Introduction to Displacement
Displacement maps are grayscale textures applied to the mesh that
push and pull the vertices according to the image’s grayscale value.
Displacement usually requires a high-resolution mesh for a finer
level of detail because it deforms the mesh (unlike bump maps that
only create the illusion of surface relief). An object with displace-
ment can be at a low resolution in the viewport (for speed and
real-time rendering issues) and at a ultra-high resolution at render
time.
In Figure 10-31, the image at left shows how the procedural dis-
placement map is applied on the plane. The image on the right
shows how this information deforms the mesh.
Figure 10-32 shows another displacement example. The checker-
board mapping, in pure black and white, produces very sharp results
when the resolution of the mesh allows it.
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Chapter 10 – Ogre Head
Figure 10-31
Figure 10-32