public LightMap(ModelInstance mi, Mesh m)
{
model = mi;
mesh = m;
width = mesh.texels.GetLength(0);
height = mesh.texels.GetLength(1);
texels = new Texel[width,height];
patches = new List<Patch>();
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
texels[i,j] = new Texel();
foreach (Patch p in mesh.texels[i,j].patches)
{
Patch temp = new Patch(p,model.transform);
texels[i,j].add(temp);
patches.Add(temp);
}
}
}
name = "lm" + model.layoutName + "_" + convertToBase36(model.id) + "_0" + mesh.id;
}
//Make patches for a lightmap with dimensions [width,height]
public void generatePatches(int width, int height)
{
if (!hasGeneratedPatches && isLightmapped)
{
hasGeneratedPatches = true;
//*
texels = new Texel[width, height];
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
texels[i, j] = new Texel();
}
}
foreach (Triangle t in tris)
{
int test = (int)(t.a.X * width);
int minX = (int)Math.Floor(t.a.X * width);
int minY = (int)Math.Floor(t.a.Y * height);
int maxX = (int)Math.Ceiling(t.a.X * width);
int maxY = (int)Math.Ceiling(t.a.Y * height);
int nextMinX = (int)Math.Floor(t.b.X * width);
int nextMinY = (int)Math.Floor(t.b.Y * height);
int nextMaxX = (int)Math.Ceiling(t.b.X * width);
int nextMaxY = (int)Math.Ceiling(t.b.Y * height);
maxX = Math.Max(maxX, nextMaxX);
maxY = Math.Max(maxY, nextMaxY);
minX = Math.Min(minX, nextMinX);
minY = Math.Min(minY, nextMinY);
nextMinX = (int)Math.Floor(t.c.X * width);
nextMinY = (int)Math.Floor(t.c.Y * height);
nextMaxX = (int)Math.Ceiling(t.c.X * width);
nextMaxY = (int)Math.Ceiling(t.c.Y * height);
maxX = Math.Max(maxX, nextMaxX) + 1;
maxY = Math.Max(maxY, nextMaxY) + 1;
minX = Math.Min(minX, nextMinX) - 1;
minY = Math.Min(minY, nextMinY) - 1;
/*
* maxX = Math.Min(width, maxX + 1);
* maxY = Math.Min(height, maxY + 1);
* minX = Math.Max(0, minX - 1);
* minY = Math.Max(0, minY - 1);
* //*/
for (int i = minX; i < maxX; i++)
{
for (int j = minY; j < maxY; j++)
{
Vector2 topLeft = new Vector2(((float)i) / width, ((float)j + 1) / height);
Vector2 bottomRight = new Vector2(((float)(i + 1)) / width, ((float)j) / height);
if (!t.isDegenerate && t.isOnUVPixel(topLeft, bottomRight))
{
// Position normal emmision reflection
texels[i % width, j % height].add(new Patch(t.uvTo3d(topLeft, bottomRight), t.normal, new Vector3(), new Vector3(0.7f, 0.7f, 0.7f)));
}
}
}
}
}
}