#version 150

uniform sampler2DArray sampler; //2D texture array

in vec3 normal;

in vec3 texCoord;

out vec4 fragColor;

void main (void) 

{

    vec3 b0 = normalize(normal);

    vec3 coord = texCoord;

    coord.z = floor(coord.z);

    vec4 a = texture(sampler, coord);

    coord.z += 1.0;

    vec4 b = texture(sampler, coord);

    fragColor = mix(a, b, fract(texCoord.z));

}