#include <math.h>
#include <string.h>
#include <assert.h>
+#include <GL/glew.h>
#include <algorithm>
#include <set>
#include "colorspace_conversion_effect.h"
#include "dither_effect.h"
#include "input.h"
-#include "opengl.h"
EffectChain::EffectChain(float aspect_nom, float aspect_denom)
: aspect_nom(aspect_nom),