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++ #version 440
++
++ layout(location = 0) in vec2 v_texcoord;
++ layout(location = 0) out vec4 fragColor;
++ layout(binding = 0) uniform sampler2D tex;
++
++ void main()
++ {
++ vec2 size = vec2(textureSize(tex, 0));
++ vec2 d = vec2(1.0 / size.x, 1.0 / size.y);
++ fragColor = texture(tex, v_texcoord + d);
++ }