From b19dd922ec69f0dab4ee087f852e0b7fbc6ffaa6 Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Fri, 25 Jul 2014 13:26:03 +0200
Subject: Add ^[mask texture modifier

---
 doc/lua_api.txt | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'doc')

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index d25cd741c..74487edee 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -258,6 +258,10 @@ Advanced texture modifiers:
     Crops the texture to a frame of a vertical animation.
     Example: default_torch_animated.png^[verticalframe:16:8
 
+  [mask:<file>
+    Apply a mask to the base image.
+    The mask is applied using binary AND.
+
 Sounds
 -------
 Only OGG Vorbis files are supported.
-- 
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