X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=alpha_division_effect.h;h=2fd90820615269edad7a7655030c69d57ea01398;hp=b95e9fe77c61fb8074e548e1f361ae43f1dfdf3e;hb=34776d3ed2565ee834405e575bf3bfc7f7933e36;hpb=ac4fc36aa70ffefb6b9632dc0abea5cbbce5387b

diff --git a/alpha_division_effect.h b/alpha_division_effect.h
index b95e9fe..2fd9082 100644
--- a/alpha_division_effect.h
+++ b/alpha_division_effect.h
@@ -1,17 +1,22 @@
 #ifndef _MOVIT_ALPHA_DIVISION_EFFECT_H
 #define _MOVIT_ALPHA_DIVISION_EFFECT_H 1
 
-// Convert premultiplied alpha to postmultiplied alpha, simply by multiplying.
+// Convert postmultiplied alpha to premultiplied alpha, simply by dividing.
 
 #include <string>
 
 #include "effect.h"
 
+namespace movit {
+
 class AlphaDivisionEffect : public Effect {
 public:
 	AlphaDivisionEffect() {}
 	virtual std::string effect_type_id() const { return "AlphaDivisionEffect"; }
 	std::string output_fragment_shader();
+	virtual bool one_to_one_sampling() const { return true; }
 };
 
+}  // namespace movit
+
 #endif // !defined(_MOVIT_ALPHA_DIVISION_EFFECT_H)