing is identical to what we just did manually with hand paint.



To learn more about the Emboss technique, visit my tutorial Painting Starship Panels In Photoshop.


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