unity3d - Transvoxel/Marching cubes terrain 3D noise overhangs -


well i'm using 3d simplexnoise transvoxel terrain's noise values. surface smooth, here problem generates overhangs. i'm using following code noise: 

public float getnoise(int x, int y, int z, float frequency, float amplitude) {    return (minheight + (simplexnoise.noise(x * frequency, y * frequency,z * frequency) * amplitude)) + y; }

is there way prevent generation of overhangs?


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