/// <summary>
/// Create a new texture for BTEX, CTEX, etc. subchunks.
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
static lwTexture get_texture(string s)
{
lwTexture tex = new lwTexture();
tex.tmap.size.val[0] =
tex.tmap.size.val[1] =
tex.tmap.size.val[2] = 1.0f;
tex.opacity.val = 1.0f;
tex.enabled = 1;
if (s.Contains("Image Map"))
{
tex.type = LWID.ID_IMAP;
if (s.Contains("Planar"))
{
tex.imap.projection = 0;
}
else if (s.Contains("Cylindrical"))
{
tex.imap.projection = 1;
}
else if (s.Contains("Spherical"))
{
tex.imap.projection = 2;
}
else if (s.Contains("Cubic"))
{
tex.imap.projection = 3;
}
else if (s.Contains("Front"))
{
tex.imap.projection = 4;
}
tex.imap.aa_strength = 1.0f;
tex.imap.amplitude.val = 1.0f;
}
else
{
tex.type = LWID.ID_PROC;
tex.proc.name = s;
}
return(tex);
}
lwSurface GetSurface5(BinaryReader fp, int cksize, ref int flen)
{
lwSurface surf;
lwTexture tex = null;
lwPlugin shdr = null;
string s;
float[] v = new float[3];
uint id, flags;
ushort sz;
long pos;
int i = 0;
/* allocate the Surface structure */
surf = new lwSurface();
/* non-zero defaults */
surf.color.rgb[0] = 0.78431f;
surf.color.rgb[1] = 0.78431f;
surf.color.rgb[2] = 0.78431f;
surf.diffuse.val = 1.0f;
surf.glossiness.val = 0.4f;
surf.bump.val = 1.0f;
surf.eta.val = 1.0f;
surf.sideflags = 1;
/* remember where we started */
flen = 0;
pos = fp.BaseStream.Position;
/* name */
surf.name = lwio.getS0(fp, ref flen);
/* first subchunk header */
id = lwio.getU4(fp, ref flen);
sz = lwio.getU2(fp, ref flen);
if (0 > flen)
{
goto Fail;
}
/* process subchunks as they're encountered */
while (true)
{
sz += (ushort)(sz & 1);
flen = 0;
switch (id)
{
case LWID.ID_COLR:
surf.color.rgb[0] = lwio.getU1(fp, ref flen) / 255.0f;
surf.color.rgb[1] = lwio.getU1(fp, ref flen) / 255.0f;
surf.color.rgb[2] = lwio.getU1(fp, ref flen) / 255.0f;
break;
case ID_FLAG:
flags = lwio.getU2(fp, ref flen);
if ((flags & 4) > 0)
{
surf.smooth = 1.56207f;
}
if ((flags & 8) > 0)
{
surf.color_hilite.val = 1.0f;
}
if ((flags & 16) > 0)
{
surf.color_filter.val = 1.0f;
}
if ((flags & 128) > 0)
{
surf.dif_sharp.val = 0.5f;
}
if ((flags & 256) > 0)
{
surf.sideflags = 3;
}
if ((flags & 512) > 0)
{
surf.add_trans.val = 1.0f;
}
break;
case LWID.ID_LUMI:
surf.luminosity.val = lwio.getI2(fp, ref flen) / 256.0f;
break;
case ID_VLUM:
surf.luminosity.val = lwio.getF4(fp, ref flen);
break;
case LWID.ID_DIFF:
surf.diffuse.val = lwio.getI2(fp, ref flen) / 256.0f;
break;
case ID_VDIF:
surf.diffuse.val = lwio.getF4(fp, ref flen);
break;
case LWID.ID_SPEC:
surf.specularity.val = lwio.getI2(fp, ref flen) / 256.0f;
break;
case ID_VSPC:
surf.specularity.val = lwio.getF4(fp, ref flen);
break;
case LWID.ID_GLOS:
surf.glossiness.val = (float)Math.Log(lwio.getU2(fp, ref flen)) / 20.7944f;
break;
case LWID.ID_SMAN:
surf.smooth = lwio.getF4(fp, ref flen);
break;
case LWID.ID_REFL:
surf.reflection.val.val = lwio.getI2(fp, ref flen) / 256.0f;
break;
case ID_RFLT:
surf.reflection.options = lwio.getU2(fp, ref flen);
break;
case LWID.ID_RIMG:
s = lwio.getS0(fp, ref flen);
surf.reflection.cindex = add_clip(ref s, clip, ref nclips);
surf.reflection.options = 3;
break;
case LWID.ID_RSAN:
surf.reflection.seam_angle = lwio.getF4(fp, ref flen);
break;
case LWID.ID_TRAN:
surf.transparency.val.val = lwio.getI2(fp, ref flen) / 256.0f;
break;
case LWID.ID_RIND:
surf.eta.val = lwio.getF4(fp, ref flen);
break;
case ID_BTEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.bump.tex.AddLast(tex);
break;
case ID_CTEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.color.tex.AddLast(tex);
break;
case ID_DTEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.diffuse.tex.AddLast(tex);
break;
case ID_LTEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.luminosity.tex.AddLast(tex);
break;
case ID_RTEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.reflection.val.tex.AddLast(tex);
break;
case ID_STEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.specularity.tex.AddLast(tex);
break;
case ID_TTEX:
s = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
tex = get_texture(s);
surf.transparency.val.tex.AddLast(tex);
break;
case ID_TFLG:
flags = lwio.getU2(fp, ref flen);
if ((flags & 1) > 0)
{
i = 0;
}
if ((flags & 2) > 0)
{
i = 1;
}
if ((flags & 4) > 0)
{
i = 2;
}
tex.axis = (short)i;
if (tex.type == LWID.ID_IMAP)
{
tex.imap.axis = i;
}
else
{
tex.proc.axis = i;
}
if ((flags & 8) > 0)
{
tex.tmap.coord_sys = 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 ID_TSIZ:
for (i = 0; i < 3; i++)
{
tex.tmap.size.val[i] = lwio.getF4(fp, ref flen);
}
break;
case ID_TCTR:
for (i = 0; i < 3; i++)
{
tex.tmap.center.val[i] = lwio.getF4(fp, ref flen);
}
break;
case ID_TFAL:
for (i = 0; i < 3; i++)
{
tex.tmap.falloff.val[i] = lwio.getF4(fp, ref flen);
}
break;
case ID_TVEL:
for (i = 0; i < 3; i++)
{
v[i] = lwio.getF4(fp, ref flen);
}
tex.tmap.center.eindex = add_tvel(tex.tmap.center.val, v, env, ref nenvs);
break;
case ID_TCLR:
if (tex.type == LWID.ID_PROC)
{
for (i = 0; i < 3; i++)
{
tex.proc.value[i] = lwio.getU1(fp, ref flen) / 255.0f;
}
}
break;
case ID_TVAL:
tex.proc.value[0] = lwio.getI2(fp, ref flen) / 256.0f;
break;
case ID_TAMP:
if (tex.type == LWID.ID_IMAP)
{
tex.imap.amplitude.val = lwio.getF4(fp, ref flen);
}
break;
case ID_TIMG:
s = lwio.getS0(fp, ref flen);
tex.imap.cindex = add_clip(ref s, clip, ref nclips);
break;
case ID_TAAS:
tex.imap.aa_strength = lwio.getF4(fp, ref flen);
tex.imap.aas_flags = 1;
break;
case ID_TREF:
tex.tmap.ref_object = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen), sz);
break;
case ID_TOPC:
tex.opacity.val = lwio.getF4(fp, ref flen);
break;
case ID_TFP0:
if (tex.type == LWID.ID_IMAP)
{
tex.imap.wrapw.val = lwio.getF4(fp, ref flen);
}
break;
case ID_TFP1:
if (tex.type == LWID.ID_IMAP)
{
tex.imap.wraph.val = lwio.getF4(fp, ref flen);
}
break;
case LWID.ID_SHDR:
shdr = new lwPlugin();
shdr.name = BitConverter.ToString(lwio.getbytes(fp, sz, ref flen));
surf.shader.AddLast(shdr);
surf.nshaders++;
break;
case ID_SDAT:
shdr.data = lwio.getbytes(fp, sz, ref flen);
break;
default:
break;
}
/* error while reading current subchunk? */
if (flen < 0 || flen > sz)
{
goto Fail;
}
/* skip unread parts of the current subchunk */
if (flen < sz)
{
fp.BaseStream.Seek(sz - flen, SeekOrigin.Current);
}
/* end of the SURF chunk? */
if (cksize <= fp.BaseStream.Position - pos)
{
break;
}
/* get the next subchunk header */
flen = 0;
id = lwio.getU4(fp, ref flen);
sz = lwio.getU2(fp, ref flen);
if (6 != flen)
{
goto Fail;
}
}
return(surf);
Fail:
//if ( surf ) lwFreeSurface( surf );
return(null);
}
/// <summary>
/// Create a new texture for BTEX, CTEX, etc. subchunks.
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
static lwTexture get_texture(string s)
{
lwTexture tex = new lwTexture();
tex.tmap.size.val[0] =
tex.tmap.size.val[1] =
tex.tmap.size.val[2] = 1.0f;
tex.opacity.val = 1.0f;
tex.enabled = 1;
if (s.Contains("Image Map"))
{
tex.type = LWID.ID_IMAP;
if (s.Contains("Planar")) tex.imap.projection = 0;
else if (s.Contains("Cylindrical")) tex.imap.projection = 1;
else if (s.Contains("Spherical")) tex.imap.projection = 2;
else if (s.Contains("Cubic")) tex.imap.projection = 3;
else if (s.Contains("Front")) tex.imap.projection = 4;
tex.imap.aa_strength = 1.0f;
tex.imap.amplitude.val = 1.0f;
}
else
{
tex.type = LWID.ID_PROC;
tex.proc.name = s;
}
return tex;
}