git-svn-id: https://casparcg.svn.sourceforge.net/svnroot/casparcg/server/branches...

diff --git a/core/mixer/image/image_mixer.cpp b/core/mixer/image/image_mixer.cpp
index bcdf592d20adff3d2b2568658ee6cf5eb5b5ae9c..24028495505299cae50921d0a00c543a1daa4fa2 100644 (file)
--- a/core/mixer/image/image_mixer.cpp
+++ b/core/mixer/image/image_mixer.cpp
@@ -158,7 +158,7 @@ public:
                        \r
                        BOOST_FOREACH(auto& item, layer)                \r
                        {\r
-                               item.transform.set_blend_mode(image_transform::blend_mode::normal);\r
+                               item.transform.set_blend_mode(image_transform::blend_mode::normal); // Disable blending, it will be used when merging back into render stack.\r
                                draw_item(std::move(item), local_draw_buffer, local_key_buffer, layer_key_buffer);              \r
                        }\r
 \r
@@ -188,6 +188,7 @@ public:
                                local_key_buffer.second = create_device_buffer(1);\r
                        }\r
 \r
+                       // No transparancy for key\r
                        item.transform.set_opacity(1.0);\r
                        item.transform.set_blend_mode(image_transform::blend_mode::normal);\r
 \r