From f4a22cc8d9e1c329a1c1c9518bc0c638168e9bd7 Mon Sep 17 00:00:00 2001
From: shun-iwasawa <shun.iwasawa@ghibli.jp>
Date: Tue, 25 Jan 2022 18:03:19 +0900
Subject: [PATCH] fix dynamic conical fractal noise

---
 toonz/sources/stdfx/iwa_fractalnoisefx.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/toonz/sources/stdfx/iwa_fractalnoisefx.cpp b/toonz/sources/stdfx/iwa_fractalnoisefx.cpp
index 649c0b9a..486170c2 100644
--- a/toonz/sources/stdfx/iwa_fractalnoisefx.cpp
+++ b/toonz/sources/stdfx/iwa_fractalnoisefx.cpp
@@ -384,8 +384,11 @@ void Iwa_FractalNoiseFx::doCompute(TTile &tile, double frame,
           // obtain sampling position
           // For Dynamic and Dynamic Twist patterns, the position offsets using
           // gradient / rotation of the parent pattern
+          TPointD samplePosOffset =
+              getSamplePos(x, y, outDim, out_buf, gen, scale, param) -
+              TPointD(x, y);
           TPointD samplePos =
-              getSamplePos(dx, dy, outDim, out_buf, gen, scale, param);
+              TPointD(dx, dy) + samplePosOffset * (D / (D + dz));
           // multiply affine transformation
           samplePos = currentAff * samplePos;
           // adjust position for the block pattern