/// <summary>
///
/// </summary>
/// <param name="model"></param>
/// <param name="filename"></param>
/// <param name="modelName"></param>
public static void DumpObjFile(this IObjFormat model, string filename, string modelName = null)
{
vec3[] positions = model.GetPositions();
vec2[] texCoords = model.GetTexCoords();
uint[] indexes = model.GetIndexes();
using (var stream = new System.IO.StreamWriter(filename)) {
stream.WriteLine(string.Format("# Generated by CSharpGL.IObjFormat {0}", DateTime.Now));
stream.WriteLine("# " + (modelName == null ? "" : modelName));
for (int i = 0; i < positions.Length; i++)
{
stream.WriteLine();
var pos = positions[i];
stream.Write(string.Format("v {0} {1} {2}", pos.x, pos.y, pos.z));
}
for (int i = 0; i < texCoords.Length; i++)
{
stream.WriteLine();
var texCoord = texCoords[i];
stream.Write(string.Format("vt {0} {1}", texCoord.x, texCoord.y));
}
for (int i = 0; i < indexes.Length; i += 3)
{
stream.WriteLine();
if (texCoords.Length > 0)
{
stream.Write(string.Format("f {0}/{0} {1}/{1} {2}/{2}", indexes[i + 0] + 1, indexes[i + 1] + 1, indexes[i + 2] + 1));
}
else
{
stream.Write(string.Format("f {0} {1} {2}", indexes[i + 0] + 1, indexes[i + 1] + 1, indexes[i + 2] + 1));
}
}
}
}
public ObjItem(IObjFormat model, vec3 position, vec3 color)
{
this.model = model;
this.position = position;
this.color = color;
}