static void Report(VoxelizedMesh vm, float voxelResolution)
{
int voxelResolutionX = (int)voxelResolution / 8;
for (int x = 0; x < voxelResolutionX; x++)
{
for (int y = 0; y < voxelResolution; y++)
{
for (int z = 0; z < voxelResolution; z++)
{
Debug.Log(vm.volume[x, y, z]);
}
}
}
}
void OnSceneGUI()
{
VoxelizedMesh voxelizedMesh = target as VoxelizedMesh;
Handles.color = Color.green;
float size = voxelizedMesh.HalfSize * 2f;
foreach (Vector3Int gridPoint in voxelizedMesh.GridPoints)
{
Vector3 worldPos = voxelizedMesh.PointToPosition(gridPoint);
Handles.DrawWireCube(worldPos, new Vector3(size, size, size));
}
Handles.color = Color.red;
if (voxelizedMesh.TryGetComponent(out MeshCollider meshCollider))
{
Bounds bounds = meshCollider.bounds;
Handles.DrawWireCube(bounds.center, bounds.extents * 2);
}
}
VoxelizedMesh VoxelizeMesh(Transform t, float voxelResolution, int voxelizeLayer)
{
// TODO ray cast from right / left and top/ down
Physics.queriesHitBackfaces = false;
MeshRenderer mr = t.GetComponent <MeshRenderer>();
if (mr == null)
{
return(null);
}
MeshFilter mf = t.GetComponent <MeshFilter>();
if (mf == null)
{
return(null);
}
Mesh mesh = mf.sharedMesh;
if (mesh == null)
{
return(null);
}
VoxelizedMesh vm = new VoxelizedMesh();
voxelizedLookup[mesh] = vm;
Transform oldParent = t.parent;
Vector3 oldPos = t.position;
Quaternion oldRot = t.rotation;
Vector3 oldScale = t.localScale;
t.parent = null;
t.position = Vector3.zero;
t.rotation = Quaternion.identity;
t.localScale = Vector3.one;
int oldLayer = t.gameObject.layer;
t.gameObject.layer = voxelizeLayer;
LayerMask voxelizeLayerMask = 1 << voxelizeLayer;
Bounds bounds = mr.bounds;
Vector3 size = bounds.size;
Int3 voxels = new Int3(Mathf.CeilToInt(size.x / voxelResolution), Mathf.CeilToInt(size.y / voxelResolution), Mathf.CeilToInt(size.z / voxelResolution));
voxels += new Int3(2, 2, 2);
int voxelsX = Mathf.CeilToInt(voxels.x / 8f);
vm.voxels = voxels;
size = new Vector3(voxels.x * voxelResolution, voxels.y * voxelResolution, voxels.z * voxelResolution);
bounds.size = size;
vm.bounds = bounds;
byte[,,] volume = new byte[voxelsX, voxels.y, voxels.z];
Ray ray = new Ray();
Ray ray2 = new Ray();
ray.direction = Vector3.forward;
ray2.direction = Vector3.back;
Vector3 pos = bounds.min;
Vector3 pos2 = pos;
pos2.z = bounds.max.z;
Debug.Log(PrintVector3(mr.bounds.size) + " new size " + PrintVector3(size) + " voxels " + voxels.ToString());
int voxelCount = 0;
Vector3 halfVoxel = Vector3.one * voxelResolution * 0.5f;
Vector3 minBoundsVoxel = pos + halfVoxel;
// voxels.y = 2;
try
{
for (int x = 0; x < voxels.x; x++)
{
int xGrid = x / 8;
byte bit = bits[x - (xGrid * 8)];
for (int y = 0; y < voxels.y; y++)
{
Vector3 origin = pos + new Vector3((x + 0.5f) * voxelResolution, (y + 0.5f) * voxelResolution, 0);
ray.origin = origin;
origin.z = pos2.z;
ray2.origin = origin;
intersectList.Clear();
MultiCast(ray, intersectList, 0.001f, size.z, voxelizeLayerMask);
MultiCast(ray2, intersectList, -0.001f, size.z, voxelizeLayerMask);
intersectList.Sort();
float half = (float)intersectList.Count / 2;
if (half != (int)half)
{
continue;
}
// Debug.Log(hitInfos.Length + " " + hitInfos2.Length + " " + list.Count);
for (int i = 0; i < intersectList.Count; i += 2)
{
int z1 = Mathf.RoundToInt((intersectList[i] - pos.z) / voxelResolution);
int z2 = Mathf.RoundToInt((intersectList[i + 1] - pos.z) / voxelResolution);
for (int z = z1; z < z2; z++)
{
Vector3 voxelPos = new Vector3(x * voxelResolution, y * voxelResolution, z * voxelResolution) + minBoundsVoxel;
voxelPos = t.TransformPoint(voxelPos);
volume[xGrid, y, z] |= bit;
++voxelCount;
//if (!Physics.CheckBox(voxelPos, halfVoxel, Quaternion.identity, voxelizeLayerMask))
//{
// volume[xGrid, y, z] |= bit;
// ++voxelCount;
//}
}
}
}
}
}
catch (Exception e)
{
Debug.LogError(e.ToString());
}
Debug.Log(t.name + " voxels " + voxelCount);
vm.volume = volume;
t.gameObject.layer = oldLayer;
t.parent = oldParent;
t.position = oldPos;
t.rotation = oldRot;
t.localScale = oldScale;
return(vm);
}
