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标题: [求助] artoolkit为什么用opengl渲染没有效果 [打印本页]

作者: huanglgln 时间: 2011-8-5 11:35 标题: artoolkit为什么用opengl渲染没有效果

GLfloat no_mat[]={0.0,0.0,0.0,1.0};
GLfloat mat_diffuse[]={0.6,0.6,0.6,1.0};

GLfloat mat_specular[]={0.8,0.8,0.8,1.0};

GLfloat no_shininess[]={50.0};

GLfloat mat_emission[]={0.1,0.1,0.1,0.0};

GLfloat light_position[]  = {1.0,1.0,1.0,0.0};

GLfloat light_ambient[]  = {0.0,0.0,0.0,1.0};

GLfloat light_diffuse[]  = {1.0,1.0,1.0,1.0};

GLfloat light_specular[]  = {1.0,1.0,1.0,1.0};

GLfloat light1_position[]  = {-20.0,20.0,10.0,1.0};

GLfloat light1_ambient[]  = {0.1,0.1,0.1,1.0};

GLfloat light1_diffuse[]  = {1.0,1.0,1.0,1.0};

GLfloat light1_specular[]  = {1.0,1.0,1.0,1.0};

GLfloat light1_direction[]  = {2.0,-2.0,-1.0};

glPushMatrix();

//
glShadeModel(GL_SMOOTH);

glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);//启用光源

glEnable(GL_DEPTH_TEST);//启用深度测试
//
glEnable(GL_COLOR_MATERIAL);////开启光线跟踪

glLightfv(GL_LIGHT0, GL_POSITION, light_position);//光的位置
glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient); //光的环境强度

glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);//光的散射强度

glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);//光的镜面强度

glEnable(GL_LIGHT1);//启用光源(聚光灯)
//
glEnable(GL_DEPTH_TEST);
glLightfv(GL_LIGHT1, GL_AMBIENT, light1_ambient); //光的环境强度

glLightfv(GL_LIGHT1, GL_DIFFUSE, light1_diffuse);//光的散射强度

glLightfv(GL_LIGHT1, GL_SPECULAR, light1_specular);//光的镜面强度

glLightfv(GL_LIGHT1, GL_POSITION, light1_position);//光的位置
glLightf(GL_LIGHT1, GL_CONSTANT_ATTENUATION, 1.5);//常量衰减因子1.0

glLightf(GL_LIGHT1, GL_LINEAR_ATTENUATION, 0.1);//线性衰减因子0.0

glLightf(GL_LIGHT1, GL_QUADRATIC_ATTENUATION, 0.0);//二次衰减因子0.0

glLightf(GL_LIGHT1, GL_SPOT_CUTOFF, 45.0);//聚光灯的切角180.0

glLightfv(GL_LIGHT1, GL_SPOT_DIRECTION, light1_direction);//聚光灯方向的向量

glLightf(GL_LIGHT1, GL_SPOT_EXPONENT, 2.0);//聚光指数0.0

glEnable(GL_LIGHTING);//启用材质

glMaterialfv(GL_FRONT, GL_AMBIENT, no_mat);//材料的环境颜色

glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);//材料的散射颜色

glMaterialfv(GL_FRONT, GL_SPECULAR,mat_specular);//材料的镜面颜色

glMaterialfv(GL_FRONT, GL_SHININESS,no_shininess);//镜面指数

glMaterialfv(GL_FRONT, GL_EMISSION,mat_emission);//材料的发射颜色

glutSolidSphere(10.0,50,50);

glPopMatrix();
同样的代码在artoolkit中效果
[attach]200[/attach]
而在其他opengl程序中效果
[attach]201[/attach]

作者: x68251 时间: 2011-8-5 14:07

好像是没有光照。。。。。。。。。。。

作者: huanglgln 时间: 2011-8-5 16:26

有光照，材质、光照的代码是一样的，但效果就是不一样。。。。

作者: huanglgln 时间: 2011-8-5 16:30

没有光照的效果
[img][/img]

作者: huanglgln 时间: 2011-8-5 16:37

[attach]202[/attach]

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