public static void Freeze(ModelMesh model, FreezeComponents flags)
{
bool freezePos = flags.HasFlag(FreezeComponents.Position);
bool freezeRot = flags.HasFlag(FreezeComponents.Rotation);
bool freezeSca = flags.HasFlag(FreezeComponents.Scale);
Matrix4D mPosition = Matrix4D.CreateTranslation(model.Parent.Transform.ExtractTranslation());
Matrix4D mRotation = Matrix4D.CreateFromQuaternion(model.Parent.Transform.ExtractRotation());
Matrix4D mScale = Matrix4D.CreateScale(model.Parent.Transform.ExtractScale());
if (freezePos)
{
model.Parent.Transform = model.Parent.Transform.ClearTranslation();
}
if (freezeRot)
{
model.Parent.Transform = model.Parent.Transform.ClearRotation();
}
if (freezeSca)
{
model.Parent.Transform = model.Parent.Transform.ClearScale();
}
foreach (ModelMeshPart meshpart in model.MeshParts)
{
for (int i = 0; i < meshpart.VertexCount; i++)
{
if (freezePos)
{
meshpart.VertexBuffer.ModifyVertexPosition(i, Vector3.TransformVector(meshpart.VertexBuffer.Data[i].Position, mPosition));
}
if (freezeRot)
{
meshpart.VertexBuffer.ModifyVertexPosition(i, Vector3.TransformVector(meshpart.VertexBuffer.Data[i].Position, mRotation));
meshpart.VertexBuffer.ModifyVertexNormal(i, Vector3.TransformNormal(meshpart.VertexBuffer.Data[i].Normal, mRotation));
}
if (freezeSca)
{
meshpart.VertexBuffer.ModifyVertexPosition(i, Vector3.TransformVector(meshpart.VertexBuffer.Data[i].Position, mScale));
}
}
meshpart.VertexBuffer.Initialise();
}
model.BoundingBox.Calculate(model);
}
public static void Freeze(ModelMesh model, FreezeComponents flags)
{
bool bFreezePos = ((flags & FreezeComponents.Position) == FreezeComponents.Position);
bool bFreezeRot = ((flags & FreezeComponents.Rotation) == FreezeComponents.Rotation);
bool bFreezeSca = ((flags & FreezeComponents.Scale) == FreezeComponents.Scale);
var mPosition = Matrix4.CreateTranslation(model.Parent.Transform.ExtractTranslation());
var mRotation = Matrix4.CreateFromQuaternion(model.Parent.Transform.ExtractRotation());
var mScale = Matrix4.CreateScale(model.Parent.Transform.ExtractScale());
if (bFreezePos) { model.Parent.Transform = model.Parent.Transform.ClearTranslation(); }
if (bFreezeRot) { model.Parent.Transform = model.Parent.Transform.ClearRotation(); }
if (bFreezeSca) { model.Parent.Transform = model.Parent.Transform.ClearScale(); }
foreach (var meshpart in model.MeshParts)
{
for (int i = 0; i < meshpart.VertexCount; i++)
{
if (bFreezePos) { meshpart.VertexBuffer.ModifyVertexPosition(i, Vector3.Transform(meshpart.VertexBuffer.Data[i].Position, mPosition)); }
if (bFreezeRot)
{
meshpart.VertexBuffer.ModifyVertexPosition(i, Vector3.Transform(meshpart.VertexBuffer.Data[i].Position, mRotation));
meshpart.VertexBuffer.ModifyVertexNormal(i, Vector3.TransformNormal(meshpart.VertexBuffer.Data[i].Normal, mRotation));
}
if (bFreezeSca) { meshpart.VertexBuffer.ModifyVertexPosition(i, Vector3.Transform(meshpart.VertexBuffer.Data[i].Position, mScale)); }
}
meshpart.VertexBuffer.Initialise();
}
model.BoundingBox.Calculate(model);
}
