Support Texture+Light view mode

[m-7761]

I just noticed that the texture modes don't have the light that the flat/smooth modes have. Maybe it's a simple error, but surely someone's noticed this before?

[m-7761]

I don't know, I think the lights need tinkering. I found removing ambient from the material, and pushing diffuse up brought out some definition.

The values for these lights from the initialization code (initializeGL?) seem high. If they are overlapping that could go well over 1, causing textures to appear identical to their image files. I don't see anything that changes for texture mode. It's got to be a trick of the light.

    {
        GLfloat ambient[]  = { 0.8f, 0.8f, 0.8f, 1.0f };
        GLfloat diffuse[]  = { 0.9f, 0.9f, 0.9f, 1.0f };
        GLfloat position[] = { 0.0f, 0.0f, 1.0f, 0.0f };

        glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,GL_FALSE);
        glLightfv(GL_LIGHT0,GL_AMBIENT,ambient);
        glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuse);
        glLightfv(GL_LIGHT0,GL_POSITION,position);
        //glEnable(GL_LIGHT0);
    }

    {
        GLfloat ambient[]  = { 0.8f, 0.4f, 0.4f, 1.0f };
        GLfloat diffuse[]  = { 0.9f, 0.5f, 0.5f, 1.0f };
        GLfloat position[] = { 0.0f, 0.0f, 1.0f, 0.0f };

        glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER,GL_FALSE);
        glLightfv(GL_LIGHT1,GL_AMBIENT,ambient);
        glLightfv(GL_LIGHT1,GL_DIFFUSE,diffuse);
        glLightfv(GL_LIGHT1,GL_POSITION,position);
        //glEnable(GL_LIGHT1);
    }