Task BuildCellsAsync(TerrainGeometryCellsComponent geo, TerrainConfigurationComponent config)
{
// Set the height and width of each terrain cell to a fixed 33x33 vertex array.
int cellHeight = 33;
int cellWidth = 33;
// Calculate the number of cells needed to store the terrain data.
int cellRowCount = (config.Width - 1) / (cellWidth - 1);
var m_CellCount = cellRowCount * cellRowCount;
// Create the terrain cell array.
var TerrainCells = new TerrainGeometryCellsComponent.TerrainCell[m_CellCount];
try {
// Loop through and initialize all the terrain cells.
for (int j = 0; j < cellRowCount; j++)
{
for (int i = 0; i < cellRowCount; i++)
{
int index = (cellRowCount * j) + i;
TerrainCells[index] = geo.BuildCell(i, j, cellHeight, cellWidth, config.Width);
}
}
}catch (Exception ex) {
ex.ToString();
}
geo.Cells = TerrainCells;
return(Task.FromResult(0));
}
static void BuildGeometry(Vector3[] HeightMap, TerrainConfigurationComponent config, TerrainGeometryCellsComponent geometry)
{
var width = config.Width;
var height = config.Height;
var count = (width - 1) * (height - 1) * 6;
var indices = new int[count];
var vertices = HeightMap;//.ToArray();
var index = 0;
for (int j = 0; j < (height - 1); j++)
{
var row = height * j;
var row2 = height * (j + 1);
for (int i = 0; i < (width - 1); i++)
{
var indx1 = row + i;
var indx2 = row + i + 1;
var indx3 = row2 + i;
var indx4 = row2 + i + 1;
indices[index++] = indx1;
indices[index++] = indx2;
indices[index++] = indx3;
indices[index++] = indx2;
indices[index++] = indx4;
indices[index++] = indx3;
}
}
var normals = vertices.CalculateNormals(indices);
geometry.Indices = indices.ToImmutableArray();
geometry.Positions = vertices.ToImmutableArray();
geometry.Normals = normals.ToImmutableArray();
CalculateTextureCoordinates(HeightMap, width, height, config.TextureRepeat, out var t1, out var t2);
geometry.TextureCoordinates = t1.ToImmutableArray();
geometry.NormalMapTexCoordinates = t2;
geometry.Color = V4Colors.White;
ComputeTangents(geometry);
//Light.SetAmbientColor(0.05f, 0.05f, 0.05f, 1.0f);
//Light.SetDiffuseColor(1.0f, 1.0f, 1.0f, 1.0f);
}
public TerrainGeneratorComponent(int width, int height, TerrainConfigurationComponent terrainParams)
{
this.width = width;
this.height = height;
this.terrainParams = terrainParams;
}
