急~啊！opengl 灯光 法线？？？

Question

没加Fragment Shader？ 看看你的脚本渲染是怎么写的，不知道你的错误在哪。

Answer 1

Fragment Shader？是什么？本人菜鸟一只，看不懂请说详细点谢谢！少设置什么请指点一下。 下面是渲染代码
   private float[] lightAmbient = {0.5f, 0.5f, 0.5f, 1.0f};
    private float[] lightDiffuse = {1.0f, 1.0f, 0.0f, 1.0f};
    private float[] specular     = { 0.0f, 0.0f, 0.0f, 1.0f };
    private float[] lightPosition = {0.0f, 0.0f, 0.0f, 1.0f};
@Override
    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
        ByteBuffer byteBuf = ByteBuffer.allocateDirect(lightAmbient.length * 4);
        byteBuf.order(ByteOrder.nativeOrder());
        lightAmbientBuffer = byteBuf.asFloatBuffer();
        lightAmbientBuffer.put(lightAmbient);
        lightAmbientBuffer.position(0);        byteBuf = ByteBuffer.allocateDirect(lightDiffuse.length * 4);
        byteBuf.order(ByteOrder.nativeOrder());
        lightDiffuseBuffer = byteBuf.asFloatBuffer();
        lightDiffuseBuffer.put(lightDiffuse);
        lightDiffuseBuffer.position(0);        byteBuf = ByteBuffer.allocateDirect(lightPosition.length * 4);
        byteBuf.order(ByteOrder.nativeOrder());
        lightPositionBuffer = byteBuf.asFloatBuffer();
        lightPositionBuffer.put(lightPosition);
        lightPositionBuffer.position(0);        byteBuf = ByteBuffer.allocateDirect(specular.length * 4);
        byteBuf.order(ByteOrder.nativeOrder());
        specularBuffer = byteBuf.asFloatBuffer();
        specularBuffer.put(specular);
        specularBuffer.position(0);        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_AMBIENT, lightAmbientBuffer);
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_DIFFUSE, lightDiffuseBuffer);
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_SPECULAR, specularBuffer);
        //设置灯光位置
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_POSITION, lightPositionBuffer);        gl.glEnable(GL10.GL_LIGHT0);//启用灯光0
        // 着色平滑
        gl.glShadeModel(GL10.GL_SMOOTH);
        // R, G, B, A
        gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
        // 设置深度缓存
        gl.glClearDepthf(1.0f);
        //启用深度测试
        gl.glEnable(GL10.GL_DEPTH_TEST);
        // 深度测试类型
        gl.glDepthFunc(GL10.GL_LEQUAL);
        //剔除背面
        gl.glEnable(GL10.GL_CULL_FACE);
        gl.glCullFace(GL10.GL_BACK);
        // 修正透视
        gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);        // 开启颜色渲染功能.
        gl.glEnableClientState(GL10.GL_COLOR_ARRAY);
        //启用法线
    }
@Override
    public void onSurfaceChanged(GL10 gl, int width, int height) {
        
        gl.glViewport(0, 0, width, height);
        gl.glMatrixMode(GL10.GL_PROJECTION);
        gl.glLoadIdentity();
        float ratio = (float) width / height;
        gl.glFrustumf(-ratio, ratio, -1, 1, 1, 10);// 设置视口的大小
        gl.glMatrixMode(GL10.GL_MODELVIEW);
        gl.glLoadIdentity();
    }
@Override
    public void onDrawFrame(GL10 gl) {        gl.glClear(GL10.GL_COLOR_BUFFER_BIT|GL10.GL_DEPTH_BUFFER_BIT);        gl.glEnable(GL10.GL_LIGHTING);
        gl.glLoadIdentity();
        draw(gl);        gl.glLoadIdentity();
           }
private void draw(GL10 gl){        gl.glTranslatef(-0.5f, 0.0f, -6.0f);
        gl.glScalef(0.8f, 0.8f, 0.8f);
        gl.glRotatef(45, 1f, 0f, 0f);
        gl.glRotatef(xAngle, 0f, 1f, 0f);
        gl.glColor4f(1.0f,1.0f ,0.0f, 1.0f);        //顶点传给opengl
        gl.glVertexPointer(3, GL10.GL_FLOAT, 0, objvBuffer);
        // 启用顶点数组
        gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
        //启用法线
        gl.glEnableClientState(GL10.GL_NORMAL_ARRAY);
        gl.glNormalPointer(GL10.GL_FLOAT, 0, NormalBuffer);  //NormalBuffer换成上面的objvBuffer竟然好多了        gl.glDrawElements(GL10.GL_TRIANGLES ,BufferUtil.objFtxt.length, GL10.GL_UNSIGNED_SHORT, objFBuffer);        gl.glDisableClientState(GL10.GL_NORMAL_ARRAY);
    }