Update and improve documentation

[libs/gl.git] / source / effects / bloom.h

diff --git a/source/effects/bloom.h b/source/effects/bloom.h
index 94057b2f7b21a0603db19432fcfe4602082a0a3b..30e98f7ee75f95a52e8f3e0ef7764daf380f3876 100644 (file)
--- a/source/effects/bloom.h
+++ b/source/effects/bloom.h
@@ -11,12 +11,11 @@ namespace GL {
 class Program;
 
 /**
-The Bloom post-processing effect causes very bright areas of the image to bleed
-into surrounding pixels.  Commonly used together with HDR rendering.
+Bleeds very bright areas of the image into surrounding pixels to simulate
+optical imperfections in lenses.
 
-The technique used is to gaussian blur the image and then blend the result with
-the original image.  With suitable parameters, this effect may also be used as
-a blur filter.
+The input image is blurred with a gaussian kernel to simulate the Airy disc
+produced by a lens, then the blurred image is blended with the original.
 */
 class Bloom: public PostProcessor
 {