From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Thu, 26 Jul 2018 23:30:27 +0000 (+0200)
Subject: Halve the number of motion search iterations, to eight.
X-Git-Tag: 1.8.0~76^2~170
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=6a13c064b59848da123732b809aaf2ec5f15e6b4;p=nageru

Halve the number of motion search iterations, to eight.

The DIS code claims this is allowed after they changed their Sobel code;
for us, seemingly SOR was the breaking point. EPE is hardly moving
(<1% for most Sintel tests I've run), but speed goes up markedly.
---

diff --git a/motion_search.frag b/motion_search.frag
index f67cbba..cd251f4 100644
--- a/motion_search.frag
+++ b/motion_search.frag
@@ -36,7 +36,7 @@
  */
 
 const uint patch_size = 12;
-const uint num_iterations = 16;
+const uint num_iterations = 8;
 
 in vec2 flow_tc;
 in vec2 patch_center;