/// <summary>
/// Initializes a new instance of the <see cref="Model"/> class.
/// </summary>
/// <param name="availableAnimations">
/// The available animations.
/// </param>
/// <param name="rootBone">
/// The root bone, or null if there's no skeletal information.
/// </param>
/// <param name="vertexes">
/// The vertexes associated with this model.
/// </param>
/// <param name="indices">
/// The indices associated with the model.
/// </param>
public Model(
IModelRenderConfiguration[] modelRenderConfigurations,
IRenderBatcher renderBatcher,
string name,
IAnimationCollection availableAnimations,
IMaterial material,
IModelBone rootBone,
ModelVertex[] vertexes,
int[] indices)
{
Name = name;
AvailableAnimations = availableAnimations;
Root = rootBone;
Vertexes = vertexes;
Indices = indices;
Material = material;
_cachedVertexBuffers = new Dictionary<object, VertexBuffer>();
_modelRenderConfigurations = modelRenderConfigurations;
_renderBatcher = renderBatcher;
if (Root != null)
{
_flattenedBones = Root.Flatten();
Bones = _flattenedBones.ToDictionary(k => k.Name, v => v);
}
}
/// <summary>
/// Serializes an array of model vertexes to a binary stream.
/// </summary>
/// <param name="writer">
/// The binary writer to which the model vertexes will be serialized.
/// </param>
/// <param name="vertexes">
/// The vertexes to serialize.
/// </param>
private void SerializeVertexes(BinaryWriter writer, ModelVertex[] vertexes)
{
writer.Write(vertexes.Length);
for (var i = 0; i < vertexes.Length; i++)
{
var v = vertexes[i];
if (v.Position != null)
{
writer.Write(true);
this.SerializeVector3(writer, v.Position.Value);
}
else
{
writer.Write(false);
}
if (v.Normal != null)
{
writer.Write(true);
this.SerializeVector3(writer, v.Normal.Value);
}
else
{
writer.Write(false);
}
if (v.Tangent != null && v.BiTangent != null)
{
writer.Write(true);
this.SerializeVector3(writer, v.Tangent.Value);
this.SerializeVector3(writer, v.BiTangent.Value);
}
else
{
writer.Write(false);
}
writer.Write(v.Colors.Length);
for (var c = 0; c < v.Colors.Length; c++)
{
this.SerializeColor(writer, v.Colors[c]);
}
writer.Write(v.TexCoordsUV.Length);
for (var c = 0; c < v.TexCoordsUV.Length; c++)
{
this.SerializeVector2(writer, v.TexCoordsUV[c]);
}
writer.Write(v.TexCoordsUVW.Length);
for (var c = 0; c < v.TexCoordsUVW.Length; c++)
{
this.SerializeVector3(writer, v.TexCoordsUVW[c]);
}
if (v.BoneIndices != null)
{
writer.Write(true);
this.SerializeVector4(writer, v.BoneIndices.Value.ToVector4());
}
else
{
writer.Write(false);
}
if (v.BoneWeights != null)
{
writer.Write(true);
this.SerializeVector4(writer, v.BoneWeights.Value);
}
else
{
writer.Write(false);
}
}
}
/// <summary>
/// Load an FBX file from a file on disk.
/// </summary>
/// <param name="filename">
/// The filename of the FBX file to load.
/// </param>
/// <param name="additionalAnimationFiles">
/// A dictionary mapping of animation names to filenames for additional FBX files to load.
/// </param>
/// <param name="options">Additional options for the import.</param>
/// <returns>
/// The loaded <see cref="IModel"/>.
/// </returns>
public IModel Load(string filename, string name, Dictionary <string, string> additionalAnimationFiles, string[] options)
{
this.LoadAssimpLibrary();
// Import the scene via AssImp.
var importer = new AssimpContext();
PostProcessSteps ProcessFlags = 0;
if (options == null)
{
ProcessFlags |= PostProcessSteps.FlipUVs | PostProcessSteps.Triangulate |
PostProcessSteps.FlipWindingOrder;
}
else
{
foreach (var v in options)
{
PostProcessSteps flag;
if (Enum.TryParse(v, true, out flag))
{
ProcessFlags |= flag;
Console.Write("(on: " + flag + ") ");
}
}
}
var scene = importer.ImportFile(filename, ProcessFlags);
ModelVertex[] vertexes;
int[] indices;
IModelBone boneHierarchy;
Material material = null;
if (scene.MeshCount >= 1)
{
var boneWeightingMap = this.BuildBoneWeightingMap(scene);
var staticTransformMap = this.BuildStaticTransformMap(scene);
if (options?.Contains("!NoBoneHierarchy") ?? false)
{
boneHierarchy = null;
}
else
{
boneHierarchy = this.ImportBoneHierarchy(scene.RootNode, scene.Meshes[0]);
}
vertexes = this.ImportVertexes(scene, boneWeightingMap, staticTransformMap);
indices = this.ImportIndices(scene);
}
else
{
boneHierarchy = this.ImportBoneHierarchy(scene.RootNode, null);
vertexes = new ModelVertex[0];
indices = new int[0];
}
// If the scene has materials associated with it, and the mesh has
// a material associated with it, read in the material information.
if (scene.MeshCount >= 1 && scene.MaterialCount > scene.Meshes[0].MaterialIndex)
{
var assimpMaterial = scene.Materials[scene.Meshes[0].MaterialIndex];
material = ConvertMaterial(assimpMaterial);
}
// Create the list of animations, including the null animation.
var animations = new List <IAnimation>();
// Import the basic animation.
if (scene.AnimationCount > 0)
{
animations.AddRange(
scene.Animations.Select(
assimpAnimation => this.ImportAnimation(assimpAnimation.Name, assimpAnimation)));
}
// For each additional animation file, import that and add the animation to the existing scene.
animations.AddRange(
from kv in additionalAnimationFiles
let animationImporter = new AssimpContext()
let additionalScene = animationImporter.ImportFile(kv.Value, ProcessFlags)
where additionalScene.AnimationCount == 1
select this.ImportAnimation(kv.Key, additionalScene.Animations[0]));
// Return the resulting model.
return(new Model(
_modelRenderConfigurations,
_renderBatcher,
name,
new AnimationCollection(animations),
material,
boneHierarchy,
vertexes,
indices));
}
/// <summary>
/// Serializes an array of model vertexes to a binary stream.
/// </summary>
/// <param name="writer">
/// The binary writer to which the model vertexes will be serialized.
/// </param>
/// <param name="vertexes">
/// The vertexes to serialize.
/// </param>
private void SerializeVertexes(BinaryWriter writer, ModelVertex[] vertexes)
{
writer.Write(vertexes.Length);
for (var i = 0; i < vertexes.Length; i++)
{
this.SerializeVector3(writer, vertexes[i].Position ?? Vector3.Zero);
this.SerializeVector3(writer, vertexes[i].Normal ?? Vector3.Zero);
this.SerializeVector2(writer, vertexes[i].TexCoordsUV[0]);
this.SerializeVector4(writer, vertexes[i].BoneWeights ?? Vector4.Zero);
this.SerializeVector4(writer, (vertexes[i].BoneIndices ?? new Byte4()).ToVector4());
}
}
/// <summary>
/// Load an FBX file from a file on disk.
/// </summary>
/// <param name="filename">
/// The filename of the FBX file to load.
/// </param>
/// <param name="additionalAnimationFiles">
/// A dictionary mapping of animation names to filenames for additional FBX files to load.
/// </param>
/// <param name="options">Additional options for the import.</param>
/// <returns>
/// The loaded <see cref="IModel"/>.
/// </returns>
public IModel Load(string filename, string name, Dictionary<string, string> additionalAnimationFiles, string[] options)
{
this.LoadAssimpLibrary();
// Import the scene via AssImp.
var importer = new AssimpContext();
PostProcessSteps ProcessFlags = 0;
if (options == null)
{
ProcessFlags |= PostProcessSteps.FlipUVs | PostProcessSteps.Triangulate |
PostProcessSteps.FlipWindingOrder;
}
else
{
foreach (var v in options)
{
PostProcessSteps flag;
if (Enum.TryParse(v, true, out flag))
{
ProcessFlags |= flag;
Console.Write("(on: " + flag + ") ");
}
}
}
var scene = importer.ImportFile(filename, ProcessFlags);
ModelVertex[] vertexes;
int[] indices;
IModelBone boneHierarchy;
Material material = null;
if (scene.MeshCount >= 1)
{
var boneWeightingMap = this.BuildBoneWeightingMap(scene);
var staticTransformMap = this.BuildStaticTransformMap(scene);
if (options?.Contains("!NoBoneHierarchy") ?? false)
{
boneHierarchy = null;
}
else
{
boneHierarchy = this.ImportBoneHierarchy(scene.RootNode, scene.Meshes[0]);
}
vertexes = this.ImportVertexes(scene, boneWeightingMap, staticTransformMap);
indices = this.ImportIndices(scene);
}
else
{
boneHierarchy = this.ImportBoneHierarchy(scene.RootNode, null);
vertexes = new ModelVertex[0];
indices = new int[0];
}
// If the scene has materials associated with it, and the mesh has
// a material associated with it, read in the material information.
if (scene.MeshCount >= 1 && scene.MaterialCount > scene.Meshes[0].MaterialIndex)
{
var assimpMaterial = scene.Materials[scene.Meshes[0].MaterialIndex];
material = ConvertMaterial(assimpMaterial);
}
// Create the list of animations, including the null animation.
var animations = new List<IAnimation>();
// Import the basic animation.
if (scene.AnimationCount > 0)
{
animations.AddRange(
scene.Animations.Select(
assimpAnimation => this.ImportAnimation(assimpAnimation.Name, assimpAnimation)));
}
// For each additional animation file, import that and add the animation to the existing scene.
animations.AddRange(
from kv in additionalAnimationFiles
let animationImporter = new AssimpContext()
let additionalScene = animationImporter.ImportFile(kv.Value, ProcessFlags)
where additionalScene.AnimationCount == 1
select this.ImportAnimation(kv.Key, additionalScene.Animations[0]));
// Return the resulting model.
return new Model(
_modelRenderConfigurations,
_renderBatcher,
name,
new AnimationCollection(animations),
material,
boneHierarchy,
vertexes,
indices);
}
