internal TerrainModel(int numPatchesX, int numPatchesY, Patch[,] patches, HeightMap heightMap, float tau, Effect effect)
{
HeightMap = heightMap;
_numPatchesX = numPatchesX;
_numPatchesY = numPatchesY;
_patches = patches;
_tau = tau;
Effect = effect;
}
internal void SetNeighbours(Patch pLeft, Patch pRight, Patch pTop, Patch pBottom)
{
_left = pLeft;
_right = pRight;
_top = pTop;
_bottom = pBottom;
}