//--------------------------------------------------------------
static void release(ofLight & light){
int id = light.getLightID();
if(id==-1) return;
bool lastRef=false;
if(getIds().find(id)!=getIds().end()){
getIds()[id]--;
if(getIds()[id]==0){
lastRef=true;
getIds().erase(id);
}
}else{
ofLog(OF_LOG_WARNING,"ofLight: releasing id not found, this shouldn't be happening releasing anyway");
lastRef=true;
}
if(lastRef){
light.setAmbientColor(ofColor(0,0,0,255));
if(id>0){
light.setDiffuseColor(ofColor(0,0,0,255));
light.setSpecularColor(ofColor(0,0,0,255));
}else{
light.setDiffuseColor(ofColor(255,255,255,255));
light.setSpecularColor(ofColor(255,255,255,255));
}
GLfloat cc[] = {0,0,1, 0};
glLightfv(GL_LIGHT0 + id, GL_POSITION, cc);
light.disable();
getActiveLights()[id] = false;
}
}
//----------------------------------------
void ofLight::setup() {
if(glIndex==-1){
bool bLightFound = false;
// search for the first free block
for(int i=0; i<OF_MAX_LIGHTS; i++) {
if(getActiveLights()[i] == false) {
glIndex = i;
retain(glIndex);
bLightFound = true;
break;
}
}
if( !bLightFound ){
ofLog(OF_LOG_ERROR, "ofLight : Trying to create too many lights: " + ofToString(glIndex));
}
if(bLightFound) {
// run this the first time, since it was not found before //
onPositionChanged();
setAmbientColor( getAmbientColor() );
setDiffuseColor( getDiffuseColor() );
setSpecularColor( getSpecularColor() );
setAttenuation( getAttenuationConstant(), getAttenuationLinear(), getAttenuationQuadratic() );
if(getIsSpotlight()) {
setSpotlightCutOff(getSpotlightCutOff());
setSpotConcentration(getSpotConcentration());
}
if(getIsSpotlight() || getIsDirectional()) {
onOrientationChanged();
}
}
}
}
//--------------------------------------------------------------
static void retain(int id){
if(id==-1) return;
getActiveLights()[id] = true;
if(getIds().find(id)!=getIds().end()){
getIds()[id]++;
}else{
getIds()[id]=1;
}
}
//----------------------------------------
void ofLight::enable() {
if(glIndex==-1){
// search for the first free block
for(int i=0; i<OF_MAX_LIGHTS; i++) {
if(getActiveLights()[i] == false) {
glIndex = i;
retain(glIndex);
enable();
return;
}
}
}
if(glIndex!=-1) {
ofEnableLighting();
glEnable(GL_LIGHT0 + glIndex);
}else{
ofLog(OF_LOG_ERROR, "Trying to create too many lights: " + ofToString(glIndex));
}
}
//----------------------------------------
void ofLight::enable() {
if(glIndex==-1){
bool bLightFound = false;
// search for the first free block
for(int i=0; i<OF_MAX_LIGHTS; i++) {
if(getActiveLights()[i] == false) {
glIndex = i;
retain(glIndex);
bLightFound = true;
break;
}
}
if( !bLightFound ){
ofLog(OF_LOG_ERROR, "ofLight : Trying to create too many lights: " + ofToString(glIndex));
}
}
ofEnableLighting();
glEnable(GL_LIGHT0 + glIndex);
}
//--------------------------------------------------------------
static void setInactiveLight( int id ) {
if (id < 0 || id >= OF_MAX_LIGHTS) return;
getActiveLights()[id] = false;
}
