Beispiel #1
0
		public static Vector Cross(Vector v1, Vector v2) {
			Vector result = new Vector();
			result.X = (v1.Y * v2.Z) - (v1.Z * v2.Y);
			result.Y = (v1.Z * v2.X) - (v1.X * v2.Z);
			result.Z = (v1.X * v2.Y) - (v1.Y * v2.X);
			return result;
		}
Beispiel #2
0
		public static Vector Normalize(Vector v1) {
			Vector result = new Vector(v1.X, v1.Y, v1.Z, v1.W);
			float length = result.X * result.X + result.Y * result.Y + result.Z * result.Z;
			length = (float)Math.Sqrt(length);
			result.X /= length; result.Y /= length; result.Z /= length;
			return result;
		}
Beispiel #3
0
		public static Mesh Load(string path) {
			Mesh mesh = new Mesh();
			mesh.Name = System.IO.Path.GetFileNameWithoutExtension(path);

			Vector[] vertices = new Vector[0];
			Color[] colors = new Color[0];
			uint[] triangles = new uint[0];

			uint v = 0; //The Vertices index
			uint c = 0; //The Colors index
			uint t = 0; //The Triangles index
			uint j = 0; //The current index to offset triangles by

			string[] lines = System.IO.File.ReadAllLines(path);
			int vertCount = 0;
			int triCount = 0;
			foreach (string line in lines) {
				if (line.StartsWith("v")) {
					vertCount++;
				}
				if (line.StartsWith("t")) {
					triCount += 3;
				}
			}
			vertices = new Vector[vertCount];
			colors = new Color[vertCount];
			triangles = new uint[triCount];
			for (int i = 0; i < lines.Length; i++) {
				string line = lines[i];
				if (line == "") continue;
				string[] bits = line.Split(" ".ToCharArray());
				if (bits[0] == "v") {
					vertices[v] = new Vector(float.Parse(bits[1]), float.Parse(bits[2]), float.Parse(bits[3]));
					v++;
				} else if (bits[0] == "c") {
					colors[c] = new Color(byte.Parse(bits[1]), byte.Parse(bits[2]), byte.Parse(bits[3]), ((bits.Length > 4) ? byte.Parse(bits[4]) : (byte)255));
					c++;
				} else if (bits[0] == "t") {
					triangles[t + 0] = uint.Parse(bits[1]) + j;
					triangles[t + 1] = uint.Parse(bits[2]) + j;
					triangles[t + 2] = uint.Parse(bits[3]) + j;
					t += 3;
				} else if (bits[0] == "#") {
					j = v;
				}
			}
			mesh.Vertices = vertices;
			mesh.Colors = colors;
			mesh.Triangles = triangles;
			mesh.CalculateNormals();
			return mesh;
		}