public static NPVoxModel TransformSocket(NPVoxModel sourceModel, string socketName, Matrix4x4 transformMatrix, NPVoxModel reuse = null)
{
NPVoxModel transformedModel = null;
transformedModel = NPVoxModel.NewInstance(sourceModel, reuse);
transformedModel.CopyOver(sourceModel);
NPVoxSocket[] sockets = new NPVoxSocket[sourceModel.Sockets.Length];
for (int i = 0; i < sockets.Length; i++)
{
NPVoxSocket socket = sourceModel.Sockets[i];
if (socket.Name == socketName)
{
// transform anchor
Vector3 saveOriginalAnchor = NPVoxCoordUtil.ToVector(socket.Anchor);
Vector3 saveTargetAnchor = transformMatrix.MultiplyPoint(saveOriginalAnchor);
socket.Anchor = sourceModel.Clamp(NPVoxCoordUtil.ToCoord(saveTargetAnchor));
// transform Quaternion
Quaternion originalRotation = Quaternion.Euler(socket.EulerAngles);
Matrix4x4 rotated = (Matrix4x4.TRS(Vector3.zero, originalRotation, Vector3.one) * transformMatrix);
socket.EulerAngles = Matrix4x4Util.GetRotation(rotated).eulerAngles;
}
sockets[i] = socket;
}
transformedModel.Sockets = sockets;
return(transformedModel);
}
override protected NPVoxModel CreateProduct(NPVoxModel reuse = null)
{
if (Input == null)
{
return(NPVoxModel.NewInvalidInstance(reuse, "No Input Setup"));;
}
NPVoxModel model = ((NPVoxIModelFactory)Input).GetProduct();
if (Absolute)
{
NPVoxModel newModel = NPVoxModel.NewInstance(model, reuse);
newModel.CopyOver(model);
NPVoxSocket socket = model.GetSocketByName(SocketName);
socket.Anchor = NPVoxCoordUtil.ToCoord(GetTranslation() + GetPivot());
socket.EulerAngles = GetRotation().eulerAngles;
newModel.SetSocket(socket);
return(newModel);
}
else
{
return(NPVoxModelTransformationUtil.MatrixTransformSocket(model, SocketName, Matrix, PivotOffset, reuse));
}
}
override protected NPVoxModel CreateProduct(NPVoxModel reuse = null)
{
if (Input == null)
{
return(NPVoxModel.NewInvalidInstance(reuse, "No Input Setup"));;
}
NPVoxModel model = ((NPVoxIModelFactory)Input).GetProduct() as NPVoxModel;
NPVoxModel newModel = NPVoxModel.NewInstance(model, NPVoxCoord.ZERO, reuse);
newModel.CopyOver(model);
bool addVoxelGroups = addVoxelGroup || newModel.HasVoxelGroups();
byte theVoxelGroup = (byte)255;
if (addVoxelGroups)
{
if (!newModel.HasVoxelGroups())
{
newModel.InitVoxelGroups();
foreach (NPVoxCoord coord in newModel.EnumerateVoxels())
{
newModel.SetVoxelGroup(coord, 0);
}
theVoxelGroup = 1;
newModel.NumVoxelGroups = 2;
}
else
{
theVoxelGroup = newModel.NumVoxelGroups;
newModel.NumVoxelGroups++;
}
}
Vector3 direction1 = rotation1 * Vector3.forward;
Vector3 direction2 = rotation2 * Vector3.forward;
bool[] usedColors = NPVoxModelUtils.GetUsedColors(newModel);
Color32[] colorTable = newModel.Colortable;
Vector3 currentP1 = NPVoxCoordUtil.ToVector(startCoord1);
Vector3 currentP2 = NPVoxCoordUtil.ToVector(startCoord2);
for (int i = 0; i < numSteps; i++)
{
byte color = NPVoxModelUtils.FindUnusedColor(ref usedColors);
colorTable[color] = Color32.Lerp(startColor, endColor, (float)i / (float)numSteps);
NPVoxGeomUtil.DrawLine(newModel, currentP1, currentP2, color, theVoxelGroup);
currentP1 += direction1 * stepSize1;
currentP2 += direction2 * stepSize2;
}
newModel.Colortable = colorTable;
newModel.RecalculateNumVoxels();
//
return(newModel);
}
public static NPVoxModel MatrixTransformSocket(NPVoxModel sourceModel, string socketName, Matrix4x4 matrix, Vector3 pivot, NPVoxModel reuse = null)
{
NPVoxSocket socket = sourceModel.GetSocketByName(socketName);
Vector3 pivotPoint = NPVoxCoordUtil.ToVector(socket.Anchor) + pivot;
Matrix4x4 transformMatrix = (Matrix4x4.TRS(pivotPoint, Quaternion.identity, Vector3.one) * matrix) * Matrix4x4.TRS(-pivotPoint, Quaternion.identity, Vector3.one);
return(TransformSocket(sourceModel, socketName, transformMatrix, reuse));
}
public NPVoxBox AddBox(NPVoxBone bone)
{
Undo.RecordObject(this, "Add Box");
List <NPVoxBox> boxes = GetBoxes(bone);
boxes.Add(new NPVoxBox(NPVoxCoordUtil.ToCoord(bone.Anchor), NPVoxCoordUtil.ToCoord(bone.Anchor) + NPVoxCoord.ONE));
return(boxes[boxes.Count - 1]);
}
override public Vector3 GetPivot()
{
NPVoxIModelFactory modelFactory = (Input as NPVoxIModelFactory);
if (modelFactory != null)
{
NPVoxSocket socket = modelFactory.GetProduct().GetSocketByName(SocketName);
return(this.PivotOffset + NPVoxCoordUtil.ToVector(socket.Anchor));
}
else
{
return(Vector3.zero);
}
}
override public void SetPivot(Vector3 pivot)
{
NPVoxIModelFactory modelFactory = (Input as NPVoxIModelFactory);
if (modelFactory != null)
{
NPVoxSocket socket = modelFactory.GetProduct().GetSocketByName(SocketName);
this.PivotOffset = pivot - NPVoxCoordUtil.ToVector(socket.Anchor);
}
else
{
this.PivotOffset = Vector3.zero;
}
}
public static NPVoxCoord GetNearbyCoord(NPVoxModel model, Vector3 saveCoord, ResolveConflictMethodType resolveConflictMethod)
{
NPVoxCoord favoriteCoord = NPVoxCoordUtil.ToCoord(saveCoord);
if (model.HasVoxelFast(favoriteCoord))
{
NPVoxBox box = new NPVoxBox(favoriteCoord - NPVoxCoord.ONE, favoriteCoord + NPVoxCoord.ONE);
favoriteCoord = NPVoxCoord.INVALID;
float nearestDistance = 9999f;
int favoriteEnclosingVoxelCount = -1;
foreach (NPVoxCoord currentTestCoord in box.Enumerate())
{
if (model.IsInside(currentTestCoord) && !model.HasVoxelFast(currentTestCoord))
{
if (resolveConflictMethod == ResolveConflictMethodType.CLOSEST)
{
float distance = Vector3.Distance(NPVoxCoordUtil.ToVector(currentTestCoord), saveCoord);
if (distance < nearestDistance)
{
nearestDistance = distance;
favoriteCoord = currentTestCoord;
}
}
else
{
int enclosingVoxelCount = 0;
NPVoxBox enclosingBoxCheck = new NPVoxBox(currentTestCoord - NPVoxCoord.ONE, currentTestCoord + NPVoxCoord.ONE);
foreach (NPVoxCoord enclosingTestCoord in enclosingBoxCheck.Enumerate())
{
if (model.IsInside(currentTestCoord) && model.HasVoxelFast(currentTestCoord))
{
enclosingVoxelCount++;
}
}
if (enclosingVoxelCount > favoriteEnclosingVoxelCount)
{
enclosingVoxelCount = favoriteEnclosingVoxelCount;
favoriteCoord = currentTestCoord;
}
}
}
}
}
return(favoriteCoord);
}
public static int DrawLine(NPVoxModel model, Vector3 P1, Vector3 P2, byte color, byte voxelGroup = 255, bool overwrite = false)
{
float lineDist = (P2 - P1).magnitude;
Vector3 lineDir = (P2 - P1).normalized;
Vector3 drawPoint = P1;
int addedVoxels = 0;
float currentLineDist = 0.0f;
// bool setVoxelGroup = voxelGroup < 255;
while (currentLineDist < lineDist)
{
NPVoxCoord coord = NPVoxCoordUtil.ToCoord(drawPoint);
if (!model.HasVoxel(coord) || overwrite)
{
model.SetVoxel(coord, color);
addedVoxels++;
model.SetVoxelGroup(coord, voxelGroup);
}
drawPoint += lineDir * 0.5f;
currentLineDist += 0.5f;
}
// model.NumVoxels += addedVoxels;
return(addedVoxels);
}
public static NPVoxModel Transform(NPVoxModel sourceModel, NPVoxBox affectedArea, Matrix4x4 transformMatrix, ResolveConflictMethodType resolveConflictMethod = ResolveConflictMethodType.CLOSEST, NPVoxModel reuse = null)
{
NPVoxBox clampedBox = sourceModel.Clamp(affectedArea);
// calculate size & offset for new model
NPVoxCoord size = sourceModel.Size;
NPVoxCoord offset = NPVoxCoord.ZERO;
{
NPVoxBox parentBounds = sourceModel.BoundingBox;
NPVoxBox thisBounds = parentBounds.Clone();
// transform voxels
foreach (NPVoxCoord coord in clampedBox.Enumerate())
{
Vector3 saveCoord = transformMatrix.MultiplyPoint(NPVoxCoordUtil.ToVector(coord));
NPVoxCoord newCoord = NPVoxCoordUtil.ToCoord(saveCoord);
if (!sourceModel.IsInside(newCoord))
{
thisBounds.EnlargeToInclude(newCoord);
}
}
// transform sockets
foreach (NPVoxSocket socket in sourceModel.Sockets)
{
NPVoxCoord newCoord = NPVoxCoordUtil.ToCoord(transformMatrix.MultiplyPoint(NPVoxCoordUtil.ToVector(socket.Anchor)));
if (clampedBox.Contains(socket.Anchor) && !sourceModel.IsInside(newCoord))
{
thisBounds.EnlargeToInclude(newCoord);
}
}
CalculateResizeOffset(parentBounds, thisBounds, out offset, out size);
}
bool hasVoxelGroups = sourceModel.HasVoxelGroups();
NPVoxBoneModel sourceBoneModel = sourceModel as NPVoxBoneModel;
bool hasBoneGropus = sourceBoneModel != null;
NPVoxModel transformedModel = NPVoxModel.NewInstance(sourceModel, size, reuse);
NPVoxBoneModel transformedBoneModel = transformedModel as NPVoxBoneModel;
if (hasVoxelGroups)
{
transformedModel.InitVoxelGroups();
transformedModel.NumVoxelGroups = sourceModel.NumVoxelGroups;
}
if (hasBoneGropus)
{
transformedBoneModel.AllBones = NPVoxBone.CloneBones(sourceBoneModel.AllBones);
}
// 1. copy all voxels over that are not affected by the transformation
transformedModel.NumVoxels = sourceModel.NumVoxels;
transformedModel.Colortable = sourceModel.Colortable;
foreach (NPVoxCoord coord in sourceModel.EnumerateVoxels())
{
NPVoxCoord movedCoord = coord + offset;
if (!clampedBox.Contains(coord))
{
transformedModel.SetVoxel(movedCoord, sourceModel.GetVoxel(coord));
if (hasVoxelGroups)
{
transformedModel.SetVoxelGroup(movedCoord, sourceModel.GetVoxelGroup(coord));
}
if (hasBoneGropus)
{
transformedBoneModel.SetBoneMask(movedCoord, sourceBoneModel.GetBoneMask(coord));
}
}
}
// 2. copy all voxels that can be tranformed without conflict,
Dictionary <NPVoxCoord, Vector3> conflictVoxels = new Dictionary <NPVoxCoord, Vector3>();
foreach (NPVoxCoord sourceCoord in clampedBox.Enumerate())
{
if (sourceModel.HasVoxelFast(sourceCoord))
{
Vector3 saveCoord = transformMatrix.MultiplyPoint(NPVoxCoordUtil.ToVector(sourceCoord));
Vector3 targetCoordSave = saveCoord + NPVoxCoordUtil.ToVector(offset);
NPVoxCoord targetCoord = NPVoxCoordUtil.ToCoord(targetCoordSave);
if (!transformedModel.HasVoxelFast(targetCoord))
{
transformedModel.SetVoxel(targetCoord, sourceModel.GetVoxel(sourceCoord));
if (hasVoxelGroups)
{
transformedModel.SetVoxelGroup(targetCoord, sourceModel.GetVoxelGroup(sourceCoord));
}
if (hasBoneGropus)
{
transformedBoneModel.SetBoneMask(targetCoord, sourceBoneModel.GetBoneMask(sourceCoord));
}
}
else
{
conflictVoxels[sourceCoord] = targetCoordSave;
}
}
}
// 3. try to fit in voxels that had conflicts
int numberOfConflictsSolved = 0;
if (resolveConflictMethod != ResolveConflictMethodType.NONE)
{
foreach (NPVoxCoord sourceCoord in conflictVoxels.Keys)
{
if (sourceModel.HasVoxelFast(sourceCoord))
{
Vector3 targetSaveCoord = conflictVoxels[sourceCoord];
NPVoxCoord nearbyCoord = GetNearbyCoord(transformedModel, targetSaveCoord, resolveConflictMethod);
if (!nearbyCoord.Equals(NPVoxCoord.INVALID))
{
transformedModel.SetVoxel(nearbyCoord, sourceModel.GetVoxel(sourceCoord));
if (hasVoxelGroups)
{
transformedModel.SetVoxelGroup(nearbyCoord, sourceModel.GetVoxelGroup(sourceCoord));
}
if (hasBoneGropus)
{
transformedBoneModel.SetBoneMask(nearbyCoord, sourceBoneModel.GetBoneMask(sourceCoord));
}
numberOfConflictsSolved++;
}
}
}
if (numberOfConflictsSolved != conflictVoxels.Count)
{
Debug.Log(string.Format("transformation has resolved {0}/{1} conflicting voxels", numberOfConflictsSolved, conflictVoxels.Count));
}
}
// 4. transform all sockets
NPVoxSocket[] sockets = new NPVoxSocket[sourceModel.Sockets.Length];
for (int i = 0; i < sockets.Length; i++)
{
NPVoxSocket socket = sourceModel.Sockets[i];
if (clampedBox.Contains(socket.Anchor))
{
// transform anchor
Vector3 saveOriginalAnchor = NPVoxCoordUtil.ToVector(socket.Anchor);
Vector3 saveTargetAnchor = transformMatrix.MultiplyPoint(saveOriginalAnchor) + NPVoxCoordUtil.ToVector(offset);
socket.Anchor = NPVoxCoordUtil.ToCoord(saveTargetAnchor);
// transform Quaternion
Quaternion originalRotation = Quaternion.Euler(socket.EulerAngles);
Matrix4x4 rotated = (Matrix4x4.TRS(Vector3.zero, originalRotation, Vector3.one) * transformMatrix);
socket.EulerAngles = Matrix4x4Util.GetRotation(rotated).eulerAngles;
}
else
{
socket.Anchor = socket.Anchor + offset;
}
sockets[i] = socket;
}
transformedModel.Sockets = sockets;
// 5. count all voxels
transformedModel.NumVoxels = transformedModel.NumVoxels - (conflictVoxels.Count - numberOfConflictsSolved);
transformedModel.RecalculateNumVoxels(true);
return(transformedModel);
}
public static NPVoxBox DrawBoxSelection(NPVoxToUnity npVoxToUnity, NPVoxBox box, bool editable = true)
{
Vector3 leftDownBack = npVoxToUnity.ToUnityPosition(box.LeftDownBack) - npVoxToUnity.VoxeSize * 0.5f;
Vector3 rightUpForward = npVoxToUnity.ToUnityPosition(box.RightUpForward) + npVoxToUnity.VoxeSize * 0.5f;
Vector3 rightDownBack = new Vector3(rightUpForward.x, leftDownBack.y, leftDownBack.z);
Vector3 leftUpBack = new Vector3(leftDownBack.x, rightUpForward.y, leftDownBack.z);
Vector3 rightUpBack = new Vector3(rightUpForward.x, rightUpForward.y, leftDownBack.z);
Vector3 leftDownForward = new Vector3(leftDownBack.x, leftDownBack.y, rightUpForward.z);
Vector3 rightDownForward = new Vector3(rightUpForward.x, leftDownBack.y, rightUpForward.z);
Vector3 leftUpForward = new Vector3(leftDownBack.x, rightUpForward.y, rightUpForward.z);
Handles.DrawDottedLine(leftDownBack, rightDownBack, 1f);
Handles.DrawDottedLine(leftDownBack, leftUpBack, 1f);
Handles.DrawDottedLine(leftUpBack, rightUpBack, 1f);
Handles.DrawDottedLine(rightDownBack, rightUpBack, 1f);
Handles.DrawDottedLine(leftDownForward, rightDownForward, 1f);
Handles.DrawDottedLine(leftDownForward, leftUpForward, 1f);
Handles.DrawDottedLine(leftUpForward, rightUpForward, 1f);
Handles.DrawDottedLine(rightDownForward, rightUpForward, 1f);
Handles.DrawDottedLine(leftDownBack, leftDownForward, 1f);
Handles.DrawDottedLine(rightDownBack, rightDownForward, 1f);
Handles.DrawDottedLine(leftUpBack, leftUpForward, 1f);
Handles.DrawDottedLine(rightUpBack, rightUpForward, 1f);
if (!editable)
{
return(box);
}
NPVoxBox newBox = new NPVoxBox(box.LeftDownBack, box.RightUpForward);
if (SceneView.currentDrawingSceneView.camera.orthographic)
{
NPVoxCoord oldCoord;
NPVoxCoord newCoord;
oldCoord = box.LeftDownBack;
newCoord = NPVoxHandles.DrawVoxelHandle(leftDownBack, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.LeftDownBack = newCoord;
}
oldCoord = box.RightDownBack;
newCoord = NPVoxHandles.DrawVoxelHandle(rightDownBack, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.RightDownBack = newCoord;
}
oldCoord = box.LeftUpBack;
newCoord = NPVoxHandles.DrawVoxelHandle(leftUpBack, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.LeftUpBack = newCoord;
}
oldCoord = box.RightUpBack;
newCoord = NPVoxHandles.DrawVoxelHandle(rightUpBack, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.RightUpBack = newCoord;
}
oldCoord = box.LeftDownForward;
newCoord = NPVoxHandles.DrawVoxelHandle(leftDownForward, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.LeftDownForward = newCoord;
}
oldCoord = box.RightDownForward;
newCoord = NPVoxHandles.DrawVoxelHandle(rightDownForward, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.RightDownForward = newCoord;
}
oldCoord = box.LeftUpForward;
newCoord = NPVoxHandles.DrawVoxelHandle(leftUpForward, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.LeftUpForward = newCoord;
}
oldCoord = box.RightUpForward;
newCoord = NPVoxHandles.DrawVoxelHandle(rightUpForward, oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.RightUpForward = newCoord;
}
// center mover
oldCoord = box.LeftDownBack;
newCoord = NPVoxHandles.DrawVoxelHandle(npVoxToUnity.ToUnityPosition(box.SaveCenter), oldCoord, npVoxToUnity);
if (!newCoord.Equals(oldCoord))
{
newBox.SaveCenter += NPVoxCoordUtil.ToVector(newCoord - oldCoord);
}
}
else
{
sbyte oldPos;
sbyte newPos;
Vector3 handlePos;
handlePos = new Vector3(leftDownBack.x + (rightUpForward.x - leftDownBack.x) / 2, leftDownBack.y + (rightUpForward.y - leftDownBack.y) / 2, leftDownBack.z);
oldPos = box.Back;
newPos = NPVoxHandles.DrawAxisHandle(handlePos, oldPos, npVoxToUnity, Vector3.forward);
if (oldPos != newPos)
{
newBox.Back = newPos;
}
handlePos = new Vector3(leftDownBack.x + (rightUpForward.x - leftDownBack.x) / 2, leftDownBack.y + (rightUpForward.y - leftDownBack.y) / 2, rightUpForward.z);
oldPos = box.Forward;
newPos = NPVoxHandles.DrawAxisHandle(handlePos, oldPos, npVoxToUnity, Vector3.forward);
if (oldPos != newPos)
{
newBox.Forward = newPos;
}
handlePos = new Vector3(leftDownBack.x + (rightUpForward.x - leftDownBack.x) / 2, leftDownBack.y, leftDownBack.z + (rightUpForward.z - leftDownBack.z) / 2);
oldPos = box.Down;
newPos = NPVoxHandles.DrawAxisHandle(handlePos, oldPos, npVoxToUnity, Vector3.up);
if (oldPos != newPos)
{
newBox.Down = newPos;
}
handlePos = new Vector3(leftDownBack.x + (rightUpForward.x - leftDownBack.x) / 2, rightUpForward.y, leftDownBack.z + (rightUpForward.z - leftDownBack.z) / 2);
oldPos = box.Up;
newPos = NPVoxHandles.DrawAxisHandle(handlePos, oldPos, npVoxToUnity, Vector3.up);
if (oldPos != newPos)
{
newBox.Up = newPos;
}
handlePos = new Vector3(leftDownBack.x, leftDownBack.y + (rightUpForward.y - leftDownBack.y) / 2, leftDownBack.z + (rightUpForward.z - leftDownBack.z) / 2);
oldPos = box.Left;
newPos = NPVoxHandles.DrawAxisHandle(handlePos, oldPos, npVoxToUnity, Vector3.right);
if (oldPos != newPos)
{
newBox.Left = newPos;
}
handlePos = new Vector3(rightUpForward.x, leftDownBack.y + (rightUpForward.y - leftDownBack.y) / 2, leftDownBack.z + (rightUpForward.z - leftDownBack.z) / 2);
oldPos = box.Right;
newPos = NPVoxHandles.DrawAxisHandle(handlePos, oldPos, npVoxToUnity, Vector3.right);
if (oldPos != newPos)
{
newBox.Right = newPos;
}
}
return(newBox);
}
public override void Process(NPVoxModel model, NPVoxMeshData tempdata, Vector3[] inNormals, ref Vector3[] outNormals)
{
// calculate normals based on present neighbour voxels
Vector3 voxelNormal = Vector3.zero;
if (!tempdata.isHidden)
{
foreach (NPVoxCoord offset in voxelNormalNeighbours.Enumerate())
{
NPVoxCoord checkCoord = tempdata.voxCoord + offset;
checkCoord = model.LoopCoord(checkCoord, tempdata.loop);
if (!model.HasVoxel(checkCoord))
{
voxelNormal += NPVoxCoordUtil.ToVector(offset);
}
}
voxelNormal.Normalize();
}
else
{
voxelNormal = tempdata.voxelCenter.normalized;
}
for (int t = 0; t < tempdata.numVertices; t++)
{
Vector3 normal = Vector3.zero;
switch (m_normalMode)
{
case NPVoxNormalMode.VOXEL:
normal = voxelNormal;
normal = Vector3.zero;
if (tempdata.vertexPositionOffsets[t].x < 0.0f)
{
if (tempdata.hasLeft && !tempdata.hasForward && !tempdata.hasBack && !tempdata.hasUp && !tempdata.hasDown)
{
normal.x = -1;
}
else
{
normal.x = voxelNormal.x;
}
}
else if (tempdata.vertexPositionOffsets[t].x > 0.0f)
{
if (tempdata.hasRight && !tempdata.hasForward && !tempdata.hasBack && !tempdata.hasUp && !tempdata.hasDown)
{
normal.x = 1;
}
else
{
normal.x = voxelNormal.x;
}
}
if (tempdata.vertexPositionOffsets[t].y < 0.0f)
{
if (tempdata.hasUp && !tempdata.hasForward && !tempdata.hasBack && !tempdata.hasLeft && !tempdata.hasRight)
{
normal.y = -1;
}
else
{
normal.y = voxelNormal.y;
}
}
else if (tempdata.vertexPositionOffsets[t].y > 0.0f)
{
if (tempdata.hasDown && !tempdata.hasForward && !tempdata.hasBack && !tempdata.hasLeft && !tempdata.hasRight)
{
normal.y = +1;
}
else
{
normal.y = voxelNormal.y;
}
}
if (tempdata.vertexPositionOffsets[t].z < 0.0f)
{
if (tempdata.hasBack && !tempdata.hasLeft && !tempdata.hasRight && !tempdata.hasUp && !tempdata.hasDown)
{
normal.z = -1;
}
else
{
normal.z = voxelNormal.z;
}
}
else if (tempdata.vertexPositionOffsets[t].z > 0.0f)
{
if (tempdata.hasForward && !tempdata.hasLeft && !tempdata.hasRight && !tempdata.hasUp && !tempdata.hasDown)
{
normal.z = +1;
}
else
{
normal.z = voxelNormal.z;
}
}
if (Mathf.Abs(normal.x) < 0.1f && Mathf.Abs(normal.y) < 0.1f && Mathf.Abs(normal.z) < 0.1f)
{
// we would like to have full color when we are a stand-alone voxel, however there is no way to do so right now, so we just
// fallback to the centoid normal
normal = tempdata.voxelCenter;
}
normal.Normalize();
break;
case NPVoxNormalMode.SMOOTH:
normal = Vector3.zero;
for (float xx = -0.5f; xx < 1.0f; xx += 1f)
{
for (float yy = -.5f; yy < 1; yy += 1)
{
for (float zz = -.5f; zz < 1; zz += 1)
{
sbyte xCoord = ( sbyte )Mathf.Round(tempdata.vertexPositionOffsets[t].x + xx);
sbyte yCoord = ( sbyte )Mathf.Round(tempdata.vertexPositionOffsets[t].y + yy);
sbyte zCoord = ( sbyte )Mathf.Round(tempdata.vertexPositionOffsets[t].z + zz);
if (!model.HasVoxel(tempdata.voxCoord + new NPVoxCoord(( sbyte )xCoord, ( sbyte )yCoord, ( sbyte )zCoord)))
{
normal += new Vector3(
xx,
yy,
zz
);
}
}
}
}
normal.Normalize();
break;
case NPVoxNormalMode.FORWARD: normal = Vector3.forward; break;
case NPVoxNormalMode.BACK: normal = Vector3.back; break;
case NPVoxNormalMode.UP: normal = Vector3.up; break;
case NPVoxNormalMode.DOWN: normal = Vector3.down; break;
case NPVoxNormalMode.LEFT: normal = Vector3.left; break;
case NPVoxNormalMode.RIGHT: normal = Vector3.right; break;
}
outNormals[tempdata.vertexIndexOffsetBegin + t] = normal;
}
}
public static void CreateMesh(
NPVoxModel model,
Mesh mesh,
Vector3 cubeSize,
Vector3 NormalVariance,
int NormalVarianceSeed = 0,
NPVoxOptimization optimization = NPVoxOptimization.OFF,
NPVoxNormalMode NormalMode = NPVoxNormalMode.SMOOTH,
int BloodColorIndex = 0,
NPVoxFaces loop = null,
NPVoxFaces cutout = null,
NPVoxFaces include = null,
int MinVertexGroups = 1,
NPVoxNormalMode[] NormalModePerVoxelGroup = null
)
{
bool hasVoxelGroups = model.HasVoxelGroups();
var vertices = new Vector3[model.NumVoxels * 8];
byte vertexGroupCount = model.NumVoxelGroups;
var triangles = new int[vertexGroupCount, model.NumVoxels * 36];
var normals = new Vector3[model.NumVoxels * 8];
var tangents = new Vector4[model.NumVoxels * 8];
var colors = new Color[model.NumVoxels * 8];
int currentVertexIndex = 0;
var currentTriangleIndex = new int[vertexGroupCount];
for (int i = 0; i < vertexGroupCount; i++)
{
currentTriangleIndex[i] = 0;
}
UnityEngine.Random.InitState(NormalVarianceSeed);
if (loop == null)
{
loop = new NPVoxFaces();
}
if (include == null)
{
include = new NPVoxFaces(1, 1, 1, 1, 1, 1);
}
NPVoxBox voxelsToInclude = model.BoundingBox;
Vector3 cutoutOffset = Vector3.zero;
if (cutout != null)
{
Vector3 originalCenter = voxelsToInclude.SaveCenter;
voxelsToInclude.Left = (sbyte)Mathf.Abs(cutout.Left);
voxelsToInclude.Down = (sbyte)Mathf.Abs(cutout.Down);
voxelsToInclude.Back = (sbyte)Mathf.Abs(cutout.Back);
voxelsToInclude.Right = (sbyte)(voxelsToInclude.Right - (sbyte)Mathf.Abs(cutout.Right));
voxelsToInclude.Up = (sbyte)(voxelsToInclude.Up - (sbyte)Mathf.Abs(cutout.Up));
voxelsToInclude.Forward = (sbyte)(voxelsToInclude.Forward - (sbyte)Mathf.Abs(cutout.Forward));
cutoutOffset = Vector3.Scale(originalCenter - voxelsToInclude.SaveCenter, cubeSize);
}
NPVoxToUnity npVoxToUnity = new NPVoxToUnity(model, cubeSize);
Vector3 size = new Vector3(
voxelsToInclude.Size.X * cubeSize.x,
voxelsToInclude.Size.Y * cubeSize.y,
voxelsToInclude.Size.Z * cubeSize.z
);
NPVoxBox voxelNormalNeighbours = new NPVoxBox(new NPVoxCoord(-1, -1, -1), new NPVoxCoord(1, 1, 1));
NPVoxNormalMode normalMode = NormalMode;
foreach (NPVoxCoord voxCoord in voxelsToInclude.Enumerate())
{
if (model.HasVoxel(voxCoord))
{
Vector3 voxelCenter = npVoxToUnity.ToUnityPosition(voxCoord) + cutoutOffset;
int vertexGroupIndex = 0;
if (hasVoxelGroups)
{
vertexGroupIndex = model.GetVoxelGroup(voxCoord);
}
if (NormalModePerVoxelGroup != null && NormalModePerVoxelGroup.Length > vertexGroupIndex)
{
normalMode = NormalModePerVoxelGroup[vertexGroupIndex];
}
else
{
normalMode = NormalMode;
}
// do we have this side
bool hasLeft = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.LEFT, loop));
bool hasRight = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.RIGHT, loop));
bool hasDown = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.DOWN, loop));
bool hasUp = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.UP, loop));
bool hasForward = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.FORWARD, loop));
bool hasBack = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.BACK, loop));
// do we actually want to include this side in our mesh
// NOTE: cutout < 0 means we still render the mesh even though it is cutout
// cutout > 0 means we don't render the mesh when cutout
bool includeLeft = (hasLeft || (cutout.Left < 0 && voxCoord.X == voxelsToInclude.Left)) && include.Left == 1;
bool includeRight = (hasRight || (cutout.Right < 0 && voxCoord.X == voxelsToInclude.Right)) && include.Right == 1;
bool includeUp = (hasUp || (cutout.Up < 0 && voxCoord.Y == voxelsToInclude.Up)) && include.Up == 1;
bool includeDown = (hasDown || (cutout.Down < 0 && voxCoord.Y == voxelsToInclude.Down)) && include.Down == 1;
bool includeBack = (hasBack || (cutout.Back < 0 && voxCoord.Z == voxelsToInclude.Back)) && include.Back == 1;
bool includeForward = (hasForward || (cutout.Forward < 0 && voxCoord.Z == voxelsToInclude.Forward)) && include.Forward == 1;
bool isHidden = !hasForward && !hasBack && !hasLeft && !hasRight && !hasUp && !hasDown;
if (isHidden && optimization == NPVoxOptimization.PER_VOXEL)
{
continue;
}
if (isHidden && BloodColorIndex > 0)
{
model.SetVoxel(voxCoord, (byte)BloodColorIndex); // WTF WTF WTF?!? we should not modify the MODEL in here !!!!
}
Color color = model.GetColor(voxCoord);
// prepare cube vertices
int numVertices = 0;
int[] vertexIndexOffsets = new int[8];
Vector3[] vertexPositionOffsets = new Vector3[8];
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeLeft || includeDown)
{
vertexIndexOffsets[0] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[0]] = new Vector3(-0.5f, -0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeRight || includeDown)
{
vertexIndexOffsets[1] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[1]] = new Vector3(0.5f, -0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeLeft || includeUp)
{
vertexIndexOffsets[2] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[2]] = new Vector3(-0.5f, 0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeRight || includeUp)
{
vertexIndexOffsets[3] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[3]] = new Vector3(0.5f, 0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeLeft || includeDown)
{
vertexIndexOffsets[4] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[4]] = new Vector3(-0.5f, -0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeRight || includeDown)
{
vertexIndexOffsets[5] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[5]] = new Vector3(0.5f, -0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeLeft || includeUp)
{
vertexIndexOffsets[6] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[6]] = new Vector3(-0.5f, 0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeRight || includeUp)
{
vertexIndexOffsets[7] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[7]] = new Vector3(0.5f, 0.5f, 0.5f);
}
// add cube faces
int i = currentTriangleIndex[vertexGroupIndex];
// back
if (optimization != NPVoxOptimization.PER_FACE || includeBack)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[0];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
}
// Forward
if (optimization != NPVoxOptimization.PER_FACE || includeForward)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[7];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
}
// right
if (optimization != NPVoxOptimization.PER_FACE || includeRight)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[7];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
}
// left
if (optimization != NPVoxOptimization.PER_FACE || includeLeft)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[0];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
}
// up
if (optimization != NPVoxOptimization.PER_FACE || includeUp)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[7];
}
// down
if (optimization != NPVoxOptimization.PER_FACE || includeDown)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[0];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
}
// TODO create some kind of strategy pattern for the normal calculation, else this here is becomming a mess ...
Vector3 variance = Vector3.zero;
if (NormalVariance.x != 0 || NormalVariance.y != 0 || NormalVariance.z != 0)
{
variance.x = -NormalVariance.x * 0.5f + 2 * UnityEngine.Random.value * NormalVariance.x;
variance.y = -NormalVariance.y * 0.5f + 2 * UnityEngine.Random.value * NormalVariance.y;
variance.z = -NormalVariance.z * 0.5f + 2 * UnityEngine.Random.value * NormalVariance.z;
}
// calculate normals based on present neighbour voxels
Vector3 voxelNormal = Vector3.zero;
if (!isHidden)
{
foreach (NPVoxCoord offset in voxelNormalNeighbours.Enumerate())
{
NPVoxCoord checkCoord = voxCoord + offset;
checkCoord = model.LoopCoord(checkCoord, loop);
if (!model.HasVoxel(checkCoord))
{
voxelNormal += NPVoxCoordUtil.ToVector(offset);
}
}
voxelNormal.Normalize();
}
else
{
voxelNormal = voxelCenter.normalized;
}
// Normals
for (int t = 0; t < numVertices; t++)
{
Vector3 normal = Vector3.zero;
switch (normalMode)
{
case NPVoxNormalMode.VOXEL:
normal = voxelNormal;
normal = Vector3.zero;
if (vertexPositionOffsets[t].x < 0.0f)
{
if (hasLeft && !hasForward && !hasBack && !hasUp && !hasDown)
{
normal.x = -1;
}
else
{
normal.x = voxelNormal.x;
}
}
else if (vertexPositionOffsets[t].x > 0.0f)
{
if (hasRight && !hasForward && !hasBack && !hasUp && !hasDown)
{
normal.x = 1;
}
else
{
normal.x = voxelNormal.x;
}
}
if (vertexPositionOffsets[t].y < 0.0f)
{
if (hasUp && !hasForward && !hasBack && !hasLeft && !hasRight)
{
normal.y = -1;
}
else
{
normal.y = voxelNormal.y;
}
}
else if (vertexPositionOffsets[t].y > 0.0f)
{
if (hasDown && !hasForward && !hasBack && !hasLeft && !hasRight)
{
normal.y = +1;
}
else
{
normal.y = voxelNormal.y;
}
}
if (vertexPositionOffsets[t].z < 0.0f)
{
if (hasBack && !hasLeft && !hasRight && !hasUp && !hasDown)
{
normal.z = -1;
}
else
{
normal.z = voxelNormal.z;
}
}
else if (vertexPositionOffsets[t].z > 0.0f)
{
if (hasForward && !hasLeft && !hasRight && !hasUp && !hasDown)
{
normal.z = +1;
}
else
{
normal.z = voxelNormal.z;
}
}
if (Mathf.Abs(normal.x) < 0.1f && Mathf.Abs(normal.y) < 0.1f && Mathf.Abs(normal.z) < 0.1f)
{
// we would like to have full color when we are a stand-alone voxel, however there is no way to do so right now, so we just
// fallback to the centoid normal
normal = voxelCenter;
}
normal.Normalize();
break;
case NPVoxNormalMode.SMOOTH:
normal = Vector3.zero;
for (float xx = -0.5f; xx < 1.0f; xx += 1f)
{
for (float yy = -.5f; yy < 1; yy += 1)
{
for (float zz = -.5f; zz < 1; zz += 1)
{
sbyte xCoord = (sbyte)Mathf.Round(vertexPositionOffsets[t].x + xx);
sbyte yCoord = (sbyte)Mathf.Round(vertexPositionOffsets[t].y + yy);
sbyte zCoord = (sbyte)Mathf.Round(vertexPositionOffsets[t].z + zz);
if (!model.HasVoxel(voxCoord + new NPVoxCoord((sbyte)xCoord, (sbyte)yCoord, (sbyte)zCoord)))
{
normal += new Vector3(
xx,
yy,
zz
);
}
}
}
}
normal.Normalize();
break;
case NPVoxNormalMode.FORWARD: normal = Vector3.forward; break;
case NPVoxNormalMode.BACK: normal = Vector3.back; break;
case NPVoxNormalMode.UP: normal = Vector3.up; break;
case NPVoxNormalMode.DOWN: normal = Vector3.down; break;
case NPVoxNormalMode.LEFT: normal = Vector3.left; break;
case NPVoxNormalMode.RIGHT: normal = Vector3.right; break;
}
normals[currentVertexIndex + t] = (normal + variance).normalized;
// store voxel center for shader usage
Vector4 tangent = new Vector4();
tangent.x = voxelCenter.x;
tangent.y = voxelCenter.y;
tangent.z = voxelCenter.z;
// encode model size
tangent.w = ((voxelsToInclude.Size.X & 0x7F) << 14) | ((voxelsToInclude.Size.Y & 0x7F) << 7) | (voxelsToInclude.Size.Z & 0x7F);
tangents[currentVertexIndex + t] = tangent;
}
// UVs
for (int t = 0; t < numVertices; t++)
{
colors[currentVertexIndex + t] = color;
}
// translate & scale vertices to voxel position
for (int t = 0; t < numVertices; t++)
{
vertices[currentVertexIndex + t] = voxelCenter + Vector3.Scale(vertexPositionOffsets[t], cubeSize);
}
currentTriangleIndex[vertexGroupIndex] = i;
currentVertexIndex += numVertices;
}
}
// shrink arrays as needed
if (optimization != NPVoxOptimization.OFF)
{
Array.Resize(ref vertices, currentVertexIndex);
Array.Resize(ref normals, currentVertexIndex);
Array.Resize(ref tangents, currentVertexIndex);
Array.Resize(ref colors, currentVertexIndex);
}
mesh.vertices = vertices;
if (hasVoxelGroups)
{
mesh.subMeshCount = Math.Max(vertexGroupCount, MinVertexGroups);
for (int i = 0; i < vertexGroupCount; i++)
{
int numberOfTrianglesForVertexGroup = currentTriangleIndex[i];
int[] trianglesForVertexGroup = new int[numberOfTrianglesForVertexGroup];
for (int j = 0; j < numberOfTrianglesForVertexGroup; j++)
{
trianglesForVertexGroup[j] = triangles[i, j];
}
mesh.SetTriangles(trianglesForVertexGroup, i);
}
}
else
{
int numberOfTrianglesForVertexGroup = currentTriangleIndex[0];
int[] trianglesForVertexGroup = new int[numberOfTrianglesForVertexGroup];
Buffer.BlockCopy(triangles, 0,
trianglesForVertexGroup, 0,
numberOfTrianglesForVertexGroup * sizeof(int));
if (MinVertexGroups < 2)
{
mesh.triangles = trianglesForVertexGroup;
}
else
{
mesh.subMeshCount = MinVertexGroups;
mesh.SetTriangles(trianglesForVertexGroup, 0);
}
}
mesh.normals = normals;
mesh.tangents = tangents;
mesh.colors = colors;
mesh.bounds = new Bounds(Vector3.zero, size);
if (NormalMode == NPVoxNormalMode.AUTO)
{
mesh.RecalculateNormals();
}
}
