public override bool AddDeleteGameObjectsByID(GameObject[] gos, int[] deleteGOinstanceIDs, bool disableRendererInSource = true)
{
//Profile.Start//Profile("MB2_MultiMeshCombiner.AddDeleteGameObjects1");
//PART 1 ==== Validate
if (_usingTemporaryTextureBakeResult && gos != null && gos.Length > 0)
{
_textureBakeResults = null;
_usingTemporaryTextureBakeResult = false;
}
//if all objects use the same material we can create a temporary _textureBakeResults
if (_textureBakeResults == null && gos != null && gos.Length > 0 && gos[0] != null)
{
if (!_CreateTemporaryTextrueBakeResult(gos))
{
return(false);
}
}
if (!_validate(gos, deleteGOinstanceIDs))
{
return(false);
}
_distributeAmongBakers(gos, deleteGOinstanceIDs);
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("MB2_MultiMeshCombiner.AddDeleteGameObjects numCombinedMeshes: " + meshCombiners.Count + " added:" + gos + " deleted:" + deleteGOinstanceIDs + " disableRendererInSource:" + disableRendererInSource + " maxVertsPerCombined:" + _maxVertsInMesh);
}
return(_bakeStep1(gos, deleteGOinstanceIDs, disableRendererInSource));
}
public static Vector2[] GetMeshUV3orUV4(Mesh m, bool get3, MBLogLevel LOG_LEVEL)
{
Vector2[] uvs;
if (get3)
{
uvs = m.uv3;
}
else
{
uvs = m.uv4;
}
if (uvs.Length == 0)
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Mesh " + m + " has no uv" + (get3 ? "3" : "4") + ". Generating");
}
uvs = new Vector2[m.vertexCount];
for (int i = 0; i < uvs.Length; i++)
{
uvs[i] = _HALF_UV;
}
}
return(uvs);
}
public static Vector2[] GetMeshUV1s(Mesh m, MBLogLevel LOG_LEVEL)
{
Vector2[] uv;
if (LOG_LEVEL >= MBLogLevel.warn)
{
MBLog.LogDebug("UV1 does not exist in Unity 5+");
}
uv = m.uv;
if (uv.Length == 0)
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Mesh " + m + " has no uv1s. Generating");
}
if (LOG_LEVEL >= MBLogLevel.warn)
{
Debug.LogWarning("Mesh " + m + " didn't have uv1s. Generating uv1s.");
}
uv = new Vector2[m.vertexCount];
for (int i = 0; i < uv.Length; i++)
{
uv[i] = _HALF_UV;
}
}
return(uv);
}
Rect[] _GetRects(List <Vector2> imgWidthHeights, int maxDimension, int padding, int minImageSizeX, int minImageSizeY, int masterImageSizeX, int masterImageSizeY, out int outW, out int outH, int recursionDepth)
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
Debug.Log(String.Format("_GetRects numImages={0}, maxDimension={1}, padding={2}, minImageSizeX={3}, minImageSizeY={4}, masterImageSizeX={5}, masterImageSizeY={6}, recursionDepth={7}",
imgWidthHeights.Count, maxDimension, padding, minImageSizeX, minImageSizeY, masterImageSizeX, masterImageSizeY, recursionDepth));
}
if (recursionDepth > 10)
{
Debug.LogError("Maximum recursion depth reached. Couldn't find packing for these textures.");
outW = 0;
outH = 0;
return(new Rect[0]);
}
float area = 0;
int maxW = 0;
int maxH = 0;
Image[] imgsToAdd = new Image[imgWidthHeights.Count];
for (int i = 0; i < imgsToAdd.Length; i++)
{
Image im = imgsToAdd[i] = new Image(i, (int)imgWidthHeights[i].x, (int)imgWidthHeights[i].y, padding, minImageSizeX, minImageSizeY);
area += im.w * im.h;
maxW = Mathf.Max(maxW, im.w);
maxH = Mathf.Max(maxH, im.h);
}
if ((float)maxH / (float)maxW > 2)
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Using height Comparer");
}
Array.Sort(imgsToAdd, new ImageHeightComparer());
}
else if ((float)maxH / (float)maxW < .5)
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Using width Comparer");
}
Array.Sort(imgsToAdd, new ImageWidthComparer());
}
else
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Using area Comparer");
}
Array.Sort(imgsToAdd, new ImageAreaComparer());
}
//explore the space to find a resonably efficient packing
int sqrtArea = (int)Mathf.Sqrt(area);
int idealAtlasW;
int idealAtlasH;
if (doPowerOfTwoTextures)
{
idealAtlasW = idealAtlasH = RoundToNearestPositivePowerOfTwo(sqrtArea);
if (maxW > idealAtlasW)
{
idealAtlasW = CeilToNearestPowerOfTwo(idealAtlasW);
}
if (maxH > idealAtlasH)
{
idealAtlasH = CeilToNearestPowerOfTwo(idealAtlasH);
}
}
else
{
idealAtlasW = sqrtArea;
idealAtlasH = sqrtArea;
if (maxW > sqrtArea)
{
idealAtlasW = maxW;
idealAtlasH = Mathf.Max(Mathf.CeilToInt(area / maxW), maxH);
}
if (maxH > sqrtArea)
{
idealAtlasW = Mathf.Max(Mathf.CeilToInt(area / maxH), maxW);
idealAtlasH = maxH;
}
}
if (idealAtlasW == 0)
{
idealAtlasW = 1;
}
if (idealAtlasH == 0)
{
idealAtlasH = 1;
}
int stepW = (int)(idealAtlasW * .15f);
int stepH = (int)(idealAtlasH * .15f);
if (stepW == 0)
{
stepW = 1;
}
if (stepH == 0)
{
stepH = 1;
}
int numWIterations = 2;
int steppedWidth = idealAtlasW;
int steppedHeight = idealAtlasH;
while (numWIterations >= 1 && steppedHeight < sqrtArea * 1000)
{
bool successW = false;
numWIterations = 0;
steppedWidth = idealAtlasW;
while (!successW && steppedWidth < sqrtArea * 1000)
{
ProbeResult pr = new ProbeResult();
if (LOG_LEVEL >= MBLogLevel.trace)
{
Debug.Log("Probing h=" + steppedHeight + " w=" + steppedWidth);
}
if (Probe(imgsToAdd, steppedWidth, steppedHeight, area, maxDimension, pr))
{
successW = true;
if (bestRoot == null)
{
bestRoot = pr;
}
else if (pr.GetScore(doPowerOfTwoTextures) > bestRoot.GetScore(doPowerOfTwoTextures))
{
bestRoot = pr;
}
}
else
{
numWIterations++;
steppedWidth = StepWidthHeight(steppedWidth, stepW, maxDimension);
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("increasing Width h=" + steppedHeight + " w=" + steppedWidth);
}
}
}
steppedHeight = StepWidthHeight(steppedHeight, stepH, maxDimension);
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("increasing Height h=" + steppedHeight + " w=" + steppedWidth);
}
}
outW = 0;
outH = 0;
if (doPowerOfTwoTextures)
{
outW = Mathf.Min(CeilToNearestPowerOfTwo(bestRoot.w), maxDimension);
outH = Mathf.Min(CeilToNearestPowerOfTwo(bestRoot.h), maxDimension);
if (outH < outW / 2)
{
outH = outW / 2; //smaller dim can't be less than half larger
}
if (outW < outH / 2)
{
outW = outH / 2;
}
}
else
{
outW = bestRoot.w;
outH = bestRoot.h;
}
if (bestRoot == null)
{
return(null);
}
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Best fit found: atlasW=" + outW + " atlasH" + outH + " w=" + bestRoot.w + " h=" + bestRoot.h + " efficiency=" + bestRoot.efficiency + " squareness=" + bestRoot.squareness + " fits in max dimension=" + bestRoot.fitsInMaxSize);
}
List <Image> images = new List <Image>();
flattenTree(bestRoot.root, images);
images.Sort(new ImgIDComparer());
if (images.Count != imgsToAdd.Length)
{
Debug.LogError("Result images not the same lentgh as source");
}
//scale images if too large
int newMinSizeX = minImageSizeX;
int newMinSizeY = minImageSizeY;
bool redoPacking = false;
float padX = (float)padding / (float)outW;
if (bestRoot.w > maxDimension)
{
//float minSizeX = ((float)minImageSizeX + 1) / maxDimension;
padX = (float)padding / (float)maxDimension;
float scaleFactor = (float)maxDimension / (float)bestRoot.w;
if (LOG_LEVEL >= MBLogLevel.warn)
{
Debug.LogWarning("Packing exceeded atlas width shrinking to " + scaleFactor);
}
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
if (im.w * scaleFactor < masterImageSizeX) //check if small images will be rounded too small. If so need to redo packing forcing a larger min size
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
Debug.Log("Small images are being scaled to zero. Will need to redo packing with larger minTexSizeX.");
}
redoPacking = true;
newMinSizeX = Mathf.CeilToInt(minImageSizeX / scaleFactor);
}
int right = (int)((im.x + im.w) * scaleFactor);
im.x = (int)(scaleFactor * im.x);
im.w = right - im.x;
}
outW = maxDimension;
}
float padY = (float)padding / (float)outH;
if (bestRoot.h > maxDimension)
{
//float minSizeY = ((float)minImageSizeY + 1) / maxDimension;
padY = (float)padding / (float)maxDimension;
float scaleFactor = (float)maxDimension / (float)bestRoot.h;
if (LOG_LEVEL >= MBLogLevel.warn)
{
Debug.LogWarning("Packing exceeded atlas height shrinking to " + scaleFactor);
}
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
if (im.h * scaleFactor < masterImageSizeY) //check if small images will be rounded too small. If so need to redo packing forcing a larger min size
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
Debug.Log("Small images are being scaled to zero. Will need to redo packing with larger minTexSizeY.");
}
redoPacking = true;
newMinSizeY = Mathf.CeilToInt(minImageSizeY / scaleFactor);
}
int bottom = (int)((im.y + im.h) * scaleFactor);
im.y = (int)(scaleFactor * im.y);
im.h = bottom - im.y;
}
outH = maxDimension;
}
Rect[] rs;
if (!redoPacking)
{
rs = new Rect[images.Count];
for (int i = 0; i < images.Count; i++)
{
Image im = images[i];
Rect r = rs[i] = new Rect((float)im.x / (float)outW + padX,
(float)im.y / (float)outH + padY,
(float)im.w / (float)outW - padX * 2f,
(float)im.h / (float)outH - padY * 2f);
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Image: " + i + " imgID=" + im.imgId + " x=" + r.x * outW +
" y=" + r.y * outH + " w=" + r.width * outW +
" h=" + r.height * outH + " padding=" + padding);
}
}
}
else
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
Debug.Log("==================== REDOING PACKING ================");
}
bestRoot = null;
rs = _GetRects(imgWidthHeights, maxDimension, padding, newMinSizeX, newMinSizeY, masterImageSizeX, masterImageSizeY, out outW, out outH, recursionDepth + 1);
}
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Done GetRects");
}
return(rs);
}
bool Probe(Image[] imgsToAdd, int idealAtlasW, int idealAtlasH, float imgArea, int maxAtlasDim, ProbeResult pr)
{
Node root = new Node();
root.r = new PixRect(0, 0, idealAtlasW, idealAtlasH);
for (int i = 0; i < imgsToAdd.Length; i++)
{
Node n = root.Insert(imgsToAdd[i], false);
if (n == null)
{
return(false);
}
else if (i == imgsToAdd.Length - 1)
{
int usedW = 0;
int usedH = 0;
GetExtent(root, ref usedW, ref usedH);
float efficiency, squareness;
bool fitsInMaxDim;
if (doPowerOfTwoTextures)
{
int atlasW = Mathf.Min(CeilToNearestPowerOfTwo(usedW), maxAtlasDim);
int atlasH = Mathf.Min(CeilToNearestPowerOfTwo(usedH), maxAtlasDim);
if (atlasH < atlasW / 2)
{
atlasH = atlasW / 2;
}
if (atlasW < atlasH / 2)
{
atlasW = atlasH / 2;
}
fitsInMaxDim = usedW <= maxAtlasDim && usedH <= maxAtlasDim;
float scaleW = Mathf.Max(1f, ((float)usedW) / maxAtlasDim);
float scaleH = Mathf.Max(1f, ((float)usedH) / maxAtlasDim);
float atlasArea = atlasW * scaleW * atlasH * scaleH; //area if we scaled it up to something large enough to contain images
efficiency = 1f - (atlasArea - imgArea) / atlasArea;
squareness = 1f; //don't care about squareness in power of two case
}
else
{
efficiency = 1f - (usedW * usedH - imgArea) / (usedW * usedH);
if (usedW < usedH)
{
squareness = (float)usedW / (float)usedH;
}
else
{
squareness = (float)usedH / (float)usedW;
}
fitsInMaxDim = usedW <= maxAtlasDim && usedH <= maxAtlasDim;
}
pr.Set(usedW, usedH, root, fitsInMaxDim, efficiency, squareness);
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Probe success efficiency w=" + usedW + " h=" + usedH + " e=" + efficiency + " sq=" + squareness + " fits=" + fitsInMaxDim);
}
return(true);
}
}
Debug.LogError("Should never get here.");
return(false);
}
bool _bakeStep1(GameObject[] gos, int[] deleteGOinstanceIDs, bool disableRendererInSource)
{
//Profile.End//Profile("MB2_MultiMeshCombiner.AddDeleteGameObjects2.2");
//Profile.Start//Profile("MB2_MultiMeshCombiner.AddDeleteGameObjects3");
//PART 3 ==== Add delete meshes from combined
for (int i = 0; i < meshCombiners.Count; i++)
{
CombinedMesh cm = meshCombiners[i];
if (cm.combinedMesh.targetRenderer == null)
{
cm.combinedMesh.resultSceneObject = _resultSceneObject;
cm.combinedMesh.BuildSceneMeshObject(gos, true);
if (_LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("BuildSO combiner {0} goID {1} targetRenID {2} meshID {3}", i, cm.combinedMesh.targetRenderer.gameObject.GetInstanceID(), cm.combinedMesh.targetRenderer.GetInstanceID(), cm.combinedMesh.GetMesh().GetInstanceID());
}
}
else
{
if (cm.combinedMesh.targetRenderer.transform.parent != resultSceneObject.transform)
{
Debug.LogError("targetRender objects must be children of resultSceneObject");
return(false);
}
}
if (cm.gosToAdd.Count > 0 || cm.gosToDelete.Count > 0)
{
cm.combinedMesh.AddDeleteGameObjectsByID(cm.gosToAdd.ToArray(), cm.gosToDelete.ToArray(), disableRendererInSource);
if (_LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("Baked combiner {0} obsAdded {1} objsRemoved {2} goID {3} targetRenID {4} meshID {5}", i, cm.gosToAdd.Count, cm.gosToDelete.Count, cm.combinedMesh.targetRenderer.gameObject.GetInstanceID(), cm.combinedMesh.targetRenderer.GetInstanceID(), cm.combinedMesh.GetMesh().GetInstanceID());
}
}
Renderer r = cm.combinedMesh.targetRenderer;
Mesh m = cm.combinedMesh.GetMesh();
if (r is MeshRenderer)
{
MeshFilter mf = r.gameObject.GetComponent <MeshFilter>();
mf.sharedMesh = m;
}
else
{
SkinnedMeshRenderer smr = (SkinnedMeshRenderer)r;
smr.sharedMesh = m;
}
}
for (int i = 0; i < meshCombiners.Count; i++)
{
CombinedMesh cm = meshCombiners[i];
for (int j = 0; j < cm.gosToDelete.Count; j++)
{
obj2MeshCombinerMap.Remove(cm.gosToDelete[j]);
}
}
for (int i = 0; i < meshCombiners.Count; i++)
{
CombinedMesh cm = meshCombiners[i];
for (int j = 0; j < cm.gosToAdd.Count; j++)
{
obj2MeshCombinerMap.Add(cm.gosToAdd[j].GetInstanceID(), cm);
}
if (cm.gosToAdd.Count > 0 || cm.gosToDelete.Count > 0)
{
cm.gosToDelete.Clear();
cm.gosToAdd.Clear();
cm.numVertsInListToDelete = 0;
cm.numVertsInListToAdd = 0;
cm.isDirty = true;
}
}
//Profile.End//Profile("MB2_MultiMeshCombiner.AddDeleteGameObjects3");
if (LOG_LEVEL >= MBLogLevel.debug)
{
string s = "Meshes in combined:";
for (int i = 0; i < meshCombiners.Count; i++)
{
s += " mesh" + i + "(" + meshCombiners[i].combinedMesh.GetObjectsInCombined().Count + ")\n";
}
s += "children in result: " + resultSceneObject.transform.childCount;
MBLog.LogDebug(s, LOG_LEVEL);
}
if (meshCombiners.Count > 0)
{
return(true);
}
else
{
return(false);
}
}
void _distributeAmongBakers(GameObject[] gos, int[] deleteGOinstanceIDs)
{
if (gos == null)
{
gos = empty;
}
if (deleteGOinstanceIDs == null)
{
deleteGOinstanceIDs = emptyIDs;
}
if (resultSceneObject == null)
{
resultSceneObject = new GameObject("CombinedMesh-" + name);
}
//PART 2 ==== calculate which bakers to add objects to
for (int i = 0; i < meshCombiners.Count; i++)
{
meshCombiners[i].extraSpace = _maxVertsInMesh - meshCombiners[i].combinedMesh.GetMesh().vertexCount;
}
//Profile.End//Profile("MB2_MultiMeshCombiner.AddDeleteGameObjects1");
//Profile.Start//Profile("MB2_MultiMeshCombiner.AddDeleteGameObjects2.1");
//first delete game objects from the existing combinedMeshes keep track of free space
for (int i = 0; i < deleteGOinstanceIDs.Length; i++)
{
CombinedMesh c = null;
if (obj2MeshCombinerMap.TryGetValue(deleteGOinstanceIDs[i], out c))
{
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("MB2_MultiMeshCombiner.Removing " + deleteGOinstanceIDs[i] + " from meshCombiner " + meshCombiners.IndexOf(c));
}
c.numVertsInListToDelete += c.combinedMesh.GetNumVerticesFor(deleteGOinstanceIDs[i]); //m.vertexCount;
c.gosToDelete.Add(deleteGOinstanceIDs[i]);
}
else
{
Debug.LogWarning("Object " + deleteGOinstanceIDs[i] + " in the list of objects to delete is not in the combined mesh.");
}
}
for (int i = 0; i < gos.Length; i++)
{
GameObject go = gos[i];
int numVerts = MeshBakerUtility.GetMesh(go).vertexCount;
CombinedMesh cm = null;
for (int j = 0; j < meshCombiners.Count; j++)
{
if (meshCombiners[j].extraSpace + meshCombiners[j].numVertsInListToDelete - meshCombiners[j].numVertsInListToAdd > numVerts)
{
cm = meshCombiners[j];
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("MB2_MultiMeshCombiner.Added " + gos[i] + " to combinedMesh " + j, LOG_LEVEL);
}
break;
}
}
if (cm == null)
{
cm = new CombinedMesh(maxVertsInMesh, _resultSceneObject, _LOG_LEVEL);
_setMBValues(cm.combinedMesh);
meshCombiners.Add(cm);
if (LOG_LEVEL >= MBLogLevel.debug)
{
MBLog.LogDebug("MB2_MultiMeshCombiner.Created new combinedMesh");
}
}
cm.gosToAdd.Add(go);
cm.numVertsInListToAdd += numVerts;
// obj2MeshCombinerMap.Add(go,cm);
}
}