public void Load(Stream stream)
{
Header = new MDL_Parser(stream);
foreach (var tex in Header.Textures)
{
Textures.Add(new Texture(tex)
{
Name = $"Texture{Textures.Count}"
});
}
ToGeneric().Skeleton.PreviewScale = 3;
}
public void FromGeneric(STGenericScene scene)
{
var model = scene.Models[0];
bool useTriangeStrips = false;
MDL_Parser mdl = new MDL_Parser();
mdl.FileHeader = new MDL_Parser.Header();
mdl.Meshes = new List <MDL_Parser.Mesh>();
List <Node> nodes = new List <Node>();
List <Matrix4> matrices = new List <Matrix4>();
List <Material> materials = new List <Material>();
List <TextureHeader> textures = new List <TextureHeader>();
List <Sampler> samplers = new List <Sampler>();
List <Vector3> positions = new List <Vector3>();
List <Vector3> normals = new List <Vector3>();
List <Vector2> texCoords = new List <Vector2>();
List <Vector4> colors = new List <Vector4>();
List <Shape> shapes = new List <Shape>();
List <ShapePacket> packets = new List <ShapePacket>();
List <DrawElement> elements = new List <DrawElement>();
List <MDL_Parser.Weight> weights = new List <MDL_Parser.Weight>();
model.Textures = model.Textures.OrderBy(x => GetTextureIndex(x.Name)).ToList();
model.OrderBones(model.Skeleton.Bones.OrderBy(x => GetBoneIndex(x.Name)).ToList());
foreach (var texture in model.Textures)
{
textures.Add(new TextureHeader()
{
Width = (ushort)texture.Width,
Height = (ushort)texture.Height,
Format = Decode_Gamecube.TextureFormats.CMPR,
ImageData = Decode_Gamecube.EncodeFromBitmap(texture.GetBitmap(),
Decode_Gamecube.TextureFormats.CMPR).Item1,
});
}
//If sampler list isn't replaced in json, force a new one
if (Header.Samplers.Length == 0)
{
//Create samplers to map textures to materials
foreach (var texture in model.Textures)
{
samplers.Add(new Sampler()
{
WrapModeU = 2,
WrapModeV = 2,
MagFilter = 0,
MinFilter = 0,
TextureIndex = (ushort)model.Textures.IndexOf(texture),
});
}
}
else
{
samplers = Header.Samplers.ToList();
}
//Create a root node if no bones are present
if (model.Skeleton.Bones.Count == 0)
{
nodes.Add(new Node()
{
ChildIndex = 1,
SiblingIndex = 0,
ShapeCount = (ushort)model.Meshes.Count,
ShapeIndex = 0,
});
}
//Create a node graph from a skeleton
foreach (var bone in model.Skeleton.Bones.Where(x => x.ParentIndex == -1))
{
CreateNodeGraph(nodes, bone);
}
//Set node transforms
model.Skeleton.Reset();
foreach (var bone in model.Skeleton.Bones)
{
Matrix4 transform = bone.Transform;
transform.Transpose();
transform.Invert();
matrices.Add(transform);
}
ushort shapeIndex = 0;
//Adjust the node indices
for (int i = 0; i < nodes.Count; i++)
{
nodes[i].NodeIndex = (ushort)i;
if (i == 0)
{
//Store the total amount of drawn elements in nodes
nodes[i].ShapeCount = (ushort)model.Meshes.Count;
shapeIndex += (ushort)model.Meshes.Count;
}
foreach (var mesh in model.Meshes)
{
for (int v = 0; v < mesh.Vertices.Count; v++)
{
if (mesh.Vertices[v].BoneIndices.Contains(i))
{
nodes[i].ShapeIndex = shapeIndex;
}
}
}
}
List <STGenericMaterial> genericMats = model.GetMaterials();
genericMats = genericMats.OrderBy(x => GetMaterialIndex(x.Name)).ToList();
//Create a new material and assign the first tev stage mapped textures
foreach (var material in genericMats)
{
var mat = new Material();
if (material.TextureMaps.Count > 0)
{
string name = material.TextureMaps[0].Name;
int index = model.Textures.FindIndex(x => x.Name == name);
int samplerIndex = samplers.FindIndex(x => x.TextureIndex == index);
if (samplerIndex != -1)
{
mat.TevStages[0].Unknown = (ushort)0;
mat.TevStages[0].SamplerIndex = (ushort)samplerIndex;
}
}
materials.Add(mat);
}
if (genericMats.Count == 0)
{
var mat = new Material();
materials.Add(mat);
}
//Create shapes and draw elements
int packetIndex = 0;
mdl.FileHeader.FaceCount = 0;
foreach (var mesh in model.Meshes)
{
int materialIndex = 0;
if (mesh.PolygonGroups[0].Material != null)
{
materialIndex = genericMats.IndexOf(mesh.PolygonGroups[0].Material);
}
List <ushort> boneIndices = new List <ushort>();
//Create packets to store our vertex data
//Packets will split based on joint indices
//A single packet can hold up to 10 indices
//There will be either rigid indices (directly rigs to joints)
//Or smooth indices (rigs to weight table. Indexes higher than joint count)
List <ShapePacket> shapePackets = new List <ShapePacket>();
ShapePacket packet = new ShapePacket();
shapePackets.Add(packet);
int vindex = 0;
mdl.FileHeader.FaceCount += (ushort)(mesh.PolygonGroups.Sum(x => x.Faces.Count) / 3);
var group = mesh.PolygonGroups[0];
for (int v = 0; v < group.Faces.Count; v += 3)
{
//Check the current triangle and find the max amount of indices currently in use.
int maxBoneIndices = boneIndices.Count;
for (int i = 0; i < 3; i++)
{
var vertex = mesh.Vertices[(int)group.Faces[v + (2 - i)]];
for (int j = 0; j < vertex.BoneIndices.Count; j++)
{
int index = vertex.BoneIndices[j];
if (!boneIndices.Contains((ushort)index) || vertex.BoneIndices.Count > 1)
{
maxBoneIndices++;
}
}
}
//Reset the bone indices depending on how many are used currently
if (maxBoneIndices > 9)
{
//Create a new packet to store additional indices
boneIndices = new List <ushort>();
packet = new ShapePacket();
shapePackets.Add(packet);
}
ShapePacket.DrawList drawList = new ShapePacket.DrawList();
drawList.OpCode = (byte)GXOpCodes.DRAW_TRIANGLES;
packet.DrawLists.Add(drawList);
for (int i = 0; i < 3; i++)
{
ShapePacket.VertexGroup vertexGroup = new ShapePacket.VertexGroup();
drawList.Vertices.Add(vertexGroup);
var vertex = mesh.Vertices[(int)group.Faces[v + (2 - i)]];
//Round the values
Vector3 pos = vertex.Position;
Vector3 nrm = vertex.Normal;
if (vertex.TexCoords.Length > 0)
{
if (!texCoords.Contains(vertex.TexCoords[0]))
{
texCoords.Add(vertex.TexCoords[0]);
}
vertexGroup.TexCoordIndex = (short)texCoords.IndexOf(vertex.TexCoords[0]);
}
//Note the bone indices list will store the real index
//The vertex data will just index the bone indices list instead
if (vertex.BoneIndices.Count == 1)
{
ushort index = (ushort)vertex.BoneIndices[0];
if (!boneIndices.Contains(index))
{
boneIndices.Add(index);
}
//Index our rigid skinning index from the index list of the current packet
vertexGroup.MatrixIndex = (sbyte)(boneIndices.IndexOf(index) * 3);
vertexGroup.Tex0MatrixIndex = (sbyte)(boneIndices.IndexOf(index) * 3);
vertexGroup.Tex1MatrixIndex = (sbyte)(boneIndices.IndexOf(index) * 3);
//Rigid indices require vertices to be inversed by the matrix
var matrix = matrices[index];
matrix.Transpose();
pos = Vector3.TransformPosition(pos, matrix);
nrm = Vector3.TransformNormal(nrm, matrix);
}
else if (vertex.BoneIndices.Count > 1)
{
vertex.SortBoneIndices();
//Create a weight entry used to index our weight table
var weightEntry = new MDL_Parser.Weight();
for (int j = 0; j < vertex.BoneWeights.Count; j++)
{
weightEntry.Weights.Add(vertex.BoneWeights[j]);
}
for (int j = 0; j < vertex.BoneIndices.Count; j++)
{
weightEntry.JointIndices.Add(vertex.BoneIndices[j]);
}
MDL_Parser.Weight existingWeight = null;
for (int w = 0; w < weights.Count; w++)
{
int matchedWeights = 0;
for (int j = 0; j < vertex.BoneIndices.Count; j++)
{
int jointIndex = weights[w].JointIndices.IndexOf(vertex.BoneIndices[j]);
if (jointIndex == -1)
{
continue;
}
if (weights[w].Weights[jointIndex] == vertex.BoneWeights[j])
{
matchedWeights++;
}
}
if (matchedWeights == vertex.BoneIndices.Count)
{
existingWeight = weights[w];
}
}
//Find an existing weight table entry that matches
if (existingWeight == null)
{
existingWeight = weightEntry;
weights.Add(existingWeight);
}
//Index our weight table entry
//These indices shift by rigid index
ushort rigidIndex = (ushort)nodes.Count;
ushort index = (ushort)(weights.IndexOf(existingWeight) + rigidIndex);
if (!boneIndices.Contains(index))
{
boneIndices.Add(index);
}
//Index our smooth skinning index from the index list of the current packet
vertexGroup.MatrixIndex = (sbyte)(boneIndices.IndexOf(index) * 3);
vertexGroup.Tex0MatrixIndex = (sbyte)(boneIndices.IndexOf(index) * 3);
vertexGroup.Tex1MatrixIndex = (sbyte)(boneIndices.IndexOf(index) * 3);
}
else if (vertex.BoneIndices.Count == 0)
{
if (!boneIndices.Contains(0))
{
boneIndices.Add(0);
}
vertexGroup.MatrixIndex = 0;
vertexGroup.Tex0MatrixIndex = 0;
vertexGroup.Tex1MatrixIndex = 0;
}
if (!positions.Contains(pos))
{
positions.Add(pos);
}
if (!normals.Contains(nrm))
{
normals.Add(nrm);
}
vertexGroup.PositionIndex = (short)positions.IndexOf(pos);
vertexGroup.NormalIndex = (short)normals.IndexOf(nrm);
//Update the matrix indices
for (int j = 0; j < boneIndices.Count; j++)
{
packet.MatrixIndices[j] = boneIndices[j];
}
packet.MatrixIndicesCount = (ushort)boneIndices.Count;
vindex++;
}
}
elements.Add(new DrawElement()
{
ShapeIndex = (ushort)shapes.Count,
MaterialIndex = (ushort)materialIndex,
});
shapes.Add(new Shape()
{
PacketBeginIndex = (ushort)packetIndex,
PacketCount = (ushort)shapePackets.Count,
});
packetIndex += shapePackets.Count;
packets.AddRange(shapePackets);
}
foreach (var packet in packets)
{
packet.Data = packet.CreateDrawList(packet.DrawLists, false,
normals.Count > 0, texCoords.Count > 0, colors.Count > 0);
packet.DataSize = (uint)packet.Data.Length;
}
var lodPackets = new List <ShapePacket>();
foreach (var packet in packets)
{
var lodPacket = new ShapePacket();
lodPacket.MatrixIndices = packet.MatrixIndices;
lodPacket.MatrixIndicesCount = packet.MatrixIndicesCount;
lodPacket.Data = packet.CreateDrawList(packet.DrawLists, true,
normals.Count > 0, texCoords.Count > 0, colors.Count > 0);
lodPacket.DataSize = (uint)lodPacket.Data.Length;
lodPackets.Add(lodPacket);
}
packets.AddRange(lodPackets);
mdl.Matrix4Table = new Matrix4[matrices.Count];
for (int i = 0; i < matrices.Count; i++)
{
mdl.Matrix4Table[i] = matrices[i];
}
mdl.Materials = materials.ToArray();
mdl.Nodes = nodes.ToArray();
mdl.Samplers = samplers.ToArray();
mdl.Colors = colors.ToArray();
mdl.Positions = positions.ToArray();
mdl.TexCoords = texCoords.ToArray();
mdl.Normals = normals.ToArray();
mdl.DrawElements = elements.ToArray();
mdl.Shapes = shapes.ToArray();
mdl.ShapePackets = packets.ToArray();
mdl.Weights = weights.ToArray();
mdl.Textures = textures.ToArray();
mdl.LODPositions = new Vector3[0];
mdl.LODNormals = new Vector3[0];
Header = mdl;
}