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-rw-r--r--src/shaders/common.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/shaders/common.h b/src/shaders/common.h
index 36f80c0..61066e5 100644
--- a/src/shaders/common.h
+++ b/src/shaders/common.h
@@ -35,6 +35,12 @@ Vec4 _proj_params;
// duration
Vec2 _time;
+// width
+// height
+// 1 / width
+// 1 / height
+Vec4 _screen_params;
+
/************************************************************************/
/* functions */
/************************************************************************/