c – OpenGL照明问题_C

概述当我在OpenGL中启用照明时,我无法看到我创建的对象.我有一个从3D Max导入的对象,照明工作正常,但我的场景的其余部分没有.我知道我需要指定法线但这似乎没有帮助.虽然如果我在我的display()函数中创建一个正常工作的简单多边形,但是在类的方法中创建并在display()函数中调用的其他多边形没有显示出来这是我的照明代码 glewInit();glClearColor(0.0,0.0 当我在OpenGL中启用照明时,我无法看到我创建的对象.我有一个从3D Max导入的对象,照明工作正常,但我的场景的其余部分没有.我知道我需要指定法线但这似乎没有帮助.虽然如果我在我的display()函数中创建一个正常工作的简单多边形,但是在类的方法中创建并在display()函数中调用的其他多边形没有显示出来

这是我的照明代码

glewInit();glClearcolor(0.0,0.0,0.0);glClear(GL_color_BUFFER_BIT) glShadeModel(GL_SMOOTH);//light position and colourGLfloat light_position[] = { 0.0,20.0,0.0 };GLfloat white_light[] = {0.8,0.8,0.0};GLfloat diff_light[] = {1.0,1.0,0.0};GLfloat spec_light[] = {1.0,0.0};gllightfv(GL_liGHT0,GL_AMBIENT,white_light);gllightfv(GL_liGHT0,GL_DIFFUSE,diff_light);gllightfv(GL_liGHT0,GL_specular,spec_light);gllightfv(GL_liGHT0,GL_position,light_position);//ambIEnt lightGLfloat ambIEnt[] = {0.3,0.3,0.3};glMaterialfv(GL_FRONT,ambIEnt);//diffuse material componentGLfloat diff[] = {0.6,0.6,0.6};glMaterialfv(GL_FRONT,diff);//specular material componentGLfloat WhiteSpec[] = {1,1,1};glMaterialfv(GL_FRONT,WhiteSpec);GLfloat shininess = 50;glMaterialf(GL_FRONT,GL_SHINInesS,shininess);//ENABLE liGHTING AND DEPTH TESTglEnable(GL_liGHTING);glEnable(GL_liGHT0);glEnable(GL_DEPTH_TEST);

这是我创造我的海洋的类方法

glcolor3f(0,1);glPushmatrix();//enable texturingglEnable(GL_TEXTURE_2D);    glEnable(GL_BLEND);glBlendFunc(GL_SRC_Alpha,GL_ONE_MINUS_SRC_Alpha);glBindTexture(GL_TEXTURE_2D,seaTex);glTexEnvf(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_REPLACE);for(int i = 0,k = 0; i < (getWIDth()/10); i++){    for(int j = 0; j < (getLength()/10); j++){        if(i >= Sea::waveLoc1 && i <= Sea::waveLoc1+Sea::sinArrayLength){            int nextK = k+1;            if(nextK == Sea::sinArrayLength){                nextK = 0;            }            if(i == Sea::waveLoc1+Sea::sinArrayLength){                //front of wave                glBegin(GL_polyGON);                    glnormal3f(0.0f,1.0f,0.0f);                       glTexCoord2f(0.0,1.0);glVertex3f(Sea::seaGrID[i][j].x,Sea::sinVals[nextK],Sea::seaGrID[i][j].z);                    glTexCoord2f(0.0,0.0);glVertex3f(Sea::seaGrID[i][j+1].x,Sea::seaGrID[i][j+1].z);                    glTexCoord2f(1.0,0.0);glVertex3f(Sea::seaGrID[i+1][j+1].x,Sea::seaGrID[i+1][j+1].y,Sea::seaGrID[i+1][j+1].z);                    glTexCoord2f(1.0,1.0);glVertex3f(Sea::seaGrID[i+1][j].x,Sea::seaGrID[i+1][j].y,Sea::seaGrID[i+1][j].z);                glEnd();            }else{                //rest of wave                glBegin(GL_polyGON);                    glnormal3f(0.0f,Sea::sinVals[k],Sea::seaGrID[i+1][j].z);                glEnd();            }        }else{            //draw flat sea            glBegin(GL_polyGON);                    glnormal3f(0.0f,0.0f);                glTexCoord2f(0.0,Sea::seaGrID[i+1][j].z);                glTexCoord2f(0.0,Sea::seaGrID[i+1][j+1].z);                glTexCoord2f(1.0,Sea::seaGrID[i][j+1].y,Sea::seaGrID[i][j+1].z);                glTexCoord2f(1.0,Sea::seaGrID[i][j].y,Sea::seaGrID[i][j].z);            glEnd();        }    }    //increment k if i is in the area of the wave    if(k < Sea::sinArrayLength-1 && (i >= Sea::waveLoc1 && i <= Sea::waveLoc1+Sea::sinArrayLength)){        k++;    }else if(k == Sea::sinArrayLength){        k = 0;    }}if(Sea::waveLoc1 < 100 && Sea::waveInc == Sea::waveSpeedlimiter){    Sea::waveLoc1 +=1;}else if(Sea::waveLoc1 >= 100){    Sea::waveLoc1 = 0;}//limits speed of waveif(Sea::waveInc < Sea::waveSpeedlimiter){    Sea::waveInc++;}else{    Sea::waveInc = 0;}//disable texturinggldisable(GL_BLEND);gldisable(GL_TEXTURE_2D);glPopMatrix();

然后在我的display()函数中调用它,如下所示

glClear(GL_color_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glMatrixMode(GL_PROJECTION);glLoadIDentity();gluPerspective(45.0f,(GLfloat)screenWIDth/(GLfloat)screenHeight,0.1f,1000.0f);glMatrixMode(GL_MODELVIEW);glLoadIDentity();camera.updateCameraposition(mouse_x,mouse_y,screenWIDth,screenHeight);sea.buildSeaPlane();scene.buildEdges();glPushmatrix(); glcolor3f(0,0);glTranslatef(0,20,200);model.speeddisplayFacenormals();glPopMatrix();glPushmatrix();plane.updatePlaneposition();glBegin(GL_polyGON);        glnormal3f(0.0f,0.0f);    glVertex3f(0,25,10);    glVertex3f(2,20);    glVertex3f(0,20);glEnd();glPopMatrix();glFlush();

知道为什么我看不到这个吗？

更新：

如果我禁用纹理,我可以看到我的大海.如何修复它以便我可以使用纹理和灯光？

更新2：

已将纹理更改为GL_MODulATE,但我还必须删除混合才能使其正常工作.我需要启用混合吗？

解决方法