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Add support for additional runway light colors and intensities.

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curt 2002-10-16 22:39:08 +00:00
parent 8aae366757
commit 66bd17bfa3
1 changed files with 390 additions and 4 deletions
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394
src/Objects/matlib.cxx
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@ -106,6 +106,44 @@ static int gen_test_light_map() {
}
// generate standard colored directional light environment texture map
static int gen_standard_dir_light_map( int r, int g, int b, int alpha ) {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = r;
env_map[i][j][1] = g;
env_map[i][j][2] = b;
env_map[i][j][3] = (int)(bright * alpha);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the directional white light environment texture map
static int gen_white_light_map() {
const int env_tex_res = 32;
@ -121,9 +159,235 @@ static int gen_white_light_map() {
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 255;
env_map[i][j][1] = 255;
env_map[i][j][2] = 255;
env_map[i][j][0] = 235;
env_map[i][j][1] = 235;
env_map[i][j][2] = 215; // slight yellow tint
env_map[i][j][3] = (int)(bright * 255);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the medium intensity directional white light environment
// texture map
static int gen_white_light_medium_map() {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 235;
env_map[i][j][1] = 235;
env_map[i][j][2] = 215; // slight yellow tint
env_map[i][j][3] = (int)(bright * 205);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the low intensity directional white light environment
// texture map
static int gen_white_light_low_map() {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 235;
env_map[i][j][1] = 235;
env_map[i][j][2] = 215; // slight yellow tint
env_map[i][j][3] = (int)(bright * 155);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the directional yellow light environment texture map
static int gen_yellow_light_map() {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 235;
env_map[i][j][1] = 235;
env_map[i][j][2] = 20;
env_map[i][j][3] = (int)(bright * 255);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the medium intensity directional yellow light environment
// texture map
static int gen_yellow_light_medium_map() {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 235;
env_map[i][j][1] = 235;
env_map[i][j][2] = 20;
env_map[i][j][3] = (int)(bright * 205);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the low intensity directional yellow light environment
// texture map
static int gen_yellow_light_low_map() {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 235;
env_map[i][j][1] = 235;
env_map[i][j][2] = 20;
env_map[i][j][3] = (int)(bright * 155);
}
}
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( 1, &tex_name );
glBindTexture( GL_TEXTURE_2D, tex_name );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, env_tex_res, env_tex_res, 0,
GL_RGBA, GL_UNSIGNED_BYTE, env_map);
return tex_name;
}
// generate the directional red light environment texture map
static int gen_red_light_map() {
const int env_tex_res = 32;
int half_res = env_tex_res / 2;
unsigned char env_map[env_tex_res][env_tex_res][4];
GLuint tex_name;
for ( int i = 0; i < env_tex_res; ++i ) {
for ( int j = 0; j < env_tex_res; ++j ) {
double x = (i - half_res) / (double)half_res;
double y = (j - half_res) / (double)half_res;
double dist = sqrt(x*x + y*y);
if ( dist > 1.0 ) { dist = 1.0; }
double bright = cos( dist * SGD_PI_2 );
if ( bright < 0.3 ) { bright = 0.3; }
env_map[i][j][0] = 235;
env_map[i][j][1] = 20;
env_map[i][j][2] = 20;
env_map[i][j][3] = (int)(bright * 255);
}
}
@ -241,7 +505,10 @@ bool FGMaterialLib::load( const string& mpath ) {
gnd_lights->disable( GL_LIGHTING );
matlib["GROUND_LIGHTS"] = new FGNewMat(gnd_lights);
GLuint tex_name;
// hard coded runway white light state
tex_name = gen_standard_dir_light_map( 235, 235, 215, 255 );
ssgSimpleState *rwy_white_lights = new ssgSimpleState();
rwy_white_lights->ref();
rwy_white_lights->disable( GL_LIGHTING );
@ -254,13 +521,132 @@ bool FGMaterialLib::load( const string& mpath ) {
rwy_white_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_white_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_white_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_white_lights->setTexture( gen_white_light_map() );
rwy_white_lights->setTexture( tex_name );
matlib["RWY_WHITE_LIGHTS"] = new FGNewMat(rwy_white_lights);
// For backwards compatibility ... remove someday
matlib["RUNWAY_LIGHTS"] = new FGNewMat(rwy_white_lights);
matlib["RWY_LIGHTS"] = new FGNewMat(rwy_white_lights);
// end of backwards compatitibilty
// hard coded runway medium intensity white light state
tex_name = gen_standard_dir_light_map( 235, 235, 215, 205 );
ssgSimpleState *rwy_white_medium_lights = new ssgSimpleState();
rwy_white_medium_lights->ref();
rwy_white_medium_lights->disable( GL_LIGHTING );
rwy_white_medium_lights->enable ( GL_CULL_FACE ) ;
rwy_white_medium_lights->enable( GL_TEXTURE_2D );
rwy_white_medium_lights->enable( GL_BLEND );
rwy_white_medium_lights->enable( GL_ALPHA_TEST );
rwy_white_medium_lights->enable( GL_COLOR_MATERIAL );
rwy_white_medium_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_white_medium_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_white_medium_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_white_medium_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_white_medium_lights->setTexture( tex_name );
matlib["RWY_WHITE_MEDIUM_LIGHTS"] = new FGNewMat(rwy_white_medium_lights);
// hard coded runway low intensity white light state
tex_name = gen_standard_dir_light_map( 235, 235, 215, 155 );
ssgSimpleState *rwy_white_low_lights = new ssgSimpleState();
rwy_white_low_lights->ref();
rwy_white_low_lights->disable( GL_LIGHTING );
rwy_white_low_lights->enable ( GL_CULL_FACE ) ;
rwy_white_low_lights->enable( GL_TEXTURE_2D );
rwy_white_low_lights->enable( GL_BLEND );
rwy_white_low_lights->enable( GL_ALPHA_TEST );
rwy_white_low_lights->enable( GL_COLOR_MATERIAL );
rwy_white_low_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_white_low_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_white_low_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_white_low_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_white_low_lights->setTexture( tex_name );
matlib["RWY_WHITE_LOW_LIGHTS"] = new FGNewMat(rwy_white_low_lights);
// hard coded runway yellow light state
tex_name = gen_standard_dir_light_map( 235, 235, 20, 255 );
ssgSimpleState *rwy_yellow_lights = new ssgSimpleState();
rwy_yellow_lights->ref();
rwy_yellow_lights->disable( GL_LIGHTING );
rwy_yellow_lights->enable ( GL_CULL_FACE ) ;
rwy_yellow_lights->enable( GL_TEXTURE_2D );
rwy_yellow_lights->enable( GL_BLEND );
rwy_yellow_lights->enable( GL_ALPHA_TEST );
rwy_yellow_lights->enable( GL_COLOR_MATERIAL );
rwy_yellow_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_yellow_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_yellow_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_yellow_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_yellow_lights->setTexture( tex_name );
matlib["RWY_YELLOW_LIGHTS"] = new FGNewMat(rwy_yellow_lights);
// hard coded runway medium intensity yellow light state
tex_name = gen_standard_dir_light_map( 235, 235, 20, 205 );
ssgSimpleState *rwy_yellow_medium_lights = new ssgSimpleState();
rwy_yellow_medium_lights->ref();
rwy_yellow_medium_lights->disable( GL_LIGHTING );
rwy_yellow_medium_lights->enable ( GL_CULL_FACE ) ;
rwy_yellow_medium_lights->enable( GL_TEXTURE_2D );
rwy_yellow_medium_lights->enable( GL_BLEND );
rwy_yellow_medium_lights->enable( GL_ALPHA_TEST );
rwy_yellow_medium_lights->enable( GL_COLOR_MATERIAL );
rwy_yellow_medium_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_yellow_medium_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_yellow_medium_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_yellow_medium_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_yellow_medium_lights->setTexture( tex_name );
matlib["RWY_YELLOW_MEDIUM_LIGHTS"] = new FGNewMat(rwy_yellow_medium_lights);
// hard coded runway low intensity yellow light state
tex_name = gen_standard_dir_light_map( 235, 235, 20, 155 );
ssgSimpleState *rwy_yellow_low_lights = new ssgSimpleState();
rwy_yellow_low_lights->ref();
rwy_yellow_low_lights->disable( GL_LIGHTING );
rwy_yellow_low_lights->enable ( GL_CULL_FACE ) ;
rwy_yellow_low_lights->enable( GL_TEXTURE_2D );
rwy_yellow_low_lights->enable( GL_BLEND );
rwy_yellow_low_lights->enable( GL_ALPHA_TEST );
rwy_yellow_low_lights->enable( GL_COLOR_MATERIAL );
rwy_yellow_low_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_yellow_low_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_yellow_low_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_yellow_low_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_yellow_low_lights->setTexture( tex_name );
matlib["RWY_YELLOW_LOW_LIGHTS"] = new FGNewMat(rwy_yellow_low_lights);
// hard coded runway red light state
tex_name = gen_standard_dir_light_map( 235, 20, 20, 255 );
ssgSimpleState *rwy_red_lights = new ssgSimpleState();
rwy_red_lights->ref();
rwy_red_lights->disable( GL_LIGHTING );
rwy_red_lights->enable ( GL_CULL_FACE ) ;
rwy_red_lights->enable( GL_TEXTURE_2D );
rwy_red_lights->enable( GL_BLEND );
rwy_red_lights->enable( GL_ALPHA_TEST );
rwy_red_lights->enable( GL_COLOR_MATERIAL );
rwy_red_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_red_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_red_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_red_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_red_lights->setTexture( tex_name );
matlib["RWY_RED_LIGHTS"] = new FGNewMat(rwy_red_lights);
// hard coded mediume intensity runway red light state
tex_name = gen_standard_dir_light_map( 235, 20, 20, 205 );
ssgSimpleState *rwy_red_medium_lights = new ssgSimpleState();
rwy_red_medium_lights->ref();
rwy_red_medium_lights->disable( GL_LIGHTING );
rwy_red_medium_lights->enable ( GL_CULL_FACE ) ;
rwy_red_medium_lights->enable( GL_TEXTURE_2D );
rwy_red_medium_lights->enable( GL_BLEND );
rwy_red_medium_lights->enable( GL_ALPHA_TEST );
rwy_red_medium_lights->enable( GL_COLOR_MATERIAL );
rwy_red_medium_lights->setMaterial ( GL_AMBIENT, 1.0, 1.0, 1.0, 1.0 );
rwy_red_medium_lights->setMaterial ( GL_DIFFUSE, 1.0, 1.0, 1.0, 1.0 );
rwy_red_medium_lights->setMaterial ( GL_SPECULAR, 0.0, 0.0, 0.0, 0.0 );
rwy_red_medium_lights->setMaterial ( GL_EMISSION, 0.0, 0.0, 0.0, 0.0 );
rwy_red_medium_lights->setTexture( tex_name );
matlib["RWY_RED_MEDIUM_LIGHTS"] = new FGNewMat(rwy_red_medium_lights);
// hard coded runway vasi light state
ssgSimpleState *rwy_vasi_lights = new ssgSimpleState();
rwy_vasi_lights->ref();