void ProcessTokens(string[] tokens)
{
switch (tokens[0].ToLower())
{
case "o":
meshName = tokens[1];
break;
case "v":
coords.Add(ParseCoord(tokens));
break;
case "vt":
{
uvs.Add(ParseUVCoord(tokens));
break;
}
case "vn":
normals.Add(ParseCoord(tokens));
break;
case "g":
MakePrimFace();
break;
case "s":
break;
case "f":
int[] vertIndices = new int[3];
for (int vertexIndex = 1; vertexIndex <= 3; vertexIndex++)
{
string[] indices = tokens[vertexIndex].Split('/');
int positionIndex = int.Parse(indices[0],
CultureInfo.InvariantCulture) - 1;
int texCoordIndex = -1;
int normalIndex = -1;
if (indices.Length > 1)
{
if (int.TryParse(indices[1], NumberStyles.Integer, CultureInfo.InvariantCulture, out texCoordIndex))
{
texCoordIndex--;
}
else
{
texCoordIndex = -1;
}
}
if (indices.Length > 2)
{
if (int.TryParse(indices[1], NumberStyles.Integer, CultureInfo.InvariantCulture, out normalIndex))
{
normalIndex--;
}
else
{
normalIndex = -1;
}
}
int hash = hashInts(positionIndex, texCoordIndex, normalIndex);
if (viewerVertexLookup.ContainsKey(hash))
{
vertIndices[vertexIndex - 1] = viewerVertexLookup[hash];
}
else
{
ViewerVertex vv = new ViewerVertex();
vv.v = coords[positionIndex];
if (normalIndex > -1)
{
vv.n = normals[normalIndex];
}
if (texCoordIndex > -1)
{
vv.uv = uvs[texCoordIndex];
}
faceVertices.Add(vv);
vertIndices[vertexIndex - 1] = viewerVertexLookup[hash] = faceVertices.Count - 1;
}
}
facePolygons.Add(new ViewerPolygon(vertIndices[0], vertIndices[1], vertIndices[2]));
break;
case "mtllib":
break;
case "usemtl":
break;
}
}
private void ProcessTokens(string[] tokens)
{
switch (tokens[0].ToLower())
{
case "o":
meshName = tokens[1];
break;
case "v":
coords.Add(ParseCoord(tokens));
break;
case "vt":
{
uvs.Add(ParseUVCoord(tokens));
break;
}
case "vn":
normals.Add(ParseCoord(tokens));
break;
case "g":
MakePrimFace();
break;
case "s":
break;
case "f":
int[] vertIndices = new int[3];
for (int vertexIndex = 1; vertexIndex <= 3; vertexIndex++)
{
string[] indices = tokens[vertexIndex].Split('/');
int positionIndex = int.Parse(indices[0],
CultureInfo.InvariantCulture) - 1;
int texCoordIndex = -1;
int normalIndex = -1;
if (indices.Length > 1)
{
if (int.TryParse(indices[1], System.Globalization.NumberStyles.Integer, CultureInfo.InvariantCulture, out texCoordIndex))
texCoordIndex--;
else texCoordIndex = -1;
}
if (indices.Length > 2)
{
if (int.TryParse(indices[1], System.Globalization.NumberStyles.Integer, CultureInfo.InvariantCulture, out normalIndex))
normalIndex--;
else normalIndex = -1;
}
int hash = hashInts(positionIndex, texCoordIndex, normalIndex);
if (viewerVertexLookup.ContainsKey(hash))
vertIndices[vertexIndex - 1] = viewerVertexLookup[hash];
else
{
ViewerVertex vv = new ViewerVertex();
vv.v = coords[positionIndex];
if (normalIndex > -1)
vv.n = normals[normalIndex];
if (texCoordIndex > -1)
vv.uv = uvs[texCoordIndex];
faceVertices.Add(vv);
vertIndices[vertexIndex - 1] = viewerVertexLookup[hash] = faceVertices.Count - 1;
}
}
facePolygons.Add(new ViewerPolygon(vertIndices[0], vertIndices[1], vertIndices[2]));
break;
case "mtllib":
break;
case "usemtl":
break;
default:
break;
}
}