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第9章 3D模型加载/Sample9_2/assets/frag.sh

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+precision mediump float;
+varying vec4 ambient;
+varying vec4 diffuse;
+varying vec4 specular;
+void main()                         
+{    
+   //将计算出的颜色给此片元
+   vec4 finalColor=vec4(0.9,0.9,0.9,1.0);   
+   gl_FragColor = finalColor*ambient+finalColor*specular+finalColor*diffuse;//给此片元颜色值
+
+}