public StudioModel(string name, uint crc, StudioFile studioFile)
//TODO: figure out if models have a preset size
: base(name, crc, Vector3.Zero, Vector3.Zero)
{
StudioFile = studioFile ?? throw new ArgumentNullException(nameof(studioFile));
}
public unsafe Matrix4x4[] SetUpBones(StudioFile studioFile, double currentTime, uint sequenceIndex, float lastTime, float frame, float frameRate, in BoneData boneData)
private static SubModelData InternalCreateSubModel(StudioFile studioFile, BodyModel subModel, List <StudioVertex> vertices, List <uint> indices)
{
var meshes = new List <MeshData>(subModel.Meshes.Count);
//Add all vertices to the list
foreach (var mesh in subModel.Meshes)
{
//Use the first skin family for reference
//The compiler also uses this to calculate the s and t values
var texture = studioFile.Textures[studioFile.Skins[0][mesh.Skin]];
var firstIndex = indices.Count;
var i = 0;
for (int command = mesh.TriangleCommands[i]; command != 0; command = mesh.TriangleCommands[i])
{
++i;
//Commands come in sets of 4 values:
//Vertex index
//Normal index, also chrome index for chrome textures
//Texture s coord
//Texture t coord
//Negative values are fans, positive values are strips
//TODO: handle chrome
var isFan = command < 0;
if (isFan)
{
command = -command;
}
var firstVertex = vertices.Count;
for (var verticesLeft = command; verticesLeft > 0; --verticesLeft, i += 4)
{
var vertexIndex = mesh.TriangleCommands[i];
var normalIndex = mesh.TriangleCommands[i + 1];
var sCoord = mesh.TriangleCommands[i + 2];
var tCoord = mesh.TriangleCommands[i + 3];
vertices.Add(new StudioVertex
{
WorldTexture = new WorldTextureCoordinate
{
Vertex = subModel.Vertices[vertexIndex].Vertex,
Texture = new Vector2((float)(sCoord / (double)texture.Width), (float)(tCoord / (double)texture.Height))
},
Normal = subModel.Normals[normalIndex].Normal,
VertexBoneIndex = subModel.Vertices[vertexIndex].Bone,
NormalBoneIndex = subModel.Normals[normalIndex].Bone,
});
}
var trianglesToAdd = command - 2;
if (isFan)
{
for (var triangle = 0; triangle < trianglesToAdd; ++triangle)
{
indices.Add((uint)firstVertex);
indices.Add((uint)(firstVertex + triangle + 1));
indices.Add((uint)(firstVertex + triangle + 2));
}
}
else
{
for (var triangle = 0; triangle < trianglesToAdd; ++triangle)
{
//Every other triangle is inverted because strips normally do that internally
if ((triangle % 2) == 0)
{
indices.Add((uint)firstVertex);
indices.Add((uint)(firstVertex + 1));
indices.Add((uint)(firstVertex + 2));
}
else
{
indices.Add((uint)(firstVertex + 2));
indices.Add((uint)(firstVertex + 1));
indices.Add((uint)firstVertex);
}
++firstVertex;
}
}
}
meshes.Add(new MeshData
{
Mesh = mesh,
StartIndex = (uint)firstIndex,
IndicesCount = (uint)(indices.Count - firstIndex)
});
}
return(new SubModelData
{
Meshes = meshes.ToArray()
});
}
