概要

「unity-voxelizer」を Unity プロジェクトに導入することで
3Dオブジェクトをボクセル化できるようになります

使用例

f:id:baba_s:20181231115206p:plain

使い方

using UnityEngine;

public class Example : MonoBehaviour
{
    public GameObject m_voxelModel;

    private void Awake()
    {
        var bounds      = new Bounds( Vector3.zero, Vector3.one );
        var xDensity    = 8;
        var yDensity    = 8;
        var zDensity    = 8;
        var voxeliser   = new Voxeliser( bounds, xDensity, yDensity, zDensity );

        voxeliser.Voxelize( transform );

        var gridCubeSize = new Vector3
        (
            bounds.size.x / xDensity,
            bounds.size.y / yDensity,
            bounds.size.z / zDensity
        );
        var worldCentre     = bounds.min + gridCubeSize / 2;
        var voxelRoot       = new GameObject( "Voxel Root" );
        var rootTransform   = voxelRoot.transform;

        for ( int x = 0; x < xDensity; x++ )
        {
            for ( int y = 0; y < yDensity; y++ )
            {
                for ( int z = 0; z < zDensity; z++ )
                {
                    if ( voxeliser.VoxelMap[ x ][ y ][ z ] )
                    {
                        var pos = worldCentre + new Vector3
                        (
                            x * gridCubeSize.x,
                            y * gridCubeSize.y,
                            z * gridCubeSize.z
                        );
                        var go = Instantiate( m_voxelModel, pos, Quaternion.identity );
                        go.transform.localScale = gridCubeSize;
                        go.transform.SetParent( rootTransform, true );
                    }
                }
            }
        }
    }
}