[在OpenGL ES中启用光时材料会失去颜色

Question

启用光的那一刻，我就会失去色彩。我正在使用与OpenGL相同的代码，效果很好，但是我可以使用glColorMaterial（GL_FRONT_AND_BACK，GL_AMBIENT_AND_DIFFUSE）;就在glEnable（GL_COLOR_MATERIAL）;之前

我读过的文章提到您不需要在OpenGLES上使用该调用，我缺少一些调用序列吗？

我还应该补充一点，我正在为模型使用3ds文件，在我尝试添加光之前，它工作正常。

//draw function
//ofSetSmoothLighting()
   glShadeModel(GL_SMOOTH)

//ofEnableDepthTest();
glEnable(GL_DEPTH_TEST);

//ofEnableLighting();
    glEnable(GL_LIGHTING);
    glEnable(GL_COLOR_MATERIAL);
    glEnable(GL_NORMALIZE);

//pointLight.enable();
    //setup
        glLightfv(GL_LIGHT0 + /*my index*/, GL_AMBIENT, &/*first member of my aray*/);
        glLightfv(GL_LIGHT0 + /*my index*/, GL_DIFFUSE, &/*first member of my aray*/);
        glLightfv(GL_LIGHT0 + /*my index*/, GL_SPECULAR, &/*first member of my aray*/);

    //on position change
        glLightfv(GL_LIGHT0 + /*my index*/, GL_POSITION, cc);

    //on orientation
        glLightfv(GL_LIGHT0 + /*my index*/, GL_SPOT_DIRECTION, spot_direction);

    //setAttenuation(1.f,0.f,0.f);
        glLightf(GL_LIGHT0 + /*my index*/, GL_CONSTANT_ATTENUATION, attenuation_constant);
        glLightf(GL_LIGHT0 + /*my index*/, GL_LINEAR_ATTENUATION, attenuation_linear);
       glLightf(GL_LIGHT0 + /*my index*/, GL_QUADRATIC_ATTENUATION, attenuation_quadratic);

    //ofEnablelighting 
        glEnable(GL_LIGHTING);
        glEnable(GL_COLOR_MATERIAL);
        glEnable(GL_NORMALIZE);

    glEnable(GL_LIGHT0 + /*my index*/);

//modelDraw()

//for each mesh 
    glShadeModel(GL_SMOOTH);
    glBindTexture(GL_TEXTURE_2D, 0);

    glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, currentMaterial.getDiffuseColor());
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, currentMaterial.getAmbientColor());
    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, adjustedSpecular);
    glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 128.f * currentMaterial.getSpecularExponent());

    glEnableClientState( GL_VERTEX_ARRAY );
    glEnableClientState( GL_NORMAL_ARRAY );
    glVertexPointer( 3, GL_FLOAT, 0, &m_vertices[0] );
    glNormalPointer(GL_FLOAT, 0, &m_normals[0] );
    glDrawElements(GL_TRIANGLES, numFaces, GL_UNSIGNED_SHORT, &(materialsIter->second[0]));

    glDisableClientState( GL_VERTEX_ARRAY );
    glDisableClientState( GL_NORMAL_ARRAY );

//point light disable
    glDisable(GL_LIGHT0 + /*my index*/);

//ofDisableLighting()
    glDisable(GL_LIGHTING);
    glDisable(GL_NORMALIZE);

启用光的那一刻，我就会失去色彩。我正在使用与OpenGL相同的代码，效果很好，但是我可以使用glColorMaterial（GL_FRONT_AND_BACK，GL_AMBIENT_AND_DIFFUSE）;就在...

Answer 1

用于设置材料的多种呼叫组合没有多大意义。您可以在此处设置材质的环境色和漫反射色：