1 #version 330 core

     1 #version 330 core

     2 

     2 

     3 uniform  sampler2D  uTexture;

     3 uniform  sampler2D  uTexture;

     4 in       vec2       vTextureXY;

     5 in       vec2       vTextureXY;

     5 out      vec4       fColor;

     6 out      vec4       fColor;

     6 

     7 

     7 vec4 grayscale(vec4 original) {

     8 vec4 grayscale(vec4 original) {

     8 	const vec3 luminanceWeighting = vec3(0.2125, 0.7154, 0.0721);

     9 	const vec3 luminanceWeighting = vec3(0.2125, 0.7154, 0.0721);