8. Rendering Techniques
Most of this book is about manipulating and combining existing image
materials. However, the GIMP is also an excellent tool for creating
and enhancing image materials. In particular, there are many tools in
the GIMP that can be used to render image objects. By this, I mean
that image objects can be made to look more three-dimensional by
doting them with textures, shadings, lighting effects, and shadows.
Many intriguing effects can be created in this way, and that is the
subject of this chapter.
The first half of this chapter covers some basic GIMP tools useful for
rendering. These include the Bucket Fill tool, the Gradient tool, the Emboss filter, and the Bump map
filter. The second half of the chapter describes techniques for
creating shadows and for combining these with several other image