The linear topography shown the left side figure mapped the terrain texture
| Chapter 9: Texture 101 | 175 |
|---|
You can just imagine a hiker walking around the sagebrush along the trails. The linear
topography shown on the left side of Figure 9-6 is mapped by the terrain texture. The image has taken shape.Those hiking trails turn out to be ravines of various depths
resulting from terrain displaced by the bump map, which gives the illusion of realism. Pixels
with darkness as the intensity approaches black displace the elevation in a negative height, and when the intensity
approaches white, elevation is increased from the mean.
| 176 | Chapter 9: Texture 101 |
|---|
The following function checks for bump map support on the current device:
|
||
|---|---|---|
|
