1 files changed, 46 insertions, 0 deletions
diff --git a/o3d/compiler/glsl_validator/shaders/teapot-per-pixel.frag b/o3d/compiler/glsl_validator/shaders/teapot-per-pixel.frag
new file mode 100644
index 0000000..9e485f0
--- /dev/null
+++ b/o3d/compiler/glsl_validator/shaders/teapot-per-pixel.frag
@@ -0,0 +1,46 @@
+struct Light 
+{ 
+    vec4 ambient;
+    vec4 diffuse;
+    vec4 specular;
+    vec4 position;
+
+    vec3 halfVector;
+};
+
+struct Material
+{
+    vec4 emission;
+    vec4 ambient;
+    vec4 diffuse;
+    vec4 specular;
+    float shininess;
+};
+
+uniform sampler2D u_sampler2d;
+uniform Light u_light;
+uniform Material u_frontMaterial;
+uniform Material u_backMaterial;
+        
+varying vec4 v_diffuse, v_ambient;
+varying vec3 v_normal, v_lightDir;
+varying vec2 v_texCoord;
+
+void main()
+{
+    vec4 color = v_diffuse;
+
+    vec3 n = normalize(v_normal);
+
+    Light light = u_light;
+    vec3 lightDir = v_lightDir;
+    float nDotL = max(dot(n, lightDir), 0.0);
+    if (nDotL > 0.0) {
+        color = vec4(color.rgb * nDotL, color.a);
+        float nDotHV = max(dot(n, light.halfVector), 0.0);
+        vec4 specular = u_frontMaterial.specular * light.specular;
+        color += vec4(specular.rgb * pow(nDotHV, u_frontMaterial.shininess), specular.a);
+    }
+            
+    gl_FragColor = color + v_ambient;
+}