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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:34:13 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:34:13 (GMT)
commit67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch)
tree1dbf50b3dff8d5ca7e9344733968c72704eb15ff /src/opengl/util/composition_mode_screen.glsl
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Long live Qt!
Diffstat (limited to 'src/opengl/util/composition_mode_screen.glsl')
-rw-r--r--src/opengl/util/composition_mode_screen.glsl6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/opengl/util/composition_mode_screen.glsl b/src/opengl/util/composition_mode_screen.glsl
new file mode 100644
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+++ b/src/opengl/util/composition_mode_screen.glsl
@@ -0,0 +1,6 @@
+// Dca' = Sca + Dca - Sca.Dca
+// Da' = Sa + Da - Sa.Da
+vec4 composite(vec4 src, vec4 dst)
+{
+ return src + dst - src * dst;
+}