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+.. meta::
+   :description:
+        Split Alpha: how to work with color and alpha channels of the layer seperately
+
+.. metadata-placeholder
+
+   :authors: - Dmitry Kazakov <dimula73@gmail.com>
+   :license: GNU free documentation license 1.3 or later.
+
+.. index:: Layers, Transparency, Alpha channel, Game
+.. _split_alpha:
+
+===========
+Split Alpha
+===========
+
+Sometimes (especially in game development) artists need to work with alpha channel of the texture separately. To assist such workflow Krita has a special :menuselection:`Split Alpha` functionality. It allows splitting alpha channel of a paint layer into a separate Transparency Mask, work with it in an isolated environment and merge back when finished.
+
+How to work with alpha channel of the layer
+-------------------------------------------
+
+#. |mouseright| the paint layer in the layers docker.
+#. Choose :menuselection:`Split Alpha->Alpha into Mask`
+#. Use your preferred paint tool to paint on the Transparency Mask. Black paints transparency (see-through), white paints opacity (visible). Gray values paint semi-transparency.
+#. If you would like to isolate alpha channel, enter Isolated Mode by |mouseright| + :menuselection:`Isolated Mode` (or :kbd:`Alt` + |mouseleft|)
+#. When finished editing the Transparency Mask, |mouseright| on it and select :menuselection:`Split Alpha->Write as Alpha`
+
+How to save a PNG texture and keep color values in fully transparent areas
+--------------------------------------------------------------------------
+
+#. |mouseright| the layer in the layers docker.
+#. Choose :menuselection:`Split Alpha->Alpha into Mask`
+#. |mouseright| on the created mask and select :menuselection:`Split Alpha->Save Merged...`