private Matrix4 FromAssimpMatrix(Matrix4x4 mat)
{
Vector3D scaling;
Vector3D tranlation;
Assimp.Quaternion rot;
mat.Decompose(out scaling, out rot, out tranlation);
Console.WriteLine($"rotQ " + rot);
Matrix4 positionMat = Matrix4.CreateTranslation(AssimpHelper.FromVector(tranlation));
Matrix4 rotQ = Matrix4.CreateFromQuaternion(AssimpHelper.TKQuaternion(rot));
Matrix4 scaleMat = Matrix4.CreateScale(AssimpHelper.FromVector(scaling));
Matrix4 matrixFinal = scaleMat * rotQ * positionMat;
return(matrixFinal);
}
public List <Vertex> GetVertices(Mesh msh, Matrix4 transform, STGenericObject STobj)
{
List <Vertex> vertices = new List <Vertex>();
for (int v = 0; v < msh.VertexCount; v++)
{
Vertex vert = new Vertex();
if (msh.HasVertices)
{
vert.pos = Vector3.TransformPosition(AssimpHelper.FromVector(msh.Vertices[v]), transform);
}
if (msh.HasNormals)
{
vert.nrm = Vector3.TransformNormal(AssimpHelper.FromVector(msh.Normals[v]), transform);
}
if (msh.HasTextureCoords(0))
{
vert.uv0 = new Vector2(msh.TextureCoordinateChannels[0][v].X, msh.TextureCoordinateChannels[0][v].Y);
}
if (msh.HasTextureCoords(1))
{
vert.uv1 = new Vector2(msh.TextureCoordinateChannels[1][v].X, msh.TextureCoordinateChannels[1][v].Y);
}
if (msh.HasTextureCoords(2))
{
vert.uv2 = new Vector2(msh.TextureCoordinateChannels[2][v].X, msh.TextureCoordinateChannels[2][v].Y);
}
if (msh.HasTangentBasis)
{
vert.tan = new Vector4(msh.Tangents[v].X, msh.Tangents[v].Y, msh.Tangents[v].Z, 1);
}
if (msh.HasVertexColors(0))
{
vert.col = new Vector4(msh.VertexColorChannels[0][v].R, msh.VertexColorChannels[0][v].G, msh.VertexColorChannels[0][v].B, msh.VertexColorChannels[0][v].A);
}
if (msh.HasTangentBasis)
{
vert.bitan = new Vector4(msh.BiTangents[v].X, msh.BiTangents[v].Y, msh.BiTangents[v].Z, 1);
}
vertices.Add(vert);
}
if (msh.HasBones)
{
for (int i = 0; i < msh.BoneCount; i++)
{
Bone bn = msh.Bones[i];
if (bn.HasVertexWeights)
{
foreach (VertexWeight w in bn.VertexWeights)
{
// vertices[w.VertexID].pos = Vector3.TransformPosition(vertices[w.VertexID].pos, AssimpHelper.TKMatrix(bn.OffsetMatrix));
vertices[w.VertexID].boneWeights.Add(w.Weight);
vertices[w.VertexID].boneNames.Add(bn.Name);
BoneNames.Add(bn.Name);
}
}
}
}
return(vertices);
}
public List <Vertex> GetVertices(Mesh msh, Matrix4 transform, STGenericObject STobj)
{
Matrix4 NormalsTransform = Matrix4.CreateFromQuaternion(transform.ExtractRotation());
List <Vertex> vertices = new List <Vertex>();
for (int v = 0; v < msh.VertexCount; v++)
{
Vertex vert = new Vertex();
if (msh.HasVertices)
{
vert.pos = Vector3.TransformPosition(AssimpHelper.FromVector(msh.Vertices[v]), transform);
}
if (msh.HasNormals)
{
vert.nrm = Vector3.TransformNormal(AssimpHelper.FromVector(msh.Normals[v]), NormalsTransform);
}
if (msh.HasTextureCoords(0))
{
vert.uv0 = new Vector2(msh.TextureCoordinateChannels[0][v].X, msh.TextureCoordinateChannels[0][v].Y);
}
if (msh.HasTextureCoords(1))
{
vert.uv1 = new Vector2(msh.TextureCoordinateChannels[1][v].X, msh.TextureCoordinateChannels[1][v].Y);
}
if (msh.HasTextureCoords(2))
{
vert.uv2 = new Vector2(msh.TextureCoordinateChannels[2][v].X, msh.TextureCoordinateChannels[2][v].Y);
}
if (msh.HasTangentBasis)
{
vert.tan = new Vector4(msh.Tangents[v].X, msh.Tangents[v].Y, msh.Tangents[v].Z, 1);
}
if (msh.HasVertexColors(0))
{
vert.col = new Vector4(msh.VertexColorChannels[0][v].R, msh.VertexColorChannels[0][v].G, msh.VertexColorChannels[0][v].B, msh.VertexColorChannels[0][v].A);
Console.WriteLine("VTX Col " + vert.col);
}
if (msh.HasTangentBasis)
{
vert.bitan = new Vector4(msh.BiTangents[v].X, msh.BiTangents[v].Y, msh.BiTangents[v].Z, 1);
}
vertices.Add(vert);
}
if (msh.HasBones)
{
STConsole.WriteLine(msh.Name + " HasBones " + msh.HasBones);
STConsole.WriteLine(msh.Name + " BoneCount " + msh.BoneCount);
for (int i = 0; i < msh.BoneCount; i++)
{
Bone bn = msh.Bones[i];
if (bn.HasVertexWeights)
{
foreach (VertexWeight w in bn.VertexWeights)
{
vertices[w.VertexID].boneWeights.Add(w.Weight);
vertices[w.VertexID].boneNames.Add(bn.Name);
BoneNames.Add(bn.Name);
}
}
}
}
return(vertices);
}