X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=vignette_effect.h;h=c9a08bfd8f85091ec711175b274de77cb9b09359;hp=1d75f7e63b11432677a6944e9d2bd2f89ccb296e;hb=dae484d2ac79b828fe31d7416fc5838a6d3341ef;hpb=2b4a7d868112b4995bf6699f5b3aa68e9ec2b308

diff --git a/vignette_effect.h b/vignette_effect.h
index 1d75f7e..c9a08bf 100644
--- a/vignette_effect.h
+++ b/vignette_effect.h
@@ -1,15 +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_vertex_shader();
 	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;