public TriangularModelMesh(ParticleModel model, ClothSimulation settings)
{
this.model = model;
GameObject meshGameObject = new GameObject("TriangularModelMesh");
MeshFilter meshFilter = meshGameObject.AddComponent <MeshFilter>();
this.mesh = meshFilter.mesh;
MeshRenderer meshRenderer = meshGameObject.AddComponent <MeshRenderer>();
Material defaultMaterial = new Material(Shader.Find("VR/SpatialMapping/Wireframe"));
meshRenderer.sharedMaterial = defaultMaterial;
this.mesh.Clear();
int subdivisions = 6;
int modelWH = this.model.getWidthHeight();
points = new Vector3[(int)Math.Pow((modelWH + (modelWH - 1)) * subdivisions, 2)];
Array.Copy(model.positions, points, model.positions.Length);
int index = model.positions.Length;
List <int> triangles = new List <int>();
List <SubLine> SubLines = new List <SubLine>();
// horizontal
for (int j = 0; j < modelWH; j++)
{
for (int i = 0; i < modelWH - 1; i++)
{
int left = j * modelWH + i;
int right = left + 1;
SubLine subLine = bezier > 0 ? new BezierSubline(left, right, index, index + subdivisions) : new SubLine(left, right, index, index + subdivisions);
index = index + subdivisions;
if (i > 0)
{
SubLine prev = SubLines[(modelWH - 1) * j + (i - 1)];
subLine.link(ref prev);
}
SubLines.Add(subLine);
}
}
// vertical
for (int j = 0; j < modelWH - 1; j++)
{
for (int i = 0; i < modelWH; i++)
{
int bottom = j * modelWH + i;
int top = bottom + modelWH;
SubLine subLine = bezier > 0 ? new BezierSubline(bottom, top, index, index + subdivisions) : new SubLine(bottom, top, index, index + subdivisions);
index = index + subdivisions;
if (j > 0)
{
SubLine prev = SubLines[modelWH * (modelWH - 1) + modelWH * (j - 1) + i];
subLine.link(ref prev);
}
SubLines.Add(subLine);
}
}
List <SubGrid> SubGrids = new List <SubGrid>();
for (int j = 0; j < modelWH - 1; j++)
{
for (int i = 0; i < modelWH - 1; i++)
{
int a = modelWH * j + i;
int b = a + 1;
int c = a + modelWH;
int d = c + 1;
SubLine bottom = SubLines[(modelWH - 1) * j + i];
SubLine top = SubLines[(modelWH - 1) * (j + 1) + i];
SubLine left = SubLines[(modelWH - 1) * modelWH + modelWH * j + i];
SubLine right = SubLines[(modelWH - 1) * modelWH + modelWH * j + i + 1];
SubGrid grid = new SubGrid(ref bottom, ref right, ref left, ref top, index, subdivisions, subdivisions);
index += subdivisions * subdivisions;
if (i > 0)
{
SubGrid prev = SubGrids[(modelWH - 1) * j + i - 1];
grid.linkHorizontal(ref prev);
}
if (j > 0)
{
SubGrid prev = SubGrids[(modelWH - 1) * (j - 1) + i];
grid.linkVertical(ref prev);
}
SubGrids.Add(grid);
// Add triangles for the grid
triangles.AddRange(grid.GenTriangles());
}
}
List <int> included = new List <int>(new HashSet <int>(triangles));
// Calculate the uvs
Vector2[] uvs = new Vector2[points.Length]; // uv maps texture to points
float du = 1.0f / modelWH;
float dv = 1.0f / modelWH;
for (int u = 0; u < modelWH; u++)
{
for (int v = 0; v < modelWH; v++)
{
uvs[u * modelWH + v] = new Vector2(u * du, v * dv);
}
}
if (showGridPoints)
{
gridPointsObjectManager = new MonoManager <SceneObject>();
GameObject unitPrefab = new GameObject();
unitPrefab.AddComponent <SceneObject>();
unitPrefab.AddComponent <MeshFilter>();
unitPrefab.AddComponent <MeshRenderer>();
gridPointsObjectManager.OverrideGameObject(unitPrefab);
Mesh mesh = Assets.Scripts.Tools.Geometry.PrimitiveHelper.GetPrimitiveMesh(PrimitiveType.Sphere);
Material material = new Material(Shader.Find("Transparent/Diffuse"));
material.color = Color.yellow;
for (int i = model.positions.Length; i < points.Length; i++)
{
var newObj = gridPointsObjectManager.New();
newObj.Init(mesh, material);
newObj.transform.position = points[i];
}
}
SubLines.ForEach(sl => {
sl.setUV(ref uvs);
});
this.subLines = SubLines.ToArray();
SubGrids.ForEach(sl => {
sl.setUV(ref uvs);
});
this.subGrids = SubGrids.ToArray();
SubLines.ForEach(sl => {
sl.setPoints(ref points);
});
SubGrids.ForEach(sl => {
sl.setPoints(ref points);
});
// Set unit mesh
this.mesh.vertices = points;
this.mesh.uv = uvs;
this.mesh.triangles = addBothSide(triangles.ToArray());
}