Added VK_NV_ray_tracing reflections example

data/shaders/nv_ray_tracing_reflections/miss.rmiss

@@ -0,0 +1,25 @@
+#version 460
+#extension GL_NV_ray_tracing : require
+
+struct RayPayload {
+	vec3 color;
+	float distance;
+	vec3 normal;
+	float reflector;
+};
+
+layout(location = 0) rayPayloadInNV RayPayload rayPayload;
+
+void main()
+{
+	// View-independent background gradient to simulate a basic sky background
+	const vec3 gradientStart = vec3(0.5, 0.6, 1.0);
+	const vec3 gradientEnd = vec3(1.0);
+	vec3 unitDir = normalize(gl_WorldRayDirectionNV);
+	float t = 0.5 * (unitDir.y + 1.0);
+	rayPayload.color = (1.0-t) * gradientStart + t * gradientEnd;
+
+	rayPayload.distance = -1.0f;
+	rayPayload.normal = vec3(0.0f);
+	rayPayload.reflector = 0.0f;
+}