public RayEngineScene3(SceneGeometryInfo geometry, IMaterialProvider materials, ILight[] lights = null) {
this.MaterialProvider = materials;
this.SceneGeometry = geometry;
Triangles = new List<TriangleDataInfo>();
Meshes = new List<ITriangleMesh>();
meshTriangleMap = new Dictionary<int, ITriangleMesh>();
this.Lights = lights;
this.BuildSceneData();
}
public SceneGeometryInfo Load( string fileName, params string[] additionalFiles ) {
var result = new SceneGeometryInfo();
var objs = new List<GeometryInfo>();
string lastCommand = "f";
FloatStore vb = null;
FloatStore vt = null;
FloatStore vn = null;
IntStore ib = null;
IntStore tib = null;
IntStore nib = null;
int oCount = 0;
var buffer = new Queue<string>();
using( var reader = new StreamReader(fileName) ) {
while( !reader.EndOfStream ) {
var s = reader.ReadLine();
if( String.IsNullOrEmpty(s) )
continue;
buffer.Enqueue(s);
}
}
while( buffer.Count > 0 ) {
string line = buffer.Dequeue();
if( string.IsNullOrEmpty(line) )
continue;
if( line.StartsWith("#") )
continue;
//try
//{
var tag = line.Contains(" ") ? line.Substring(0, line.IndexOf(" ")).Trim() : line.Trim();
switch( tag ) {
case "vt":
if( vt == null ) {
vt = objs[oCount - 1].TextureData;
}
objs[oCount - 1].UseTextures = true;
vt.AddRange(ObjHandler.Process_VT(line));
break;
case "vn":
if( vn == null ) {
vn = objs[oCount - 1].NormalData;
}
objs[oCount - 1].UseNormals = true;
vn.AddRange(ObjHandler.Process_VN(line));
break;
case "v":
if( lastCommand.Equals("f") ) {
var newObj = new GeometryInfo();
objs.Add(newObj);
//vb = newObj.VertexBuffer;
vn = null;
ib = null;
tib = null;
nib = null;
oCount++;
}
if( vb == null ) {
vb = objs[oCount - 1].VertexData;
}
vb.AddRange(ObjHandler.Process_V(line));
break;
case "f":
if( ib == null ) {
ib = objs[oCount - 1].IndexData;
}
int[] tibs, nibs;
var ibValues = ObjHandler.Process_F(line, out nibs, out tibs);
bool TexInd = false;
bool NormInd = false;
ib.AddRange(ibValues);
if( objs[oCount - 1].UseTextures && objs[oCount - 1].UseNormals ) {
NormInd = true;
TexInd = true;
}
else if( objs[oCount - 1].UseTextures && !objs[oCount - 1].UseNormals ) {
TexInd = true;
tibs = nibs;
}
else
if( !objs[oCount - 1].UseTextures && objs[oCount - 1].UseNormals ) {
NormInd = true;
}
if( TexInd ) {
if( tib == null ) {
objs[oCount - 1].TextureIndexData = new IntStore();
tib = objs[oCount - 1].TextureIndexData;
}
if( tibs != null ) {
tib.AddRange(tibs);
}
else {
tib.AddRange(nibs);
}
}
if( NormInd ) {
if( nib == null ) {
objs[oCount - 1].NormalIndexData = new IntStore();
nib = objs[oCount - 1].NormalIndexData;
}
nib.AddRange(nibs);
}
break;
case "g":
if( lastCommand.Equals("f") ) {
var newObj = new GeometryInfo();
objs.Add(newObj);
//vb = null;
vn = null;
ib = null;
tib = null;
nib = null;
oCount++;
}
string name = string.Empty;
ObjHandler.Process_G(line, out name);
objs[oCount - 1].Name = name;
break;
case "usemtl":
string mtl = string.Empty;
ObjHandler.Process_Mtl(line, out mtl);
objs[oCount - 1].MaterialName = mtl.ToLowerInvariant();
break;
default:
continue;
}
lastCommand = tag;
//}
//catch (Exception ex)
//{
// throw ex;
// //continue;
//}
}
result.Vertices = vb.TodVectorList().ToArray();
result.TexCoords = vt.TodVectorList().ToArray();
result.Normals = vn.TodVectorList().ToArray();
objs.ForEach(ob => {
ob.IndexData.Iterator(Math.Abs);
if( ob.TextureIndexData != null )
ob.TextureIndexData.Iterator(Math.Abs);
if( ob.NormalIndexData != null )
ob.NormalIndexData.Iterator(Math.Abs);
ob.Name = String.IsNullOrEmpty(ob.Name) ? Guid.NewGuid().ToString() : ob.Name;
});
return result;
}
public BaseRayEngine() {
frameParsers = new Dictionary<Type, Action<IFrameElement>>();
frameParsers.Add(typeof(FrameCamera), cameraItem =>
{
var item = (FrameCamera)cameraItem;
Camera = new BasicPerspectiveCamera(item.Position, item.Target, item.Up, width, height) { Fov = 60 };
});
frameParsers.Add(typeof(FrameObjFileReference), item =>
{
var objFileRef = (FrameObjFileReference)item;
var loader = new GlobalIndexObjLoader();
scene = loader.Load(objFileRef.ObjFilePath);
var mload = new MaterialLoader();
mats = mload.LoadMaterials(objFileRef.MtlFilePath);
foreach (var materialInfo in mats) {
if (materialInfo.Name.ToLower().Contains("glass") ||
materialInfo.Name.ToLower().Contains("wire_134006006")
) {
materialInfo.Kt = materialInfo.Kd;
materialInfo.Kd = RgbSpectrum.ZeroSpectrum();
materialInfo.MediumInfo = Glass;
}
if (materialInfo.Name.ToLower().Contains("metal")) {
materialInfo.Kr = materialInfo.Kd;
}
}
});
frameParsers.Add(typeof(Frame3DsFileReference), item =>
{
var sceneFileRef = (Frame3DsFileReference)item;
var loader = new SceneLoader();
scene = loader.Load(sceneFileRef.FilePath);
mats = loader.LoadMaterials(sceneFileRef.FilePath);
foreach (var materialInfo in mats) {
if (materialInfo.Name.ToLower().Contains("glass") ||
materialInfo.Name.ToLower().Contains("wire_134006006")
) {
materialInfo.Kt = materialInfo.Kd;
materialInfo.Kd = RgbSpectrum.ZeroSpectrum();
materialInfo.MediumInfo = Glass;
}
if (materialInfo.Name.ToLower().Contains("metal")) {
materialInfo.Kr = materialInfo.Kd;
}
}
if (scene.Cameras != null && scene.Cameras.Any()) {
Camera = new BasicPerspectiveCamera(scene.Cameras[0].Position, scene.Cameras[0].Direction, scene.Cameras[0].Up, width, height) { Fov = scene.Cameras[0].Fov };
}
});
frameParsers.Add(typeof(FrameLightsource), item =>
{
if (lights == null) {
lights = new List<ILight>();
}
var lightsource = (FrameLightsource)item;
switch (lightsource.LightType) {
case LightSourceTypes.Point:
lights.Add(new PointLight(lightsource));
break;
case LightSourceTypes.EnvironmentMap:
lights.Add(envMap = new InfiniteLight(lightsource));
break;
case LightSourceTypes.Area:
//if (AreaLightAsMeshLight)
lights.Add(new MeshLight(lightsource));
break;
}
});
}