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VARYING vec2 center_vec;
void MAIN()
{
center_vec = INPUT_UV - vec2(0.5, 0.5);
center_vec.y *= INPUT_SIZE.y / INPUT_SIZE.x;
}
VARYING vec2 center_vec;
void MAIN()
{
center_vec = INPUT_UV - vec2(0.5, 0.5);
center_vec.y *= INPUT_SIZE.y / INPUT_SIZE.x;
}