private SsbhVertexAttribute[] ReadAttributeVec4(MeshAttribute attr, int position, int count, string attributeName, BinaryReader buffer, int offset, int stride)
{
var format = (SsbVertexAttribFormat)attr.DataType;
var attributes = new SsbhVertexAttribute[count];
for (int i = 0; i < count; i++)
{
buffer.BaseStream.Position = offset + attr.BufferOffset + stride * (position + i);
switch (format)
{
case SsbVertexAttribFormat.Byte:
attributes[i] = new SsbhVertexAttribute(buffer.ReadByte(), buffer.ReadByte(), buffer.ReadByte(), buffer.ReadByte());
break;
case SsbVertexAttribFormat.Float:
attributes[i] = new SsbhVertexAttribute(buffer.ReadSingle(), buffer.ReadSingle(), buffer.ReadSingle(), buffer.ReadSingle());
break;
case SsbVertexAttribFormat.HalfFloat:
attributes[i] = new SsbhVertexAttribute(ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer));
break;
case SsbVertexAttribFormat.HalfFloat2:
attributes[i] = new SsbhVertexAttribute(ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer));
break;
}
}
return(attributes);
}
private SsbhVertexAttribute[] ReadAttributeVec4(MeshAttribute attr, int position, int count, BinaryReader buffer, int offset, int stride)
{
var format = (MeshAttribute.AttributeDataType)attr.DataType;
var attributes = new SsbhVertexAttribute[count];
for (int i = 0; i < count; i++)
{
buffer.BaseStream.Position = offset + attr.BufferOffset + stride * (position + i);
switch (format)
{
// TODO: Add option to not convert smaller types to larger types.
case MeshAttribute.AttributeDataType.Byte:
attributes[i] = new SsbhVertexAttribute(buffer.ReadByte(), buffer.ReadByte(), buffer.ReadByte(), buffer.ReadByte());
break;
case MeshAttribute.AttributeDataType.Float:
attributes[i] = new SsbhVertexAttribute(buffer.ReadSingle(), buffer.ReadSingle(), buffer.ReadSingle(), buffer.ReadSingle());
break;
case MeshAttribute.AttributeDataType.HalfFloat:
attributes[i] = new SsbhVertexAttribute(ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer));
break;
case MeshAttribute.AttributeDataType.HalfFloat2:
attributes[i] = new SsbhVertexAttribute(ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer), ReadHalfFloat(buffer));
break;
}
}
return(attributes);
}
/// <summary>
/// Sets the axis aligned bounding box for the current Mesh
/// </summary>
/// <param name="min"></param>
/// <param name="max"></param>
public void SetAaBoundingBox(SsbhVertexAttribute min, SsbhVertexAttribute max)
{
if (currentMesh == null)
{
return;
}
currentMesh.BbMax = max;
currentMesh.BbMin = min;
}
/// <summary>
/// Generates a very simple Axis Aligned Bounding Box
/// </summary>
/// <param name="points"></param>
/// <param name="max"></param>
/// <param name="min"></param>
public static void GenerateAabb(IEnumerable <SsbhVertexAttribute> points, out SsbhVertexAttribute max, out SsbhVertexAttribute min)
{
max = new SsbhVertexAttribute(-float.MaxValue, -float.MaxValue, -float.MaxValue);
min = new SsbhVertexAttribute(float.MaxValue, float.MaxValue, float.MaxValue);
foreach (SsbhVertexAttribute p in points)
{
max.X = Math.Max(max.X, p.X);
max.Y = Math.Max(max.Y, p.Y);
max.Z = Math.Max(max.Z, p.Z);
min.X = Math.Min(min.X, p.X);
min.Y = Math.Min(min.Y, p.Y);
min.Z = Math.Min(min.Z, p.Z);
}
}
private SsbhVertexAttribute[] ReadAttribute(MeshAttribute attr, int count, BinaryReader buffer, int offset, int stride, int attributeLength)
{
var format = attr.DataType;
var attributes = new SsbhVertexAttribute[count];
for (int i = 0; i < count; i++)
{
buffer.BaseStream.Position = offset + attr.BufferOffset + stride * i;
attributes[i] = new SsbhVertexAttribute();
switch (format)
{
// TODO: Add option to not convert smaller types to larger types.
case MeshAttribute.AttributeDataType.Byte:
for (int j = 0; j < attributeLength; j++)
{
attributes[i][j] = buffer.ReadByte();
}
break;
case MeshAttribute.AttributeDataType.Float:
for (int j = 0; j < attributeLength; j++)
{
attributes[i][j] = buffer.ReadSingle();
}
break;
case MeshAttribute.AttributeDataType.HalfFloat:
for (int j = 0; j < attributeLength; j++)
{
attributes[i][j] = ReadHalfFloat(buffer);
}
break;
case MeshAttribute.AttributeDataType.HalfFloat2:
for (int j = 0; j < attributeLength; j++)
{
attributes[i][j] = ReadHalfFloat(buffer);
}
break;
}
}
return(attributes);
}
/// <summary>
/// Sets the oriented bounding box for the current Mesh
/// </summary>
/// <param name="center"></param>
/// <param name="size"></param>
/// <param name="matrix3X3"></param>
public void SetOrientedBoundingBox(SsbhVertexAttribute center, SsbhVertexAttribute size, float[] matrix3X3)
{
if (currentMesh == null)
{
return;
}
if (matrix3X3 == null)
{
return;
}
if (matrix3X3.Length != 9)
{
throw new IndexOutOfRangeException("Matrix must contain 9 entries in row major order");
}
currentMesh.ObbCenter = center;
currentMesh.ObbSize = size;
currentMesh.ObbMatrix3X3 = matrix3X3;
}