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| author | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2012-03-14 23:25:39 +0100 |
|---|---|---|
| committer | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2012-03-14 23:25:39 +0100 |
| commit | 5be333052f97c9980a328af2b256ffbff6c6af9b (patch) | |
| tree | f2f2cbbbd7ce136367aaa46e2d0c76eee33892cd | |
| parent | 5bcbaab8ea90655c2496c8df029a9cb991dba0ce (diff) | |
| download | cv-5be333052f97c9980a328af2b256ffbff6c6af9b.tar.gz cv-5be333052f97c9980a328af2b256ffbff6c6af9b.tar.bz2 cv-5be333052f97c9980a328af2b256ffbff6c6af9b.zip | |
Revert "wimmel.frag: Discard fragment early if difference is to significant"
This reverts commit 5bcbaab8ea90655c2496c8df029a9cb991dba0ce.
This was 0.2seconds faster on r600g but
4 seconds slower on sandybridge.
| -rw-r--r-- | wimmel.frag | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/wimmel.frag b/wimmel.frag index b9271d7..d3cf745 100644 --- a/wimmel.frag +++ b/wimmel.frag @@ -12,19 +12,16 @@ main() float height = search_rect[3]; int diff = 0; - for (i = 0.0; i < width; i += pixelsize.x) { - for (j = 0.0; j < height; j += pixelsize.y) { + 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)); vec4 orig = texture2D(tex, v_texcoord + vec2(i,j)); diff += int(any(greaterThan(abs(orig - match), vec4(0.2)))); - if (diff >= barrier) - discard; } } - /* Only written if fragment is NOT discarded in loop */ - gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); + gl_FragColor = vec4(float(diff < barrier), 0.0, 0.0, 1.0); } // vim:ft=c: |