protected static DataStructures.Models.Mesh AddMesh(DataStructures.Models.Model sledgeModel, Assimp.Mesh assimpMesh, Matrix4x4 selfMatrix)
{
var sledgeMesh = new DataStructures.Models.Mesh(0);
List <MeshVertex> vertices = new List <MeshVertex>();
for (int i = 0; i < assimpMesh.VertexCount; i++)
{
var assimpVertex = assimpMesh.Vertices[i];
assimpVertex = selfMatrix * assimpVertex;
var assimpNormal = assimpMesh.Normals[i];
assimpNormal = selfMatrix * assimpNormal;
var assimpUv = assimpMesh.TextureCoordinateChannels[0][i];
vertices.Add(new MeshVertex(new CoordinateF(assimpVertex.X, -assimpVertex.Z, assimpVertex.Y),
new CoordinateF(assimpNormal.X, -assimpNormal.Z, assimpNormal.Y),
sledgeModel.Bones[0], assimpUv.X, -assimpUv.Y));
}
foreach (var face in assimpMesh.Faces)
{
var triInds = face.Indices;
for (var i = 1; i < triInds.Count - 1; i++)
{
sledgeMesh.Vertices.Add(new MeshVertex(vertices[triInds[0]].Location, vertices[triInds[0]].Normal, vertices[triInds[0]].BoneWeightings, vertices[triInds[0]].TextureU, vertices[triInds[0]].TextureV));
sledgeMesh.Vertices.Add(new MeshVertex(vertices[triInds[i + 1]].Location, vertices[triInds[i + 1]].Normal, vertices[triInds[i + 1]].BoneWeightings, vertices[triInds[i + 1]].TextureU, vertices[triInds[i + 1]].TextureV));
sledgeMesh.Vertices.Add(new MeshVertex(vertices[triInds[i]].Location, vertices[triInds[i]].Normal, vertices[triInds[i]].BoneWeightings, vertices[triInds[i]].TextureU, vertices[triInds[i]].TextureV));
}
}
return(sledgeMesh);
}
protected static void AddNode(Scene scene, Node node, DataStructures.Models.Model model, DataStructures.Models.Texture tex, Matrix4x4 parentMatrix)
{
Matrix4x4 selfMatrix = node.Transform * parentMatrix;
foreach (var meshIndex in node.MeshIndices)
{
DataStructures.Models.Mesh sledgeMesh = AddMesh(model, scene.Meshes[meshIndex], selfMatrix);
foreach (var v in sledgeMesh.Vertices)
{
v.TextureU *= tex.Width;
v.TextureV *= tex.Height;
}
model.AddMesh("mesh", 0, sledgeMesh);
}
foreach (var subNode in node.Children)
{
AddNode(scene, subNode, model, tex, selfMatrix);
}
}
