public static Surface ReadSurface(ChunkReader reader)
{
// allocate the Surface structure
var surf = new Surface();
// names
surf.name = reader.ReadString();
surf.srcname = reader.ReadString();
// process subchunks as they're encountered
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<SurfaceParameter>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
// Vertex Color Map - VCOL { intensity[FP4], envelope[VX], vmap-type[ID4], name[S0] }
// The vertex color map subchunk identifies an RGB or RGBA VMAP that will be used to color the surface
case SurfaceParameter.ID_VCOL:
{
var intensity = subChunkReader.ReadSingle();
var envelope_index = subChunkReader.ReadVariableLengthIndex();
var vmap_type = subChunkReader.ReadUInt32();
var name = subChunkReader.ReadString();
break;
}
case SurfaceParameter.ID_CMNT: // Not mentioned in LWO documentation, maybe means 'comment'?
{
break;
}
case SurfaceParameter.ID_VERS: // Not mentioned in LWO documentation, maybe means 'version'?
{
break;
}
case SurfaceParameter.ID_NODS: // Not mentioned in LWO documentation, maybe means 'nodes'?
{
break;
}
case SurfaceParameter.ID_COLR:
{
surf.color.Red = subChunkReader.ReadSingle();
surf.color.Green = subChunkReader.ReadSingle();
surf.color.Blue = subChunkReader.ReadSingle();
surf.color.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
}
case SurfaceParameter.ID_LUMI:
surf.luminosity.Value = subChunkReader.ReadSingle();
surf.luminosity.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_DIFF:
surf.diffuse.Value = subChunkReader.ReadSingle();
surf.diffuse.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_SPEC:
surf.specularity.Value = subChunkReader.ReadSingle();
surf.specularity.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_GLOS:
surf.glossiness.Value = subChunkReader.ReadSingle();
surf.glossiness.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_REFL:
surf.reflection.values.Value = subChunkReader.ReadSingle();
surf.reflection.values.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_RFOP:
surf.reflection.options = subChunkReader.ReadUInt16();
break;
case SurfaceParameter.ID_RIMG:
surf.reflection.clip_index = subChunkReader.ReadVariableLengthIndex();
break;
// Reflection Blurring - RBLR { blur-percentage[FP4], envelope[VX] }
// The amount of blurring of reflections. The default is zero.
case SurfaceParameter.ID_RBLR:
break;
case SurfaceParameter.ID_RSAN:
surf.reflection.seam_angle = subChunkReader.ReadSingle();
break;
case SurfaceParameter.ID_TRAN:
surf.transparency.values.Value = subChunkReader.ReadSingle();
surf.transparency.values.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_TROP:
surf.transparency.options = subChunkReader.ReadUInt16();
break;
case SurfaceParameter.ID_TIMG:
surf.transparency.clip_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_RIND:
surf.eta.Value = subChunkReader.ReadSingle();
surf.eta.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_TRNL:
surf.translucency.Value = subChunkReader.ReadSingle();
surf.translucency.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_BUMP:
surf.bump.Value = subChunkReader.ReadSingle();
surf.bump.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_SMAN:
surf.smooth = subChunkReader.ReadSingle();
break;
case SurfaceParameter.ID_SIDE:
surf.sideflags = subChunkReader.ReadUInt16();
break;
case SurfaceParameter.ID_CLRH:
surf.color_hilite.value = subChunkReader.ReadSingle();
surf.color_hilite.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_CLRF:
surf.color_filter.value = subChunkReader.ReadSingle();
surf.color_filter.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_ADTR:
surf.add_trans.value = subChunkReader.ReadSingle();
surf.add_trans.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_SHRP:
surf.dif_sharp.value = subChunkReader.ReadSingle();
surf.dif_sharp.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_GVAL:
surf.glow.value = subChunkReader.ReadSingle();
surf.glow.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
// Render Outlines - LINE { flags[U2], ( size[F4], size-envelope[VX], ( color[COL12], color-envelope[VX] )? )? }
case SurfaceParameter.ID_LINE:
surf.line.enabled = 1;
if (sz >= 2) surf.line.flags = subChunkReader.ReadUInt16();
if (sz >= 6) surf.line.size.value = subChunkReader.ReadSingle();
if (sz >= 8) surf.line.size.envelope_index = subChunkReader.ReadVariableLengthIndex();
break;
case SurfaceParameter.ID_ALPH:
surf.alpha_mode = subChunkReader.ReadUInt16();
surf.alpha = subChunkReader.ReadSingle();
break;
case SurfaceParameter.ID_AVAL:
surf.alpha = subChunkReader.ReadSingle();
break;
case SurfaceParameter.ID_BLOK:
{
var type = subChunkReader.ReadID<TextureType>();
switch (type)
{
case TextureType.ID_IMAP:
case TextureType.ID_PROC:
case TextureType.ID_GRAD:
{
using (var blockReader = subChunkReader.GetSubChunk((uint)subChunkReader.BytesLeft))
{
var tex = Texture.ReadTexture(blockReader, type);
switch ( tex.Channel )
{
case TextureChannel.ID_COLR: surf.color .textures.Add(tex); break;
case TextureChannel.ID_LUMI: surf.luminosity .textures.Add(tex); break;
case TextureChannel.ID_DIFF: surf.diffuse .textures.Add(tex); break;
case TextureChannel.ID_SPEC: surf.specularity .textures.Add(tex); break;
case TextureChannel.ID_GLOS: surf.glossiness .textures.Add(tex); break;
case TextureChannel.ID_REFL: surf.reflection .values .textures.Add(tex); break;
case TextureChannel.ID_TRAN: surf.transparency .values .textures.Add(tex); break;
case TextureChannel.ID_RIND: surf.eta .textures.Add(tex); break;
case TextureChannel.ID_TRNL: surf.translucency .textures.Add(tex); break;
case TextureChannel.ID_BUMP: surf.bump .textures.Add(tex); break;
default:
throw new Exception("Unknown texture channel"); // TODO: create proper exception calass for this
}
}
break;
}
case TextureType.ID_SHDR:
{
using (var blockReader = subChunkReader.GetSubChunk((uint)subChunkReader.BytesLeft))
{
surf.shader.Add(
LightwavePlugin.ReadShader(blockReader)
);
}
break;
}
default:
Console.WriteLine("Unknown blok type " + reader.GetIDString((uint)type));
break;
}
break;
}
default:
Console.WriteLine("Unknown surface parameter type " + reader.GetIDString((uint)id));
break;
}
}
}
return surf;
}
// LWOB
public static Surface ReadSurface5(ChunkReader reader, LightwaveObject obj)
{
var surf = new Surface();
surf.name = reader.ReadString();
Texture tex = null;
LightwavePlugin shdr = null;
float[] v = new float[3];
uint flags = 0;
// process subchunks as they're encountered
while (reader.BytesLeft > 0)
{
var id = reader.ReadID<SurfaceParameter>();
var sz = reader.ReadUInt16();
sz += (ushort)(sz & 1);
using (var subChunkReader = reader.GetSubChunk(sz))
{
switch (id)
{
case SurfaceParameter.ID_COLR:
{
surf.color.Red = subChunkReader.ReadUInt8() / 255.0f;
surf.color.Green = subChunkReader.ReadUInt8() / 255.0f;
surf.color.Blue = subChunkReader.ReadUInt8() / 255.0f;
break;
}
case SurfaceParameter.ID_FLAG:
{
flags = subChunkReader.ReadUInt16();
if ((flags & 4) != 0) surf.smooth = 1.56207f;
if ((flags & 8) != 0) surf.color_hilite.value = 1.0f;
if ((flags & 16) != 0) surf.color_filter.value = 1.0f;
if ((flags & 128) != 0) surf.dif_sharp.value = 0.5f;
if ((flags & 256) != 0) surf.sideflags = 3;
if ((flags & 512) != 0) surf.add_trans.value = 1.0f;
break;
}
case SurfaceParameter.ID_LUMI:
{
surf.luminosity.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_VLUM:
{
surf.luminosity.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_DIFF:
{
surf.diffuse.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_VDIF:
{
surf.diffuse.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_SPEC:
{
surf.specularity.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_VSPC:
{
surf.specularity.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_GLOS:
{
surf.glossiness.Value = (float)Math.Log(subChunkReader.ReadUInt16()) / 20.7944f;
break;
}
case SurfaceParameter.ID_SMAN:
{
surf.smooth = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_REFL:
{
surf.reflection.values.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_RFLT:
{
surf.reflection.options = subChunkReader.ReadUInt16();
break;
}
case SurfaceParameter.ID_RIMG:
{
var s = subChunkReader.ReadString();
surf.reflection.clip_index = AddClip(s, obj.Clips);
surf.reflection.options = 3;
break;
}
case SurfaceParameter.ID_RSAN:
{
surf.reflection.seam_angle = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TRAN:
{
surf.transparency.values.Value = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_RIND:
{
surf.eta.Value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_BTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.bump.textures.Add(tex);
break;
}
case SurfaceParameter.ID_CTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.color.textures.Add(tex);
break;
}
case SurfaceParameter.ID_DTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.diffuse.textures.Add(tex);
break;
}
case SurfaceParameter.ID_LTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.luminosity.textures.Add(tex);
break;
}
case SurfaceParameter.ID_RTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.reflection.values.textures.Add(tex);
break;
}
case SurfaceParameter.ID_STEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.specularity.textures.Add(tex);
break;
}
case SurfaceParameter.ID_TTEX:
{
var s = subChunkReader.ReadString(sz);//.getbytes((uint)sz);
tex = ParseTexture(s);
surf.transparency.values.textures.Add(tex);
break;
}
case SurfaceParameter.ID_TFLG:
{
if (tex == null)
return null;
flags = subChunkReader.ReadUInt16();
int i = 0;
if ((flags & 1) != 0) i = 0;
if ((flags & 2) != 0) i = 1;
if ((flags & 4) != 0) i = 2;
tex.axis = (ushort)i;
if (tex.Type == TextureType.ID_IMAP)
tex.imap.axis = i;
else
tex.proc.axis = i;
if ((flags & 8) != 0) tex.tmap.CoordinateSystem = 1;
if ((flags & 16) != 0) tex.negative = 1;
if ((flags & 32) != 0) tex.imap.pblend = 1;
if ((flags & 64) != 0)
{
tex.imap.aa_strength = 1.0f;
tex.imap.aas_flags = 1;
}
break;
}
case SurfaceParameter.ID_TSIZ:
{
tex.tmap.Size.values[0] = subChunkReader.ReadSingle();
tex.tmap.Size.values[1] = subChunkReader.ReadSingle();
tex.tmap.Size.values[2] = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TCTR:
{
tex.tmap.Center.values[0] = subChunkReader.ReadSingle();
tex.tmap.Center.values[1] = subChunkReader.ReadSingle();
tex.tmap.Center.values[2] = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TFAL:
{
tex.tmap.FallOff.values[0] = subChunkReader.ReadSingle();
tex.tmap.FallOff.values[1] = subChunkReader.ReadSingle();
tex.tmap.FallOff.values[2] = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TVEL:
{
for (var i = 0; i < 3; i++)
v[i] = subChunkReader.ReadSingle();
tex.tmap.Center.envelope_index = AddTextureVelocity(tex.tmap.Center.values, v, obj.Envelopes);
break;
}
case SurfaceParameter.ID_TCLR:
{
if (tex.Type == TextureType.ID_PROC)
{
tex.proc.value_0 = subChunkReader.ReadUInt8() / 255.0f;
tex.proc.value_1 = subChunkReader.ReadUInt8() / 255.0f;
tex.proc.value_2 = subChunkReader.ReadUInt8() / 255.0f;
}
break;
}
case SurfaceParameter.ID_TVAL:
{
tex.proc.value_0 = subChunkReader.ReadSInt16() / 256.0f;
break;
}
case SurfaceParameter.ID_TAMP:
{
if (tex.Type == TextureType.ID_IMAP)
tex.imap.amplitude.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TIMG:
{
var s = subChunkReader.ReadString();
tex.imap.clip_index = AddClip(s, obj.Clips);
break;
}
case SurfaceParameter.ID_TAAS:
{
tex.imap.aa_strength = subChunkReader.ReadSingle();
tex.imap.aas_flags = 1;
break;
}
case SurfaceParameter.ID_TREF:
{
tex.tmap.ReferenceObject = subChunkReader.ReadString((uint)sz);//.getbytes((uint)sz);
break;
}
case SurfaceParameter.ID_TOPC:
{
tex.opacity.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TFP0:
{
if (tex.Type == TextureType.ID_IMAP)
tex.imap.wrapw.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_TFP1:
{
if (tex.Type == TextureType.ID_IMAP)
tex.imap.wraph.value = subChunkReader.ReadSingle();
break;
}
case SurfaceParameter.ID_SHDR:
{
shdr = new LightwavePlugin();
if (shdr == null)
return null;
shdr.name = subChunkReader.ReadString((uint)sz);
surf.shader.Add(shdr);
break;
}
case SurfaceParameter.ID_SDAT:
{
if (shdr == null)
return null;
shdr.data = subChunkReader.ReadBytes(sz);
break;
}
default:
Console.WriteLine("Unknown surface parameter type " + reader.GetIDString((uint)id));
break;
}
}
}
return surf;
}
void ResolvePolygonSurfaces(List<Polygon> polygonList, List<string> surfaceNames, List<Surface> surfaceList, uint layerIndex)
{
var surfaceLookup = new Surface[surfaceNames.Count];
for (var i = 0; i < surfaceNames.Count; i++)
{
foreach (var surface in surfaceList)
{
if (string.Compare(surface.name, surfaceNames[i]) == 0)
{
surfaceLookup[i] = surface;
break;
}
}
}
foreach (var polygon in polygonList)
{
polygon.layer_index = layerIndex;
var surface_index = (int)polygon.surf_index;
if (surface_index < 0 ||
surface_index > surfaceLookup.Length)
throw new Exception("Surface index out of bounds"); // TODO: create a proper exception class
// make sure the surface exists, even if it's empty ...
if (surfaceLookup[surface_index] == null)
{
var new_surface = new Surface();
new_surface.name = surfaceNames[surface_index];
surfaceList.Add(new_surface);
surfaceLookup[surface_index] = new_surface;
}
polygon.SurfaceReference = surfaceLookup[surface_index];
}
}
