Diffuse lighting and sending the normals to shaders

OpenGL/playground/resources/shaders/phong.frag

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+#version 330
+
+in vec3 Normal;
+in vec3 FragPos;
+
+uniform vec3 lightPos;
+
+out vec4 outColour;
+
+vec3 objectColour = vec3(0.58, 0.61, 0.627);
+vec3 lightColour = vec3(0.0, 1.0, 1.0);
+
+void main() {
+    float ambientStrength = 0.5;
+    vec3 ambient = ambientStrength * lightColour;
+
+    vec3 norm = normalize(Normal);
+    vec3 lightDir = normalize(lightPos - FragPos);  
+
+    float diff = max(dot(norm, lightDir), 0.0);
+    vec3 diffuse = diff * lightColour;
+
+    vec3 result = (ambient + diffuse) * objectColour;
+    outColour = vec4(result, 1.0);
+}

OpenGL/playground/resources/shaders/phong.vert

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+#version 330 
+
+in vec3 position;
+in vec3 normal;
+
+out vec3 Normal;
+out vec3 FragPos;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 proj;
+
+void main() {
+    gl_Position = proj * view * model * vec4(position, 1.0);
+    FragPos = vec3(model * vec4(position, 1.0));
+    Normal = normal;
+}