public static Mesh createPlane(int w, int h)
{
if (w <= 0 || h <= 0)
{
return(null);
}
CVF[] v = new CVF[(w + 1) * (h + 1)];
int[] i = new int[w * h * 6];
for (int x = 0; x <= w; x++)
{
for (int y = 0; y <= h; y++)
{
v[x * (h + 1) + y] = new CVF(new Vector3((1.0f / w) * x - 0.5f, 0, (1.0f / h) * y - 0.5f), Vector3.UnitY, new Vector2((1.0f / w) * x, (1.0f / h) * y));
}
}
int a = 0;
for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
i[a++] = (h + 1) * x + y;
i[a++] = (h + 1) * (x + 1) + y;
i[a++] = (h + 1) * (x + 1) + y + 1;
i[a++] = (h + 1) * x + y;
i[a++] = (h + 1) * (x + 1) + y + 1;
i[a++] = (h + 1) * x + y + 1;
}
}
return(new Mesh(v, i));
}
public static Mesh CreateCubeMesh(float round)
{
CVF[] v = new CVF[24];
int num = 0;
Vector2 a = new Vector2(0), b = new Vector2(0, 1), c = new Vector2(1), d = new Vector2(1, 0);
Vector3 norm = new Vector3(0, 0, -1); //Front
v[num++] = new CVF(new Vector3(-1, -1, -1), norm, a); //0
v[num++] = new CVF(new Vector3(1, -1, -1), norm, b); //1
v[num++] = new CVF(new Vector3(1, 1, -1), norm, c); //2
v[num++] = new CVF(new Vector3(-1, 1, -1), norm, d); //3
norm = new Vector3(-1, 0, 0); //Left
v[num++] = new CVF(new Vector3(-1, -1, 1), norm, a); //4
v[num++] = new CVF(new Vector3(-1, -1, -1), norm, b); //5
v[num++] = new CVF(new Vector3(-1, 1, -1), norm, c); //6
v[num++] = new CVF(new Vector3(-1, 1, 1), norm, d); //7
norm = new Vector3(0, 0, 1); //Back
v[num++] = new CVF(new Vector3(1, -1, 1), norm, a); //8
v[num++] = new CVF(new Vector3(-1, -1, 1), norm, b); //9
v[num++] = new CVF(new Vector3(-1, 1, 1), norm, c); //10
v[num++] = new CVF(new Vector3(1, 1, 1), norm, d); //11
norm = new Vector3(1, 0, 0); //Right
v[num++] = new CVF(new Vector3(1, -1, -1), norm, a); //12
v[num++] = new CVF(new Vector3(1, -1, 1), norm, b); //13
v[num++] = new CVF(new Vector3(1, 1, 1), norm, c); //14
v[num++] = new CVF(new Vector3(1, 1, -1), norm, d); //15
norm = new Vector3(0, 1, 0); //Top
v[num++] = new CVF(new Vector3(-1, 1, -1), norm, a); //16
v[num++] = new CVF(new Vector3(1, 1, -1), norm, b); //17
v[num++] = new CVF(new Vector3(1, 1, 1), norm, c); //18
v[num++] = new CVF(new Vector3(-1, 1, 1), norm, d); //19
norm = new Vector3(0, -1, 0); //Bottom
v[num++] = new CVF(new Vector3(-1, -1, 1), norm, a); //20
v[num++] = new CVF(new Vector3(1, -1, 1), norm, b); //21
v[num++] = new CVF(new Vector3(1, -1, -1), norm, c); //22
v[num++] = new CVF(new Vector3(-1, -1, -1), norm, d); //23
for (num = 0; num < 24; num++)
{
Vector3 normal0 = v[num].Normal, normal1 = v[num].Position;
normal1.Normalize();
round = MathHelper.Clamp(round, 0, 1);
v[num].Normal = normal0 * (1 - round) + normal1 * round;
}
int[] i = new int[36];
for (int i0 = 0; i0 < 6; i0++)
{
i[(6 * i0)] = 4 * i0;
i[(6 * i0) + 1] = 4 * i0 + 2;
i[(6 * i0) + 2] = 4 * i0 + 3;
i[(6 * i0) + 3] = 4 * i0;
i[(6 * i0) + 4] = 4 * i0 + 1;
i[(6 * i0) + 5] = 4 * i0 + 2;
}
//0,2,3,
//0,1,2,
return(new Mesh(v, i));
}
public static Mesh CreateCubeMesh(float round)
{
CVF[] v = new CVF[24];
int num = 0;
Vector2 a = new Vector2(0), b = new Vector2(0, 1), c = new Vector2(1), d = new Vector2(1, 0);
Vector3 norm = new Vector3(0, 0, -1);//Front
v[num++] = new CVF(new Vector3(-1, -1, -1), norm, a);//0
v[num++] = new CVF(new Vector3(1, -1, -1), norm, b);//1
v[num++] = new CVF(new Vector3(1, 1, -1), norm, c);//2
v[num++] = new CVF(new Vector3(-1, 1, -1), norm, d);//3
norm = new Vector3(-1, 0, 0);//Left
v[num++] = new CVF(new Vector3(-1, -1, 1), norm, a);//4
v[num++] = new CVF(new Vector3(-1, -1, -1), norm, b);//5
v[num++] = new CVF(new Vector3(-1, 1, -1), norm, c);//6
v[num++] = new CVF(new Vector3(-1, 1, 1), norm, d);//7
norm = new Vector3(0, 0, 1);//Back
v[num++] = new CVF(new Vector3(1, -1, 1), norm, a);//8
v[num++] = new CVF(new Vector3(-1, -1, 1), norm, b);//9
v[num++] = new CVF(new Vector3(-1, 1, 1), norm, c);//10
v[num++] = new CVF(new Vector3(1, 1, 1), norm, d);//11
norm = new Vector3(1, 0, 0);//Right
v[num++] = new CVF(new Vector3(1, -1, -1), norm, a);//12
v[num++] = new CVF(new Vector3(1, -1, 1), norm, b);//13
v[num++] = new CVF(new Vector3(1, 1, 1), norm, c);//14
v[num++] = new CVF(new Vector3(1, 1, -1), norm, d);//15
norm = new Vector3(0, 1, 0);//Top
v[num++] = new CVF(new Vector3(-1, 1, -1), norm, a);//16
v[num++] = new CVF(new Vector3(1, 1, -1), norm, b);//17
v[num++] = new CVF(new Vector3(1, 1, 1), norm, c);//18
v[num++] = new CVF(new Vector3(-1, 1, 1), norm, d);//19
norm = new Vector3(0, -1, 0);//Bottom
v[num++] = new CVF(new Vector3(-1, -1, 1), norm, a);//20
v[num++] = new CVF(new Vector3(1, -1, 1), norm, b);//21
v[num++] = new CVF(new Vector3(1, -1, -1), norm, c);//22
v[num++] = new CVF(new Vector3(-1, -1, -1), norm, d);//23
for (num = 0; num < 24; num++)
{
Vector3 normal0 = v[num].Normal, normal1 = v[num].Position;
normal1.Normalize();
round = MathHelper.Clamp(round, 0, 1);
v[num].Normal = normal0 * (1 - round) + normal1 * round;
}
int[] i = new int[36];
for (int i0 = 0; i0 < 6; i0++)
{
i[(6 * i0)] = 4 * i0;
i[(6 * i0) + 1] = 4 * i0 + 2;
i[(6 * i0) + 2] = 4 * i0 + 3;
i[(6 * i0) + 3] = 4 * i0;
i[(6 * i0) + 4] = 4 * i0 + 1;
i[(6 * i0) + 5] = 4 * i0 + 2;
}
//0,2,3,
//0,1,2,
return new Mesh(v, i);
}
public Mesh(CVF[] v, int[] i)
{
vertices = v;
indices = i;
}
public Mesh(CVF[] v, int[] i, Material m)
{
vertices = v;
indices = i;
material = m;
}
public static Mesh createPlane(int w, int h)
{
if (w <= 0 || h <= 0)
return null;
CVF[] v = new CVF[(w + 1) * (h + 1)];
int[] i = new int[w * h * 6];
for (int x = 0; x <= w; x++)
{
for (int y = 0; y <= h; y++)
{
v[x * (h + 1) + y] = new CVF(new Vector3((1.0f / w) * x - 0.5f, 0, (1.0f / h) * y - 0.5f), Vector3.UnitY, new Vector2((1.0f / w) * x, (1.0f / h) * y));
}
}
int a = 0;
for (int x = 0; x < w; x++)
{
for (int y = 0; y < h; y++)
{
i[a++] = (h + 1) * x + y;
i[a++] = (h + 1) * (x + 1) + y;
i[a++] = (h + 1) * (x + 1) + y + 1;
i[a++] = (h + 1) * x + y;
i[a++] = (h + 1) * (x + 1) + y + 1;
i[a++] = (h + 1) * x + y + 1;
}
}
return new Mesh(v, i);
}
