If you’d like to show even more 3-dimensional detail, draw a dotted or dashed line that curves across the circle in the opposite direction of your line. The dotted line implies that you’re looking behind the sphere.
For example, if light hits the top right of the sphere, press firmly along the bottom left portion of the sphere to make a shaded crescent.
It’s important to make the squares the same size or they won’t form a cube when you connect them.
Make the straight lines connecting each corner parallel to make the cube realistic.
To make the cube even more realistic, draw a square-shaped shadow coming from the dark side of the cube.
Make the V shape as large as you’d like the cone to be.
Add a little more shading along the bottom of the cone near the darker side of the cone.
Make the top angle of the side pyramid between 20 and 40 degrees so your pyramid doesn’t look unbalanced.
If you’d like to include a shadow, shade in a triangular shape coming from the bottom of the pyramid.
You can make any type of triangle you like. Make an equilateral, isosceles, or a right triangle, for instance.
Ensure that the triangles aren’t touching or it will be difficult to draw the remaining lines for the prism.
If you’d like the light to hit the front of the prism, heavily shade in the side.
