public static TextureMap ReadTextureMap(ChunkReader reader)
{
var tmap = new TextureMap();
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<TextureCoordinates>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case TextureCoordinates.ID_SIZE:
tmap.Size.values[0] = subChunkReader.ReadSingle();
tmap.Size.values[1] = subChunkReader.ReadSingle();
tmap.Size.values[2] = subChunkReader.ReadSingle();
tmap.Size.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case TextureCoordinates.ID_CNTR:
tmap.Size.values[0] = subChunkReader.ReadSingle();
tmap.Size.values[1] = subChunkReader.ReadSingle();
tmap.Size.values[2] = subChunkReader.ReadSingle();
tmap.Center.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case TextureCoordinates.ID_ROTA:
tmap.Size.values[0] = subChunkReader.ReadSingle();
tmap.Size.values[1] = subChunkReader.ReadSingle();
tmap.Size.values[2] = subChunkReader.ReadSingle();
tmap.Rotate.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case TextureCoordinates.ID_FALL:
tmap.FallType = subChunkReader.ReadUInt16();
tmap.Size.values[0] = subChunkReader.ReadSingle();
tmap.Size.values[1] = subChunkReader.ReadSingle();
tmap.Size.values[2] = subChunkReader.ReadSingle();
tmap.FallOff.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case TextureCoordinates.ID_OREF:
tmap.ReferenceObject = subChunkReader.ReadString();
break;
case TextureCoordinates.ID_CSYS:
tmap.CoordinateSystem = subChunkReader.ReadUInt16();
break;
default:
Console.WriteLine("Unknown texture map type " + reader.GetIDString((uint)id));
break;
}
}
}
return tmap;
}
bool ReadImageMap(ChunkReader reader)
{
while (reader.BytesLeft > 0)
{
// get the next subchunk header
var id = reader.ReadID<ImageMapType>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case ImageMapType.ID_TMAP:
{
tmap = TextureMap.ReadTextureMap(subChunkReader);
break;
}
case ImageMapType.ID_PROJ: imap.projection = (ProjectionType)subChunkReader.ReadUInt16(); break;
case ImageMapType.ID_VMAP: imap.vertex_map_name = subChunkReader.ReadString(); break;
case ImageMapType.ID_AXIS: imap.axis = subChunkReader.ReadUInt16(); break;
case ImageMapType.ID_IMAG: imap.clip_index = subChunkReader.ReadVariableLengthIndex(); break;
case ImageMapType.ID_PIXB: imap.pblend = subChunkReader.ReadUInt16(); break;
case ImageMapType.ID_WRAP:
imap.wrapw_type = (WrapType)subChunkReader.ReadUInt16();
imap.wraph_type = (WrapType)subChunkReader.ReadUInt16();
break;
case ImageMapType.ID_WRPW:
imap.wrapw.value = subChunkReader.ReadSingle();
imap.wrapw.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case ImageMapType.ID_WRPH:
imap.wraph.value = subChunkReader.ReadSingle();
imap.wraph.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case ImageMapType.ID_AAST:
imap.aas_flags = subChunkReader.ReadUInt16();
imap.aa_strength = subChunkReader.ReadSingle();
break;
case ImageMapType.ID_STCK:
imap.stck.value = subChunkReader.ReadSingle();
imap.stck.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case ImageMapType.ID_TAMP:
imap.amplitude.value = subChunkReader.ReadSingle();
imap.amplitude.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
default:
Console.WriteLine("Unknown image map type " + reader.GetIDString((uint)id));
break;
}
}
}
return true;
}
bool ReadProcedural(ChunkReader reader)
{
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<ProceduralType>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case ProceduralType.ID_TMAP:
{
tmap = TextureMap.ReadTextureMap(subChunkReader);
break;
}
case ProceduralType.ID_AXIS:
{
proc.axis = subChunkReader.ReadUInt16();
break;
}
case ProceduralType.ID_VALU:
{
proc.value_0 = subChunkReader.ReadSingle();
if (sz >= 8) proc.value_1 = subChunkReader.ReadSingle();
if (sz >= 12) proc.value_2 = subChunkReader.ReadSingle();
break;
}
case ProceduralType.ID_FUNC:
{
proc.name = subChunkReader.ReadString();
proc.data = subChunkReader.ReadBytes((uint)subChunkReader.BytesLeft);
break;
}
default:
Console.WriteLine("Unknown procedural map type " + reader.GetIDString((uint)id));
break;
}
}
}
return true;
}
bool ReadGradient(ChunkReader reader)
{
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<GradientType>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case GradientType.ID_TMAP:
{
tmap = TextureMap.ReadTextureMap(subChunkReader);
break;
}
case GradientType.ID_PNAM:
{
grad.paramname = subChunkReader.ReadString();
break;
}
case GradientType.ID_INAM:
{
grad.itemname = subChunkReader.ReadString();
break;
}
case GradientType.ID_GRST:
{
grad.start = subChunkReader.ReadSingle();
break;
}
case GradientType.ID_GREN:
{
grad.end = subChunkReader.ReadSingle();
break;
}
case GradientType.ID_GRPT:
{
grad.repeat = subChunkReader.ReadUInt16();
break;
}
case GradientType.ID_FKEY:
{
var keys = new List<GradientKey>();
while (subChunkReader.BytesLeft > 0)
{
var key = new GradientKey();
key.value = subChunkReader.ReadSingle();
key.rgba_0 = subChunkReader.ReadSingle();
key.rgba_1 = subChunkReader.ReadSingle();
key.rgba_2 = subChunkReader.ReadSingle();
key.rgba_3 = subChunkReader.ReadSingle();
keys.Add(key);
}
grad.Keys = keys.ToArray();
break;
}
case GradientType.ID_IKEY:
{
var ikeys = new List<ushort>();
while (subChunkReader.BytesLeft > 0)
ikeys.Add(subChunkReader.ReadUInt16());
grad.ikey = ikeys.ToArray();
break;
}
case GradientType.ID_GVER: // unknown, not mentioned in lightwave sdk documentation
break;
default:
Console.WriteLine("Unknown gradient type " + reader.GetIDString((uint)id));
break;
}
}
}
return true;
}