public void GenerateAt(int x, int y)
{
int corners = 0;
for (int i = 0; i < 4; i++)
{
if (map[x + i / 2, y + i % 2] < 0)
{
corners |= 1 << i;
}
}
if (corners == 0 || corners == 15)
{
return;
}
VertexPositionColor[] vs = new VertexPositionColor[10];
Color c = Color.LightSteelBlue;
vs[0] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 0) * Size, 0), c);
vs[1] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 0) * Size, 0), c);
vs[2] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 0) * Size, 0), c);
vs[3] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 1) * Size, 0), c);
vs[4] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 1) * Size, 0), c);
vs[5] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 1) * Size, 0), c);
vs[6] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 1) * Size, 0), c);
vs[7] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 0) * Size, 0), c);
OutlineBuffer.SetData <VertexPositionColor>(OutlineLocation * VertexPositionColor.VertexDeclaration.VertexStride, vs, 0, 8, VertexPositionColor.VertexDeclaration.VertexStride);
OutlineLocation += 8;
QEF qef = new QEF();
Vector3 average_normal = new Vector3();
for (int i = 0; i < 4; i++)
{
int c1 = edges[i, 0];
int c2 = edges[i, 1];
int m1 = (corners >> c1) & 1;
int m2 = (corners >> c2) & 1;
if (m1 == m2)
{
continue;
}
float d1 = map[x + c1 / 2, y + c1 % 2];
float d2 = map[x + c2 / 2, y + c2 % 2];
Vector2 p1 = new Vector2((float)((c1 / 2)), (float)((c1 % 2)));
Vector2 p2 = new Vector2((float)((c2 / 2)), (float)((c2 % 2)));
Vector2 intersection = Sampler.GetIntersection(p1, p2, d1, d2);
Vector2 normal = Sampler.GetNormal(intersection + new Vector2(x, y)); //GetNormal(x, y);
average_normal += new Vector3(normal, 0);
qef.Add(intersection, normal);
}
average_normal /= (float)qef.Intersections.Count;
average_normal.Normalize();
vertices[x, y] = qef.Solve2(0, 16, 0);
Vector2 p = vertices[x, y];
Color n_c = new Color(average_normal * 0.5f + Vector3.One * 0.5f);
VertexPositionColorNormal v = new VertexPositionColorNormal(new Vector3((p.X + x) * Size, (p.Y + y) * Size, 0), n_c, average_normal);
Vertices.Add(v);
vertex_indexes[x, y] = VertexCount;
VertexCount++;
}
public void GenerateAt(int x, int y)
{
int corners = 0;
for (int i = 0; i < 4; i++)
{
if (map[x + i / 2, y + i % 2] < 0)
corners |= 1 << i;
}
if (corners == 0 || corners == 15)
return;
VertexPositionColor[] vs = new VertexPositionColor[10];
Color c = Color.LightSteelBlue;
vs[0] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 0) * Size, 0), c);
vs[1] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 0) * Size, 0), c);
vs[2] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 0) * Size, 0), c);
vs[3] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 1) * Size, 0), c);
vs[4] = new VertexPositionColor(new Vector3((x + 1) * Size, (y + 1) * Size, 0), c);
vs[5] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 1) * Size, 0), c);
vs[6] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 1) * Size, 0), c);
vs[7] = new VertexPositionColor(new Vector3((x + 0) * Size, (y + 0) * Size, 0), c);
OutlineBuffer.SetData<VertexPositionColor>(OutlineLocation * VertexPositionColor.VertexDeclaration.VertexStride, vs, 0, 8, VertexPositionColor.VertexDeclaration.VertexStride);
OutlineLocation += 8;
QEF qef = new QEF();
Vector3 average_normal = new Vector3();
for (int i = 0; i < 4; i++)
{
int c1 = edges[i, 0];
int c2 = edges[i, 1];
int m1 = (corners >> c1) & 1;
int m2 = (corners >> c2) & 1;
if (m1 == m2)
continue;
float d1 = map[x + c1 / 2, y + c1 % 2];
float d2 = map[x + c2 / 2, y + c2 % 2];
Vector2 p1 = new Vector2((float)((c1 / 2)), (float)((c1 % 2)));
Vector2 p2 = new Vector2((float)((c2 / 2)), (float)((c2 % 2)));
Vector2 intersection = Sampler.GetIntersection(p1, p2, d1, d2);
Vector2 normal = Sampler.GetNormal(intersection + new Vector2(x, y));//GetNormal(x, y);
average_normal += new Vector3(normal, 0);
qef.Add(intersection, normal);
}
average_normal /= (float)qef.Intersections.Count;
average_normal.Normalize();
vertices[x, y] = qef.Solve2(0, 16, 0);
Vector2 p = vertices[x, y];
Color n_c = new Color(average_normal * 0.5f + Vector3.One * 0.5f);
VertexPositionColorNormal v = new VertexPositionColorNormal(new Vector3((p.X + x) * Size, (p.Y + y) * Size, 0), n_c, average_normal);
Vertices.Add(v);
vertex_indexes[x, y] = VertexCount;
VertexCount++;
}
public bool ConstructLeaf(ref int v_index, List<VertexPositionColorNormal> vertices, int grid_size)
{
int corners = 0;
float[,] samples = new float[2, 2];
for (int i = 0; i < 4; i++)
{
if ((samples[i / 2, i % 2] = Sampler.Sample(position + new Vector2(i / 2, i % 2))) < 0)
corners |= 1 << i;
}
if (corners == 0 || corners == 15)
return false;
QEF qef = new QEF();
Vector3 average_normal = new Vector3();
for (int i = 0; i < 4; i++)
{
int c1 = Sampler.Edges[i, 0];
int c2 = Sampler.Edges[i, 1];
int m1 = (corners >> c1) & 1;
int m2 = (corners >> c2) & 1;
if (m1 == m2)
continue;
float d1 = samples[c1 / 2, c1 % 2];
float d2 = samples[c2 / 2, c2 % 2];
Vector2 p1 = new Vector2((float)((c1 / 2)), (float)((c1 % 2)));
Vector2 p2 = new Vector2((float)((c2 / 2)), (float)((c2 % 2)));
Vector2 intersection = Sampler.GetIntersection(p1, p2, d1, d2);
Vector2 normal = Sampler.GetNormal(intersection + position);//GetNormal(x, y);
average_normal += new Vector3(normal, 0);
qef.Add(intersection, normal);
}
average_normal /= (float)qef.Intersections.Count;
average_normal.Normalize();
draw_info = new QuadtreeDrawInfo();
draw_info.position = qef.Solve2(0, 0, 0);
draw_info.averageNormal = average_normal;
draw_info.corners = corners;
draw_info.index = v_index++;
Color n_c = new Color(average_normal * 0.5f + Vector3.One * 0.5f);
vertices.Add(new VertexPositionColorNormal(new Vector3(position * grid_size + draw_info.position * size * grid_size, 0), n_c, average_normal));
type = QuadtreeNodeType.Leaf;
return true;
}
public bool ConstructLeaf(ref int v_index, List <VertexPositionColorNormal> vertices, int grid_size)
{
int corners = 0;
float[,] samples = new float[2, 2];
for (int i = 0; i < 4; i++)
{
if ((samples[i / 2, i % 2] = Sampler.Sample(position + new Vector2(i / 2, i % 2))) < 0)
{
corners |= 1 << i;
}
}
if (corners == 0 || corners == 15)
{
return(false);
}
QEF qef = new QEF();
Vector3 average_normal = new Vector3();
for (int i = 0; i < 4; i++)
{
int c1 = Sampler.Edges[i, 0];
int c2 = Sampler.Edges[i, 1];
int m1 = (corners >> c1) & 1;
int m2 = (corners >> c2) & 1;
if (m1 == m2)
{
continue;
}
float d1 = samples[c1 / 2, c1 % 2];
float d2 = samples[c2 / 2, c2 % 2];
Vector2 p1 = new Vector2((float)((c1 / 2)), (float)((c1 % 2)));
Vector2 p2 = new Vector2((float)((c2 / 2)), (float)((c2 % 2)));
Vector2 intersection = Sampler.GetIntersection(p1, p2, d1, d2);
Vector2 normal = Sampler.GetNormal(intersection + position); //GetNormal(x, y);
average_normal += new Vector3(normal, 0);
qef.Add(intersection, normal);
}
average_normal /= (float)qef.Intersections.Count;
average_normal.Normalize();
draw_info = new QuadtreeDrawInfo();
draw_info.position = qef.Solve2(0, 0, 0);
draw_info.averageNormal = average_normal;
draw_info.corners = corners;
draw_info.index = v_index++;
Color n_c = new Color(average_normal * 0.5f + Vector3.One * 0.5f);
vertices.Add(new VertexPositionColorNormal(new Vector3(position * grid_size + draw_info.position * size * grid_size, 0), n_c, average_normal));
type = QuadtreeNodeType.Leaf;
return(true);
}