From 5bac584538c7f7c72a41521a440df5e8a6358753 Mon Sep 17 00:00:00 2001 From: Benjamin Franzke Date: Thu, 15 Mar 2012 09:15:02 +0100 Subject: wimmel.frag: Rename search_rect to srect --- wimmel.frag | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'wimmel.frag') diff --git a/wimmel.frag b/wimmel.frag index d3cf745..b148852 100644 --- a/wimmel.frag +++ b/wimmel.frag @@ -1,20 +1,19 @@ varying vec2 v_texcoord; uniform sampler2D tex; uniform vec2 pixelsize; -uniform vec4 search_rect; +/* The rect to match against */ +uniform vec4 srect; uniform int barrier; void main() { - float i, j; - float width = search_rect[2]; - float height = search_rect[3]; int diff = 0; + float i, j; - for (i = 0.0; i < width && diff < barrier; i += pixelsize.x) { - for (j = 0.0; j < height && diff < barrier; j += pixelsize.y) { - vec4 match = texture2D(tex, search_rect.xy + vec2(i,j)); + for (i = 0.0; i < srect[2] && diff < barrier; i += pixelsize.x) { + for (j = 0.0; j < srect[3] && diff < barrier; j += pixelsize.y) { + vec4 match = texture2D(tex, srect.xy + vec2(i,j)); vec4 orig = texture2D(tex, v_texcoord + vec2(i,j)); diff += int(any(greaterThan(abs(orig - match), vec4(0.2)))); -- cgit