143 lines
3.6 KiB
C#
143 lines
3.6 KiB
C#
using System;
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using System.IO;
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using System.Collections.Generic;
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using System.Globalization;
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using OpenTK;
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namespace org.niclasundharald.engine.graphics
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{
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public class LoadedModel : Model3D
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{
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string sourceName;
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public LoadedModel(string filename)
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{
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sourceName = filename;
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load(new StreamReader(filename));
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}
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public LoadedModel(string filename,float scale)
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{
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sourceName = filename;
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load(new StreamReader(filename),scale);
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}
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private void load(TextReader reader){
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load(reader,1);
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}
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private void load(TextReader reader,float scale){
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List<Vector3> vertexes,normals;
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List<Vector4> colors;
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List<triangle> triangles;
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string line;
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float[] min = new float[3];
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float[] max = new float[3];
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vertexes = new List<Vector3>();
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normals = new List<Vector3>();
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colors = new List<Vector4>();
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triangles = new List<triangle>();
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vertexes.Add(new Vector3());
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normals.Add(new Vector3());
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while ( (line = reader.ReadLine()) != null){
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string[] fields = line.Split(new string[0],StringSplitOptions.RemoveEmptyEntries);
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if (fields.Length > 0)
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switch (fields[0]){
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case "v":
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float x,y,z;
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x = (float)Double.Parse(fields[1],CultureInfo.InvariantCulture);
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y = (float)Double.Parse(fields[2],CultureInfo.InvariantCulture);
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z = (float)Double.Parse(fields[3],CultureInfo.InvariantCulture);
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x *= scale;
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y *= scale;
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z *= scale;
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vertexes.Add( new Vector3(x,y,z) );
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min[0] = min[0] > x ? x : min[0];
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min[1] = min[1] > y ? y : min[1];
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min[2] = min[2] > z ? z : min[2];
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max[0] = max[0] < x ? x : max[0];
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max[1] = max[1] < y ? y : max[1];
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max[2] = max[2] < z ? z : max[2];
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break;
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case "vn":
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normals.Add( -(new Vector3(
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float.Parse(fields[1],CultureInfo.InvariantCulture),
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float.Parse(fields[2],CultureInfo.InvariantCulture),
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float.Parse(fields[3],CultureInfo.InvariantCulture)
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)
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));
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break;
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case "f":
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surfaceindeces si0,si1,si2;
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si0 = new surfaceindeces(fields[1]);
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si1 = new surfaceindeces(fields[2]);
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si2 = new surfaceindeces(fields[3]);
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triangles.Add(new triangle(
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vertexes[si0.vertex],
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vertexes[si1.vertex],
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vertexes[si2.vertex],
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normals[si0.normal],
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normals[si1.normal],
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normals[si2.normal]));
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break;
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}
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}
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Console.WriteLine("Loaded {0}: {1} vertexes {2} normals",sourceName,vertexes.Count,normals.Count);
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Console.WriteLine("Dimensions: {0}/{1}/{2} - {3}/{4}/{5}",min[0],min[1],min[2],max[0],max[1],max[2]);
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vertexes.Clear();
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normals.Clear();
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foreach (triangle t in triangles){
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vertexes.Add( t.a );
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vertexes.Add( t.b );
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vertexes.Add( t.c );
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normals.Add( t.na );
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normals.Add( t.nb );
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normals.Add( t.nc );
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}
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// bind(vertexes.ToArray(),null,normals.ToArray());
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bind(vertexes.ToArray(),null,normals.ToArray());
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}
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struct triangle{
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public Vector3 a,b,c;
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public Vector3 na,nb,nc;
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public triangle(Vector3 a,Vector3 b,Vector3 c,Vector3 na,Vector3 nb,Vector3 nc){
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this.a = a;
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this.b = b;
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this.c = c;
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this.na = na;
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this.nb = nb;
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this.nc = nc;
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}
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}
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struct surfaceindeces {
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public int vertex,texture,normal;
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public surfaceindeces(string token){
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string[] l = token.Split('/');
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vertex = l[0].Length == 0 ? 0 : int.Parse(l[0]);
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texture = l[1].Length == 0 ? 0 : int.Parse(l[1]);
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normal = l[2].Length == 0 ? 0 : int.Parse(l[2]);
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}
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}
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}
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}
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