diff --git a/priorConditionedAnnealing/noise.py b/priorConditionedAnnealing/noise.py
index e68f399..a1cbdfc 100644
--- a/priorConditionedAnnealing/noise.py
+++ b/priorConditionedAnnealing/noise.py
@@ -146,3 +146,20 @@ class Harmonic_Perlin_Noise():
         self.noises = []
         for octave, amplitude in enumerate(self.octaves):
             self.noises += [Perlin_Noise(known_shape=self.known_shape, scale=self.scale, octave=(octave+1))]
+
+
+class Dirty_Perlin_Noise():
+    def __init__(self, known_shape=None, scale=0.1, dirty_ratio=1/3):
+        self.known_shape = known_shape
+        self.scale = scale
+        self.dirty_ratio = dirty_ratio
+        self.reset()
+
+    def __call__(self, shape=None):
+        if shape == None:
+            shape = self.known_shape
+        return self.perlin(shape)*(1-self.dirty_ratio) + self.white(shape)*self.dirty_ratio
+
+    def reset(self):
+        self.perlin = Perlin_Noise(known_shape=self.known_shape, scale=self.scale, octave=1)
+        self.white = White_Noise(known_shape=self.known_shape)
diff --git a/priorConditionedAnnealing/pca.py b/priorConditionedAnnealing/pca.py
index cec64df..4466ffb 100644
--- a/priorConditionedAnnealing/pca.py
+++ b/priorConditionedAnnealing/pca.py
@@ -51,11 +51,12 @@ class Avaible_Noise_Funcs(Enum):
     COLOR = 2
     PERLIN = 3
     HARMONICPERLIN = 4
-    SDE = 5
+    DIRTYPERLIN = 5
+    SDE = 6
 
     def get_func(self):
         # stil aaaaaaaa
-        return [noise.White_Noise, noise.Pink_Noise, noise.Colored_Noise, noise.Perlin_Noise, noise.Harmonic_Perlin_Noise, noise.SDE_Noise][self.value]
+        return [noise.White_Noise, noise.Pink_Noise, noise.Colored_Noise, noise.Perlin_Noise, noise.Harmonic_Perlin_Noise, noise.Dirty_Perlin_Noise, noise.SDE_Noise][self.value]
 
 
 def cast_to_enum(inp, Class):