uniform sampler2D uTexGarbage;
uniform sampler2D uTexMain;
uniform vec3 uCamera;
uniform vec4 uPlane;

in vec4 aColour;
in vec2 aUv;
in vec3 aNorm;
in vec3 aCo;
in vec3 aWorldCo;

#include "common_world.glsl"
#include "motion_vectors_fs.glsl"

void main()
{
   compute_motion_vectors();

   vec3 vfrag = vec3(0.5,0.5,0.5);
   vec4 vsamplemain = texture( uTexMain, aUv );
   vec3 qnorm = normalize(aNorm);

   if( vsamplemain.a < 0.15 )
     discard;

   vfrag = vsamplemain.rgb;

   if( g_light_preview == 1 )
   {
      vfrag = vec3(0.5);
   }

   // Lighting
   vec3 halfview = uCamera - aWorldCo;
   float fdist = length( halfview );
   halfview /= fdist;

   vfrag = do_light_diffuse( vfrag, qnorm );
   vfrag = do_light_spec( vfrag, qnorm, halfview, 0.1 );
   vfrag = do_light_shadowing( vfrag );
   vfrag = apply_fog( vfrag, fdist );

   oColour = vec4(vfrag, 1.0);
}