Reduce the amount of arithmetic in the BlurEffect shader a bit.

[movit] / header.frag

diff --git a/header.frag b/header.frag
index 86c5730d2da831367d106ffe69b0033e114d7c75..af211fee6de53e2f02c5018d5ae5e59157117351 100644 (file)
--- a/header.frag
+++ b/header.frag
@@ -1 +1,6 @@
+#ifdef GL_EXT_gpu_shader4
+// We sometimes want round().
+#extension GL_EXT_gpu_shader4 : enable
+#endif
+
 varying vec2 tc;