/// <summary>
/// Agregar modelos a una celda
/// </summary>
private void addModelsToCell(GrillaRegularNode node, List <TgcMesh> modelos)
{
foreach (var mesh in modelos)
{
if (TgcCollisionUtils.testAABBAABB(node.BoundingBox, mesh.BoundingBox))
{
node.Models.Add(mesh);
}
}
}
/// <summary>
/// Agregar modelos a una celda
/// </summary>
private void addModelsToCell(GrillaRegularNode node, List <InteractiveObject> modelos)
{
foreach (InteractiveObject modelo in modelos)
{
if (TgcCollisionUtils.testAABBAABB(node.BoundingBox, modelo.mesh.BoundingBox))
{
node.Models.Add(modelo.mesh);
}
}
}
/// <summary>
/// Construye la grilla
/// </summary>
private GrillaRegularNode[,,] buildGrid(List <TgcMesh> modelos, TgcBoundingAxisAlignBox sceneBounds, Vector3 cellDim)
{
var sceneSize = sceneBounds.calculateSize();
var gx = (int)FastMath.Ceiling(sceneSize.X / cellDim.X) + 1;
var gy = (int)FastMath.Ceiling(sceneSize.Y / cellDim.Y) + 1;
var gz = (int)FastMath.Ceiling(sceneSize.Z / cellDim.Z) + 1;
var grid = new GrillaRegularNode[gx, gy, gz];
//Construir grilla
for (var x = 0; x < gx; x++)
{
for (var y = 0; y < gy; y++)
{
for (var z = 0; z < gz; z++)
{
//Crear celda
var node = new GrillaRegularNode();
//Crear BoundingBox de celda
var pMin = new Vector3(sceneBounds.PMin.X + x * cellDim.X, sceneBounds.PMin.Y + y * cellDim.Y,
sceneBounds.PMin.Z + z * cellDim.Z);
var pMax = Vector3.Add(pMin, cellDim);
node.BoundingBox = new TgcBoundingAxisAlignBox(pMin, pMax);
//Cargar modelos en celda
node.Models = new List <TgcMesh>();
addModelsToCell(node, modelos);
grid[x, y, z] = node;
}
}
}
return(grid);
}
