//----------------------------------------------------------
void ofClear(float brightness, float a){
renderer->clear(brightness, brightness, brightness, a);
}
//----------------------------------------------------------
void ofClear(const ofColor & c){
renderer->clear(c.r, c.g, c.b, c.a);
}
//----------------------------------------------------------
void ofClear(float r, float g, float b, float a){
renderer->clear(r,g,b,a);
}