Adapted Escape the Dawn engine.

src/Shaders/AABB.frag.glsl

@@ -0,0 +1,17 @@
+#version 430
+
+uniform vec4 Color;
+
+in VertexData {
+	vec3 Position;
+	vec3 Normal;
+	vec2 TextureCoord;
+	vec3 ShadowCoord;
+} Input;
+
+out vec4 FragmentColor;
+
+void main() {
+	//FragmentColor = vec4(1.0 - gl_Color.r, 1.0 - gl_Color.g, 1.0 - gl_Color.b, 0.0);
+	FragmentColor = Color;
+}