/* _ase_load:
* loads a 3dsmax ase model file.
*/
static picoModel_t *_ase_load( PM_PARAMS_LOAD )
{
picoModel_t *model;
picoParser_t *p;
char lastNodeName[ 1024 ];
aseVertex_t* vertices = NULL;
aseTexCoord_t* texcoords = NULL;
aseColor_t* colors = NULL;
aseFace_t* faces = NULL;
int numVertices = 0;
int numFaces = 0;
int numTextureVertices = 0;
int numTextureVertexFaces = 0;
int numColorVertices = 0;
int numColorVertexFaces = 0;
int vertexId = 0;
int currentVertexFace=0;
int currentVertexIndex=0;
int counter=0;
int submodel=0;
aseMaterial_t* materials = NULL;
#ifdef DEBUG_PM_ASE
clock_t start, finish;
double elapsed;
start = clock();
#endif
/* helper */
#define _ase_error_return(m) \
{ \
_pico_printf( PICO_ERROR,"%s in ASE, line %d.",m,p->curLine); \
_pico_free_parser( p ); \
PicoFreeModel( model ); \
return NULL; \
}
/* create a new pico parser */
p = _pico_new_parser( (picoByte_t *)buffer,bufSize );
if (p == NULL) return NULL;
/* create a new pico model */
model = PicoNewModel();
if (model == NULL)
{
_pico_free_parser( p );
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( model, frameNum );
PicoSetModelName( model, fileName );
PicoSetModelFileName( model, fileName );
/* initialize some stuff */
memset( lastNodeName,0,sizeof(lastNodeName) );
/* parse ase model file */
while( 1 )
{
/* get first token on line */
if (_pico_parse_first( p ) == NULL)
break;
/* we just skip empty lines */
if (p->token == NULL || !strlen( p->token ))
continue;
/* we skip invalid ase statements */
if (p->token[0] != '*' && p->token[0] != '{' && p->token[0] != '}')
{
_pico_parse_skip_rest( p );
continue;
}
/* remember node name */
if (!_pico_stricmp(p->token,"*node_name"))
{
/* read node name */
char *ptr = _pico_parse( p,0 );
if (ptr == NULL)
_ase_error_return("Node name parse error");
/* remember node name */
strncpy( lastNodeName,ptr,sizeof(lastNodeName) );
}
/* model mesh (originally contained within geomobject) */
else if (!_pico_stricmp(p->token,"*mesh"))
{
/* finish existing surface */
_ase_submit_triangles(model, materials, vertices, texcoords, colors, faces, numFaces,numVertices,submodel++);
_pico_free(faces);
_pico_free(vertices);
_pico_free(texcoords);
_pico_free(colors);
}
else if (!_pico_stricmp(p->token,"*mesh_numvertex"))
{
if (!_pico_parse_int( p, &numVertices) )
_ase_error_return("Missing MESH_NUMVERTEX value");
vertices = _pico_calloc(numVertices, sizeof(aseVertex_t));
currentVertexIndex=0;
}
else if (!_pico_stricmp(p->token,"*mesh_numfaces"))
{
if (!_pico_parse_int( p, &numFaces) )
_ase_error_return("Missing MESH_NUMFACES value");
faces = _pico_calloc(numFaces, sizeof(aseFace_t));
}
else if (!_pico_stricmp(p->token,"*mesh_numtvertex"))
{
if (!_pico_parse_int( p, &numTextureVertices) )
_ase_error_return("Missing MESH_NUMTVERTEX value");
texcoords = _pico_calloc(numTextureVertices, sizeof(aseTexCoord_t));
}
else if (!_pico_stricmp(p->token,"*mesh_numtvfaces"))
{
if (!_pico_parse_int( p, &numTextureVertexFaces) )
_ase_error_return("Missing MESH_NUMTVFACES value");
}
else if (!_pico_stricmp(p->token,"*mesh_numcvertex"))
{
if (!_pico_parse_int( p, &numColorVertices) )
_ase_error_return("Missing MESH_NUMCVERTEX value");
colors = _pico_calloc(numColorVertices, sizeof(aseColor_t));
memset( colors, 255, numColorVertices * sizeof( aseColor_t ) ); /* ydnar: force colors to white initially */
}
else if (!_pico_stricmp(p->token,"*mesh_numcvfaces"))
{
if (!_pico_parse_int( p, &numColorVertexFaces) )
_ase_error_return("Missing MESH_NUMCVFACES value");
}
/* mesh material reference. this usually comes at the end of */
/* geomobjects after the mesh blocks. we must assume that the */
/* new mesh was already created so all we can do here is assign */
/* the material reference id (shader index) now. */
else if (!_pico_stricmp(p->token,"*material_ref"))
{
int mtlId;
/* get the material ref (0..n) */
if (!_pico_parse_int( p,&mtlId) )
_ase_error_return("Missing material reference ID");
{
int i = 0;
/* fix up all of the aseFaceList in the surface to point to the parent material */
/* we've already saved off their subMtl */
for(; i < numFaces; ++i)
{
faces[i].materialId = mtlId;
}
}
}
/* model mesh vertex */
else if (!_pico_stricmp(p->token,"*mesh_vertex"))
{
int index;
if( numVertices == 0 )
_ase_error_return("Vertex parse error");
/* get vertex data (orig: index +y -x +z) */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Vertex parse error");
if (!_pico_parse_vec( p,vertices[index].xyz ))
_ase_error_return("Vertex parse error");
vertices[index].id = vertexId++;
}
else if (!_pico_stricmp(p->token,"*mesh_facenormal"))
{
//Grab the faceindex for the next vertex normals.
if( numVertices == 0 )
_ase_error_return("Vertex parse error (facenormals)");
if (!_pico_parse_int( p,¤tVertexFace ))
_ase_error_return("Vertex parse error");
if (!_pico_parse_vec( p,faces[currentVertexFace].facenormal ))
_ase_error_return("Vertex parse error");
}
/* model mesh vertex normal */
else if (!_pico_stricmp(p->token,"*mesh_vertexnormal"))
{
int index;
if( numVertices == 0 )
_ase_error_return("Vertex parse error");
/* get vertex data (orig: index +y -x +z) */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Vertex parse error");
//^^ Index is 'wrong' in .ase models. they reference the same vert index with multiple normals..
// I've tried, this is a lost cause. Use the SG's
//
/*
if (!_pico_parse_vec( p,vertices[counter].normal ))
_ase_error_return("Vertex parse error");
vertices[counter].faceid=index;
counter++;
*/
}
/* model mesh face */
else if (!_pico_stricmp(p->token,"*mesh_normals"))
{
// counter=0; //part of the above vertex normals fix
}
/* model mesh face */
else if (!_pico_stricmp(p->token,"*mesh_face"))
{
picoIndex_t indexes[3];
int index;
if( numFaces == 0 )
_ase_error_return("Face parse error");
/* get face index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Face parse error");
/* get 1st vertex index */
_pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[0] ))
_ase_error_return("Face parse error");
/* get 2nd vertex index */
_pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[1] ))
_ase_error_return("Face parse error");
/* get 3rd vertex index */
_pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[2] ))
_ase_error_return("Face parse error");
/* parse to the subMaterial ID */
while ( 1 )
{
if (!_pico_parse (p,0)) /* EOL */
{
break;
}
if (!_pico_stricmp (p->token,"*MESH_SMOOTHING" ))
{
int total=0;
char* point;
char* start;
_pico_parse(p,0);
point=p->token;
start=point;
faces[index].smoothingGroup=0;
//Super dodgy comma delimited string parse
while (*point<'A')
{
if (*point<=32 || *point==',')
{
total=atoi(start);
if (total!=0)
{
faces[index].smoothingGroup+=1<<total;
}
start=point+1;
}
point++;
}
}
if (!_pico_stricmp (p->token,"*MESH_MTLID" ))
{
_pico_parse_int ( p , &faces[index].subMaterialId );
}
}
faces[index].materialId = 0;
faces[index].indices[0] = indexes[2];
faces[index].indices[1] = indexes[1];
faces[index].indices[2] = indexes[0];
}
/* model texture vertex */
else if (!_pico_stricmp(p->token,"*mesh_tvert"))
{
int index;
if( numVertices == 0 )
_ase_error_return("Vertex parse error");
/* get uv vertex index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("UV vertex parse error");
/* get uv vertex s */
if (!_pico_parse_float( p,&texcoords[index].texcoord[0] ))
_ase_error_return("UV vertex parse error");
/* get uv vertex t */
if (!_pico_parse_float( p,&texcoords[index].texcoord[1] ))
_ase_error_return("UV vertex parse error");
/* ydnar: invert t */
texcoords[index].texcoord[ 1 ] = 1.0f - texcoords[index].texcoord[ 1 ];
}
/* ydnar: model mesh texture face */
else if( !_pico_stricmp( p->token, "*mesh_tface" ) )
{
picoIndex_t indexes[3];
int index;
if( numFaces == 0 )
_ase_error_return("Texture face parse error");
/* get face index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Texture face parse error");
/* get 1st vertex index */
if (!_pico_parse_int( p,&indexes[0] ))
_ase_error_return("Texture face parse error");
/* get 2nd vertex index */
if (!_pico_parse_int( p,&indexes[1] ))
_ase_error_return("Texture face parse error");
/* get 3rd vertex index */
if (!_pico_parse_int( p,&indexes[2] ))
_ase_error_return("Texture face parse error");
faces[index].indices[3] = indexes[2];
faces[index].indices[4] = indexes[1];
faces[index].indices[5] = indexes[0];
}
/* model color vertex */
else if (!_pico_stricmp(p->token,"*mesh_vertcol"))
{
int index;
float colorInput;
if( numVertices == 0 )
_ase_error_return("Color Vertex parse error");
/* get color vertex index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Color vertex parse error");
/* get R component */
if (!_pico_parse_float( p,&colorInput ))
_ase_error_return("Color vertex parse error");
colors[index].color[0] = (picoByte_t)(colorInput * 255);
/* get G component */
if (!_pico_parse_float( p,&colorInput ))
_ase_error_return("Color vertex parse error");
colors[index].color[1] = (picoByte_t)(colorInput * 255);
/* get B component */
if (!_pico_parse_float( p,&colorInput ))
_ase_error_return("Color vertex parse error");
colors[index].color[2] = (picoByte_t)(colorInput * 255);
/* leave alpha alone since we don't get any data from the ASE format */
colors[index].color[3] = 255;
/* 27 hack, red as alpha */
colors[index].color[3]=colors[index].color[0];
colors[index].color[0]=255;
colors[index].color[1]=255;
colors[index].color[2]=255;
}
/* model color face */
else if (!_pico_stricmp(p->token,"*mesh_cface"))
{
picoIndex_t indexes[3];
int index;
if( numFaces == 0 )
_ase_error_return("Face parse error");
/* get face index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Face parse error");
/* get 1st cvertex index */
// _pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[0] ))
_ase_error_return("Face parse error");
/* get 2nd cvertex index */
// _pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[1] ))
_ase_error_return("Face parse error");
/* get 3rd cvertex index */
// _pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[2] ))
_ase_error_return("Face parse error");
faces[index].indices[6] = indexes[2];
faces[index].indices[7] = indexes[1];
faces[index].indices[8] = indexes[0];
}
/* model material */
else if( !_pico_stricmp( p->token, "*material" ) )
{
aseSubMaterial_t* subMaterial = NULL;
picoShader_t *shader;
int level = 1, index;
char materialName[ 1024 ];
float transValue = 0.0f, shineValue = 1.0f;
picoColor_t ambientColor, diffuseColor, specularColor;
char *mapname = NULL;
int subMtlId, subMaterialLevel = -1;
/* get material index */
_pico_parse_int( p,&index );
/* check brace */
if (!_pico_parse_check(p,1,"{"))
_ase_error_return("Material missing opening brace");
/* parse material block */
while( 1 )
{
/* get next token */
if (_pico_parse(p,1) == NULL) break;
if (!strlen(p->token)) continue;
/* handle levels */
if (p->token[0] == '{') level++;
if (p->token[0] == '}') level--;
if (!level) break;
if( level == subMaterialLevel )
{
/* set material name */
_pico_first_token( materialName );
PicoSetShaderName( shader, materialName);
/* set shader's transparency */
PicoSetShaderTransparency( shader,transValue );
/* set shader's ambient color */
PicoSetShaderAmbientColor( shader,ambientColor );
/* set diffuse alpha to transparency */
diffuseColor[3] = (picoByte_t)( transValue * 255.0 );
/* set shader's diffuse color */
PicoSetShaderDiffuseColor( shader,diffuseColor );
/* set shader's specular color */
PicoSetShaderSpecularColor( shader,specularColor );
/* set shader's shininess */
PicoSetShaderShininess( shader,shineValue );
/* set material map name */
PicoSetShaderMapName( shader, mapname );
subMaterial = _ase_add_submaterial( &materials, index, subMtlId, shader );
subMaterialLevel = -1;
}
/* parse submaterial index */
if (!_pico_stricmp(p->token,"*submaterial"))
{
/* allocate new pico shader */
_pico_parse_int( p , &subMtlId );
shader = PicoNewShader( model );
if (shader == NULL)
{
PicoFreeModel( model );
return NULL;
}
subMaterialLevel = level;
}
/* parse material name */
else if (!_pico_stricmp(p->token,"*material_name"))
{
char* name = _pico_parse(p,0);
if ( name == NULL)
_ase_error_return("Missing material name");
strcpy ( materialName , name );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse material transparency */
else if (!_pico_stricmp(p->token,"*material_transparency"))
{
/* get transparency value from ase */
if (!_pico_parse_float( p,&transValue ))
_ase_error_return("Material transparency parse error");
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse material shininess */
else if (!_pico_stricmp(p->token,"*material_shine"))
{
/* remark:
* - not sure but instead of '*material_shine' i might
* need to use '*material_shinestrength' */
/* get shine value from ase */
if (!_pico_parse_float( p,&shineValue ))
_ase_error_return("Material shine parse error");
/* scale ase shine range 0..1 to pico range 0..127 */
shineValue *= 128.0;
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse ambient material color */
else if (!_pico_stricmp(p->token,"*material_ambient"))
{
picoVec3_t vec;
/* get r,g,b float values from ase */
if (!_pico_parse_vec( p,vec ))
_ase_error_return("Material color parse error");
/* setup 0..255 range color values */
ambientColor[ 0 ] = (int)( vec[ 0 ] * 255.0 );
ambientColor[ 1 ] = (int)( vec[ 1 ] * 255.0 );
ambientColor[ 2 ] = (int)( vec[ 2 ] * 255.0 );
ambientColor[ 3 ] = (int)( 255 );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse diffuse material color */
else if (!_pico_stricmp(p->token,"*material_diffuse"))
{
picoVec3_t vec;
/* get r,g,b float values from ase */
if (!_pico_parse_vec( p,vec ))
_ase_error_return("Material color parse error");
/* setup 0..255 range color */
diffuseColor[ 0 ] = (int)( vec[ 0 ] * 255.0 );
diffuseColor[ 1 ] = (int)( vec[ 1 ] * 255.0 );
diffuseColor[ 2 ] = (int)( vec[ 2 ] * 255.0 );
diffuseColor[ 3 ] = (int)( 255 );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse specular material color */
else if (!_pico_stricmp(p->token,"*material_specular"))
{
picoVec3_t vec;
/* get r,g,b float values from ase */
if (!_pico_parse_vec( p,vec ))
_ase_error_return("Material color parse error");
/* setup 0..255 range color */
specularColor[ 0 ] = (int)( vec[ 0 ] * 255 );
specularColor[ 1 ] = (int)( vec[ 1 ] * 255 );
specularColor[ 2 ] = (int)( vec[ 2 ] * 255 );
specularColor[ 3 ] = (int)( 255 );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* material diffuse map */
else if (!_pico_stricmp(p->token,"*map_diffuse") )
{
int sublevel = 0;
/* parse material block */
while( 1 )
{
/* get next token */
if (_pico_parse(p,1) == NULL) break;
if (!strlen(p->token)) continue;
/* handle levels */
if (p->token[0] == '{') sublevel++;
if (p->token[0] == '}') sublevel--;
if (!sublevel) break;
/* parse diffuse map bitmap */
if (!_pico_stricmp(p->token,"*bitmap"))
{
char* name = _pico_parse(p,0);
if (name == NULL)
_ase_error_return("Missing material map bitmap name");
mapname = _pico_alloc ( strlen ( name ) + 1 );
strcpy ( mapname, name );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
}
}
/* end map_diffuse block */
}
/* end material block */
if( subMaterial == NULL )
{
/* allocate new pico shader */
shader = PicoNewShader( model );
if (shader == NULL)
{
PicoFreeModel( model );
return NULL;
}
/* set material name */
PicoSetShaderName( shader,materialName );
/* set shader's transparency */
PicoSetShaderTransparency( shader,transValue );
/* set shader's ambient color */
PicoSetShaderAmbientColor( shader,ambientColor );
/* set diffuse alpha to transparency */
diffuseColor[3] = (picoByte_t)( transValue * 255.0 );
/* set shader's diffuse color */
PicoSetShaderDiffuseColor( shader,diffuseColor );
/* set shader's specular color */
PicoSetShaderSpecularColor( shader,specularColor );
/* set shader's shininess */
PicoSetShaderShininess( shader,shineValue );
/* set material map name */
PicoSetShaderMapName( shader, mapname );
/* extract shadername from bitmap path */
if(mapname != NULL)
{
char* p = mapname;
/* convert to shader-name format */
{
/* unix-style path separators */
char* s = mapname;
for(; *s != '\0'; ++s)
{
if(*s == '\\')
{
*s = '/';
}
}
}
{
/* remove extension */
char* last_period = strrchr(p, '.');
if(last_period != NULL)
{
*last_period = '\0';
}
}
/* find game root */
for(; *p != '\0'; ++p)
{
if(_pico_strnicmp(p, "quake", 5) == 0 || _pico_strnicmp(p, "doom", 4) == 0)
{
break;
}
}
/* root-relative */
for(; *p != '\0'; ++p)
{
if(*p == '/')
{
++p;
break;
}
}
/* game-relative */
for(; *p != '\0'; ++p)
{
if(*p == '/')
{
++p;
break;
}
}
if(*p != '\0')
{
/* set material name */
PicoSetShaderName( shader,p );
}
}
/* this is just a material with 1 submaterial */
subMaterial = _ase_add_submaterial( &materials, index, 0, shader );
}
/* ydnar: free mapname */
if( mapname != NULL )
_pico_free( mapname );
} // !_pico_stricmp ( "*material" )
/* skip unparsed rest of line and continue */
_pico_parse_skip_rest( p );
}
/* ydnar: finish existing surface */
_ase_submit_triangles(model, materials, vertices, texcoords, colors, faces, numFaces,numVertices,submodel++);
_pico_free(faces);
_pico_free(vertices);
_pico_free(texcoords);
_pico_free(colors);
#ifdef DEBUG_PM_ASE
_ase_print_materials(materials);
finish = clock();
elapsed = (double)(finish - start) / CLOCKS_PER_SEC;
_pico_printf( PICO_NORMAL, "Loaded model in in %-.2f second(s)\n", elapsed );
#endif //DEBUG_PM_ASE
_ase_free_materials(&materials);
_pico_free_parser( p );
/* return allocated pico model */
return model;
}
/* _ms3d_load:
* loads a milkshape3d model file.
*/
static picoModel_t *_ms3d_load( PM_PARAMS_LOAD ){
picoModel_t *model;
unsigned char *bufptr, *bufptr0;
int shaderRefs[ MS3D_MAX_GROUPS ];
int numGroups;
int numMaterials;
// unsigned char *ptrToGroups;
int numVerts;
unsigned char *ptrToVerts;
int numTris;
unsigned char *ptrToTris;
int i,k,m;
/* create new pico model */
model = PicoNewModel();
if ( model == NULL ) {
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( model, frameNum );
PicoSetModelName( model, fileName );
PicoSetModelFileName( model, fileName );
bufptr0 = bufptr = (picoByte_t*) _pico_alloc( bufSize );
memcpy( bufptr, buffer, bufSize );
/* skip header */
bufptr += sizeof( TMsHeader );
/* get number of vertices */
bufptr = GetWord( bufptr,&numVerts );
ptrToVerts = bufptr;
#ifdef DEBUG_PM_MS3D
printf( "NumVertices: %d\n",numVerts );
#endif
/* swap verts */
for ( i = 0; i < numVerts; i++ )
{
TMsVertex *vertex;
vertex = (TMsVertex *)bufptr;
bufptr += sizeof( TMsVertex );
vertex->xyz[ 0 ] = _pico_little_float( vertex->xyz[ 0 ] );
vertex->xyz[ 1 ] = _pico_little_float( vertex->xyz[ 1 ] );
vertex->xyz[ 2 ] = _pico_little_float( vertex->xyz[ 2 ] );
#ifdef DEBUG_PM_MS3D_EX_
printf( "Vertex: x: %f y: %f z: %f\n",
msvd[i]->vertex[0],
msvd[i]->vertex[1],
msvd[i]->vertex[2] );
#endif
}
/* get number of triangles */
bufptr = GetWord( bufptr,&numTris );
ptrToTris = bufptr;
#ifdef DEBUG_PM_MS3D
printf( "NumTriangles: %d\n",numTris );
#endif
/* swap tris */
for ( i = 0; i < numTris; i++ )
{
TMsTriangle *triangle;
triangle = (TMsTriangle *)bufptr;
bufptr += sizeof( TMsTriangle );
triangle->flags = _pico_little_short( triangle->flags );
/* run through all tri verts */
for ( k = 0; k < 3; k++ )
{
/* swap tex coords */
triangle->s[ k ] = _pico_little_float( triangle->s[ k ] );
triangle->t[ k ] = _pico_little_float( triangle->t[ k ] );
/* swap fields */
triangle->vertexIndices[ k ] = _pico_little_short( triangle->vertexIndices[ k ] );
triangle->vertexNormals[ 0 ][ k ] = _pico_little_float( triangle->vertexNormals[ 0 ][ k ] );
triangle->vertexNormals[ 1 ][ k ] = _pico_little_float( triangle->vertexNormals[ 1 ][ k ] );
triangle->vertexNormals[ 2 ][ k ] = _pico_little_float( triangle->vertexNormals[ 2 ][ k ] );
/* check for out of range indices */
if ( triangle->vertexIndices[ k ] >= numVerts ) {
_pico_printf( PICO_ERROR,"Vertex %d index %d out of range (%d, max %d)",i,k,triangle->vertexIndices[k],numVerts - 1 );
PicoFreeModel( model );
_pico_free( bufptr0 );
return NULL; /* yuck */
}
}
}
/* get number of groups */
bufptr = GetWord( bufptr,&numGroups );
// ptrToGroups = bufptr;
#ifdef DEBUG_PM_MS3D
printf( "NumGroups: %d\n",numGroups );
#endif
/* run through all groups in model */
for ( i = 0; i < numGroups && i < MS3D_MAX_GROUPS; i++ )
{
picoSurface_t *surface;
TMsGroup *group;
group = (TMsGroup *)bufptr;
bufptr += sizeof( TMsGroup );
/* we ignore hidden groups */
if ( group->flags & MS3D_HIDDEN ) {
bufptr += ( group->numTriangles * 2 ) + 1;
continue;
}
/* forced null term of group name */
group->name[ 31 ] = '\0';
/* create new pico surface */
surface = PicoNewSurface( model );
if ( surface == NULL ) {
PicoFreeModel( model );
_pico_free( bufptr0 );
return NULL;
}
/* do surface setup */
PicoSetSurfaceType( surface,PICO_TRIANGLES );
PicoSetSurfaceName( surface,group->name );
/* process triangle indices */
for ( k = 0; k < group->numTriangles; k++ )
{
TMsTriangle *triangle;
unsigned int triangleIndex;
/* get triangle index */
bufptr = GetWord( bufptr,(int *)&triangleIndex );
/* get ptr to triangle data */
triangle = (TMsTriangle *)( ptrToTris + ( sizeof( TMsTriangle ) * triangleIndex ) );
/* run through triangle vertices */
for ( m = 0; m < 3; m++ )
{
TMsVertex *vertex;
unsigned int vertexIndex;
picoVec2_t texCoord;
/* get ptr to vertex data */
vertexIndex = triangle->vertexIndices[ m ];
vertex = (TMsVertex *)( ptrToVerts + ( sizeof( TMsVertex ) * vertexIndex ) );
/* store vertex origin */
PicoSetSurfaceXYZ( surface,vertexIndex,vertex->xyz );
/* store vertex color */
PicoSetSurfaceColor( surface,0,vertexIndex,white );
/* store vertex normal */
PicoSetSurfaceNormal( surface,vertexIndex,triangle->vertexNormals[ m ] );
/* store current face vertex index */
PicoSetSurfaceIndex( surface,( k * 3 + ( 2 - m ) ),(picoIndex_t)vertexIndex );
/* get texture vertex coord */
texCoord[ 0 ] = triangle->s[ m ];
texCoord[ 1 ] = -triangle->t[ m ]; /* flip t */
/* store texture vertex coord */
PicoSetSurfaceST( surface,0,vertexIndex,texCoord );
}
}
/* store material */
shaderRefs[ i ] = *bufptr++;
#ifdef DEBUG_PM_MS3D
printf( "Group %d: '%s' (%d tris)\n",i,group->name,group->numTriangles );
#endif
}
/* get number of materials */
bufptr = GetWord( bufptr,&numMaterials );
#ifdef DEBUG_PM_MS3D
printf( "NumMaterials: %d\n",numMaterials );
#endif
/* run through all materials in model */
for ( i = 0; i < numMaterials; i++ )
{
picoShader_t *shader;
picoColor_t ambient,diffuse,specular;
TMsMaterial *material;
int k;
material = (TMsMaterial *)bufptr;
bufptr += sizeof( TMsMaterial );
/* null term strings */
material->name [ 31 ] = '\0';
material->texture [ 127 ] = '\0';
material->alphamap[ 127 ] = '\0';
/* ltrim strings */
_pico_strltrim( material->name );
_pico_strltrim( material->texture );
_pico_strltrim( material->alphamap );
/* rtrim strings */
_pico_strrtrim( material->name );
_pico_strrtrim( material->texture );
_pico_strrtrim( material->alphamap );
/* create new pico shader */
shader = PicoNewShader( model );
if ( shader == NULL ) {
PicoFreeModel( model );
_pico_free( bufptr0 );
return NULL;
}
/* scale shader colors */
for ( k = 0; k < 4; k++ )
{
ambient [ k ] = (picoByte_t) ( material->ambient[ k ] * 255 );
diffuse [ k ] = (picoByte_t) ( material->diffuse[ k ] * 255 );
specular[ k ] = (picoByte_t) ( material->specular[ k ] * 255 );
}
/* set shader colors */
PicoSetShaderAmbientColor( shader,ambient );
PicoSetShaderDiffuseColor( shader,diffuse );
PicoSetShaderSpecularColor( shader,specular );
/* set shader transparency */
PicoSetShaderTransparency( shader,material->transparency );
/* set shader shininess (0..127) */
PicoSetShaderShininess( shader,material->shininess );
/* set shader name */
PicoSetShaderName( shader,material->name );
/* set shader texture map name */
PicoSetShaderMapName( shader,material->texture );
#ifdef DEBUG_PM_MS3D
printf( "Material %d: '%s' ('%s','%s')\n",i,material->name,material->texture,material->alphamap );
#endif
}
/* assign shaders to surfaces */
for ( i = 0; i < numGroups && i < MS3D_MAX_GROUPS; i++ )
{
picoSurface_t *surface;
picoShader_t *shader;
/* sanity check */
if ( shaderRefs[ i ] >= MS3D_MAX_MATERIALS ||
shaderRefs[ i ] < 0 ) {
continue;
}
/* get surface */
surface = PicoGetModelSurface( model,i );
if ( surface == NULL ) {
continue;
}
/* get shader */
shader = PicoGetModelShader( model,shaderRefs[ i ] );
if ( shader == NULL ) {
continue;
}
/* assign shader */
PicoSetSurfaceShader( surface,shader );
#ifdef DEBUG_PM_MS3D
printf( "Mapped: %d ('%s') to %d (%s)\n",
shaderRefs[i],shader->name,i,surface->name );
#endif
}
/* return allocated pico model */
_pico_free( bufptr0 );
return model;
// return NULL;
}
static int _obj_mtl_load (picoModel_t *model)
{
picoParser_t *p;
picoByte_t *mtlBuffer;
int mtlBufSize;
char *fileName;
/* sanity checks */
if (model == NULL || model->fileName == NULL)
return 0;
/* skip if we have a zero length model file name */
if (!strlen(model->fileName))
return 0;
/* helper */
#define _obj_mtl_error_return \
{ \
_pico_free_parser( p ); \
_pico_free_file( mtlBuffer ); \
_pico_free( fileName ); \
return 0; \
}
/* alloc copy of model file name */
fileName = _pico_clone_alloc(model->fileName);
if (fileName == NULL)
return 0;
/* change extension of model file to .mtl */
_pico_setfext(fileName, "mtl");
/* load .mtl file contents */
_pico_load_file(fileName, &mtlBuffer, &mtlBufSize);
/* check result */
if (mtlBufSize == 0)
return 1; /* file is empty: no error */
if (mtlBufSize < 0)
return 0; /* load failed: error */
/* create a new pico parser */
p = _pico_new_parser(mtlBuffer, mtlBufSize);
if (p == NULL)
_obj_mtl_error_return;
/* doo teh .mtl parse */
while (1) {
/* get next token in material file */
if (_pico_parse(p, 1) == NULL)
break;
#if 0
/* skip empty lines */
if (p->token == NULL || !strlen(p->token))
continue;
/* skip comment lines */
if (p->token[0] == '#') {
_pico_parse_skip_rest(p);
continue;
}
/* new material */
if (!_pico_stricmp(p->token, "newmtl")) {
picoShader_t *shader;
char *name;
/* get material name */
name = _pico_parse(p, 0);
/* validate material name */
if (name == NULL || !strlen(name)) {
_pico_printf(PICO_ERROR, "Missing material name in MTL, line %d.", p->curLine);
_obj_mtl_error_return;
}
/* create a new pico shader */
shader = PicoNewShader(model);
if (shader == NULL)
_obj_mtl_error_return;
/* set shader name */
PicoSetShaderName(shader, name);
/* assign pointer to current shader */
curShader = shader;
}
/* diffuse map name */
else if (!_pico_stricmp(p->token, "map_kd")) {
char *mapName;
/* pointer to current shader must be valid */
if (curShader == NULL)
_obj_mtl_error_return;
/* get material's diffuse map name */
mapName = _pico_parse(p, 0);
/* validate map name */
if (mapName == NULL || !strlen(mapName)) {
_pico_printf(PICO_ERROR, "Missing material map name in MTL, line %d.", p->curLine);
_obj_mtl_error_return;
}
/* set shader map name */
PicoSetShaderMapName(shader, mapName);
}
/* dissolve factor (pseudo transparency 0..1) */
/* where 0 means 100% transparent and 1 means opaque */
else if (!_pico_stricmp(p->token, "d")) {
picoByte_t *diffuse;
float value;
/* get dissolve factor */
if (!_pico_parse_float(p, &value))
_obj_mtl_error_return;
/* set shader transparency */
PicoSetShaderTransparency(curShader, value);
/* get shader's diffuse color */
diffuse = PicoGetShaderDiffuseColor(curShader);
/* set diffuse alpha to transparency */
diffuse[3] = (picoByte_t) (value * 255.0);
/* set shader's new diffuse color */
PicoSetShaderDiffuseColor(curShader, diffuse);
}
/* shininess (phong specular component) */
else if (!_pico_stricmp(p->token, "ns")) {
/* remark:
* - well, this is some major obj spec fuckup once again. some
* apps store this in 0..1 range, others use 0..100 range,
* even others use 0..2048 range, and again others use the
* range 0..128, some even use 0..1000, 0..200, 400..700,
* honestly, what's up with the 3d app coders? happens when
* you smoke too much weed i guess. -sea
*/
float value;
/* pointer to current shader must be valid */
if (curShader == NULL)
_obj_mtl_error_return;
/* get totally screwed up shininess (a random value in fact ;) */
if (!_pico_parse_float(p, &value))
_obj_mtl_error_return;
/* okay, there is no way to set this correctly, so we simply */
/* try to guess a few ranges (most common ones i have seen) */
/* assume 0..2048 range */
if (value > 1000)
value = 128.0 * (value / 2048.0);
/* assume 0..1000 range */
else if (value > 200)
value = 128.0 * (value / 1000.0);
/* assume 0..200 range */
else if (value > 100)
value = 128.0 * (value / 200.0);
/* assume 0..100 range */
else if (value > 1)
value = 128.0 * (value / 100.0);
/* assume 0..1 range */
else {
value *= 128.0;
}
/* negative shininess is bad (yes, i have seen it...) */
if (value < 0.0)
value = 0.0;
/* set the pico shininess value in range 0..127 */
/* geez, .obj is such a mess... */
PicoSetShaderShininess(curShader, value);
}
/* kol0r ambient (wut teh fuk does "ka" stand for?) */
else if (!_pico_stricmp(p->token, "ka")) {
picoColor_t color;
picoVec3_t v;
/* pointer to current shader must be valid */
if (curShader == NULL)
_obj_mtl_error_return;
/* get color vector */
if (!_pico_parse_vec(p, v))
_obj_mtl_error_return;
/* scale to byte range */
color[0] = (picoByte_t) (v[0] * 255);
color[1] = (picoByte_t) (v[1] * 255);
color[2] = (picoByte_t) (v[2] * 255);
color[3] = (picoByte_t) (255);
/* set ambient color */
PicoSetShaderAmbientColor(curShader, color);
}
/* kol0r diffuse */
else if (!_pico_stricmp(p->token, "kd")) {
picoColor_t color;
picoVec3_t v;
/* pointer to current shader must be valid */
if (curShader == NULL)
_obj_mtl_error_return;
/* get color vector */
if (!_pico_parse_vec(p, v))
_obj_mtl_error_return;
/* scale to byte range */
color[0] = (picoByte_t) (v[0] * 255);
color[1] = (picoByte_t) (v[1] * 255);
color[2] = (picoByte_t) (v[2] * 255);
color[3] = (picoByte_t) (255);
/* set diffuse color */
PicoSetShaderDiffuseColor(curShader, color);
}
/* kol0r specular */
else if (!_pico_stricmp(p->token, "ks")) {
picoColor_t color;
picoVec3_t v;
/* pointer to current shader must be valid */
if (curShader == NULL)
_obj_mtl_error_return;
/* get color vector */
if (!_pico_parse_vec(p, v))
_obj_mtl_error_return;
/* scale to byte range */
color[0] = (picoByte_t) (v[0] * 255);
color[1] = (picoByte_t) (v[1] * 255);
color[2] = (picoByte_t) (v[2] * 255);
color[3] = (picoByte_t) (255);
/* set specular color */
PicoSetShaderSpecularColor(curShader, color);
}
#endif
/* skip rest of line */
_pico_parse_skip_rest(p);
}
/* free parser, file buffer, and file name */
_pico_free_parser(p);
_pico_free_file(mtlBuffer);
_pico_free(fileName);
/* return with success */
return 1;
}
