From fdece91b5e07225a744825bfee1fc0267c8a7b13 Mon Sep 17 00:00:00 2001
From: shun-iwasawa <shun-iwasawa@users.noreply.github.com>
Date: Mon, 12 Nov 2018 18:56:53 +0900
Subject: [PATCH] fix antialias to toonz raster levels (#2370)

---
 toonz/sources/toonzlib/tcolumnfx.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/toonz/sources/toonzlib/tcolumnfx.cpp b/toonz/sources/toonzlib/tcolumnfx.cpp
index 04e16ef9..4d39bf72 100644
--- a/toonz/sources/toonzlib/tcolumnfx.cpp
+++ b/toonz/sources/toonzlib/tcolumnfx.cpp
@@ -1158,6 +1158,12 @@ void TLevelColumnFx::doCompute(TTile &tile, double frame,
         ras = ti->getRaster();
 
       if (sl->getProperties()->antialiasSoftness() > 0) {
+        // convert colormap raster to fullcolor raster before applying antialias
+        if (ti) {
+          TRaster32P convRas(ras->getSize());
+          TRop::convert(convRas, ras, ti->getPalette(), TRect(), false, true);
+          ras = convRas;
+        }
         TRasterP appRas = ras->create(ras->getLx(), ras->getLy());
         TRop::antialias(ras, appRas, 10,
                         sl->getProperties()->antialiasSoftness());
@@ -1206,7 +1212,7 @@ void TLevelColumnFx::doCompute(TTile &tile, double frame,
       // Observe that inTile is in the standard reference, ie image's minus the
       // center coordinates
 
-      if (ti) {
+      if ((TRasterCM32P)ras) {
         // In the colormapped case, we have to convert the cmap to fullcolor
         TPalette *palette = ti->getPalette();