Changeset 272

Timestamp:

04/30/10 16:00:46 (8 years ago)

Author:

art

Message:

• hdr example, luminance value corrected slightly

File:

• tags/osgPPU-0.4.2-rc1/Data/glsl/luminance_mipmap_fp.glsl (modified) (2 diffs)

tags/osgPPU-0.4.2-rc1/Data/glsl/luminance_mipmap_fp.glsl

@@ -75 +75 @@
         res += log(epsilon + c[3]);
 
-        // we prevent negative values by checking if computed log value is below 0
-        res = max(res, 0.0);
-
     // for the rest we just compute the sum of underlying values
     }else
@@ -93 +90 @@
     if (osgppu_MipmapLevelNum - osgppu_MipmapLevel < 2.0)
     {
-        // exponentiate (substract 1 to correct the zero point)
-        res = exp(res) - 1.0;
+        // exponentiate
+        res = exp(res);
     }