1 files changed, 21 insertions, 0 deletions

diff --git a/shaders/debug3d.frag b/shaders/debug3d.frag
new file mode 100644
index 0000000..54568d4
--- /dev/null
+++ b/shaders/debug3d.frag
@@ -0,0 +1,21 @@
+precision highp float;
+
+const vec3 Colour = vec3(0.97, 0.948, 0.91);
+
+const vec3 ToLight = vec3(1, 0.7, 1);
+
+in vec3 Normal;
+
+out vec4 FragColour;
+
+void main()
+{
+    vec3 N = normalize(Normal);
+    vec3 L = normalize(ToLight);
+
+    vec3 a = vec3(0.7);
+    vec3 d = vec3(0.3 * (0.7*max(0.0, dot(L,N)) + 0.3*max(0.0, dot(-L,N))));
+    vec3 c = Colour * (a+d);
+
+    FragColour = vec4(pow(c, vec3(1.0 / 2.2)), 1.0);
+}