diff --git a/c2me-opts-dfc/src/main/java/com/ishland/c2me/opts/dfc/common/gen/BytecodeGen.java b/c2me-opts-dfc/src/main/java/com/ishland/c2me/opts/dfc/common/gen/BytecodeGen.java
index 15855c37..daa1f01a 100644
--- a/c2me-opts-dfc/src/main/java/com/ishland/c2me/opts/dfc/common/gen/BytecodeGen.java
+++ b/c2me-opts-dfc/src/main/java/com/ishland/c2me/opts/dfc/common/gen/BytecodeGen.java
@@ -5,7 +5,13 @@
 import com.ishland.c2me.opts.dfc.common.ast.McToAst;
 import com.ishland.c2me.opts.dfc.common.ast.dfvisitor.StripBlending;
 import com.ishland.c2me.opts.dfc.common.ast.misc.ConstantNode;
+import com.ishland.c2me.opts.dfc.common.ast.misc.DelegateNode;
 import com.ishland.c2me.opts.dfc.common.ast.misc.RootNode;
+import com.ishland.c2me.opts.dfc.common.ast.misc.YClampedGradientNode;
+import com.ishland.c2me.opts.dfc.common.ast.noise.DFTNoiseNode;
+import com.ishland.c2me.opts.dfc.common.ast.noise.DFTShiftANode;
+import com.ishland.c2me.opts.dfc.common.ast.noise.DFTShiftBNode;
+import com.ishland.c2me.opts.dfc.common.ast.noise.DFTShiftNode;
 import com.ishland.c2me.opts.dfc.common.util.ArrayCache;
 import com.ishland.c2me.opts.dfc.common.vif.AstVanillaInterface;
 import it.unimi.dsi.fastutil.Hash;
@@ -82,6 +88,12 @@ public static DensityFunction compile(DensityFunction densityFunction, Reference
         AstNode ast = McToAst.toAst(densityFunction.apply(StripBlending.INSTANCE));
         if (ast instanceof ConstantNode constantNode) {
             return DensityFunctionTypes.constant(constantNode.getValue());
+        } else if (ast instanceof DFTNoiseNode ||
+                ast instanceof DFTShiftANode ||
+                ast instanceof DFTShiftBNode ||
+                ast instanceof DFTShiftNode ||
+                ast instanceof YClampedGradientNode) {
+            return densityFunction;
         }
         CompiledDensityFunction compiled = new CompiledDensityFunction(compile0(ast), densityFunction);
         tempCache.put(densityFunction, compiled);