// 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;
}
// Add another level of parenting
public InvertedMesh AddDisplayableLevel(InvertedMesh imesh, Displayable pDisp, DisplayableRenderable pDispRend)
{
InvertedMesh newIMesh = new InvertedMesh(imesh.containingScene, imesh.containingInstance,
imesh.containingDisplayable, imesh.containingDisplayableRenderable, imesh.renderableMesh);
globalPosition += pDisp.offsetPosition;
globalRotation *= pDisp.offsetRotation;
newIMesh.containingDisplayable = pDisp;
newIMesh.containingDisplayableRenderable = pDispRend;
return(newIMesh);
}
// Adds this Displayable if it's not already in the list.
// Return 'true' if the Displayable was added to the list.
public bool AddUniqueDisplayable(Displayable disp)
{
bool ret = false;
Displayable maybeDisp;
BHash dispHash = disp.GetBHash();
lock (Displayables) {
if (!Displayables.TryGetValue(dispHash, out maybeDisp))
{
Displayables.Add(dispHash, disp);
}
}
return(ret);
}
// Utility routine to gather all the MeshInfo's from a Displayable and all its children.
private static List <MeshInfo> CollectMeshesFromDisplayable(Displayable disp)
{
List <MeshInfo> meshInfos = new List <MeshInfo>();
if (disp.renderable is RenderableMeshGroup rmg)
{
meshInfos.AddRange(
rmg.meshes.Select(aMesh => { return(aMesh.mesh); })
);
}
disp.children.ForEach(child => {
meshInfos.AddRange(CollectMeshesFromDisplayable(child));
});
return(meshInfos);
}
private void DumpDisplayable(Displayable disp, string header, int level)
{
string spaces = " ";
string spacer = spaces.Substring(0, level * 2);
LogBProgress("{0}{1} displayable: name={2}, pos={3}, rot={4}",
_logHeader, spacer, disp.name, disp.offsetPosition, disp.offsetRotation);
RenderableMeshGroup rmg = disp.renderable as RenderableMeshGroup;
if (rmg != null)
{
rmg.meshes.ForEach(mesh => {
LogBProgress("{0}{1} mesh: mesh={2}. material={3}",
_logHeader, spacer, mesh.mesh, mesh.material);
});
}
disp.children.ForEach(child => {
DumpDisplayable(child, "Child", level + 1);
});
}
private List <Displayable> PackMeshesIntoDisplayables(List <InvertedMesh> meshList, OMV.Vector3 gPos, CreateNameFunc createName)
{
return(meshList.Select(imesh => {
/*
* ConvOAR.Globals.log.DebugFormat("{0} CreateInstanceForSharedMeshes: hash={1}, instPos={2}, dispPos={3}, numVerts={4}",
* _logHeader, imesh.renderableMesh.mesh.GetBHash(),
* imesh.containingInstance.Position,
* imesh.containingDisplayable.offsetPosition,
* imesh.renderableMesh.mesh.vertexs.Count);
*/
RenderableMeshGroup mesh = new RenderableMeshGroup();
mesh.meshes.Add(imesh.renderableMesh);
Displayable disp = new Displayable(mesh);
disp.name = createName(imesh);
disp.offsetPosition = imesh.globalPosition - gPos;
disp.offsetRotation = imesh.globalRotation;
disp.renderable = mesh;
return disp;
}).ToList());
}
// 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);
}
public bool GetDisplayable(BHash hash, out Displayable disp)
{
return(Displayables.TryGetValue(hash, out disp));
}
// 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);
}
