Rubble Drawing Method 1 Type: Pebble, rock, concrete, other hard objects Size: Small stone to about the size of a fist

1 Without thinking too deeply, draw an outline. Try to do it in one stroke, and draw in distortions as you see fit.

2 Divide the surface into many large regions, matching them up with the outline. Again, draw in distortions as you see fit.

3 Add more details, and draw in shading lines. The trick is to vary the flow and weight of the lines, and avoid being too consistent.

Rubble Drawing Method 2 Type: Rock, concrete Size: Tens of centimeters to a few meters

1 Imagine the final shape, and draw an outline to match. Because the rock will be large, don't add too many sharp points—the whole thing should look round.

2 Draw the surface. In this example, the top part was originally the face of the rock, while the bottom part was broken off.

3 Finish the surface and shading. Coincidentally, the outline appears natural when lines extending from the warped portion are filled in to make a surface. The surface corners don't form sharply acute angles, and it appears as if you can distinguish multiple layers.