/// <summary>
/// Compares two build settings and returns if they are practially different.
/// </summary>
public static bool AreDifferent(CSGBuildSettings settings1, CSGBuildSettings settings2)
{
if (settings1.GenerateCollisionMeshes != settings2.GenerateCollisionMeshes)
{
return(true);
}
if (settings1.GenerateTangents != settings2.GenerateTangents)
{
return(true);
}
if (settings1.OptimizeGeometry != settings2.OptimizeGeometry)
{
return(true);
}
if (settings1.GenerateLightmapUVs != settings2.GenerateLightmapUVs)
{
return(true);
}
// Only compare UV unwrap settings if unwrapping is in use
if (settings1.GenerateLightmapUVs && settings1.GenerateLightmapUVs)
{
if (settings1.UnwrapAngleError != settings2.UnwrapAngleError)
{
return(true);
}
if (settings1.UnwrapAreaError != settings2.UnwrapAreaError)
{
return(true);
}
if (settings1.UnwrapHardAngle != settings2.UnwrapHardAngle)
{
return(true);
}
if (settings1.UnwrapPackMargin != settings2.UnwrapPackMargin)
{
return(true);
}
}
if (settings1.DefaultPhysicsMaterial != settings2.DefaultPhysicsMaterial)
{
return(true);
}
if (settings1.DefaultVisualMaterial != settings2.DefaultVisualMaterial)
{
return(true);
}
// Don't compare IsBuilt
// No practical differences found
return(false);
}
internal static void BuildCollision(Transform meshGroupHolder,
PolygonEntry[] polygonIndex,
CSGBuildSettings buildSettings,
List <Mesh> collisionMeshDictionary)
{
collisionMeshDictionary.Clear();
if (polygonIndex.Length > 0)
{
Mesh mesh = new Mesh();
List <Vector3> positionsList = new List <Vector3>();
List <Vector3> normalsList = new List <Vector3>();
List <Vector2> uvList = new List <Vector2>();
List <int> trianglesList = new List <int>();
for (int i = 0; i < polygonIndex.Length; i++)
{
if (polygonIndex[i] != null)
{
int positionOffset = positionsList.Count;
int triangleOffset = trianglesList.Count;
PolygonEntry polygonEntry = polygonIndex[i];
if (PolygonEntry.IsValid(polygonEntry) &&
polygonEntry.Positions.Length > 0 &&
!polygonEntry.ExcludeFromBuild) // Skip polygons that weren't built
{
if (polygonEntry.Positions.Length + positionOffset > MESH_VERTEX_LIMIT)
{
FinalizeCollisionMesh(meshGroupHolder, mesh, buildSettings, positionsList, normalsList, uvList, trianglesList, collisionMeshDictionary);
mesh = new Mesh();
positionsList.Clear();
normalsList.Clear();
uvList.Clear();
trianglesList.Clear();
positionOffset = 0;
}
positionsList.AddRange(polygonEntry.Positions);
normalsList.AddRange(polygonEntry.Normals);
uvList.AddRange(polygonEntry.UV);
for (int j = 0; j < polygonEntry.Triangles.Length; j++)
{
trianglesList.Add(polygonEntry.Triangles[j] + positionOffset);
}
polygonEntry.BuiltMesh = mesh;
polygonEntry.BuiltVertexOffset = positionOffset;
polygonEntry.BuiltTriangleOffset = triangleOffset;
}
}
}
FinalizeCollisionMesh(meshGroupHolder, mesh, buildSettings, positionsList, normalsList, uvList, trianglesList, collisionMeshDictionary);
}
}
internal static BuildStatus Build(List <Brush> brushes,
CSGBuildSettings buildSettings,
CSGBuildContext.BuildContext buildContext,
Transform rootTransform,
MaterialMeshDictionary materialMeshDictionary,
List <Mesh> collisionMeshDictionary,
bool polygonsRemoved,
bool forceRebuild,
Action <float> onProgressChange,
Action <GameObject, Mesh> onFinalizeVisualMesh,
Action <GameObject, Mesh> onFinalizeCollisionMesh,
bool multithreaded)
{
CSGFactory.brushes = brushes;
CSGFactory.buildSettings = buildSettings;
CSGFactory.buildContext = buildContext;
CSGFactory.rootTransform = rootTransform;
CSGFactory.materialMeshDictionary = materialMeshDictionary;
CSGFactory.collisionMeshDictionary = collisionMeshDictionary;
CSGFactory.polygonsRemoved = polygonsRemoved;
CSGFactory.forceRebuild = forceRebuild;
CSGFactory.onProgressChange = onProgressChange;
CSGFactory.onFinalizeVisualMesh = onFinalizeVisualMesh;
CSGFactory.onFinalizeCollisionMesh = onFinalizeCollisionMesh;
// DebugExclude.hackyHolder = DebugExclude.GetMetaDataHolder();
// BrushChunk.ResetNextID();
if (buildInProgress)
{
Debug.LogWarning("Existing build has not completed");
}
if (multithreaded)
{
readyForFinalize = false;
buildInProgress = true;
ThreadPool.QueueUserWorkItem(CoreBuild, true);
// FinalizeBuild is called by Tick when CoreBuild is complete
return(BuildStatus.Started);
}
else
{
readyForFinalize = false;
CoreBuild(null);
bool buildOccurred = FinalizeBuild();
buildInProgress = false;
return(buildOccurred ? BuildStatus.Complete : BuildStatus.Unnecessary);
}
}
internal static void FinalizeCollisionMesh(Transform meshGroupHolder,
Mesh mesh,
CSGBuildSettings buildSettings,
List <Vector3> positionsList,
List <Vector3> normalsList,
List <Vector2> uvList,
List <int> trianglesList,
List <Mesh> collisionMeshDictionary)
{
Vector3[] positionsArray = new Vector3[positionsList.Count];
Vector3[] normalsArray = new Vector3[normalsList.Count];
Vector2[] uvArray = new Vector2[uvList.Count];
int[] trianglesArray = new int[trianglesList.Count];
positionsList.CopyTo(positionsArray);
normalsList.CopyTo(normalsArray);
uvList.CopyTo(uvArray);
trianglesList.CopyTo(trianglesArray);
mesh.vertices = positionsArray;
mesh.normals = normalsArray;
mesh.uv = uvArray;
if (meshGroupHolder.position != Vector3.zero ||
meshGroupHolder.rotation != Quaternion.identity ||
meshGroupHolder.lossyScale != Vector3.one)
{
mesh.LocalizeToTransform(meshGroupHolder);
}
mesh.triangles = trianglesArray;
GameObject newGameObject = new GameObject("CollisionMesh");
// Allow any editor dependent code to fire, e.g. assigning physics materials
if (OnFinalizeCollisionMesh != null)
{
OnFinalizeCollisionMesh(newGameObject, mesh);
}
MeshCollider meshCollider = newGameObject.AddComponent <MeshCollider>();
meshCollider.sharedMesh = mesh;
// Assign the physics material from build settings
meshCollider.sharedMaterial = buildSettings.DefaultPhysicsMaterial;
// Reparent
newGameObject.transform.SetParent(meshGroupHolder, false); //.parent = meshGroupHolder;
collisionMeshDictionary.Add(mesh);
}
/// <summary>
/// Builds the brushes into final meshes
/// </summary>
/// <param name="forceRebuild">If set to <c>true</c> all brushes will be built and cached data ignored, otherwise SabreCSG will only rebuild brushes it knows have changed</param>
/// <param name="buildInBackground">If set to <c>true</c> the majority of the build will occur in a background thread</param>
public virtual void Build(bool forceRebuild, bool buildInBackground)
{
// If any of the build settings have changed, force all brushes to rebuild
if (!lastBuildSettings.IsBuilt || CSGBuildSettings.AreDifferent(buildSettings, lastBuildSettings))
{
forceRebuild = true;
}
// Make sure we have the most accurate list of brushes, ignoring inactive objects
brushes = new List <Brush>(transform.GetComponentsInChildren <Brush>(false));
// Let each brush know it's about to be built
for (int i = 0; i < brushes.Count; i++)
{
brushes[i].PrepareToBuild(brushes, forceRebuild);
}
// Perform a check to make sure the default material is OK
Material defaultMaterial = GetDefaultMaterial();
if (defaultMaterial == null)
{
Debug.LogError("Default fallback material file is missing, try reimporting SabreCSG");
}
// Make sure the build context has been initialized.
if (buildContext == null)
{
buildContext = BuildContext;
}
BuildStatus buildStatus = CSGFactory.Build(brushes,
buildSettings,
buildContext,
this.transform,
materialMeshDictionary,
collisionMeshDictionary,
polygonsRemoved,
forceRebuild,
OnBuildProgressChanged,
OnFinalizeVisualMesh,
OnFinalizeCollisionMesh,
buildInBackground);
if (buildStatus == BuildStatus.Complete)
{
OnBuildComplete();
}
}
public virtual void OnBuildComplete()
{
polygonsRemoved = false;
// Mark the brushes that have been built (so we can differentiate later if new brushes are built or not)
builtBrushes.Clear();
builtBrushes.AddRange(brushes);
// Copy the last build settings, so that we can make minor changes to built meshes that are consistent
// with how they were built. E.g. maintaining tangents as appropriate
lastBuildSettings = buildSettings.ShallowCopy();
lastBuildSettings.IsBuilt = true; // Make it clear that the lastBuildSettings refers to a completed build
// Fire any post process build events
FirePostBuildEvents();
}
internal static void BuildVisual(Transform meshGroupHolder,
PolygonEntry[] polygonIndex,
CSGBuildSettings buildSettings,
CSGBuildContext.BuildContext buildContext,
MaterialMeshDictionary materialMeshDictionary)
{
materialMeshDictionary.Clear();
// Reset statistics
buildContext.buildMetrics.TotalMeshes = 0;
buildContext.buildMetrics.TotalVertices = 0;
buildContext.buildMetrics.TotalTriangles = 0;
Dictionary <Material, List <PolygonEntry> > polygonMaterialTable = new Dictionary <Material, List <PolygonEntry> >();
for (int i = 0; i < polygonIndex.Length; i++)
{
PolygonEntry entry = polygonIndex[i];
if (PolygonEntry.IsValid(entry) &&
entry.Positions.Length > 0 &&
!entry.ExcludeFromBuild) // Skip polygons that weren't built
{
Material material = entry.Material;
if (material == null)
{
material = buildSettings.DefaultVisualMaterial;
}
if (polygonMaterialTable.ContainsKey(material))
{
polygonMaterialTable[material].Add(entry);
}
else
{
polygonMaterialTable.Add(material, new List <PolygonEntry>()
{
entry
});
}
}
}
foreach (KeyValuePair <Material, List <PolygonEntry> > row in polygonMaterialTable)
{
Mesh mesh = new Mesh();
List <Vector3> positionsList = new List <Vector3>();
List <Vector3> normalsList = new List <Vector3>();
List <Vector2> uvList = new List <Vector2>();
List <Color> colorsList = new List <Color>();
List <int> trianglesList = new List <int>();
for (int i = 0; i < row.Value.Count; i++)
{
int positionOffset = positionsList.Count;
int triangleOffset = trianglesList.Count;
PolygonEntry polygonEntry = row.Value[i];
if (polygonEntry.Positions.Length + positionOffset > MESH_VERTEX_LIMIT)
{
FinalizeVisualMesh(meshGroupHolder, mesh, row.Key, buildSettings, buildContext, positionsList, normalsList, uvList, colorsList, trianglesList, materialMeshDictionary);
mesh = new Mesh();
positionsList.Clear();
normalsList.Clear();
uvList.Clear();
colorsList.Clear();
trianglesList.Clear();
positionOffset = 0;
}
positionsList.AddRange(polygonEntry.Positions);
normalsList.AddRange(polygonEntry.Normals);
uvList.AddRange(polygonEntry.UV);
colorsList.AddRange(polygonEntry.Colors);
for (int j = 0; j < polygonEntry.Triangles.Length; j++)
{
trianglesList.Add(polygonEntry.Triangles[j] + positionOffset);
}
row.Value[i].BuiltMesh = mesh;
row.Value[i].BuiltVertexOffset = positionOffset;
row.Value[i].BuiltTriangleOffset = triangleOffset;
}
FinalizeVisualMesh(meshGroupHolder, mesh, row.Key, buildSettings, buildContext, positionsList, normalsList, uvList, colorsList, trianglesList, materialMeshDictionary);
}
}
internal static void FinalizeCollisionMesh(Transform meshGroupHolder,
Mesh mesh,
CSGBuildSettings buildSettings,
List <Vector3> positionsList,
List <Vector3> normalsList,
List <Vector2> uvList,
List <int> trianglesList,
List <Mesh> collisionMeshDictionary)
{
Vector3[] positionsArray = new Vector3[positionsList.Count];
Vector3[] normalsArray = new Vector3[normalsList.Count];
Vector2[] uvArray = new Vector2[uvList.Count];
int[] trianglesArray = new int[trianglesList.Count];
positionsList.CopyTo(positionsArray);
normalsList.CopyTo(normalsArray);
uvList.CopyTo(uvArray);
trianglesList.CopyTo(trianglesArray);
mesh.vertices = positionsArray;
mesh.normals = normalsArray;
mesh.uv = uvArray;
if (meshGroupHolder.position != Vector3.zero ||
meshGroupHolder.rotation != Quaternion.identity ||
meshGroupHolder.lossyScale != Vector3.one)
{
mesh.LocalizeToTransform(meshGroupHolder);
}
mesh.triangles = trianglesArray;
GameObject newGameObject = new GameObject("CollisionMesh");
// Allow any editor dependent code to fire, e.g. assigning physics materials
if (OnFinalizeCollisionMesh != null)
{
OnFinalizeCollisionMesh(newGameObject, mesh);
}
MeshCollider meshCollider = newGameObject.AddComponent <MeshCollider>();
meshCollider.sharedMesh = mesh;
// Assign the physics material from build settings
meshCollider.sharedMaterial = buildSettings.DefaultPhysicsMaterial;
// Reparent
newGameObject.transform.SetParent(meshGroupHolder, false);//.parent = meshGroupHolder;
#if UNITY_EDITOR
if (buildSettings.SaveMeshesAsAssets)
{
// Make sure the folder exists to save into
string path = SceneManager.GetActiveScene().path;
path = Path.Combine(Path.GetDirectoryName(path), Path.GetFileNameWithoutExtension(path));
if (!Directory.Exists(path))
{
UnityEditor.AssetDatabase.CreateFolder(Path.GetDirectoryName(path), Path.GetFileName(path));
}
// Save to a file rather than leaving it as a scene asset
UnityEditor.AssetDatabase.CreateAsset(mesh, Path.Combine(path, "CollisionMesh" + collisionMeshDictionary.Count + ".asset"));
}
#endif
collisionMeshDictionary.Add(mesh);
}
internal static void FinalizeVisualMesh(Transform meshGroupHolder,
Mesh mesh,
Material material,
CSGBuildSettings buildSettings,
CSGBuildContext.BuildContext buildContext,
List <Vector3> positionsList,
List <Vector3> normalsList,
List <Vector2> uvList,
List <Color> colorsList,
List <int> trianglesList,
MaterialMeshDictionary materialMeshDictionary)
{
Vector3[] positionsArray = new Vector3[positionsList.Count];
Vector3[] normalsArray = new Vector3[normalsList.Count];
Vector2[] uvArray = new Vector2[uvList.Count];
Color[] colorsArray = new Color[colorsList.Count];
int[] trianglesArray = new int[trianglesList.Count];
positionsList.CopyTo(positionsArray);
normalsList.CopyTo(normalsArray);
uvList.CopyTo(uvArray);
trianglesList.CopyTo(trianglesArray);
colorsList.CopyTo(colorsArray);
mesh.vertices = positionsArray;
mesh.normals = normalsArray;
mesh.uv = uvArray;
mesh.colors = colorsArray;
if (meshGroupHolder.position != Vector3.zero ||
meshGroupHolder.rotation != Quaternion.identity ||
meshGroupHolder.lossyScale != Vector3.one)
{
mesh.LocalizeToTransform(meshGroupHolder);
}
mesh.triangles = trianglesArray;
if (buildSettings.GenerateTangents)
{
// Generate tangents, necessary for some shaders
mesh.GenerateTangents();
}
buildContext.buildMetrics.TotalMeshes++;
buildContext.buildMetrics.TotalVertices += positionsArray.Length;
buildContext.buildMetrics.TotalTriangles += trianglesArray.Length / 3;
GameObject newGameObject = new GameObject("MaterialMesh");
// Allow any editor dependent code to fire, e.g. lightmap unwrapping, static flags
if (OnFinalizeVisualMesh != null)
{
OnFinalizeVisualMesh(newGameObject, mesh);
}
newGameObject.AddComponent <MeshFilter>().sharedMesh = mesh;
MeshRenderer meshRenderer = newGameObject.AddComponent <MeshRenderer>();
meshRenderer.sharedMaterial = material;
meshRenderer.shadowCastingMode = buildSettings.ShadowCastingMode;
meshRenderer.reflectionProbeUsage = buildSettings.ReflectionProbeUsage;
//newGameObject.transform.parent = meshGroupHolder;
newGameObject.transform.SetParent(meshGroupHolder, false);
#if UNITY_EDITOR
if (buildSettings.SaveMeshesAsAssets)
{
// Make sure the folder exists to save into
string path = SceneManager.GetActiveScene().path;
path = Path.Combine(Path.GetDirectoryName(path), Path.GetFileNameWithoutExtension(path));
if (!Directory.Exists(path))
{
UnityEditor.AssetDatabase.CreateFolder(Path.GetDirectoryName(path), Path.GetFileName(path));
}
// Save to a file rather than leaving it as a scene asset
UnityEditor.AssetDatabase.CreateAsset(mesh, Path.Combine(path, "VisualMesh" + materialMeshDictionary.MeshCount + ".asset"));
}
#endif
materialMeshDictionary.Add(material, mesh, newGameObject);
}
internal static void FinalizeVisualMesh(Transform meshGroupHolder,
Mesh mesh,
Material material,
CSGBuildSettings buildSettings,
CSGBuildContext.BuildContext buildContext,
List <Vector3> positionsList,
List <Vector3> normalsList,
List <Vector2> uvList,
List <Color> colorsList,
List <int> trianglesList,
MaterialMeshDictionary materialMeshDictionary)
{
Vector3[] positionsArray = new Vector3[positionsList.Count];
Vector3[] normalsArray = new Vector3[normalsList.Count];
Vector2[] uvArray = new Vector2[uvList.Count];
Color[] colorsArray = new Color[colorsList.Count];
int[] trianglesArray = new int[trianglesList.Count];
positionsList.CopyTo(positionsArray);
normalsList.CopyTo(normalsArray);
uvList.CopyTo(uvArray);
trianglesList.CopyTo(trianglesArray);
colorsList.CopyTo(colorsArray);
mesh.vertices = positionsArray;
mesh.normals = normalsArray;
mesh.uv = uvArray;
mesh.colors = colorsArray;
if (meshGroupHolder.position != Vector3.zero ||
meshGroupHolder.rotation != Quaternion.identity ||
meshGroupHolder.lossyScale != Vector3.one)
{
mesh.LocalizeToTransform(meshGroupHolder);
}
mesh.triangles = trianglesArray;
if (buildSettings.GenerateTangents)
{
// Generate tangents, necessary for some shaders
mesh.GenerateTangents();
}
buildContext.buildMetrics.TotalMeshes++;
buildContext.buildMetrics.TotalVertices += positionsArray.Length;
buildContext.buildMetrics.TotalTriangles += trianglesArray.Length / 3;
GameObject newGameObject = new GameObject("MaterialMesh");
// Allow any editor dependent code to fire, e.g. lightmap unwrapping, static flags
if (OnFinalizeVisualMesh != null)
{
OnFinalizeVisualMesh(newGameObject, mesh);
}
newGameObject.AddComponent <MeshFilter>().sharedMesh = mesh;
newGameObject.AddComponent <MeshRenderer>().sharedMaterial = material;
// newGameObject.transform.parent = meshGroupHolder;
newGameObject.transform.SetParent(meshGroupHolder, false);
materialMeshDictionary.Add(material, mesh, newGameObject);
}
