static void UpdateModel(FoamModel Model, int FrameIndex)
{
if (Model.Animations == null)
{
return;
}
//Matrix4x4 ParentRotMat = Matrix4x4.CreateFromYawPitchRoll(0, -Pi / 2, 0);
foreach (var Msh in Model.Meshes)
{
List <Vertex3> Verts = new List <Vertex3>();
if (Msh.BoneInformation == null)
{
continue;
}
foreach (var Index in Msh.Indices)
{
FoamVertex3 Vert = Msh.Vertices[Index];
FoamBoneInfo Info = Msh.BoneInformation[Index];
FoamBone Bone1 = Model.Bones[Info.Bone1];
// TODO: Weights
Matrix4x4 BindWorld = Bone1.BindMatrix;
Matrix4x4 WorldTrans = Model.CalcWorldTransform(0, FrameIndex, Info.Bone1);
Vector3 Pos = Vector3.Transform(Vert.Position, BindWorld * WorldTrans);
// TODO: Flip?
Verts.Add(new Vertex3(Pos, Vert.UV));
}
Mesh *RayMesh = ((Model)Msh.Userdata).meshes;
Raylib.UnloadMesh(*RayMesh);
*RayMesh = Raylib.GenMeshRaw(Verts.ToArray());
}
}
static FoamModel Load(string FileName, int MD3Frame = 0)
{
string Ext = Path.GetExtension(FileName).ToLower();
using (AssimpContext Importer = new AssimpContext()) {
Importer.SetConfig(new MD3HandleMultiPartConfig(false));
//Importer.SetConfig(new MD5NoAnimationAutoLoadConfig(true));
Importer.SetConfig(new VertexBoneWeightLimitConfig(4));
Importer.SetConfig(new MD3KeyFrameImportConfig(MD3Frame));
PostProcessSteps ProcessSteps = PostProcessSteps.Triangulate;
ProcessSteps |= PostProcessSteps.SplitLargeMeshes;
ProcessSteps |= PostProcessSteps.OptimizeMeshes;
ProcessSteps |= PostProcessSteps.LimitBoneWeights;
ProcessSteps |= PostProcessSteps.JoinIdenticalVertices;
ProcessSteps |= PostProcessSteps.ImproveCacheLocality;
ProcessSteps |= PostProcessSteps.GenerateNormals;
ProcessSteps |= PostProcessSteps.GenerateUVCoords;
//if (Ext != ".md3")
ProcessSteps |= PostProcessPreset.ConvertToLeftHanded;
Scene Sc = Importer.ImportFile(FileName, ProcessSteps);
List <FoamMaterial> MaterialList = new List <FoamMaterial>();
foreach (var Mat in Sc.Materials)
{
FoamMaterial FoamMat = new FoamMaterial(Mat.Name);
AddTextureIfExists(Mat.HasTextureDiffuse, ref FoamMat, Mat.TextureDiffuse, FoamTextureType.Diffuse);
AddTextureIfExists(Mat.HasTextureEmissive, ref FoamMat, Mat.TextureEmissive, FoamTextureType.Glow);
AddTextureIfExists(Mat.HasTextureNormal, ref FoamMat, Mat.TextureNormal, FoamTextureType.Normal);
AddTextureIfExists(Mat.HasTextureSpecular, ref FoamMat, Mat.TextureSpecular, FoamTextureType.Specular);
AddTextureIfExists(Mat.HasTextureReflection, ref FoamMat, Mat.TextureReflection, FoamTextureType.Reflection);
AddTextureIfExists(Mat.HasTextureHeight, ref FoamMat, Mat.TextureHeight, FoamTextureType.Height);
AddTextureIfExists(Mat.HasTextureLightMap, ref FoamMat, Mat.TextureLightMap, FoamTextureType.LightMap);
AddTextureIfExists(Mat.HasTextureDisplacement, ref FoamMat, Mat.TextureDisplacement, FoamTextureType.Displacement);
AddTextureIfExists(Mat.HasTextureAmbient, ref FoamMat, Mat.TextureAmbient, FoamTextureType.Ambient);
AddTextureIfExists(Mat.HasTextureOpacity, ref FoamMat, Mat.TextureOpacity, FoamTextureType.Opacity);
MaterialList.Add(FoamMat);
}
FoamBone[] Bones = new FoamBone[0];
List <FoamMesh> MeshList = new List <FoamMesh>();
foreach (var Msh in Sc.Meshes)
{
Vector3D[] Verts = Msh.Vertices.ToArray();
Vector3D[] UVs1 = Msh.TextureCoordinateChannels[0].ToArray();
Vector3D[] UVs2 = Msh.TextureCoordinateChannels[1].ToArray();
Vector3D[] Normals = Msh.Normals.ToArray();
Vector3D[] Tangents = Msh.Tangents.ToArray();
Color4D[] Colors = Msh.VertexColorChannels[0].ToArray();
string MeshName = Msh.Name;
int MaterialIndex = Msh.MaterialIndex;
FoamVertex3[] FoamVertices = new FoamVertex3[Verts.Length];
for (int i = 0; i < FoamVertices.Length; i++)
{
Vector2 UV1 = UVs1.Length != 0 ? new Vector2(UVs1[i].X, UVs1[i].Y) : Vector2.Zero;
Vector2 UV2 = UVs2.Length != 0 ? new Vector2(UVs2[i].X, UVs2[i].Y) : Vector2.Zero;
Vector3 Normal = Normals.Length != 0 ? new Vector3(Normals[i].X, Normals[i].Y, Normals[i].Z) : Vector3.Zero;
Vector3 Tangent = Tangents.Length != 0 ? new Vector3(Tangents[i].X, Tangents[i].Y, Tangents[i].Z) : Vector3.Zero;
FoamColor Color = Colors.Length != 0 ? new FoamColor(Colors[i].R, Colors[i].G, Colors[i].B, Colors[i].A) : FoamColor.White;
FoamVertex3 V = new FoamVertex3(new Vector3(Verts[i].X, Verts[i].Y, Verts[i].Z), UV1, UV2, Normal, Tangent, Color);
FoamVertices[i] = V;
}
bool CalculateTangents = Tangents.Length == 0 && UVs1.Length != 0;
//bool CalculateNormals = Normals.Length == 0;
List <ushort> FoamIndices = new List <ushort>();
foreach (var F in Msh.Faces)
{
ushort IndexA = (ushort)F.Indices[0];
ushort IndexB = (ushort)F.Indices[1];
ushort IndexC = (ushort)F.Indices[2];
if (CalculateTangents)
{
FoamVertex3 V0 = FoamVertices[IndexA];
FoamVertex3 V1 = FoamVertices[IndexB];
FoamVertex3 V2 = FoamVertices[IndexC];
Vector3 DeltaPos1 = V1.Position - V0.Position;
Vector3 DeltaPos2 = V2.Position - V0.Position;
//if (CalculateTangents) {
Vector2 DeltaUV1 = V1.UV - V0.UV;
Vector2 DeltaUV2 = V2.UV - V0.UV;
Vector3 Tangent = (DeltaPos1 * DeltaUV2.Y - DeltaPos2 * DeltaUV1.Y) * (1.0f / (DeltaUV1.X * DeltaUV2.Y - DeltaUV1.Y * DeltaUV2.X));
FoamVertices[IndexA].Tangent = FoamVertices[IndexB].Tangent = FoamVertices[IndexC].Tangent = Tangent;
/*}
*
* if (CalculateNormals)
* FoamVertices[IndexA].Normal = FoamVertices[IndexB].Normal = FoamVertices[IndexC].Normal = Vector3.Normalize(Vector3.Cross(DeltaPos1, DeltaPos2));*/
}
FoamIndices.AddRange(F.Indices.Select(I => (ushort)I));
}
FoamBoneInfo[] BoneInfo = null;
if (Msh.BoneCount != 0)
{
BoneInfo = new FoamBoneInfo[FoamVertices.Length];
Bone[] OrigBones = Msh.Bones.ToArray();
// Convert bones
for (int i = 0; i < OrigBones.Length; i++)
{
if (!ContainsBoneNamed(Bones, OrigBones[i].Name))
{
Utils.Append(ref Bones, new FoamBone(OrigBones[i].Name, -1, ConvertMatrix(OrigBones[i].OffsetMatrix)));
}
}
// Convert vertex bone information
for (int i = 0; i < FoamVertices.Length; i++)
{
BoneInfo[i] = FindWeightsFor(OrigBones, Bones, i);
}
}
MeshList.Add(new FoamMesh(FoamVertices, FoamIndices?.ToArray() ?? null, BoneInfo, MeshName, MaterialIndex));
}
if (Bones.Length > 0)
{
Node[] NodeHierarchy = Flatten(Sc.RootNode);
//Node SceneRootNode = Sc.RootNode;
Node RootNode = FindRoot(FindNode(NodeHierarchy, Bones[0].Name), Bones);
Utils.Prepend(ref Bones, new FoamBone(RootNode.Name, -1, ConvertMatrix(RootNode.Transform)));
/*Node RootNodeTest = RootNode;
* while (RootNodeTest.Parent != null) {
* Bones[0].BindMatrix = Bones[0].BindMatrix * ConvertMatrix(RootNodeTest.Transform);
* RootNodeTest = RootNodeTest.Parent;
* }*/
/*while (RootNode.Parent != null) {
* Utils.Prepend(ref Bones, new FoamBone(RootNode.Name, -1, NumMatrix4x4.Identity));
* RootNode = RootNode.Parent;
* }*/
for (int i = 0; i < Bones.Length; i++)
{
Node BoneNode = FindNode(NodeHierarchy, Bones[i].Name);
int BoneParentIndex = FindBoneIndex(Bones, BoneNode.Parent.Name);
if (BoneNode != RootNode)
{
if (BoneParentIndex == -1)
{
throw new Exception("Could not find a bone");
}
}
Bones[i].ParentBoneIndex = BoneParentIndex;
}
}
else
{
Bones = null;
}
// Animations
FoamAnimation[] Animations = null;
foreach (var Anim in Sc.Animations)
{
string[] BoneNames = Anim.NodeAnimationChannels.Select(C => C.NodeName).ToArray();
int FrameCount = Anim.NodeAnimationChannels[0].PositionKeyCount;
FoamAnimationFrame[] Frames = new FoamAnimationFrame[FrameCount];
for (int i = 0; i < FrameCount; i++)
{
Frames[i] = ReadFrame(Anim.NodeAnimationChannels, BoneNames, i);
}
FoamAnimation Animation = new FoamAnimation(Anim.Name, Frames, BoneNames, (float)Anim.DurationInTicks, (float)Anim.TicksPerSecond);
Utils.Append(ref Animations, Animation);
}
return(new FoamModel(Path.GetFileNameWithoutExtension(FileName), FoamFlags.Model, MeshList.ToArray(), Bones, Animations, MaterialList.ToArray()));
}
}
static void DrawBones(FoamModel Mdl)
{
if (Mdl.Bones == null)
{
return;
}
if (WorldTexts == null || WorldTexts.Length != Mdl.Bones.Length)
{
WorldTexts = new KeyValuePair <Vector2, string> [Mdl.Bones.Length];
for (int i = 0; i < WorldTexts.Length; i++)
{
WorldTexts[i] = new KeyValuePair <Vector2, string>(new Vector2(0, 0), "null");
}
}
//Matrix4x4 ParentRotMat = Matrix4x4.CreateFromYawPitchRoll(0, -Pi / 2, 0);
for (int i = 0; i < Mdl.Bones.Length; i++)
{
FoamBone Bone = Mdl.Bones[i];
//*
if (Mdl.Animations != null)
{
// Actual bones
Matrix4x4 ParentWorld = Matrix4x4.Identity;
if (Bone.ParentBoneIndex != -1)
{
ParentWorld = Mdl.CalcWorldTransform(0, FrameIndex, Bone.ParentBoneIndex);
}
Matrix4x4.Decompose(ParentWorld, out Vector3 ParentScale, out Quaternion ParentRot, out Vector3 ParentPos);
Matrix4x4 World = Mdl.CalcWorldTransform(0, FrameIndex, i);
Matrix4x4.Decompose(World, out Vector3 Scale, out Quaternion Rot, out Vector3 Pos);
DrawLine3D(ParentPos, Pos, Color.Red);
// Text
Vector3 Center = (Pos + ParentPos) / 2;
WorldTexts[i] = new KeyValuePair <Vector2, string>(Raylib.GetWorldToScreen(RotateVec3(Center), Cam3D), Bone.Name);
}
//*/
// Bind pose bones
Matrix4x4 BindParentWorld = Matrix4x4.Identity;
if (Bone.ParentBoneIndex != -1)
{
BindParentWorld = Mdl.CalcBindTransform(Bone.ParentBoneIndex);
}
Matrix4x4.Decompose(BindParentWorld, out Vector3 BindParentScale, out Quaternion BindParentRot, out Vector3 BindParentPos);
Matrix4x4 BindWorld = Mdl.CalcBindTransform(i);
Matrix4x4.Decompose(BindWorld, out Vector3 BindScale, out Quaternion BindRot, out Vector3 BindPos);
DrawLine3D(BindParentPos, BindPos, Color.Green);
//*/
}
}
