private Material LoadMaterial(Assimp.Material mat)
{
var material = new Material();
if (mat.HasTextureAmbient)
{
var texture = LoadTexture(mat.TextureAmbient.FilePath);
if (texture != null)
{
material.AmbientTexture = texture;
}
}
else if (mat.HasColorAmbient)
{
material.AmbientColor = new Vector4(mat.ColorAmbient.R, mat.ColorAmbient.G, mat.ColorAmbient.B, mat.ColorAmbient.A);
}
if (mat.HasTextureDiffuse)
{
var texture = LoadTexture(mat.TextureDiffuse.FilePath);
if (texture != null)
{
material.DiffuseTexture = texture;
}
}
else if (mat.HasColorDiffuse)
{
material.DiffuseColor = new Vector4(mat.ColorDiffuse.R, mat.ColorDiffuse.G, mat.ColorDiffuse.B, mat.ColorDiffuse.A);
}
if (mat.HasTextureSpecular)
{
var texture = LoadTexture(mat.TextureSpecular.FilePath);
if (texture != null)
{
material.SpecularTexture = texture;
}
}
if (mat.HasColorSpecular)
{
material.SpecularColor = new Vector4(mat.ColorSpecular.R, mat.ColorSpecular.G, mat.ColorSpecular.B, mat.ColorSpecular.A);
}
return(material);
}
private Mesh LoadMesh(Assimp.Mesh mesh, Assimp.Scene scene)
{
var vertices = new List <Vertex>();
var indices = new List <uint>();
for (var i = 0; i < mesh.Vertices.Count; i++)
{
var vert = new Vertex
{
Position = new Vector3(mesh.Vertices[i].X, mesh.Vertices[i].Y, mesh.Vertices[i].Z),
Normal = new Vector3(mesh.Normals[i].X, mesh.Normals[i].Y, mesh.Normals[i].Z)
};
if (mesh.HasTextureCoords(0))
{
var texCoords = new Vector2(mesh.TextureCoordinateChannels[0][i].X,
mesh.TextureCoordinateChannels[0][i].Y);
vert.TexCoords = texCoords;
}
else
{
vert.TexCoords = new Vector2(0.0f);
}
vertices.Add(vert);
}
foreach (var face in mesh.Faces)
{
foreach (var i in face.Indices)
{
indices.Add((uint)i);
}
}
Material material = null;
if (mesh.MaterialIndex >= 0)
{
material = LoadMaterial(scene.Materials[mesh.MaterialIndex]);
}
_logger.Info("Loaded mesh: " + mesh.Name);
return(new Mesh(vertices, indices, material));
}