Add comment to clarify what is happening with the opacity value.

GPHemsley · Nov 21, 2012 · dd434c5 · dd434c5
1 parent f1ad327
commit dd434c5
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/tiff.js b/tiff.js
@@ -621,6 +621,7 @@ TIFFParser.prototype = {
 						if (numExtraSamples > 0) {
 							for (var k = 0; k < numExtraSamples; k++) {
 								if (extraSamplesValues[k] === 1) {
+									// Clamp opacity to the range [0,1].
 									opacity = pixelSamples[3 + k] / 256;
 
 									break;