Deep blues were getting purple. Possibly due to rounding errors since…

… clamping values that are expected to be between 0 and 1 fixes it. Fixing #16.
michelf · Jun 17, 2020 · d6b62e9 · d6b62e9
1 parent c8603cd
commit d6b62e9
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/Filter/SimDaltonismFilter.m b/Filter/SimDaltonismFilter.m
@@ -229,6 +229,9 @@ void main()
 		// now shift *all* three proportional to the greatest shift...
 		s_rgb = s_rgb + ( adjust * d_rgb );
 
+		// fix issue where blues were getting purple
+		s_rgb = clamp(s_rgb, 0., 1.);
+
 		// anomalize
 		s_rgb = mix(c_rgb, s_rgb, anomalize);