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models: mdl fix texture coordinates

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This commit is contained in:
Denis Pauk 2024-03-15 23:14:07 +02:00
parent 25d60b826e
commit b6dc5ac8ad
2 changed files with 26 additions and 10 deletions
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6
README.md
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@ -36,14 +36,14 @@ Models support:
| Format | Original Game | Frame vertex | Comments |
| ------ | --------------- | ------------ | ------------------------------------------------- |
| mdl | Quake 1 | 8 bit | could be issues with textures |
| mdl | Quake 1 | 8 bit | unsupported grouped textures |
| md2 | Quake 2 | 8 bit | full support |
| md2 | Anachronox | 8/10/16 bit | incorrect normals, does no suport tagged surfaces |
| fm | Heretic 2 | 8 bit | show all meshes, |
| dkm | Daikatana DKM1 | 8 bit | unchecked with game |
| dkm | Daikatana DKM2 | 10 bit | unchecked with game, incorrect normals |
| md3 | Quake 3 | 16 bit | show all meshes, no tags support, unchecked, slow |
| md5 | Doom 3/Quake 4 | float | requires md2 for skins, show all meshes, slow |
| md3 | Quake 3 | 16 bit | show all meshes, no tags support, unchecked |
| md5 | Doom 3/Quake 4 | float | requires md2 for skins, show all meshes |
All models support only single texture for all meshes and only up to 255 frames.

30
src/client/refresh/files/models.c
View file

@ -650,7 +650,7 @@ Mod_LoadModel_MDL(const char *mod_name, const void *buffer, int modfilelen,
ofs_meshes = sizeof(*pheader); // just skip header and go
ofs_skins = ofs_meshes + num_meshes * sizeof(dmdxmesh_t);
ofs_st = ofs_skins + num_skins * MAX_SKINNAME;
ofs_tris = ofs_st + num_st * sizeof(dstvert_t);
ofs_tris = ofs_st + num_st * sizeof(dstvert_t) * 2;
ofs_glcmds = ofs_tris + num_tris * sizeof(dtriangle_t);
ofs_frames = ofs_glcmds + num_glcmds * sizeof(int);
ofs_imgbit = ofs_frames + framesize * frame_count;
@ -671,7 +671,7 @@ Mod_LoadModel_MDL(const char *mod_name, const void *buffer, int modfilelen,
pheader->num_meshes = num_meshes;
pheader->num_skins = num_skins;
pheader->num_xyz = num_xyz;
pheader->num_st = num_st;
pheader->num_st = num_st * 2;
pheader->num_tris = num_tris;
pheader->num_glcmds = num_glcmds;
pheader->num_imgbit = 8;
@ -715,13 +715,21 @@ Mod_LoadModel_MDL(const char *mod_name, const void *buffer, int modfilelen,
for(i = 0; i < num_st; i++)
{
int s, t;
/* Compute texture coordinates */
poutst[i].s = LittleLong(texcoords[i].s);
poutst[i].t = LittleLong(texcoords[i].t);
s = LittleLong(texcoords[i].s);
t = LittleLong(texcoords[i].t);
poutst[i * 2].s = s;
poutst[i * 2].t = t;
poutst[i * 2 + 1].s = s;
poutst[i * 2 + 1].t = t;
if (texcoords[i].onseam)
{
poutst[i].s += skinwidth * 0.5f; /* Backface */
/* Backface */
poutst[i * 2 + 1].s += skinwidth >> 1;
}
}
}
@ -742,8 +750,16 @@ Mod_LoadModel_MDL(const char *mod_name, const void *buffer, int modfilelen,
for (j = 0; j < 3; j++)
{
pouttri[i].index_xyz[j] = LittleLong(triangles[i].vertex[j]);
pouttri[i].index_st[j] = pouttri[i].index_xyz[j];
int index;
index = LittleLong(triangles[i].vertex[j]);
pouttri[i].index_xyz[j] = index;
pouttri[i].index_st[j] = index * 2;
if (!triangles[i].facesfront)
{
pouttri[i].index_st[j] ++;
}
}
}
}