// Find all the meshes in passed Displayable and add them to the lists indexed by their material
// mesh hashes.
private void MapMaterialsAndMeshes(BScene pBs, BInstance pInst, Displayable disp)
{
RenderableMeshGroup rmg = disp.renderable as RenderableMeshGroup;
if (rmg != null)
{
foreach (RenderableMesh rMesh in rmg.meshes)
{
InvertedMesh imesh = new InvertedMesh(pBs, pInst, disp, rmg, rMesh);
BHash meshHash = rMesh.mesh.GetBHash();
if (!sharedMeshes.ContainsKey(meshHash))
{
sharedMeshes.Add(meshHash, new List <InvertedMesh>());
}
sharedMeshes[meshHash].Add(imesh);
BHash materialHash = rMesh.material.GetBHash();
if (!meshByMaterial.ContainsKey(materialHash))
{
meshByMaterial.Add(materialHash, new List <InvertedMesh>());
}
meshByMaterial[materialHash].Add(imesh);
}
}
foreach (Displayable child in disp.children)
{
MapMaterialsAndMeshes(pBs, pInst, child);
}
}
private void DumpInstance(BInstance inst)
{
Displayable instDisplayable = inst.Representation;
LogBProgress("{0} created instance. handle={1}, pos={2}, rot={3}",
_logHeader, inst.handle, inst.Position, inst.Rotation);
DumpDisplayable(inst.Representation, "Representation", 0);
}
// Given a list of meshes, combine them into one mesh and return a containing BInstance.
private BInstance CreateOneInstanceFromMeshes(BHash materialHash, List <InvertedMesh> meshes)
{
// Pick one of the meshes to be the 'root' mesh.
// Someday may need to find the most center mesh to work from.
InvertedMesh rootIMesh = meshes.First();
// The new instance will be at the location of the root mesh with no rotation
BInstance inst = new BInstance();
inst.Position = rootIMesh.containingInstance.Position;
inst.Rotation = OMV.Quaternion.Identity;
inst.coordAxis = rootIMesh.containingInstance.coordAxis;
try {
// The mesh we're going to build
MeshInfo meshInfo = new MeshInfo();
foreach (InvertedMesh imesh in meshes)
{
int indicesBase = meshInfo.vertexs.Count;
// Go through the mesh, map all vertices to global coordinates then convert relative to root
meshInfo.vertexs.AddRange(imesh.renderableMesh.mesh.vertexs.Select(vert => {
OMVR.Vertex newVert = new OMVR.Vertex();
OMV.Vector3 worldPos = vert.Position;
worldPos = worldPos * imesh.containingDisplayable.offsetRotation
+ imesh.containingDisplayable.offsetPosition;
worldPos = worldPos * imesh.containingInstance.Rotation
+ imesh.containingInstance.Position;
// Make new vert relative to the BInstance it's being added to
newVert.Position = worldPos - inst.Position;
newVert.Normal = vert.Normal
* imesh.containingDisplayable.offsetRotation
* imesh.containingInstance.Rotation;
newVert.TexCoord = vert.TexCoord;
return(newVert);
}));
meshInfo.indices.AddRange(imesh.renderableMesh.mesh.indices.Select(ind => ind + indicesBase));
}
RenderableMesh newMesh = new RenderableMesh();
newMesh.num = 0;
newMesh.material = rootIMesh.renderableMesh.material; // The material we share
newMesh.mesh = meshInfo;
RenderableMeshGroup meshGroup = new RenderableMeshGroup();
meshGroup.meshes.Add(newMesh);
Displayable displayable = new Displayable(meshGroup);
displayable.name = "combinedMaterialMeshes-" + materialHash.ToString();
inst.Representation = displayable;
}
catch (Exception e) {
ConvOAR.Globals.log.ErrorFormat("{0} CreateInstanceFromSharedMaterialMeshes: exception: {1}", _logHeader, e);
}
return(inst);
}
public InvertedMesh(BScene pBs, BInstance pInst, Displayable pDisp, DisplayableRenderable pDisprend, RenderableMesh pRm)
{
containingScene = pBs;
containingInstance = pInst;
containingDisplayable = pDisp;
containingDisplayableRenderable = pDisprend;
renderableMesh = pRm;
// Compute the global position of the Displayable
globalPosition = containingDisplayable.offsetPosition * containingInstance.Rotation + containingInstance.Position;
globalRotation = containingDisplayable.offsetRotation * containingInstance.Rotation;
}
// Convert the positions and all the vertices in an ExtendedPrim from one
// coordinate space to another. ExtendedPrim.coordSpace gives the current
// coordinates and we specify a new one here.
// This is not a general solution -- it pretty much only works to convert
// right-handed,Z-up coordinates (OpenSimulator) to right-handed,Y-up
// (OpenGL).
public static void FixCoordinates(BInstance inst, CoordAxis newCoords)
{
if (inst.coordAxis.system != newCoords.system)
{
OMV.Matrix4 coordTransform = OMV.Matrix4.Identity;
OMV.Quaternion coordTransformQ = OMV.Quaternion.Identity;
if (inst.coordAxis.getUpDimension == CoordAxis.Zup &&
newCoords.getUpDimension == CoordAxis.Yup)
{
// The one thing we know to do is change from Zup to Yup
coordTransformQ = OMV.Quaternion.CreateFromAxisAngle(1.0f, 0.0f, 0.0f, -(float)Math.PI / 2f);
// Make a clean matrix version.
// The libraries tend to create matrices with small numbers (1.119093e-07) for zero.
coordTransform = new OMV.Matrix4(
1, 0, 0, 0,
0, 0, -1, 0,
0, 1, 0, 0,
0, 0, 0, 1);
}
OMV.Vector3 oldPos = inst.Position; // DEBUG DEBUG
OMV.Quaternion oldRot = inst.Rotation; // DEBUG DEBUG
// Fix the location in space
inst.Position = inst.Position * coordTransformQ;
inst.Rotation = coordTransformQ * inst.Rotation;
inst.coordAxis = newCoords;
// ConvOAR.Globals.log.DebugFormat("{0} FixCoordinates. dispID={1}, oldPos={2}, newPos={3}, oldRot={4}, newRot={5}",
// _logHeader, inst.handle, oldPos, inst.Position, oldRot, inst.Rotation);
// Go through all the vertices and change the UV coords if necessary
List <MeshInfo> meshInfos = CollectMeshesFromDisplayable(inst.Representation);
meshInfos.ForEach(meshInfo => {
if (meshInfo.coordAxis.getUVOrigin != newCoords.getUVOrigin)
{
for (int ii = 0; ii < meshInfo.vertexs.Count; ii++)
{
var vert = meshInfo.vertexs[ii];
vert.TexCoord.Y = 1f - vert.TexCoord.Y;
meshInfo.vertexs[ii] = vert;
}
meshInfo.coordAxis = newCoords;
}
});
}
else
{
ConvOAR.Globals.log.DebugFormat("FixCoordinates. Not converting coord system. dispID={0}", inst.handle);
}
}
// Creates Instances for the shared messes in this list and also takes the meshes out of 'meshByMaterial'.
// Current algorithm: create one instance and add all shared meshes as children.
// When the instances are created (or copied over), the meshes must be removed from the
// 'meshByMaterial' structure so they are not combined with other material sharing meshes.
private List <BInstance> CreateInstancesForSharedMeshes(List <InvertedMesh> meshList)
{
List <BInstance> ret = new List <BInstance>();
BInstance inst = new BInstance();
InvertedMesh rootMesh = meshList.First();
inst.Position = rootMesh.globalPosition;
inst.Rotation = OMV.Quaternion.Identity;
// Create Displayable for each identical mesh (so we can keep the pos and rot.
// Take the root mesh out of the list and use it as the representation
List <Displayable> repackagedMeshes = PackMeshesIntoDisplayables(meshList, inst.Position,
imesh => "sharedMesh-" + imesh.renderableMesh.mesh.GetBHash().ToString() + "-" + imesh.renderableMesh.GetBHash().ToString());
Displayable rootDisplayable = repackagedMeshes.First();
repackagedMeshes.RemoveAt(0);
inst.Representation = rootDisplayable;
rootDisplayable.children = repackagedMeshes;
ret.Add(inst);
return(ret);
}
// Create a mesh for the terrain of the current scene
public static BInstance CreateTerrainMesh(
Scene scene,
PrimToMesh assetMesher, IAssetFetcher assetFetcher)
{
ITerrainChannel terrainDef = scene.Heightmap;
int XSize = terrainDef.Width;
int YSize = terrainDef.Height;
float[,] heightMap = new float[XSize, YSize];
if (ConvOAR.Globals.parms.P <bool>("HalfRezTerrain"))
{
ConvOAR.Globals.log.DebugFormat("{0}: CreateTerrainMesh. creating half sized terrain sized <{1},{2}>", LogHeader, XSize / 2, YSize / 2);
// Half resolution mesh that approximates the heightmap
heightMap = new float[XSize / 2, YSize / 2];
for (int xx = 0; xx < XSize; xx += 2)
{
for (int yy = 0; yy < YSize; yy += 2)
{
float here = terrainDef.GetHeightAtXYZ(xx + 0, yy + 0, 26);
float ln = terrainDef.GetHeightAtXYZ(xx + 1, yy + 0, 26);
float ll = terrainDef.GetHeightAtXYZ(xx + 0, yy + 1, 26);
float lr = terrainDef.GetHeightAtXYZ(xx + 1, yy + 1, 26);
heightMap[xx / 2, yy / 2] = (here + ln + ll + lr) / 4;
}
}
}
else
{
ConvOAR.Globals.log.DebugFormat("{0}: CreateTerrainMesh. creating terrain sized <{1},{2}>", LogHeader, XSize / 2, YSize / 2);
for (int xx = 0; xx < XSize; xx++)
{
for (int yy = 0; yy < YSize; yy++)
{
heightMap[xx, yy] = terrainDef.GetHeightAtXYZ(xx, yy, 26);
}
}
}
// Number found in RegionSettings.cs as DEFAULT_TERRAIN_TEXTURE_3
OMV.UUID convoarID = new OMV.UUID(ConvOAR.Globals.parms.P <string>("ConvoarID"));
OMV.UUID defaultTextureID = new OMV.UUID("179cdabd-398a-9b6b-1391-4dc333ba321f");
OMV.Primitive.TextureEntryFace terrainFace = new OMV.Primitive.TextureEntryFace(null);
terrainFace.TextureID = defaultTextureID;
EntityHandleUUID terrainTextureHandle = new EntityHandleUUID();
MaterialInfo terrainMaterialInfo = new MaterialInfo(terrainFace);
if (ConvOAR.Globals.parms.P <bool>("CreateTerrainSplat"))
{
// Use the OpenSim maptile generator to create a texture for the terrain
var terrainRenderer = new TexturedMapTileRenderer();
Nini.Config.IConfigSource config = new Nini.Config.IniConfigSource();
terrainRenderer.Initialise(scene, config);
var mapbmp = new Bitmap(terrainDef.Width, terrainDef.Height,
System.Drawing.Imaging.PixelFormat.Format24bppRgb);
terrainRenderer.TerrainToBitmap(mapbmp);
// Place the newly created image into the Displayable caches
ImageInfo terrainImageInfo = new ImageInfo();
terrainImageInfo.handle = terrainTextureHandle;
terrainImageInfo.image = mapbmp;
terrainImageInfo.resizable = false; // terrain image resolution is not reduced
assetFetcher.Images.Add(new BHashULong(terrainTextureHandle.GetHashCode()), terrainTextureHandle, terrainImageInfo);
// Store the new image into the asset system so it can be read later.
assetFetcher.StoreTextureImage(terrainTextureHandle, scene.Name + " Terrain", convoarID, mapbmp);
// Link this image to the material
terrainFace.TextureID = terrainTextureHandle.GetUUID();
}
else
{
// Use the default texture code for terrain
terrainTextureHandle = new EntityHandleUUID(defaultTextureID);
BHash terrainHash = new BHashULong(defaultTextureID.GetHashCode());
assetFetcher.GetImageInfo(terrainHash, () => {
ImageInfo terrainImageInfo = new ImageInfo();
terrainImageInfo.handle = terrainTextureHandle;
assetFetcher.FetchTextureAsImage(terrainTextureHandle)
.Then(img => {
terrainImageInfo.image = img;
});
return(terrainImageInfo);
});
}
// The above has created a MaterialInfo for the terrain texture
ConvOAR.Globals.log.DebugFormat("{0}: CreateTerrainMesh. calling MeshFromHeightMap", LogHeader);
DisplayableRenderable terrainDisplayable = assetMesher.MeshFromHeightMap(heightMap,
terrainDef.Width, terrainDef.Height, assetFetcher, terrainFace);
BInstance terrainInstance = new BInstance();
Displayable terrainDisp = new Displayable(terrainDisplayable);
terrainDisp.name = "Terrain";
terrainDisp.baseUUID = OMV.UUID.Random();
terrainInstance.Representation = terrainDisp;
return(terrainInstance);
}
// Create a new scene based on an existing scene.
// NOTE: this is NOT a clone. Instances are not copied and other things just
// have their pointers moved so the items are shared.
public BScene(BScene bScene)
{
name = bScene.name;
attributes = bScene.attributes;
terrainInstance = bScene.terrainInstance;
}
public Promise <BScene> ConvertOarToScene(IAssetService assetService, IAssetFetcher assetFetcher)
{
Promise <BScene> prom = new Promise <BScene>();
// Assemble all the parameters that loadoar takes and uses
Dictionary <string, object> options = new Dictionary <string, object>();
// options.Add("merge", false);
options.Add("displacement", ConvOAR.Globals.parms.P <OMV.Vector3>("Displacement"));
string optRotation = ConvOAR.Globals.parms.P <string>("Rotation");
if (optRotation != null)
{
options.Add("rotation", float.Parse(optRotation, System.Threading.Thread.CurrentThread.CurrentCulture));
}
// options.Add("default-user", OMV.UUID.Random());
// if (optSkipAssets != null) options.Add('skipAssets', true);
// if (optForceTerrain != null) options.Add("force-terrain", true);
// if (optNoObjects != null) options.Add("no-objects", true);
string optSubRegion = ConvOAR.Globals.parms.P <string>("SubRegion");
if (optSubRegion != null)
{
List <float> bounds = optSubRegion.Split(',').Select <string, float>(x => { return(float.Parse(x)); }).ToList();
options.Add("bounding-origin", new OMV.Vector3(bounds[0], bounds[1], bounds[2]));
options.Add("bounding-size", new OMV.Vector3(bounds[3] - bounds[0], bounds[4] - bounds[1], bounds[5] - bounds[2]));
}
// Create an OpenSimulator region and scene to load the OAR into
string regionName = "convoar";
if (String.IsNullOrEmpty(ConvOAR.Globals.parms.P <String>("RegionName")))
{
// Try to build the region name from the OAR filesname
regionName = Path.GetFileNameWithoutExtension(ConvOAR.Globals.parms.P <string>("InputOAR"));
}
else
{
regionName = ConvOAR.Globals.parms.P <string>("RegionName");
}
Scene scene = CreateScene(assetService, regionName);
// Load the archive into our scene
ArchiveReadRequest archive = new ArchiveReadRequest(scene, ConvOAR.Globals.parms.P <string>("InputOAR"), Guid.Empty, options);
archive.DearchiveRegion(false);
// Convert SOGs from OAR into EntityGroups
// ConvOAR.Globals.log.Log("Num assets = {0}", assetService.NumAssets);
LogBProgress("Num SOGs = {0}", scene.GetSceneObjectGroups().Count);
PrimToMesh mesher = new PrimToMesh();
// Convert SOGs => BInstances
Promise <BInstance> .All(
scene.GetSceneObjectGroups().Select(sog => {
return(ConvertSogToInstance(sog, assetFetcher, mesher));
})
)
.Done(instances => {
ConvOAR.Globals.log.DebugFormat("{0} Num instances = {1}", _logHeader, instances.ToList().Count);
List <BInstance> instanceList = new List <BInstance>();
instanceList.AddRange(instances);
// Add the terrain mesh to the scene
BInstance terrainInstance = null;
if (ConvOAR.Globals.parms.P <bool>("AddTerrainMesh"))
{
ConvOAR.Globals.log.DebugFormat("{0} Creating terrain for scene", _logHeader);
// instanceList.Add(ConvoarTerrain.CreateTerrainMesh(scene, mesher, assetFetcher));
terrainInstance = ConvoarTerrain.CreateTerrainMesh(scene, mesher, assetFetcher);
CoordAxis.FixCoordinates(terrainInstance, new CoordAxis(CoordAxis.RightHand_Yup | CoordAxis.UVOriginLowerLeft));
}
// Twist the OpenSimulator Z-up coordinate system to the OpenGL Y-up
foreach (var inst in instanceList)
{
CoordAxis.FixCoordinates(inst, new CoordAxis(CoordAxis.RightHand_Yup | CoordAxis.UVOriginLowerLeft));
}
// package instances into a BScene
BScene bScene = new BScene();
bScene.instances = instanceList;
RegionInfo ri = scene.RegionInfo;
bScene.name = ri.RegionName;
bScene.terrainInstance = terrainInstance;
bScene.attributes.Add("RegionName", ri.RegionName);
bScene.attributes.Add("RegionSizeX", ri.RegionSizeX);
bScene.attributes.Add("RegionSizeY", ri.RegionSizeY);
bScene.attributes.Add("RegionSizeZ", ri.RegionSizeZ);
bScene.attributes.Add("RegionLocX", ri.RegionLocX);
bScene.attributes.Add("RegionLocY", ri.RegionLocY);
bScene.attributes.Add("WorldLocX", ri.WorldLocX);
bScene.attributes.Add("WorldLocY", ri.WorldLocY);
bScene.attributes.Add("WaterHeight", ri.RegionSettings.WaterHeight);
bScene.attributes.Add("DefaultLandingPorint", ri.DefaultLandingPoint);
prom.Resolve(bScene);
}, e => {
ConvOAR.Globals.log.ErrorFormat("{0} failed SOG conversion: {1}", _logHeader, e);
// prom.Reject(new Exception(String.Format("Failed conversion: {0}", e)));
});
return(prom);
}
// Convert a SceneObjectGroup into an instance with displayables
public IPromise <BInstance> ConvertSogToInstance(SceneObjectGroup sog, IAssetFetcher assetFetcher, PrimToMesh mesher)
{
var prom = new Promise <BInstance>();
LogBProgress("{0} ConvertSogToInstance: name={1}, id={2}, SOPs={3}",
_logHeader, sog.Name, sog.UUID, sog.Parts.Length);
// Create meshes for all the parts of the SOG
Promise <Displayable> .All(
sog.Parts.Select(sop => {
LogBProgress("{0} ConvertSOGToInstance: Calling CreateMeshResource for sog={1}, sop={2}",
_logHeader, sog.UUID, sop.UUID);
OMV.Primitive aPrim = sop.Shape.ToOmvPrimitive();
return(mesher.CreateMeshResource(sog, sop, aPrim, assetFetcher, OMVR.DetailLevel.Highest));
})
)
.Then(renderables => {
// Remove any failed SOG/SOP conversions.
List <Displayable> filteredRenderables = renderables.Where(rend => rend != null).ToList();
// 'filteredRenderables' are the DisplayRenderables for all the SOPs in the SOG
// Get the root prim of the SOG
List <Displayable> rootDisplayableList = filteredRenderables.Where(disp => {
return(disp.baseSOP.IsRoot);
}).ToList();
if (rootDisplayableList.Count != 1)
{
// There should be only one root prim
ConvOAR.Globals.log.ErrorFormat("{0} ConvertSOGToInstance: Found not one root prim in SOG. ID={1}, numRoots={2}",
_logHeader, sog.UUID, rootDisplayableList.Count);
prom.Reject(new Exception(String.Format("Found more than one root prim in SOG. ID={0}", sog.UUID)));
return(null);
}
// The root of the SOG
Displayable rootDisplayable = rootDisplayableList.First();
// Collect all the children prims and add them to the root Displayable
rootDisplayable.children = filteredRenderables.Where(disp => {
return(!disp.baseSOP.IsRoot);
}).Select(disp => {
return(disp);
}).ToList();
return(rootDisplayable);
})
.Done(rootDisplayable => {
// Add the Displayable into the collection of known Displayables for instancing
assetFetcher.AddUniqueDisplayable(rootDisplayable);
// Package the Displayable into an instance that is position in the world
BInstance inst = new BInstance();
inst.Position = sog.AbsolutePosition;
inst.Rotation = sog.GroupRotation;
inst.Representation = rootDisplayable;
if (ConvOAR.Globals.parms.P <bool>("LogBuilding"))
{
DumpInstance(inst);
}
prom.Resolve(inst);
}, e => {
ConvOAR.Globals.log.ErrorFormat("{0} Failed meshing of SOG. ID={1}: {2}", _logHeader, sog.UUID, e);
prom.Reject(new Exception(String.Format("failed meshing of SOG. ID={0}: {1}", sog.UUID, e)));
});
return(prom);
}
