219 lines
6 KiB
C++
219 lines
6 KiB
C++
// material.cxx -- class to handle material properties
|
|
//
|
|
// Written by Curtis Olson, started May 1998.
|
|
//
|
|
// Copyright (C) 1998 Curtis L. Olson - curt@me.umn.edu
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation; either version 2 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful, but
|
|
// WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
//
|
|
// $Id$
|
|
// (Log is kept at end of this file)
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_WINDOWS_H
|
|
# include <windows.h>
|
|
#endif
|
|
|
|
#include <GL/glut.h>
|
|
#include <XGL/xgl.h>
|
|
|
|
#include <Debug/fg_debug.h>
|
|
#include <Include/fg_zlib.h>
|
|
#include <Main/options.hxx>
|
|
|
|
#include "material.hxx"
|
|
|
|
|
|
// global material management class
|
|
fgMATERIAL_MGR material_mgr;
|
|
|
|
|
|
// Constructor
|
|
fgMATERIAL::fgMATERIAL ( void ) {
|
|
}
|
|
|
|
|
|
// Sorting routines
|
|
void fgMATERIAL::init_sort_list( void );
|
|
|
|
|
|
int fgMATERIAL::append_sort_list( fgFRAGMENT *object );
|
|
|
|
|
|
// Destructor
|
|
fgMATERIAL::~fgMATERIAL ( void ) {
|
|
}
|
|
|
|
|
|
// Constructor
|
|
fgMATERIAL_MGR::fgMATERIAL_MGR ( void ) {
|
|
}
|
|
|
|
|
|
// Load a library of material properties
|
|
int fgMATERIAL_MGR::load_lib ( void ) {
|
|
fgMATERIAL m;
|
|
fgOPTIONS *o;
|
|
char material_name[256];
|
|
char path[256], fgpath[256];
|
|
char line[256], *line_ptr;
|
|
fgFile f;
|
|
|
|
o = ¤t_options;
|
|
|
|
// build the path name to the material db
|
|
path[0] = '\0';
|
|
strcat(path, o->fg_root);
|
|
strcat(path, "/Scenery/");
|
|
strcat(path, "Materials");
|
|
strcpy(fgpath, path);
|
|
strcat(fgpath, ".gz");
|
|
|
|
// first try "path.gz"
|
|
if ( (f = fgopen(fgpath, "rb")) == NULL ) {
|
|
// next try "path"
|
|
if ( (f = fgopen(path, "rb")) == NULL ) {
|
|
fgPrintf(FG_GENERAL, FG_EXIT, "Cannot open file: %s\n", path);
|
|
}
|
|
}
|
|
|
|
while ( fggets(f, line, 250) != NULL ) {
|
|
// printf("%s", line);
|
|
|
|
// strip leading white space
|
|
line_ptr = line;
|
|
while ( ( (line_ptr[0] == ' ') || (line_ptr[0] == '\t') ) &&
|
|
(line_ptr[0] != '\n') ) {
|
|
line_ptr++;
|
|
|
|
}
|
|
|
|
if ( line_ptr[0] == '#' ) {
|
|
// ignore lines that start with '#'
|
|
} else if ( line_ptr[0] == '\n' ) {
|
|
// ignore blank lines
|
|
} else if ( strstr(line_ptr, "{") ) {
|
|
// start of record
|
|
m.ambient[0] = m.ambient[1] = m.ambient[2] = m.ambient[3] = 0.0;
|
|
m.diffuse[0] = m.diffuse[1] = m.diffuse[2] = m.diffuse[3] = 0.0;
|
|
m.specular[0] = m.specular[1] = m.specular[2] = m.specular[3] = 0.0;
|
|
m.emissive[0] = m.emissive[1] = m.emissive[2] = m.emissive[3] = 0.0;
|
|
|
|
material_name[0] = '\0';
|
|
sscanf(line_ptr, "%s", material_name);
|
|
if ( ! strlen(material_name) ) {
|
|
fgPrintf( FG_TERRAIN, FG_INFO, "Bad material name in '%s'\n",
|
|
line );
|
|
}
|
|
printf(" Loading material = %s\n", material_name);
|
|
} else if ( strncmp(line_ptr, "texture", 7) == 0 ) {
|
|
line_ptr += 7;
|
|
while ( ( (line_ptr[0] == ' ') || (line_ptr[0] == '\t') ||
|
|
(line_ptr[0] == '=') ) &&
|
|
(line_ptr[0] != '\n') ) {
|
|
line_ptr++;
|
|
}
|
|
// printf("texture name = %s\n", line_ptr);
|
|
sscanf(line_ptr, "%s\n", m.texture_name);
|
|
} else if ( strncmp(line_ptr, "ambient", 7) == 0 ) {
|
|
line_ptr += 7;
|
|
while ( ( (line_ptr[0] == ' ') || (line_ptr[0] == '\t') ||
|
|
(line_ptr[0] == '=') ) &&
|
|
(line_ptr[0] != '\n') ) {
|
|
line_ptr++;
|
|
}
|
|
sscanf( line_ptr, "%f %f %f %f",
|
|
&m.ambient[0], &m.ambient[1], &m.ambient[2], &m.ambient[3]);
|
|
} else if ( strncmp(line_ptr, "diffuse", 7) == 0 ) {
|
|
line_ptr += 7;
|
|
while ( ( (line_ptr[0] == ' ') || (line_ptr[0] == '\t') ||
|
|
(line_ptr[0] == '=') ) &&
|
|
(line_ptr[0] != '\n') ) {
|
|
line_ptr++;
|
|
}
|
|
sscanf( line_ptr, "%f %f %f %f",
|
|
&m.diffuse[0], &m.diffuse[1], &m.diffuse[2], &m.diffuse[3]);
|
|
} else if ( strncmp(line_ptr, "specular", 8) == 0 ) {
|
|
line_ptr += 8;
|
|
while ( ( (line_ptr[0] == ' ') || (line_ptr[0] == '\t') ||
|
|
(line_ptr[0] == '=') ) &&
|
|
(line_ptr[0] != '\n') ) {
|
|
line_ptr++;
|
|
}
|
|
sscanf( line_ptr, "%f %f %f %f",
|
|
&m.specular[0], &m.specular[1],
|
|
&m.specular[2], &m.specular[3]);
|
|
} else if ( strncmp(line_ptr, "emissive", 8) == 0 ) {
|
|
line_ptr += 8;
|
|
while ( ( (line_ptr[0] == ' ') || (line_ptr[0] == '\t') ||
|
|
(line_ptr[0] == '=') ) &&
|
|
(line_ptr[0] != '\n') ) {
|
|
line_ptr++;
|
|
}
|
|
sscanf( line_ptr, "%f %f %f %f",
|
|
&m.emissive[0], &m.emissive[1],
|
|
&m.emissive[2], &m.emissive[3]);
|
|
} else if ( line_ptr[0] == '}' ) {
|
|
// end of record, lets add this one to the list
|
|
material_mgr.material_map[material_name] = m;
|
|
} else {
|
|
fgPrintf(FG_TERRAIN, FG_INFO,
|
|
"Unknown line in material properties file\n");
|
|
}
|
|
}
|
|
|
|
fgclose(f);
|
|
|
|
return(1);
|
|
}
|
|
|
|
|
|
// Initialize the transient list of fragments for each material property
|
|
void fgMATERIAL_MGR::init_transient_material_lists( void ) {
|
|
map < string, fgMATERIAL, less<string> > :: iterator mapcurrent =
|
|
material_mgr.material_map.begin();
|
|
map < string, fgMATERIAL, less<string> > :: iterator maplast =
|
|
material_mgr.material_map.end();
|
|
|
|
while ( mapcurrent != maplast ) {
|
|
// (char *)key = (*mapcurrent).first;
|
|
// (fgMATERIAL)value = (*mapcurrent).second;
|
|
(*mapcurrent).second.list_size = 0;
|
|
|
|
*mapcurrent++;
|
|
}
|
|
}
|
|
|
|
|
|
// Destructor
|
|
fgMATERIAL_MGR::~fgMATERIAL_MGR ( void ) {
|
|
}
|
|
|
|
|
|
// $Log$
|
|
// Revision 1.3 1998/06/05 22:39:53 curt
|
|
// Working on sorting by, and rendering by material properties.
|
|
//
|
|
// Revision 1.2 1998/06/01 17:56:20 curt
|
|
// Incremental additions to material.cxx (not fully functional)
|
|
// Tweaked vfc_ratio math to avoid divide by zero.
|
|
//
|
|
// Revision 1.1 1998/05/30 01:56:45 curt
|
|
// Added material.cxx material.hxx
|
|
//
|