我在写一个程序,我有一个跳舞在0,-3
的小男人。我把他染成了白色,现在我试图让一个迪斯科般的场景变成现实,我创建了一个蓝色和红色的灯光,并试图通过使用计数器和if
和else
声明来替代它们。这是在我的renderscene
OpenGL:打开和关闭灯光
float ambientlight[] = {0.0,0.0,1.0,1.0};
float diffuselight[] = {1.0,1.0,1.0,1.0};
float specular[] = {1.0,1.0,1.0,1.0};
float lightpos[] = {0.0,10.0,0.0,1.0}; //light 1
float specref[]={1.0,1.0,1.0,1.0};
float spotdir[]={0.0,-10.0,0.0};
float rectX[6][5], rectY[6][5], rectZ[6][5];
float ambientlight2[] = {1.0,0.0,0.0,1.0};
float diffuselight2[] = {1.0,1.0,1.0,1.0};
float specular2[] = {1.0,1.0,1.0,1.0};
float lightpos2[] = {0.0,10.0,0.0,1.0}; //light 2
float specref2[]={1.0,1.0,1.0,1.0};
float spotdir2[]={0.0,-10.0,0.0};
glColor3f(1.0,1.0,1.0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glViewport(0,0,540,440);
glOrtho(-7.0,7.0,-7.0,7.0,5.0,-5.0);
glEnable(GL_LIGHTING);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if (counterForLights % 2 == 0) //if counter even
{
glLightfv(GL_LIGHT0, GL_POSITION,lightpos);
glLightfv(GL_LIGHT0,GL_AMBIENT,ambientlight);
glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuselight);
glLightfv(GL_LIGHT0,GL_SPECULAR, specular);
glLightf(GL_LIGHT0,GL_SPOT_CUTOFF,10.0); //light 1
glLightf(GL_LIGHT0,GL_SPOT_EXPONENT,15.0);
glLightfv(GL_LIGHT0,GL_SPOT_DIRECTION,spotdir);
glEnable(GL_LIGHT0);
counterForLights++;
}
else //if counter odd
{
glLightfv(GL_LIGHT1,GL_AMBIENT,ambientlight2);
glLightfv(GL_LIGHT1,GL_DIFFUSE,diffuselight2);
glLightfv(GL_LIGHT1,GL_SPECULAR, specular2);
glLightf(GL_LIGHT1,GL_SPOT_CUTOFF,10.0);
glLightf(GL_LIGHT1,GL_SPOT_EXPONENT,15.0); //light2
glLightfv(GL_LIGHT1,GL_SPOT_DIRECTION,spotdir2);
glEnable(GL_LIGHT1);
counterForLights++;
}
counterForLights
是一个全局变量等于1
。它运行,但不会显示红灯,只是蓝灯。我要去哪里的任何想法都是错误的?
此外,如果您需要了解我的代码,请告诉我! :)
就像我能说的那样,关于第二盏灯的唯一“红色”是环境部分。由于在典型的材料中,环境系数非常低,所以其影响很小。 – derhass