X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=c9a08bfd8f85091ec711175b274de77cb9b09359;hp=cadb58c456f342f1ba472e4fb4b19cb66efe8837;hb=dae484d2ac79b828fe31d7416fc5838a6d3341ef;hpb=96a1cff51a8b7dc45ebe725e0d0685eecce31331

diff --git a/vignette_effect.h b/vignette_effect.h
index cadb58c..c9a08bf 100644
--- a/vignette_effect.h
+++ b/vignette_effect.h
@@ -1,14 +1,17 @@
 #ifndef _VIGNETTE_EFFECT_H
 #define _VIGNETTE_EFFECT_H 1
 
+// A circular vignette, falling off as cos² of the distance from the center
+// (the classic formula for approximating a real lens).
+
 #include "effect.h"
 
 class VignetteEffect : public Effect {
 public:
 	VignetteEffect();
-	std::string output_glsl();
+	std::string output_fragment_shader();
 
-	void set_uniforms(GLuint glsl_program_num, const std::string &prefix);
+	void set_uniforms(GLuint glsl_program_num, const std::string &prefix, unsigned *sampler_num);
 
 private:
 	Point2D center;