uniform sampler2D uTexMain;
uniform vec3 uCamera;

#include "light_clearskies_stddef.glsl"
#include "common_scene.glsl"
#include "motion_vectors_fs.glsl"

void main(){
   oMotionVec = vec2(0.0);

   vec4 vsamplemain = texture( uTexMain, aUv );

   vec2 ssuv = gl_FragCoord.xy;
   vec3 vDither = vec3( dot( vec2( 171.0, 231.0 ), ssuv) );
   float dither = fract( vDither.g / 71.0 ) - 0.5;

   if( vsamplemain.a+dither<0.5 )
      discard;

   oColour = vec4( vsamplemain.rgb, 1.0 );
}