public static int BuildRectangle(float X, float Y, float Width, float Height)
{
Vertex[] d = new Vertex[4];
for (int i = 0; i < d.Length; ++i) {
d [i] = new Vertex();
d [i].Color = new Vector4(1, 1, 1, 1);
}
d [0].Position.X = X;
d [0].Position.Y = Y;
d [0].TexCoord.X = 0;
d [0].TexCoord.Y = 0;
d [1].Position.X = X;
d [1].Position.Y = Y + Height;
d [1].TexCoord.X = 0;
d [1].TexCoord.Y = 1;
d [2].Position.X = X + Width;
d [2].Position.Y = Y + Height;
d [2].TexCoord.X = 1;
d [2].TexCoord.Y = 1;
d [3].Position.X = X + Width;
d [3].Position.Y = Y;
d [3].TexCoord.X = 1;
d [3].TexCoord.Y = 0;
int tr = GL.GenBuffer();
GL.BindBuffer(BufferTarget.ArrayBuffer, tr);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(d.Length * Vertex.Size), d, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
return tr;
}
public Model(Vertex[] Verts, Bitmap Texture)
{
_buffs = new uint[NUM_BUFFS];
_numverts = Verts.Length;
GL.GenBuffers(NUM_BUFFS, _buffs);
//Vertex Data
GL.BindBuffer(BufferTarget.ArrayBuffer, _buffs [VERT_INDEX]);
GL.BufferData(BufferTarget.ArrayBuffer, (IntPtr)(Verts.Length * Vertex.Size), Verts, BufferUsageHint.StaticDraw);
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
//Texture data
_texid = GLUtil.CreateTexture(Texture);
}
void SetPos(ref Vertex V, float X, float Y, float Z)
{
V.Position.X = X;
V.Position.Y = Y;
V.Position.Z = Z;
}
void BuildWater(HeightMap In, List<Vertex> V, List<ushort> I)
{
int basex = _cx * CHUNK_SIZE;
int basey = _cy * CHUNK_SIZE;
int itr = CHUNK_SIZE / _lod;
for (int x = 0; x < CHUNK_SIZE + itr; x += itr) {
int xp = basex + x;
for (int y = 0; y < CHUNK_SIZE + itr; y += itr) {
int yp = basey + y;
Vertex tmp = new Vertex();
SetPos(ref tmp, xp, 0, yp);
tmp.TexCoord.X = x / (float)CHUNK_SIZE;
tmp.TexCoord.Y = y / (float)CHUNK_SIZE;
tmp.Color = new Vector4(1, 1, 1, 1);
V.Add(tmp);
}
}
for (int x = 0; x < _lod; ++x) {
for (int y = 0; y < _lod; ++y) {
int vi = x + y * (_lod + 1);
I.Add((ushort)(vi + _lod + 1));
I.Add((ushort)(vi));
I.Add((ushort)(vi + 1));
I.Add((ushort)(vi + _lod + 1));
I.Add((ushort)(vi + 1));
I.Add((ushort)(vi + _lod + 2));
}
}
}
void ReadFace(string[] Line, ref List<Vector3> Pos, ref List<Vector3> Norm, ref List<Vector2> Tex, ref List<Vertex> Out)
{
for (int i = 0; i < Line.Length - 1; ++i) {
string[] v = Line [i + 1].Split(FSLASH);
Vertex tmp = new Vertex();
tmp.Position = Pos [int.Parse(v [0]) - 1];
tmp.Color.X = 1;//(float)r.NextDouble();
tmp.Color.Y = 1;//(float)r.NextDouble();
tmp.Color.Z = 1;//(float)r.NextDouble();
tmp.TexCoord = Tex [int.Parse(v [1]) - 1];
tmp.TexCoord.Y = 1 - tmp.TexCoord.Y; //fix sillyness
tmp.Normal = Norm [int.Parse(v [2]) - 1];
Out.Add(tmp);
}
}