1 files changed, 22 insertions, 0 deletions
diff --git a/mainf.glsl b/mainf.glsl
new file mode 100644
index 0000000..46ebdcb
--- /dev/null
+++ b/mainf.glsl
@@ -0,0 +1,22 @@
+uniform vec3 u_color;
+uniform vec3 u_directional_light1; // (direction to light)
+uniform vec3 u_directional_light1_color;
+uniform vec3 u_directional_light2;
+uniform vec3 u_directional_light2_color;
+uniform vec3 u_ambient_light;
+uniform int u_lighting_enabled;
+
+varying vec3 normal;
+
+void main() {
+	vec3 N = normalize(normal);
+	vec3 L;
+	if (u_lighting_enabled != 0) {
+		L = max(0.0, dot(u_directional_light1, N)) * u_directional_light1_color
+			+ max(0.0, dot(u_directional_light2, N)) * u_directional_light2_color
+			+ u_ambient_light;
+	} else {
+		L = vec3(1.0, 1.0, 1.0);
+	}
+	gl_FragColor = vec4(L * u_color, 1.0);
+}