Issue with marching cubes, anyone willing to have a peek at this?

[JFarrow (JohnF)]

@RianeN

float AWorldChunk::CalculateDensity(const FVector& worldPos)
{
    noiseScale = 0.1f; // Adjust the noise scale to control the level of detail
    float noiseValue = FMath::PerlinNoise3D(worldPos * noiseScale);

    threshold = 0.5f; // Adjust the threshold to control the terrain shape
    return noiseValue - threshold;
}

This looks odd. FMath::PerlinNoise3D returns in the range -1, 1 and you are subtracting 0.5 to make the range -1.5, 0.5, so 3/4 of your density values are going to be negative - is that what you intend?