Добавить ресурсы маджонга

шейдеры/освещение-изображение.frag

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+#ifdef GL_ES
+    precision highp float;
+#endif
+
+varying vec3 position;
+varying vec3 normal;
+
+const vec3 lightPosition = vec3(10, 20, 10);
+
+varying vec2 texCoord;
+uniform sampler2D image;
+
+float lambertianReflectanceStrength(vec3 position, vec3 lightPosition)
+{
+    vec3 lightDirection = normalize(lightPosition - position);
+    // Light flux direction.
+    float strength = dot(normal, lightDirection);
+    float diffuse = max(strength, 0.2);
+
+    return diffuse;
+}
+
+void main()
+{
+    vec3 texColor = texture2D(image, texCoord).rgb;
+    vec3 finalColor = texColor * lambertianReflectanceStrength(position, lightPosition);
+    gl_FragColor = vec4(finalColor, 1.0);
+}

шейдеры/освещение-изображение.vert

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+varying vec3 position;
+varying vec3 normal;
+varying vec2 texCoord;
+
+void main()
+{
+    // Translate vertex coordinates from model/object space to screen one.
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+
+    // Pass vertex coordinates and normal into camera/eye space.
+    position = vec3(gl_ModelViewMatrix * gl_Vertex);
+    normal = vec3(gl_ModelViewMatrix * vec4(gl_Normal, 0.0));
+    
+	// Pass texture coordinate.
+    texCoord = gl_MultiTexCoord0.xy;
+}