X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=blur_effect.frag;h=8c0a01d6216c35bdb59836fbe6a8d831dc2e2fee;hp=51ff39a58c33d44b5a241a2f1a82864485c85383;hb=86b456fd6112ba54dd890c4f8be408d297de07d5;hpb=c0461658ca2abaa10aae42f40ffee7e5128bc7ab

diff --git a/blur_effect.frag b/blur_effect.frag
index 51ff39a..8c0a01d 100644
--- a/blur_effect.frag
+++ b/blur_effect.frag
@@ -1,24 +1,24 @@
-// A simple, very stupid horizontal blur. Will be fixed soonish.
+// A simple unidirectional blur.
 
-uniform float PREFIX(pixel_offset);
+uniform vec2 PREFIX(pixel_offset);
 uniform float PREFIX(weight)[15];
 
 vec4 FUNCNAME(vec2 tc) {
 	vec4 x = LAST_INPUT(tc);
 	return
-		vec4(PREFIX(weight)[ 0]) * LAST_INPUT(vec2(tc.x - 7.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 1]) * LAST_INPUT(vec2(tc.x - 6.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 2]) * LAST_INPUT(vec2(tc.x - 5.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 3]) * LAST_INPUT(vec2(tc.x - 4.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 4]) * LAST_INPUT(vec2(tc.x - 3.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 5]) * LAST_INPUT(vec2(tc.x - 2.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 6]) * LAST_INPUT(vec2(tc.x -       PREFIX(pixel_offset), tc.y)) +
+		vec4(PREFIX(weight)[ 0]) * LAST_INPUT(tc - 7.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 1]) * LAST_INPUT(tc - 6.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 2]) * LAST_INPUT(tc - 5.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 3]) * LAST_INPUT(tc - 4.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 4]) * LAST_INPUT(tc - 3.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 5]) * LAST_INPUT(tc - 2.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 6]) * LAST_INPUT(tc -       PREFIX(pixel_offset)) +
 		vec4(PREFIX(weight)[ 7]) * LAST_INPUT(tc) +
-		vec4(PREFIX(weight)[ 8]) * LAST_INPUT(vec2(tc.x +       PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[ 9]) * LAST_INPUT(vec2(tc.x + 2.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[10]) * LAST_INPUT(vec2(tc.x + 3.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[11]) * LAST_INPUT(vec2(tc.x + 4.0 * PREFIX(pixel_offset), tc.y)) +
-		vec4(PREFIX(weight)[12]) * LAST_INPUT(vec2(tc.x + 5.0 * PREFIX(pixel_offset), tc.y));
-		vec4(PREFIX(weight)[13]) * LAST_INPUT(vec2(tc.x + 6.0 * PREFIX(pixel_offset), tc.y));
-		vec4(PREFIX(weight)[14]) * LAST_INPUT(vec2(tc.x + 7.0 * PREFIX(pixel_offset), tc.y));
+		vec4(PREFIX(weight)[ 8]) * LAST_INPUT(tc +       PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[ 9]) * LAST_INPUT(tc + 2.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[10]) * LAST_INPUT(tc + 3.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[11]) * LAST_INPUT(tc + 4.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[12]) * LAST_INPUT(tc + 5.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[13]) * LAST_INPUT(tc + 6.0 * PREFIX(pixel_offset)) +
+		vec4(PREFIX(weight)[14]) * LAST_INPUT(tc + 7.0 * PREFIX(pixel_offset));
 }