public static List <Mesh3d> LoadSceneFromObj(string objfile, string mtlfile, float scale = 1.0f)
{
string[] lines = File.ReadAllLines(Media.Get(objfile));
var objs = ParseOBJString(lines);
var mtllib = LoadMaterialsFromMtl(Media.Get(mtlfile));
List <Mesh3d> meshes = new List <Mesh3d>();
Dictionary <string, GenericMaterial> texCache = new Dictionary <string, GenericMaterial>();
Dictionary <Vector3, GenericMaterial> colorCache = new Dictionary <Vector3, GenericMaterial>();
Dictionary <GenericMaterial, MaterialInfo> mInfos = new Dictionary <GenericMaterial, MaterialInfo>();
Dictionary <GenericMaterial, Object3dManager> linkCache = new Dictionary <GenericMaterial, Object3dManager>();
var colorPink = new GenericMaterial(Color.White);
foreach (var obj in objs)
{
Console.WriteLine("Loading " + obj.Name);
Console.WriteLine("GC MEMORY USED {0} MB", GC.GetTotalMemory(true) / 1024.0 / 1024);
var mat = mtllib.ContainsKey(obj.MaterialName) ? mtllib[obj.MaterialName] : new MaterialInfo();
GenericMaterial material = colorPink;
if (mat != null && mat.TextureName.Length > 0)
{
var m = new GenericMaterial();
m.SetDiffuseTexture(Path.GetFileName(mat.TextureName));
m.SpecularTexture = m.DiffuseTexture;
// m.NormalMapScale = 10;
material = m;
material.Name = obj.MaterialName;
mInfos[material] = mat;
// texCache.Add(mat.TextureName + mat.AlphaMask, material);
// material = colorPink;
}
else if (mat != null)
{
material = new GenericMaterial(mat.DiffuseColor);
mInfos[material] = mat;
}
else
{
material = colorPink;
mInfos[material] = mat;
}
for (int i = 0; i < obj.VBO.Count; i++)
{
obj.VBO[i].Position *= scale;
}
var o3di = new Object3dManager(obj.VBO);
o3di.Name = obj.Name;
// if(!linkCache.ContainsKey(material))
linkCache.Add(material, o3di);
// else
// linkCache[material].Add(o3di);
}
foreach (var kv in linkCache)
{
Object3dManager o3di = kv.Value;
// var trans = o3di.GetAverageTranslationFromZero();
// o3di.OriginToCenter();
//o3di.CorrectFacesByNormals();
// o3di.CorrectFacesByNormals();
var oi = new Object3dInfo(o3di.Vertices);
oi.Manager = o3di;
// GC.Collect();
Mesh3d mesh = Mesh3d.Create(oi, kv.Key);
//kv.Key.SpecularComponent = 1.0f - mInfos[kv.Key].SpecularStrength + 0.01f;
kv.Key.Roughness = mInfos[kv.Key].SpecularStrength;
kv.Key.DiffuseColor = mInfos[kv.Key].DiffuseColor;
kv.Key.SpecularColor = mInfos[kv.Key].SpecularColor;
// kv.Key.ReflectionStrength = 1.0f - (mInfos[kv.Key].SpecularStrength);
//kv.Key.DiffuseComponent = mInfos[kv.Key].DiffuseColor.GetBrightness() + 0.01f;
var kva = kv.Key;
if (!mInfos.ContainsKey(kva))
{
kva = mInfos.Keys.First();
}
if (mInfos[kva].BumpMapName.Length > 1)
{
((GenericMaterial)kv.Key).SetBumpTexture(mInfos[kv.Key].BumpMapName);
}
if (mInfos[kva].RoughnessMapName.Length > 1)
{
((GenericMaterial)kv.Key).SetRoughnessTexture(mInfos[kv.Key].RoughnessMapName);
}
if (mInfos[kva].NormapMapName.Length > 1)
{
((GenericMaterial)kv.Key).SetNormalsTexture(mInfos[kv.Key].NormapMapName);
}
if (mInfos[kva].TextureName.Length > 1)
{
((GenericMaterial)kv.Key).SetDiffuseTexture(mInfos[kv.Key].TextureName);
}
// mesh.SpecularComponent = kv.Key.SpecularStrength;
// mesh.GetInstance(0).Translate(trans);
// mesh.SetCollisionShape(o3di.GetConvexHull(mesh.Transformation.GetPosition(),
// 1.0f, 1.0f));
meshes.Add(mesh);
}
return(meshes);
}