1 files changed, 29 insertions, 0 deletions
diff --git a/src/render/shaders/pervertexcolor.frag b/src/render/shaders/pervertexcolor.frag
new file mode 100644
index 000000000..a636781c4
--- /dev/null
+++ b/src/render/shaders/pervertexcolor.frag
@@ -0,0 +1,29 @@
+#version 150 core
+
+// TODO: Replace with a uniform block
+uniform vec4 lightPosition;
+uniform vec3 lightIntensity;
+
+in vec3 position;
+in vec3 normal;
+in vec3 color;
+
+out vec4 fragColor;
+
+vec3 adModel( const in vec3 pos, const in vec3 n, const in vec3 col )
+{
+    // Calculate the vector from the light to the fragment
+    vec3 s = normalize( vec3( lightPosition ) - pos );
+
+    // Calculate the diffuse component
+    float diffuse = max( dot( s, n ), 0.0 );
+
+    // Combine the ambient and diffuse contributions
+    return lightIntensity * ( col + col * diffuse );
+}
+
+void main()
+{
+    fragColor = vec4( adModel( position, normalize( normal ), color ), 1.0 );
+}
+