some minor optimizations

2.10/Source/XForm.pas

@@ -452,7 +452,8 @@ var
   dx, dy: double;
   sinr, cosr: extended;
 begin
-  dx := exp(FTx)/ 2.718281828459045;
+  dx := exp(FTx - 1); // exp(FTx)/ 2.718281828459045;
+  // --Z-- (e^x)/e = e^(x-1), isn't it?!
   dy := PI * FTy;
   SinCos(dy, sinr, cosr);
   FPx := FPx + vars[18] * cosr * dx;

2.10/Source/varblob.pas

@@ -88,8 +88,8 @@ begin
     FHigh := Value;
     Result := True;
   end else if Name = 'blob_waves' then begin
-    Value := Round(Value);
+    //???????????? what for?: // Value := Round(Value);
-    FWaves := Value;
+    FWaves := Round(Value);
     Result := True;
   end
 end;