diff --git a/gui/shaders/README b/Shaders/ShaderVG/README
similarity index 53%
rename from gui/shaders/README
rename to Shaders/ShaderVG/README
index 01e31dcb3..2f371d7e8 100644
--- a/gui/shaders/README
+++ b/Shaders/ShaderVG/README
@@ -1,3 +1,6 @@
 The shaders in this directory are taken from the source code of ShaderVG,
 located in simgear/canvas/ShaderVG/src/shaders.c, to make it easier to
-updated them.
+update them.
+
+These shaders are loaded manually using raw OpenGL calls. OpenSceneGraph and
+Effects are not involved at all.
diff --git a/gui/shaders/canvas_color_ramp.frag b/Shaders/ShaderVG/color_ramp.frag
similarity index 100%
rename from gui/shaders/canvas_color_ramp.frag
rename to Shaders/ShaderVG/color_ramp.frag
diff --git a/gui/shaders/canvas_color_ramp.vert b/Shaders/ShaderVG/color_ramp.vert
similarity index 100%
rename from gui/shaders/canvas_color_ramp.vert
rename to Shaders/ShaderVG/color_ramp.vert
diff --git a/gui/shaders/canvas_pipeline.frag b/Shaders/ShaderVG/pipeline.frag
similarity index 100%
rename from gui/shaders/canvas_pipeline.frag
rename to Shaders/ShaderVG/pipeline.frag
diff --git a/gui/shaders/canvas_pipeline.vert b/Shaders/ShaderVG/pipeline.vert
similarity index 100%
rename from gui/shaders/canvas_pipeline.vert
rename to Shaders/ShaderVG/pipeline.vert