From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 30 May 2019 10:54:42 +0000 (+0300)
Subject: Fix a texture data indexing bug in AmbientOcclusion
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=a2e5fc44fc4eae17c98a569af1c6bd0baf1f7684;p=libs%2Fgl.git

Fix a texture data indexing bug in AmbientOcclusion
---

diff --git a/source/ambientocclusion.cpp b/source/ambientocclusion.cpp
index 2378bcc7..49d71254 100644
--- a/source/ambientocclusion.cpp
+++ b/source/ambientocclusion.cpp
@@ -29,10 +29,10 @@ AmbientOcclusion::AmbientOcclusion(unsigned w, unsigned h, float):
 		Geometry::Angle<float> a = Geometry::Angle<float>::from_turns(random(seed));
 		unsigned char c = (cos(a)*0.5f+0.5f)*255;
 		unsigned char s = (sin(a)*0.5f+0.5f)*255;
-		data[i*3  ] = c;
-		data[i*3+1] = s;
-		data[i*3+2] = 255-s;
-		data[i*3+4] = ((i+i/4)%2)*255;
+		data[i*4  ] = c;
+		data[i*4+1] = s;
+		data[i*4+2] = 255-s;
+		data[i*4+3] = ((i+i/4)%2)*255;
 	}
 	rotate_lookup.image(0, RGBA, UNSIGNED_BYTE, data);