private static Vector3[] MeshToVertexArray(TargetPlatform platform, ModelMeshContent mesh)
{
MemoryStream ms;
var buffer = mesh.MeshParts[0].VertexBuffer;
// if (platform == TargetPlatform.Xbox360)
// {
// ms = new MemoryStream(ReverseByteOrder(buffer.VertexData));
// }
// else
// {
ms = new MemoryStream(buffer.VertexData);
// }
BinaryReader reader = new BinaryReader(ms);
var elems = buffer.VertexDeclaration.VertexElements;
int count = mesh.MeshParts[0].NumVertices;
ms.Seek(mesh.MeshParts[0].VertexOffset * buffer.VertexDeclaration.VertexStride.Value, SeekOrigin.Begin);
var vertices = new Vector3[count];
for (int i = 0; i < count; i++)
{
foreach (var elType in elems)
{
if (elType.VertexElementUsage == VertexElementUsage.Position)
{
vertices[i].X = reader.ReadSingle();
vertices[i].Y = reader.ReadSingle();
vertices[i].Z = reader.ReadSingle();
}
else
{
switch (elType.VertexElementFormat)
{
case VertexElementFormat.Color:
reader.ReadUInt32();
break;
case VertexElementFormat.Vector2:
reader.ReadSingle();
reader.ReadSingle();
break;
case VertexElementFormat.Vector3:
reader.ReadSingle();
reader.ReadSingle();
reader.ReadSingle();
break;
default:
throw new InvalidContentException("Unrecognized element type in vertex buffer: " + elType.ToString());
}
}
}
}
var transforms = new Stack<Matrix>();
var bone = mesh.ParentBone;
while (bone != null)
{
transforms.Push(bone.Transform);
bone = bone.Parent;
}
var transform = Matrix.Identity;
while (transforms.Count > 0)
{
transform *= transforms.Pop();
}
Vector3.Transform(vertices, ref transform, vertices);
return vertices;
}
// Go through the modelmeshes and replace all basic effects for skinned models
// with BasicPaletteEffect.
private void ReplaceBasicEffects(ModelMeshContent input)
{
foreach (ModelMeshPartContent part in input.MeshParts)
{
SkinningType skinType = ContentUtil.GetSkinningType(part.VertexBuffer.VertexDeclaration.VertexElements);
if (skinType != SkinningType.None)
{
ReplaceBasicEffect(skinType, part);
}
}
}
private static Vector3 GetMeshTranslation(ModelMeshContent mesh)
{
var pos = Vector3.Zero;
var bone = mesh.ParentBone;
while (bone != null)
{
pos += bone.Transform.Translation;
bone = bone.Parent;
}
return pos;
}
