» CS 455 Lecture 18 – Interpolation

CS 455 Lecture 18 – Interpolation

April 15, 2015 by Chris Johnson. Filed under cs455, lectures, spring 2015.

As a lab exercise:

Pull from the class code repository.
Add an Interpolate method to your Heightmap class. It’s like the operator() method, except it takes in float indices that lie somewhere within the heightmap grid—not necessarily at locations on the integer lattice. Use bilinear interpolation to find the height as a blend of the four nearest heights at integer locations.
When the user advances or strafes, use the camera’s from’s xz-location to look up the height in the terrain. Call Camera::SetHeight to raise the camera accordingly.
Send an email screenshot from a high point on the terrain.