小编ett*_*tan的帖子

我有点卡住我的灯光.我的光可以点亮网格,但它不会照亮我的地面.

这是我的一些代码

光:

glEnable(GL_LIGHT0);

glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1.0f);
glEnable(GL_COLOR_MATERIAL);


GLfloat ambient_light0[] = { 0.5f, 0.5f, 0.5f, 1.0f };
GLfloat position_light0[] = { 0.0f, 8.0f, 0.0f, 0.9f };


GLfloat spotDirection_light0[] = {0.0, -1.0, 0.0 };
GLfloat specularLightcolor[] = { 1.0, 1.0, 1.0, 1.0 };
glLightfv( GL_LIGHT0, GL_POSITION, position_light0 );
glLightfv( GL_LIGHT0, GL_SPOT_DIRECTION, spotDirection_light0 );
glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.5);

glLightfv( GL_LIGHT0, GL_AMBIENT, ambient_light0 );
glLightfv(GL_LIGHT0, GL_SPECULAR, specularLightcolor);

glLightf( GL_LIGHT0, GL_SPOT_CUTOFF, 60.0f );
glLightf( GL_LIGHT0, GL_SPOT_EXPONENT, 50.0f );

地面:

void drawGround(int id) {

glEnable(GL_TEXTURE_2D);

glEnable(GL_COLOR_MATERIAL);



getTexture(id); …