public static void readMaterialFile(string mttlibLine, ref MaterialManager.Material material)
{
// mtllib voxelColor.mtl
char[] space = { ' ' };
string[] matFileLines = mttlibLine.Split(space);
string filename = matFileLines[1];
material = MaterialManager.loadMaterial(filename);
}
public Mesh(List <PosNorTexVertex> vertices, MaterialManager.Material meshMaterial)
{
BufferHandle = GL.GenBuffer();
VAOHandle = GL.GenVertexArray();
IndexBufferHandle = GL.GenBuffer();
VertexAmount = vertices.Count;
Error.checkGLError("Mesh constructor");
rawVertices = vertices;
MeshMaterial = meshMaterial;
// Transformcomponent
worldMatrix = new Matrix4Uniform("modelMatrix");
worldMatrix.Matrix = Matrix4.Identity;
// RenderingComponent
Scale = 1.0f;
DiffuseColor = new Color4(1.0f, 1.0f, 1.0f, 1.0f);
rotationY = 0.0f;
}
// Reads on .obs file
static public Mesh CreateFromFile(string filename)
{
List <OBJFileReader.OBJFace> faces = new List <OBJFileReader.OBJFace>();
List <Vector3> positions = new List <Vector3>();
List <Vector3> normals = new List <Vector3>();
List <Vector2> texCoords = new List <Vector2>();
MaterialManager.Material meshMaterial = null;
OBJFileReader.readOBJ(filename, ref faces, ref positions, ref normals, ref texCoords, ref meshMaterial);
// Create positions
List <PosNorTexVertex> vertices = new List <PosNorTexVertex>(positions.Count);
Console.WriteLine("Mesh read from " + filename);
foreach (OBJFileReader.OBJFace face in faces)
{
vertices.Add(new PosNorTexVertex(positions[(int)face.positionIndex - 1], normals[(int)face.normalIndex - 1], texCoords[(int)face.texCoordIndex - 1]));
}
return(new Mesh(vertices, meshMaterial));
}
public static void readOBJ(string filename, ref List <OBJFileReader.OBJFace> faces, ref List <Vector3> positions, ref List <Vector3> normals, ref List <Vector2> texCoords, ref MaterialManager.Material material)
{
// Sections
// . normals
// . texcoords
// . verts
// . faces
StreamReader sourceFile = new StreamReader(filename);
string line;
do
{
line = sourceFile.ReadLine();
if (line == null)
{
break;
}
if (line.Contains("#"))
{
// comment
}
else if (line.Contains("mtllib"))
{
// material
// Read material properties from file
OBJFileReader.readMaterialFile(line, ref material);
}
else if (line.Contains("usemtl"))
{
// material, what material to use.
}
else if (line.Contains("vn"))
{
normals.Add(readNormal(line));
}
else if (line.Contains("vt"))
{
texCoords.Add(readVector2(line));
}
else if (line.Contains("v"))
{
positions.Add(readPos(line));
}
else if (line.Contains("f"))
{
OBJFileReader.readFaces(line, ref faces);
}
} while (line != null);
sourceFile.Close();
}
