如何产生金属材质、玻璃材质等..

cactusnb

谁知道这些设置的具体参数，给贴一份看看，谢谢了

我是建了一个模型，想通过设置灯光&材质实现特殊物件效果

谢谢高手！

cactusnb

我要问的就是材质和光照设哪些数，能使得模型渲染出来像玻璃、像金属...

(不贴纹理！)

snhun

GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);

效果请看附件DEMO。
按X，Y，Z可以绕轴旋转。

cactusnb

snhun: Re: 如何产生金属材质、玻璃材质等..

GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specul...

很漂亮啊^_^
opengl实现的？能贴代码给我看看吧？谢谢

snhun

//设置光源
        glEnable(GL_LIGHT0);
        glEnable(GL_LIGHTING);

        GLfloat ambient[4]={1.0f,1.0f,1.0f,1.0f};//设置环境光
        glLightfv(GL_LIGHT0,GL_AMBIENT,ambient);

        GLfloat diffuse[4]={1.0f,1.0f,1.0f,1.0f};//设置反射光
        glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuse);

        GLfloat specular[4]={1.0f,1.0f,1.0f,1.0f};//设置镜面光
        glLightfv(GL_LIGHT0,GL_SPECULAR,specular);

        GLfloat position[4]={0.0f,0.0f,-3.0f,1.0f};
        glLightfv(GL_LIGHT0,GL_POSITION,position);//设置光源坐标
/*
        GLfloat spot_direction[4]={0.0f,0.0f,-1.0f};//聚光
        glLightfv(GL_LIGHT0,GL_SPOT_DIRECTION,spot_direction);
        glLightf(GL_LIGHT0,GL_SPOT_EXPONENT,8.0f);
        glLightf(GL_LIGHT0,GL_SPOT_CUTOFF,90.0f);

        glLightf(GL_LIGHT0,GL_CONSTANT_ATTENUATION,0.0f);//光照衰件因子常量c
        glLightf(GL_LIGHT0,GL_LINEAR_ATTENUATION,0.0f);//光照衰件因子常量l
        glLightf(GL_LIGHT0,GL_QUADRATIC_ATTENUATION,1.0f);//光照衰件因子常量q, light=1(c + ld + qdd)
*/
//设置材质
        GLfloat maanbient[]={0.2f,0.2f,0.2f,1.0f};
        GLfloat madiffuse[]={0.5f,0.5f,0.5f,1.0f};
        GLfloat maspecular[]={1.0f,1.0f,1.0f,1.0f};
        GLfloat maemi[4]={0.0f,0.0f,0.0f,1.0f};//幅射

        glMaterialfv(GL_FRONT,GL_AMBIENT,maanbient);
        glMaterialfv(GL_FRONT,GL_DIFFUSE,madiffuse);
        glMaterialfv(GL_FRONT,GL_SPECULAR,maspecular);
        glMaterialf(GL_FRONT,GL_SHININESS,128.0f);//亮度
        glMaterialfv(GL_FRONT,GL_EMISSION,maemi);//幅射

//光照模型
        GLfloat mma[4]={0.3f,0.3f,0.3f,0.3f};
        glLightModelfv(GL_LIGHT_MODEL_AMBIENT,mma);

        glLightModelf(GL_LIGHT_MODEL_LOCAL_VIEWER,GL_TRUE);

//自动法线
        glEnable(GL_AUTO_NORMAL);
        glEnable(GL_NORMALIZE);

Devil

http://www.azure.com.cn/article.asp?id=121


Material Types

Material
GL_AMBIENT
GL_DIFFUSE
GL_SPECULAR
GL_SHININESS

Brass
(0.329412, 0.223529, 0.027451, 1.0)
(0.780392, 0.568627, 0.113725, 1.0)
(0.992157, 0.941176, 0.807843, 1.0)
27.8974

Bronze
(0.2125, 0.1275, 0.054, 1.0)
(0.714, 0.4284, 0.18144, 1.0)
(0.393548, 0.271906, 0.166721, 1.0)
25.6

Polished Bronze
(0.25, 0.148, 0.06475, 1.0)
(0.4, 0.2368, 0.1036, 1.0)
(0.774597, 0.458561, 0.200621, 1.0)
76.8

Chrome
(0.25, 0.25, 0.25, 1.0)
(0.4, 0.4, 0.4, 1.0)
(0.774597, 0.774597, 0.774597, 1.0)
76.8

Copper
(0.19125, 0.0735, 0.0225, 1.0)
(0.7038, 0.27048, 0.0828, 1.0)
(0.256777, 0.137622, 0.086014, 1.0)
12.8

Polished Copper
(0.2295, 0.08825, 0.0275, 1.0)
(0.5508, 0.2118, 0.066, 1.0)
(0.580594, 0.223257, 0.0695701, 1.0)
51.2

Gold
(0.24725, 0.1995, 0.0745, 1.0)
(0.75164, 0.60648, 0.22648, 1.0)
(0.628281, 0.555802, 0.366065, 1.0)
51.2

Polished Gold
(0.24725, 0.2245, 0.0645, 1.0)
(0.34615, 0.3143, 0.0903, 1.0)
(0.797357, 0.723991, 0.208006, 1.0)
83.2

Pewter
(0.105882, 0.058824, 0.113725, 1.0)
(0.427451, 0.470588, 0.541176, 1.0)
(0.333333, 0.333333, 0.521569, 1.0)
9.84615

Silver
(0.19225, 0.19225, 0.19225, 1.0)
(0.50754, 0.50754, 0.50754, 1.0)
(0.508273, 0.508273, 0.508273, 1.0)
51.2

Polished Silver
(0.23125, 0.23125, 0.23125, 1.0)
(0.2775, 0.2775, 0.2775, 1.0)
(0.773911, 0.773911, 0.773911, 1.0)
89.6

Emerald
(0.0215, 0.1745, 0.0215, 0.55)
(0.07568, 0.61424, 0.07568, 0.55)
(0.633, 0.727811, 0.633, 0.55)
76.8

Jade
(0.135, 0.2225, 0.1575, 0.95)
(0.54, 0.89, 0.63, 0.95)
(0.316228, 0.316228, 0.316228, 0.95)
12.8

Obsidian
(0.05375, 0.05, 0.06625, 0.82)
(0.18275, 0.17, 0.22525, 0.82)
(0.332741, 0.328634, 0.346435, 0.82)
38.4

Pearl
(0.25, 0.20725, 0.20725, 0.922)
(1.0, 0.829, 0.829, 0.922)
(0.296648, 0.296648, 0.296648, 0.922)
11.264

Ruby
(0.1745, 0.01175, 0.01175, 0.55)
(0.61424, 0.04136, 0.04136, 0.55)
(0.727811, 0.626959, 0.626959, 0.55)
76.8

Turquoise
(0.1, 0.18725, 0.1745, 0.8)
(0.396, 0.74151, 0.69102, 0.8)
(0.297254, 0.30829, 0.306678, 0.8)
12.8

Black Plastic
(0.0, 0.0, 0.0, 1.0)
(0.01, 0.01, 0.01, 1.0)
(0.50, 0.50, 0.50, 1.0)
32.0

Black Rubber
(0.02, 0.02, 0.02, 1.0)
(0.01, 0.01, 0.01, 1.0)
(0.4, 0.4, 0.4, 1.0)
10.0

cactusnb

谢谢！

snhun: Re:如何产生金属材质、玻璃材质等..

//设置光源
        glEnable(GL_LIGHT0);
        glEnable(GL_LIGHTING);

        GLfloat ambient[4]={1.0f,1.0f,1.0f,1....

cactusnb

谢谢

Devil: Re:如何产生金属材质、玻璃材质等..

http://www.azure.com.cn/article.asp?id=121


Material Types

Material
GL_AMBIENT
GL_DIFFUSE
...