private static void TransformPlanarTexCoord(ref Vector2 texCoord, Vertex vertex, Vector3 center,
Vector3 vec)
{
Vector3 binormal;
float d = Vector3.Dot(vertex.Normal, Vector3.UnitX);
if (d >= 0.5f || d <= -0.5f)
{
binormal = new Vector3(0f, 1f, 0f);
if (vertex.Normal.X < 0f)
{
binormal.X = -binormal.X;
binormal.Y = -binormal.Y;
binormal.Z = -binormal.Z;
}
}
else
{
binormal = new Vector3(1f, 0f, 0f);
if (vertex.Normal.Y > 0f)
{
binormal.X = -binormal.X;
binormal.Y = -binormal.Y;
binormal.Z = -binormal.Z;
}
}
Vector3 tangent = binormal % vertex.Normal;
texCoord.Y = -(Vector3.Dot(tangent, vec) * 2f - 0.5f);
texCoord.X = 1f + (Vector3.Dot(binormal, vec) * 2f - 0.5f);
}
// I had a lot of trouble with problems with equality and GetHashCode of OMVR.Vertex
// so this implementation creates a proper hash for a Vertex so it can be used
// in a dictionary.
public static BHash VertexBHash(OMVR.Vertex vert)
{
BHasher hasher = new BHasherMdjb2();
MeshInfo.VertexBHash(vert, hasher);
return(hasher.Finish());
}
/// <summary>
/// Apply texture coordinate modifications from a
/// <seealso cref="TextureEntryFace"/> to a list of vertices
/// </summary>
/// <param name="vertices">Vertex list to modify texture coordinates for</param>
/// <param name="center">Center-point of the face</param>
/// <param name="teFace">Face texture parameters</param>
public void TransformTexCoords(List <OMVR.Vertex> vertices, OMV.Vector3 center, OMV.Primitive.TextureEntryFace teFace)
{
// compute trig stuff up front
float cosineAngle = (float)Math.Cos(teFace.Rotation);
float sinAngle = (float)Math.Sin(teFace.Rotation);
// need a check for plainer vs default
// just do default for now (I don't know what planar is)
for (int ii = 0; ii < vertices.Count; ii++)
{
// tex coord comes to us as a number between zero and one
// transform about the center of the texture
OMVR.Vertex vert = vertices[ii];
// repeat, offset, rotate
// float tX = (vert.TexCoord.X - 0.5f) * teFace.RepeatU + teFace.OffsetU;
// float tY = (vert.TexCoord.Y - 0.5f) * teFace.RepeatV - teFace.OffsetV;
// vert.TexCoord.X = (tX * cosineAngle - tY * sinAngle) + 0.5f;
// vert.TexCoord.Y = (tX * sinAngle + tY * cosineAngle) + 0.5f;
float tX = vert.TexCoord.X - 0.5f;
float tY = vert.TexCoord.Y - 0.5f;
// rotate, scale, offset
vert.TexCoord.X = (tX * cosineAngle - tY * sinAngle) * teFace.RepeatU - teFace.OffsetU + 0.5f;
vert.TexCoord.Y = (tX * sinAngle + tY * cosineAngle) * teFace.RepeatV - teFace.OffsetV + 0.5f;
vertices[ii] = vert;
}
return;
}
/// <summary>
/// Method for generating mesh Face from a heightmap
/// </summary>
/// <param name="zMap">Two dimension array of floats containing height information</param>
/// <param name="xBegin">Starting value for X</param>
/// <param name="xEnd">Max value for X</param>
/// <param name="yBegin">Starting value for Y</param>
/// <param name="yEnd">Max value of Y</param>
/// <returns></returns>
public Face TerrainMesh(float[,] zMap, float xBegin, float xEnd, float yBegin, float yEnd)
{
SculptMesh newMesh = new SculptMesh(zMap, xBegin, xEnd, yBegin, yEnd, true);
Face terrain = new Face();
int faceVertices = newMesh.coords.Count;
terrain.Vertices = new List <Vertex>(faceVertices);
terrain.Indices = new List <ushort>(newMesh.faces.Count * 3);
for (int j = 0; j < faceVertices; j++)
{
var vert = new OMVR.Vertex
{
Position = new Vector3(newMesh.coords[j].X, newMesh.coords[j].Y, newMesh.coords[j].Z),
Normal = new Vector3(newMesh.normals[j].X, newMesh.normals[j].Y, newMesh.normals[j].Z),
TexCoord = new Vector2(newMesh.uvs[j].U, newMesh.uvs[j].V)
};
terrain.Vertices.Add(vert);
}
for (int j = 0; j < newMesh.faces.Count; j++)
{
terrain.Indices.Add((ushort)newMesh.faces[j].v1);
terrain.Indices.Add((ushort)newMesh.faces[j].v2);
terrain.Indices.Add((ushort)newMesh.faces[j].v3);
}
return(terrain);
}
// 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 static void OnAllVertex(MeshInfo mi, OperateOnVertex vertOp)
{
for (int jj = 0; jj < mi.vertexs.Count; jj++)
{
OMVR.Vertex aVert = mi.vertexs[jj];
vertOp(ref aVert);
mi.vertexs[jj] = aVert;
}
}
/// <summary>
/// Create a faceted mesh from prim shape parameters.
/// Generates a a series of faces, each face containing a mesh and
/// material metadata.
/// A prim will turn into multiple faces with each being independent
/// meshes and each having different material information.
/// </summary>
/// <param name="prim">Primitive to generate the mesh from</param>
/// <param name="lod">Level of detail to generate the mesh at</param>
/// <returns>The generated mesh</returns >
public OMVR.FacetedMesh GenerateFacetedMesh(OMV.Primitive prim, OMVR.DetailLevel lod)
{
bool isSphere = ((OMV.ProfileCurve)(prim.PrimData.profileCurve & 0x07) == OMV.ProfileCurve.HalfCircle);
PrimMesher.PrimMesh newPrim = GeneratePrimMesh(prim, lod, true);
if (newPrim == null)
{
return(null);
}
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List <OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List <OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List <OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List <OMVR.PathPoint>();
var indexer = newPrim.GetVertexIndexer();
for (int i = 0; i < indexer.numPrimFaces; i++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List <OMVR.Vertex>();
oface.Indices = new List <ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)i);
for (int j = 0; j < indexer.viewerVertices[i].Count; j++)
{
var vert = new OMVR.Vertex();
var m = indexer.viewerVertices[i][j];
vert.Position = new Vector3(m.v.X, m.v.Y, m.v.Z);
vert.Normal = new Vector3(m.n.X, m.n.Y, m.n.Z);
vert.TexCoord = new OMV.Vector2(m.uv.U, 1.0f - m.uv.V);
oface.Vertices.Add(vert);
}
for (int j = 0; j < indexer.viewerPolygons[i].Count; j++)
{
var p = indexer.viewerPolygons[i][j];
// Skip "degenerate faces" where the same vertex appears twice in the same tri
if (p.v1 == p.v2 || p.v1 == p.v2 || p.v2 == p.v3)
{
continue;
}
oface.Indices.Add((ushort)p.v1);
oface.Indices.Add((ushort)p.v2);
oface.Indices.Add((ushort)p.v3);
}
omvrmesh.Faces.Add(oface);
}
return(omvrmesh);
}
private static void VertexBHash(OMVR.Vertex vert, BHasher hasher)
{
hasher.Add(vert.Position.X);
hasher.Add(vert.Position.Y);
hasher.Add(vert.Position.Z);
hasher.Add(vert.Normal.X);
hasher.Add(vert.Normal.Y);
hasher.Add(vert.Normal.Z);
hasher.Add(vert.TexCoord.X);
hasher.Add(vert.TexCoord.Y);
}
/// <summary>
/// Apply texture coordinate modifications from a
/// <seealso cref="TextureEntryFace"/> to a list of vertices
/// </summary>
/// <param name="vertices">Vertex list to modify texture coordinates for</param>
/// <param name="center">Center-point of the face</param>
/// <param name="teFace">Face texture parameters</param>
public void TransformTexCoords(List <OMVR.Vertex> vertices, OMV.Vector3 center, OMV.Primitive.TextureEntryFace teFace, Vector3 primScale)
{
// compute trig stuff up front
float cosineAngle = (float)Math.Cos(teFace.Rotation);
float sinAngle = (float)Math.Sin(teFace.Rotation);
for (int ii = 0; ii < vertices.Count; ii++)
{
// tex coord comes to us as a number between zero and one
// transform about the center of the texture
OMVR.Vertex vert = vertices[ii];
// aply planar tranforms to the UV first if applicable
if (teFace.TexMapType == MappingType.Planar)
{
Vector3 binormal;
float d = Vector3.Dot(vert.Normal, Vector3.UnitX);
if (d >= 0.5f || d <= -0.5f)
{
binormal = Vector3.UnitY;
if (vert.Normal.X < 0f)
{
binormal *= -1;
}
}
else
{
binormal = Vector3.UnitX;
if (vert.Normal.Y > 0f)
{
binormal *= -1;
}
}
Vector3 tangent = binormal % vert.Normal;
Vector3 scaledPos = vert.Position * primScale;
vert.TexCoord.X = 1f + (Vector3.Dot(binormal, scaledPos) * 2f - 0.5f);
vert.TexCoord.Y = -(Vector3.Dot(tangent, scaledPos) * 2f - 0.5f);
}
float repeatU = teFace.RepeatU;
float repeatV = teFace.RepeatV;
float tX = vert.TexCoord.X - 0.5f;
float tY = vert.TexCoord.Y - 0.5f;
vert.TexCoord.X = (tX * cosineAngle + tY * sinAngle) * repeatU + teFace.OffsetU + 0.5f;
vert.TexCoord.Y = (-tX * sinAngle + tY * cosineAngle) * repeatV + teFace.OffsetV + 0.5f;
vertices[ii] = vert;
}
return;
}
// Create a new MeshInfo with a copy of what is in another MeshInfo.
// Note that we need to do a deep'ish copy since the values of the
// vertices may be modified in the copy.
// OMVR.Vertex and OMV.Vextor3 are structs so they are copied.
public MeshInfo(MeshInfo other)
{
handle = new EntityHandleUUID();
vertexs = other.vertexs.ConvertAll(v => {
OMVR.Vertex newV = new OMVR.Vertex();
newV.Position = v.Position;
newV.Normal = v.Normal;
newV.TexCoord = v.TexCoord;
return(newV);
});
// vertexs = new List<OMVR.Vertex>(other.vertexs);
indices = new List <int>(other.indices);
scale = new OMV.Vector3(other.scale);
faceCenter = new OMV.Vector3(other.faceCenter);
}
// Walk through all the vertices and scale the included meshes
// Returns 'true' of the mesh was changed.
public static bool ScaleMeshes(MeshInfo meshInfo, OMV.Vector3 scale)
{
bool ret = false;
if (scale.X != 1.0 || scale.Y != 1.0 || scale.Z != 1.0)
{
ret = true;
for (int ii = 0; ii < meshInfo.vertexs.Count; ii++)
{
OMVR.Vertex aVert = meshInfo.vertexs[ii];
aVert.Position *= scale;
meshInfo.vertexs[ii] = aVert;
}
}
return(ret);
}
public void AddVertex(Vertex v)
{
int index;
if (LookUp.ContainsKey(v))
{
index = LookUp[v];
}
else
{
index = Vertices.Count;
Vertices.Add(v);
LookUp[v] = index;
}
Indices.Add((uint)index);
}
public SimpleMesh GenerateSimpleMesh(Primitive prim, DetailLevel lod)
{
Path path = GeneratePath();
Profile profile = GenerateProfile();
MeshmerizerMesh meshmerizer = new MeshmerizerMesh();
meshmerizer = GenerateMeshmerizerMesh(prim);
// Create the vertex array
List<Vertex> vertices = new List<Vertex>(meshmerizer.primMesh.coords.Count);
for (int i = 0; i < meshmerizer.primMesh.coords.Count; i++)
{
Coord c = meshmerizer.primMesh.coords[i];
Vertex vertex = new Vertex();
vertex.Position = new Vector3(c.X, c.Y, c.Z);
vertices.Add(vertex);
}
// Create the index array
List<ushort> indices = new List<ushort>(meshmerizer.primMesh.faces.Count * 3);
for (int i = 0; i < meshmerizer.primMesh.faces.Count; i++)
{
MeshmerizerFace f = meshmerizer.primMesh.faces[i];
indices.Add((ushort)f.v1);
indices.Add((ushort)f.v2);
indices.Add((ushort)f.v3);
}
SimpleMesh mesh = new SimpleMesh();
mesh.Prim = prim;
mesh.Path = path;
mesh.Profile = profile;
mesh.Vertices = vertices;
mesh.Indices = indices;
return mesh;
}
// PrimMesher has a terrain mesh generator but it doesn't compute normals.
// TODO: Optimize by removing vertices that are just mid points.
// Having a vertex for every height is very inefficient especially for flat areas.
public static OMVR.Face TerrainMesh(float[,] heights, float realSizeX, float realSizeY)
{
List <ushort> indices = new List <ushort>();
int sizeX = heights.GetLength(0);
int sizeY = heights.GetLength(1);
// build the vertices in an array for computing normals and eventually for
// optimizations.
Vert[,] vertices = new Vert[sizeX, sizeY];
float stepX = (realSizeX) / (float)sizeX; // the real dimension step for each heightmap step
float stepY = (realSizeY) / (float)sizeY;
float coordStepX = 1.0f / (float)sizeX; // the coordinate dimension step for each heightmap step
float coordStepY = 1.0f / (float)sizeY;
uint index = 0;
for (int xx = 0; xx < sizeX; xx++)
{
for (int yy = 0; yy < sizeY; yy++)
{
Vert vert = new Vert();
vert.Position = new OMV.Vector3(stepX * xx, stepY * yy, heights[xx, yy]);
vert.Normal = new OMV.Vector3(0f, 1f, 0f); // normal pointing up for the moment
vert.TexCoord = new OMV.Vector2(coordStepX * xx, coordStepY * yy);
vert.index = index++;
vertices[xx, yy] = vert;
}
}
// Pass over the far edges and make sure the mesh streaches the whole area
for (int xx = 0; xx < sizeX; xx++)
{
vertices[xx, sizeY - 1].Position.Y = realSizeY + 1;
}
for (int yy = 0; yy < sizeY; yy++)
{
vertices[sizeX - 1, yy].Position.X = realSizeY + 1;
}
// Compute the normals
// Take three corners of each quad and calculate the normal for the vector
// a--b--e--...
// | | |
// d--c--h--...
// The triangle a-b-d calculates the normal for a, etc
for (int xx = 0; xx < sizeX - 1; xx++)
{
for (int yy = 0; yy < sizeY - 1; yy++)
{
vertices[xx, yy].Normal = MakeNormal(vertices[xx, yy], vertices[xx + 1, yy], vertices[xx, yy + 1]);
}
}
// The vertices along the edges need an extra pass to compute the normals
for (int xx = 0; xx < sizeX - 1; xx++)
{
vertices[xx, sizeY - 1].Normal = MakeNormal(vertices[xx, sizeY - 1], vertices[xx + 1, sizeY - 1], vertices[xx, sizeY - 2]);
}
for (int yy = 0; yy < sizeY - 1; yy++)
{
vertices[sizeX - 1, yy].Normal = MakeNormal(vertices[sizeX - 1, yy], vertices[sizeX - 1, yy + 1], vertices[sizeX - 2, yy]);
}
vertices[sizeX - 1, sizeY - 1].Normal = MakeNormal(vertices[sizeX - 1, sizeY - 1], vertices[sizeX - 2, sizeY - 1], vertices[sizeX - 1, sizeY - 2]);
// Convert our vertices into the format expected by the caller
List <OMVR.Vertex> vertexList = new List <OMVR.Vertex>();
for (int xx = 0; xx < sizeX; xx++)
{
for (int yy = 0; yy < sizeY; yy++)
{
Vert vert = vertices[xx, yy];
OMVR.Vertex oVert = new OMVR.Vertex();
oVert.Position = vert.Position;
oVert.Normal = vert.Normal;
oVert.TexCoord = vert.TexCoord;
vertexList.Add(oVert);
}
}
// Make indices for all the vertices.
// Pass over the matrix and create two triangles for each quad
//
// 00-----01
// | f1 /|
// | / |
// | / f2 |
// 10-----11
//
// Counter Clockwise
for (int xx = 0; xx < sizeX - 1; xx++)
{
for (int yy = 0; yy < sizeY - 1; yy++)
{
indices.Add((ushort)vertices[xx + 0, yy + 0].index);
indices.Add((ushort)vertices[xx + 1, yy + 0].index);
indices.Add((ushort)vertices[xx + 0, yy + 1].index);
indices.Add((ushort)vertices[xx + 0, yy + 1].index);
indices.Add((ushort)vertices[xx + 1, yy + 0].index);
indices.Add((ushort)vertices[xx + 1, yy + 1].index);
}
}
OMVR.Face aface = new OMVR.Face();
aface.Vertices = vertexList;
aface.Indices = indices;
return(aface);
}
/// <summary>
/// Create a sculpty faceted mesh. The actual scuplt texture is fetched and passed to this
/// routine since all the context for finding teh texture is elsewhere.
/// </summary>
/// <returns>The faceted mesh or null if can't do it</returns>
public OMVR.FacetedMesh GenerateFacetedSculptMesh(OMV.Primitive prim, System.Drawing.Bitmap scupltTexture, OMVR.DetailLevel lod)
{
byte sculptType = (byte)prim.Sculpt.Type;
bool mirror = ((sculptType & 128) != 0);
bool invert = ((sculptType & 64) != 0);
// mirror = false; // TODO: libomv doesn't support these and letting them flop around causes problems
// invert = false;
OMV.SculptType omSculptType = (OMV.SculptType)(sculptType & 0x07);
PrimMesher.SculptMesh.SculptType smSculptType;
switch (omSculptType)
{
case OpenMetaverse.SculptType.Cylinder:
smSculptType = PrimMesher.SculptMesh.SculptType.cylinder;
break;
case OpenMetaverse.SculptType.Plane:
smSculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
case OpenMetaverse.SculptType.Sphere:
smSculptType = PrimMesher.SculptMesh.SculptType.sphere;
break;
case OpenMetaverse.SculptType.Torus:
smSculptType = PrimMesher.SculptMesh.SculptType.torus;
break;
default:
smSculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
}
// The lod for sculpties is the resolution of the texture passed.
// The first guess is 1:1 then lower resolutions after that
// int mesherLod = (int)Math.Sqrt(scupltTexture.Width * scupltTexture.Height);
int mesherLod = 32; // number used in Idealist viewer
switch (lod)
{
case OMVR.DetailLevel.Highest:
break;
case OMVR.DetailLevel.High:
break;
case OMVR.DetailLevel.Medium:
mesherLod /= 2;
break;
case OMVR.DetailLevel.Low:
mesherLod /= 4;
break;
}
PrimMesher.SculptMesh newMesh =
new PrimMesher.SculptMesh(scupltTexture, smSculptType, mesherLod, true, mirror, invert);
int numPrimFaces = 1; // a scuplty has only one face
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List<OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List<OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List<OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List<OMVR.PathPoint>();
for (int ii = 0; ii < numPrimFaces; ii++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List<OMVR.Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)ii);
int faceVertices = 0;
foreach (PrimMesher.ViewerFace vface in newMesh.viewerFaces)
{
OMVR.Vertex vert = new OMVR.Vertex();
vert.Position = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
vert.TexCoord = new OMV.Vector2(vface.uv1.U, 1.0f - vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
oface.Vertices.Add(vert);
vert = new OMVR.Vertex();
vert.Position = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
vert.TexCoord = new OMV.Vector2(vface.uv2.U, 1.0f - vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
oface.Vertices.Add(vert);
vert = new OMVR.Vertex();
vert.Position = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
vert.TexCoord = new OMV.Vector2(vface.uv3.U, 1.0f - vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
oface.Vertices.Add(vert);
oface.Indices.Add((ushort)(faceVertices * 3 + 0));
oface.Indices.Add((ushort)(faceVertices * 3 + 1));
oface.Indices.Add((ushort)(faceVertices * 3 + 2));
faceVertices++;
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return omvrmesh;
}
/// <summary>
/// Load the mesh from a stream
/// </summary>
/// <param name="filename">The filename and path of the file containing the mesh data</param>
public virtual void LoadMesh(string filename)
{
using(FileStream meshData = new FileStream(filename, FileMode.Open, FileAccess.Read))
using (EndianAwareBinaryReader reader = new EndianAwareBinaryReader(meshData))
{
Header = TrimAt0(reader.ReadString(24));
if (!String.Equals(Header, MeshHeader))
throw new FileLoadException("Unrecognized mesh format");
// Populate base mesh parameters
HasWeights = (reader.ReadByte() != 0);
HasDetailTexCoords = (reader.ReadByte() != 0);
Position = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
RotationAngles = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
/* RotationOrder = */ reader.ReadByte();
Scale = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
// Populate the vertex array
NumVertices = reader.ReadUInt16();
Vertices = new Vertex[NumVertices];
for (int i = 0; i < NumVertices; i++)
Vertices[i].Coord = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
for (int i = 0; i < NumVertices; i++)
Vertices[i].Normal = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
for (int i = 0; i < NumVertices; i++)
Vertices[i].BiNormal = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
for (int i = 0; i < NumVertices; i++)
Vertices[i].TexCoord = new Vector2(reader.ReadSingle(), reader.ReadSingle());
if (HasDetailTexCoords)
{
for (int i = 0; i < NumVertices; i++)
Vertices[i].DetailTexCoord = new Vector2(reader.ReadSingle(), reader.ReadSingle());
}
if (HasWeights)
{
for (int i = 0; i < NumVertices; i++)
Vertices[i].Weight = reader.ReadSingle();
}
NumFaces = reader.ReadUInt16();
Faces = new Face[NumFaces];
for (int i = 0; i < NumFaces; i++)
Faces[i].Indices = new[] { reader.ReadInt16(), reader.ReadInt16(), reader.ReadInt16() };
if (HasWeights)
{
NumSkinJoints = reader.ReadUInt16();
SkinJoints = new string[NumSkinJoints];
for (int i = 0; i < NumSkinJoints; i++)
{
SkinJoints[i] = TrimAt0(reader.ReadString(64));
}
}
else
{
NumSkinJoints = 0;
SkinJoints = new string[0];
}
// Grab morphs
List<Morph> morphs = new List<Morph>();
string morphName = TrimAt0(reader.ReadString(64));
while (morphName != MorphFooter)
{
if (reader.BaseStream.Position + 48 >= reader.BaseStream.Length)
throw new FileLoadException("Encountered end of file while parsing morphs");
Morph morph = new Morph();
morph.Name = morphName;
morph.NumVertices = reader.ReadInt32();
morph.Vertices = new MorphVertex[morph.NumVertices];
for (int i = 0; i < morph.NumVertices; i++)
{
morph.Vertices[i].VertexIndex = reader.ReadUInt32();
morph.Vertices[i].Coord = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
morph.Vertices[i].Normal = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
morph.Vertices[i].BiNormal = new Vector3(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
morph.Vertices[i].TexCoord = new Vector2(reader.ReadSingle(), reader.ReadSingle());
}
morphs.Add(morph);
// Grab the next name
morphName = TrimAt0(reader.ReadString(64));
}
Morphs = morphs.ToArray();
// Check if there are remaps or if we're at the end of the file
if (reader.BaseStream.Position < reader.BaseStream.Length - 1)
{
NumRemaps = reader.ReadInt32();
VertexRemaps = new VertexRemap[NumRemaps];
for (int i = 0; i < NumRemaps; i++)
{
VertexRemaps[i].RemapSource = reader.ReadInt32();
VertexRemaps[i].RemapDestination = reader.ReadInt32();
}
}
else
{
NumRemaps = 0;
VertexRemaps = new VertexRemap[0];
}
}
// uncompress the skin weights
if (Skeleton != null)
{
// some meshes aren't weighted, which doesn't make much sense.
// we check for left and right eyeballs, and assign them a 100%
// to their respective bone
List<string> expandedJointList = Skeleton.BuildExpandedJointList(SkinJoints);
if (expandedJointList.Count == 0)
{
if (Name == "eyeBallLeftMesh")
{
expandedJointList.AddRange(new[] { "mEyeLeft", "mSkull" });
}
else if (Name == "eyeBallRightMesh")
{
expandedJointList.AddRange(new[] { "mEyeRight", "mSkull" });
}
}
if (expandedJointList.Count > 0)
ExpandCompressedSkinWeights(expandedJointList);
}
}
public RenderingMesh GetRenderingMesh(LLPrimitive prim, DetailLevel lod)
{
RenderingMesh mesh;
ulong physicsKey = prim.GetPhysicsKey();
// Try a cache lookup first
if (m_meshCache != null && m_meshCache.TryGetRenderingMesh(physicsKey, lod, out mesh))
{
return(mesh);
}
// Can't go any further without a prim renderer
if (m_renderer == null)
{
return(null);
}
// Convert our DetailLevel to the OpenMetaverse.Rendering DetailLevel
OpenMetaverse.Rendering.DetailLevel detailLevel;
switch (lod)
{
case DetailLevel.Low:
detailLevel = OpenMetaverse.Rendering.DetailLevel.Low;
break;
case DetailLevel.Medium:
detailLevel = OpenMetaverse.Rendering.DetailLevel.Medium;
break;
case DetailLevel.High:
detailLevel = OpenMetaverse.Rendering.DetailLevel.High;
break;
case DetailLevel.Highest:
default:
detailLevel = OpenMetaverse.Rendering.DetailLevel.Highest;
break;
}
FacetedMesh facetedMesh = null;
if (prim.Prim.Sculpt != null && prim.Prim.Sculpt.SculptTexture != UUID.Zero)
{
// Sculpty meshing
Bitmap sculptTexture = GetSculptMap(prim.Prim.Sculpt.SculptTexture);
if (sculptTexture != null)
{
facetedMesh = m_renderer.GenerateFacetedSculptMesh(prim.Prim, sculptTexture, detailLevel);
}
}
else
{
// Basic prim meshing
facetedMesh = m_renderer.GenerateFacetedMesh(prim.Prim, detailLevel);
}
if (facetedMesh != null)
{
#region FacetedMesh to RenderingMesh Conversion
mesh = new RenderingMesh();
mesh.Faces = new RenderingMesh.Face[facetedMesh.Faces.Count];
for (int i = 0; i < facetedMesh.Faces.Count; i++)
{
Face face = facetedMesh.Faces[i];
Vertex[] vertices = new Vertex[face.Vertices.Count];
for (int j = 0; j < face.Vertices.Count; j++)
{
OpenMetaverse.Rendering.Vertex omvrVertex = face.Vertices[j];
vertices[j] = new Vertex {
Position = omvrVertex.Position, Normal = omvrVertex.Normal, TexCoord = omvrVertex.TexCoord
};
}
ushort[] indices = face.Indices.ToArray();
mesh.Faces[i] = new RenderingMesh.Face {
Vertices = vertices, Indices = indices
};
}
#endregion FacetedMesh to RenderingMesh Conversion
// Store the result in the mesh cache, if we have one
if (m_meshCache != null)
{
m_meshCache.StoreRenderingMesh(physicsKey, lod, mesh);
}
return(mesh);
}
else
{
return(null);
}
}
private static void LerpPlanarVertex(Vertex v0, Vertex v1, Vertex v2, ref Vertex vout, float coef01, float coef02)
{
vout.Position = v0.Position + ((v1.Position - v0.Position) * coef01) + ((v2.Position - v0.Position) * coef02);
vout.TexCoord = v0.TexCoord + ((v1.TexCoord - v0.TexCoord) * coef01) + ((v2.TexCoord - v0.TexCoord) * coef02);
vout.Normal = v0.Normal;
vout.Binormal = v0.Binormal;
}
private static void CreateSide(ref Face face, LLObject.ObjectData prim, List<Vertex> primVertices, Path path,
Profile profile)
{
bool flat = (face.Mask & FaceMask.Flat) != 0;
int maxS = profile.Positions.Count;
int s, t, i;
float ss, tt;
int numVertices = face.NumS * face.NumT;
int numIndices = (face.NumS - 1) * (face.NumT - 1) * 6;
face.Center = Vector3.Zero;
int beginSTex = (int)Math.Floor(profile.Positions[face.BeginS].Z);
int numS =
(((face.Mask & FaceMask.Inner) != 0) && ((face.Mask & FaceMask.Flat) != 0) && face.NumS > 2) ?
face.NumS / 2 :
face.NumS;
int curVertex = 0;
// Copy the vertices into the array
for (t = face.BeginT; t < face.BeginT + face.NumT; t++)
{
tt = path.Points[t].TexT;
for (s = 0; s < numS; s++)
{
if ((face.Mask & FaceMask.End) != 0)
{
if (s != 0)
ss = 1f;
else
ss = 0f;
}
else
{
// Get s value for tex-coord
if (!flat)
ss = profile.Positions[face.BeginS + s].Z;
else
ss = profile.Positions[face.BeginS + s].Z - beginSTex;
}
// Check to see if this triangle wraps around the array
if (face.BeginS + s >= maxS)
i = face.BeginS + s + maxS * (t - 1); // We're wrapping
else
i = face.BeginS + s + maxS * t;
Vertex vertex = new Vertex();
vertex.Position = primVertices[i].Position;
vertex.TexCoord = new Vector2(ss, tt);
vertex.Normal = Vector3.Zero;
vertex.Binormal = Vector3.Zero;
if (curVertex == 0)
face.MinExtent = face.MaxExtent = primVertices[i].Position;
else
UpdateMinMax(ref face, primVertices[i].Position);
face.Vertices.Add(vertex);
++curVertex;
if (((face.Mask & FaceMask.Inner) != 0) && ((face.Mask & FaceMask.Flat) != 0) && face.NumS > 2 && s > 0)
{
vertex.Position = primVertices[i].Position;
//vertex.TexCoord = new Vector2(ss, tt);
//vertex.Normal = Vector3.Zero;
//vertex.Binormal = Vector3.Zero;
face.Vertices.Add(vertex);
++curVertex;
}
}
if (((face.Mask & FaceMask.Inner) != 0) && ((face.Mask & FaceMask.Flat) != 0) && face.NumS > 2)
{
if ((face.Mask & FaceMask.Open) != 0)
s = numS - 1;
else
s = 0;
i = face.BeginS + s + maxS * t;
ss = profile.Positions[face.BeginS + s].Z - beginSTex;
Vertex vertex = new Vertex();
vertex.Position = primVertices[i].Position;
vertex.TexCoord = new Vector2(ss, tt);
vertex.Normal = Vector3.Zero;
vertex.Binormal = Vector3.Zero;
UpdateMinMax(ref face, vertex.Position);
face.Vertices.Add(vertex);
++curVertex;
}
}
face.Center = (face.MinExtent + face.MaxExtent) * 0.5f;
bool flatFace = ((face.Mask & FaceMask.Flat) != 0);
// Now we generate the indices
for (t = 0; t < (face.NumT - 1); t++)
{
for (s = 0; s < (face.NumS - 1); s++)
{
face.Indices.Add((ushort)(s + face.NumS * t)); // Bottom left
face.Indices.Add((ushort)(s + 1 + face.NumS * (t + 1))); // Top right
face.Indices.Add((ushort)(s + face.NumS * (t + 1))); // Top left
face.Indices.Add((ushort)(s + face.NumS * t)); // Bottom left
face.Indices.Add((ushort)(s + 1 + face.NumS * t)); // Bottom right
face.Indices.Add((ushort)(s + 1 + face.NumS * (t + 1))); // Top right
face.Edge.Add((face.NumS - 1) * 2 * t + s * 2 + 1); // Bottom left/top right neighbor face
if (t < face.NumT - 2) // Top right/top left neighbor face
face.Edge.Add((face.NumS - 1) * 2 * (t + 1) + s * 2 + 1);
else if (face.NumT <= 3 || path.Open) // No neighbor
face.Edge.Add(-1);
else // Wrap on T
face.Edge.Add(s * 2 + 1);
if (s > 0) // Top left/bottom left neighbor face
face.Edge.Add((face.NumS - 1) * 2 * t + s * 2 - 1);
else if (flatFace || profile.Open) // No neighbor
face.Edge.Add(-1);
else // Wrap on S
face.Edge.Add((face.NumS - 1) * 2 * t + (face.NumS - 2) * 2 + 1);
if (t > 0) // Bottom left/bottom right neighbor face
face.Edge.Add((face.NumS - 1) * 2 * (t - 1) + s * 2);
else if (face.NumT <= 3 || path.Open) // No neighbor
face.Edge.Add(-1);
else // Wrap on T
face.Edge.Add((face.NumS - 1) * 2 * (face.NumT - 2) + s * 2);
if (s < face.NumS - 2) // Bottom right/top right neighbor face
face.Edge.Add((face.NumS - 1) * 2 * t + (s + 1) * 2);
else if (flatFace || profile.Open) // No neighbor
face.Edge.Add(-1);
else // Wrap on S
face.Edge.Add((face.NumS - 1) * 2 * t);
face.Edge.Add((face.NumS - 1) * 2 * t + s * 2); // Top right/bottom left neighbor face
}
}
// Generate normals, loop through each triangle
for (i = 0; i < face.Indices.Count / 3; i++)
{
Vertex v0 = face.Vertices[face.Indices[i * 3 + 0]];
Vertex v1 = face.Vertices[face.Indices[i * 3 + 1]];
Vertex v2 = face.Vertices[face.Indices[i * 3 + 2]];
// Calculate triangle normal
Vector3 norm = (v0.Position - v1.Position) % (v0.Position - v2.Position);
// Calculate binormal
Vector3 binorm = CalcBinormalFromTriangle(v0.Position, v0.TexCoord, v1.Position, v1.TexCoord,
v2.Position, v2.TexCoord);
// Add triangle normal to vertices
for (int j = 0; j < 3; j++)
{
Vertex vertex = face.Vertices[face.Indices[i * 3 + j]];
vertex.Normal += norm;
vertex.Binormal += binorm;
face.Vertices[face.Indices[i * 3 + j]] = vertex;
}
// Even out quad contributions
if (i % 2 == 0)
{
Vertex vertex = face.Vertices[face.Indices[i * 3 + 2]];
vertex.Normal += norm;
vertex.Binormal += binorm;
face.Vertices[face.Indices[i * 3 + 2]] = vertex;
}
else
{
Vertex vertex = face.Vertices[face.Indices[i * 3 + 1]];
vertex.Normal += norm;
vertex.Binormal += binorm;
face.Vertices[face.Indices[i * 3 + 1]] = vertex;
}
}
// Adjust normals based on wrapping and stitching
Vector3 test1 =
face.Vertices[0].Position -
face.Vertices[face.NumS * (face.NumT - 2)].Position;
Vector3 test2 =
face.Vertices[face.NumS - 1].Position -
face.Vertices[face.NumS * (face.NumT - 2) +
face.NumS - 1].Position;
bool sBottomConverges = (test1.LengthSquared() < 0.000001f);
bool sTopConverges = (test2.LengthSquared() < 0.000001f);
// TODO: Sculpt support
Primitive.SculptType sculptType = Primitive.SculptType.None;
if (sculptType == Primitive.SculptType.None)
{
if (!path.Open)
{
// Wrap normals on T
for (i = 0; i < face.NumS; i++)
{
Vector3 norm = face.Vertices[i].Normal + face.Vertices[face.NumS * (face.NumT - 1) + i].Normal;
Vertex vertex = face.Vertices[i];
vertex.Normal = norm;
face.Vertices[i] = vertex;
vertex = face.Vertices[face.NumS * (face.NumT - 1) + i];
vertex.Normal = norm;
face.Vertices[face.NumS * (face.NumT - 1) + i] = vertex;
}
}
if (!profile.Open && !sBottomConverges)
{
// Wrap normals on S
for (i = 0; i < face.NumT; i++)
{
Vector3 norm = face.Vertices[face.NumS * i].Normal + face.Vertices[face.NumS * i + face.NumS - 1].Normal;
Vertex vertex = face.Vertices[face.NumS * i];
vertex.Normal = norm;
face.Vertices[face.NumS * i] = vertex;
vertex = face.Vertices[face.NumS * i + face.NumS - 1];
vertex.Normal = norm;
face.Vertices[face.NumS * i + face.NumS - 1] = vertex;
}
}
if (prim.PathCurve == LLObject.PathCurve.Circle &&
prim.ProfileCurve == LLObject.ProfileCurve.HalfCircle)
{
if (sBottomConverges)
{
// All lower S have same normal
Vector3 unitX = new Vector3(1f, 0f, 0f);
for (i = 0; i < face.NumT; i++)
{
Vertex vertex = face.Vertices[face.NumS * i];
vertex.Normal = unitX;
face.Vertices[face.NumS * i] = vertex;
}
}
if (sTopConverges)
{
// All upper S have same normal
Vector3 negUnitX = new Vector3(-1f, 0f, 0f);
for (i = 0; i < face.NumT; i++)
{
Vertex vertex = face.Vertices[face.NumS * i + face.NumS - 1];
vertex.Normal = negUnitX;
face.Vertices[face.NumS * i + face.NumS - 1] = vertex;
}
}
}
}
else
{
// FIXME: Sculpt support
}
// Normalize normals and binormals
for (i = 0; i < face.Vertices.Count; i++)
{
Vertex vertex = face.Vertices[i];
vertex.Normal.Normalize();
vertex.Binormal.Normalize();
face.Vertices[i] = vertex;
}
}
/// <summary>
/// Method for generating mesh Face from a heightmap
/// </summary>
/// <param name="zMap">Two dimension array of floats containing height information</param>
/// <param name="xBegin">Starting value for X</param>
/// <param name="xEnd">Max value for X</param>
/// <param name="yBegin">Starting value for Y</param>
/// <param name="yEnd">Max value of Y</param>
/// <returns></returns>
public OMVR.Face TerrainMesh(float[,] zMap, float xBegin, float xEnd, float yBegin, float yEnd)
{
PrimMesher.SculptMesh newMesh = new PrimMesher.SculptMesh(zMap, xBegin, xEnd, yBegin, yEnd, true);
OMVR.Face terrain = new OMVR.Face();
int faceVertices = newMesh.coords.Count;
terrain.Vertices = new List<Vertex>(faceVertices);
terrain.Indices = new List<ushort>(newMesh.faces.Count * 3);
for (int j = 0; j < faceVertices; j++)
{
var vert = new OMVR.Vertex();
vert.Position = new Vector3(newMesh.coords[j].X, newMesh.coords[j].Y, newMesh.coords[j].Z);
vert.Normal = new Vector3(newMesh.normals[j].X, newMesh.normals[j].Y, newMesh.normals[j].Z);
vert.TexCoord = new Vector2(newMesh.uvs[j].U, newMesh.uvs[j].V);
terrain.Vertices.Add(vert);
}
for (int j = 0; j < newMesh.faces.Count; j++)
{
terrain.Indices.Add((ushort)newMesh.faces[j].v1);
terrain.Indices.Add((ushort)newMesh.faces[j].v2);
terrain.Indices.Add((ushort)newMesh.faces[j].v3);
}
return terrain;
}
/// <summary>
/// Generates a a series of faces, each face containing a mesh and
/// metadata
/// </summary>
/// <param name="prim">Primitive to generate the mesh from</param>
/// <param name="lod">Level of detail to generate the mesh at</param>
/// <returns>The generated mesh</returns >
public OMVR.FacetedMesh GenerateFacetedMesh(OMV.Primitive prim, OMVR.DetailLevel lod)
{
bool isSphere = ((OMV.ProfileCurve)(prim.PrimData.profileCurve & 0x07) == OMV.ProfileCurve.HalfCircle);
PrimMesher.PrimMesh newPrim = GeneratePrimMesh(prim, lod, true);
if (newPrim == null)
return null;
int numViewerFaces = newPrim.viewerFaces.Count;
int numPrimFaces = newPrim.numPrimFaces;
for (uint i = 0; i < numViewerFaces; i++)
{
PrimMesher.ViewerFace vf = newPrim.viewerFaces[(int)i];
if (isSphere)
{
vf.uv1.U = (vf.uv1.U - 0.5f) * 2.0f;
vf.uv2.U = (vf.uv2.U - 0.5f) * 2.0f;
vf.uv3.U = (vf.uv3.U - 0.5f) * 2.0f;
}
}
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List<OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List<OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List<OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List<OMVR.PathPoint>();
Dictionary<OMV.Vector3, int> vertexAccount = new Dictionary<OMV.Vector3, int>();
for (int ii = 0; ii < numPrimFaces; ii++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List<OMVR.Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)ii);
int faceVertices = 0;
vertexAccount.Clear();
OMV.Vector3 pos;
int indx;
OMVR.Vertex vert;
foreach (PrimMesher.ViewerFace vface in newPrim.viewerFaces)
{
if (vface.primFaceNumber == ii)
{
faceVertices++;
pos = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
if (vertexAccount.ContainsKey(pos))
{
// we aleady have this vertex in the list. Just point the index at it
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
// the vertex is not in the list. Add it and the new index.
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv1.U, 1.0f - vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv2.U, 1.0f - vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv3.U, 1.0f - vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
}
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return omvrmesh;
}
/// <summary>
/// Generates a a series of faces, each face containing a mesh and
/// metadata
/// </summary>
/// <param name="prim">Primitive to generate the mesh from</param>
/// <param name="lod">Level of detail to generate the mesh at</param>
/// <returns>The generated mesh</returns >
public OMVR.FacetedMesh GenerateFacetedMesh(OMV.Primitive prim, OMVR.DetailLevel lod)
{
bool isSphere = ((OMV.ProfileCurve)(prim.PrimData.profileCurve & 0x07) == OMV.ProfileCurve.HalfCircle);
PrimMesher.PrimMesh newPrim = GeneratePrimMesh(prim, lod, true);
if (newPrim == null)
{
return(null);
}
int numViewerFaces = newPrim.viewerFaces.Count;
int numPrimFaces = newPrim.numPrimFaces;
for (uint i = 0; i < numViewerFaces; i++)
{
PrimMesher.ViewerFace vf = newPrim.viewerFaces[(int)i];
if (isSphere)
{
vf.uv1.U = (vf.uv1.U - 0.5f) * 2.0f;
vf.uv2.U = (vf.uv2.U - 0.5f) * 2.0f;
vf.uv3.U = (vf.uv3.U - 0.5f) * 2.0f;
}
}
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List <OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List <OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List <OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List <OMVR.PathPoint>();
Dictionary <OMV.Vector3, int> vertexAccount = new Dictionary <OMV.Vector3, int>();
for (int ii = 0; ii < numPrimFaces; ii++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List <OMVR.Vertex>();
oface.Indices = new List <ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)ii);
int faceVertices = 0;
vertexAccount.Clear();
OMV.Vector3 pos;
int indx;
OMVR.Vertex vert;
foreach (PrimMesher.ViewerFace vface in newPrim.viewerFaces)
{
if (vface.primFaceNumber == ii)
{
faceVertices++;
pos = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
if (vertexAccount.ContainsKey(pos))
{
// we aleady have this vertex in the list. Just point the index at it
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
// the vertex is not in the list. Add it and the new index.
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv1.U, 1.0f - vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv2.U, 1.0f - vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv3.U, 1.0f - vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
}
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return(omvrmesh);
}
private List<Face> GenerateFaces(Primitive prim)
{
MeshmerizerMesh meshmerizer = new MeshmerizerMesh();
meshmerizer = GenerateMeshmerizerMesh(prim);
// Create the vertex array
List<Vertex> vertices = new List<Vertex>(meshmerizer.primMesh.coords.Count);
for (int i = 0; i < meshmerizer.primMesh.coords.Count; i++)
{
Coord c = meshmerizer.primMesh.coords[i];
Vertex vertex = new Vertex();
vertex.Position = new Vector3(c.X, c.Y, c.Z);
vertices.Add(vertex);
}
// Create the index array
List<ushort> indices = new List<ushort>(meshmerizer.primMesh.faces.Count * 3);
for (int i = 0; i < meshmerizer.primMesh.faces.Count; i++)
{
MeshmerizerFace f = meshmerizer.primMesh.faces[i];
indices.Add((ushort)f.v1);
indices.Add((ushort)f.v2);
indices.Add((ushort)f.v3);
}
Face face = new Face();
face.Edge = new List<int>();
face.TextureFace = prim.Textures.DefaultTexture;
face.Vertices = vertices;
face.Indices = indices;
List<Face> faces = new List<Face>(1);
faces.Add(face);
return faces;
}
//public void SetView(OpenMetaverse.Vector3 center, int roll, int pitch, int yaw, int zoom)
//{
// this.Center = center;
// scrollRoll.Value = roll;
// scrollPitch.Value = pitch;
// scrollYaw.Value = yaw;
// scrollZoom.Value = zoom;
//}
public static FacetedMesh GenerateFacetedMesh(Primitive prim, OSDMap MeshData, DetailLevel LOD)
{
FacetedMesh ret = new FacetedMesh();
ret.Faces = new List<Face>();
ret.Prim = prim;
ret.Profile = new Profile();
ret.Profile.Faces = new List<ProfileFace>();
ret.Profile.Positions = new List<OpenMetaverse.Vector3>();
ret.Path = new OpenMetaverse.Rendering.Path();
ret.Path.Points = new List<PathPoint>();
try
{
OSD facesOSD = null;
switch (LOD)
{
default:
case DetailLevel.Highest:
facesOSD = MeshData["high_lod"];
break;
case DetailLevel.High:
facesOSD = MeshData["medium_lod"];
break;
case DetailLevel.Medium:
facesOSD = MeshData["low_lod"];
break;
case DetailLevel.Low:
facesOSD = MeshData["lowest_lod"];
break;
}
if (facesOSD == null || !(facesOSD is OSDArray))
{
return ret;
}
OSDArray decodedMeshOsdArray = (OSDArray)facesOSD;
for (int faceNr = 0; faceNr < decodedMeshOsdArray.Count; faceNr++)
{
OSD subMeshOsd = decodedMeshOsdArray[faceNr];
Face oface = new Face();
oface.ID = faceNr;
oface.Vertices = new List<Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)faceNr);
if (subMeshOsd is OSDMap)
{
OSDMap subMeshMap = (OSDMap)subMeshOsd;
OpenMetaverse.Vector3 posMax = new OpenMetaverse.Vector3();
posMax = ((OSDMap)subMeshMap["PositionDomain"])["Max"];
OpenMetaverse.Vector3 posMin = new OpenMetaverse.Vector3();
posMin = ((OSDMap)subMeshMap["PositionDomain"])["Min"];
OpenMetaverse.Vector2 texPosMax = new OpenMetaverse.Vector2();
texPosMax = ((OSDMap)subMeshMap["TexCoord0Domain"])["Max"];
OpenMetaverse.Vector2 texPosMin = new OpenMetaverse.Vector2();
texPosMin = ((OSDMap)subMeshMap["TexCoord0Domain"])["Min"];
byte[] posBytes = subMeshMap["Position"];
byte[] norBytes = subMeshMap["Normal"];
byte[] texBytes = subMeshMap["TexCoord0"];
for (int i = 0; i < posBytes.Length; i += 6)
{
ushort uX = Utils.BytesToUInt16(posBytes, i);
ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
Vertex vx = new Vertex();
vx.Position = new OpenMetaverse.Vector3(
Utils.UInt16ToFloat(uX, posMin.X, posMax.X),
Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y),
Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z));
ushort nX = Utils.BytesToUInt16(norBytes, i);
ushort nY = Utils.BytesToUInt16(norBytes, i + 2);
ushort nZ = Utils.BytesToUInt16(norBytes, i + 4);
vx.Normal = new OpenMetaverse.Vector3(
Utils.UInt16ToFloat(nX, posMin.X, posMax.X),
Utils.UInt16ToFloat(nY, posMin.Y, posMax.Y),
Utils.UInt16ToFloat(nZ, posMin.Z, posMax.Z));
var vertexIndexOffset = oface.Vertices.Count * 4;
if (texBytes != null && texBytes.Length >= vertexIndexOffset + 4)
{
ushort tX = Utils.BytesToUInt16(texBytes, vertexIndexOffset);
ushort tY = Utils.BytesToUInt16(texBytes, vertexIndexOffset + 2);
vx.TexCoord = new OpenMetaverse.Vector2(
Utils.UInt16ToFloat(tX, texPosMin.X, texPosMax.X),
Utils.UInt16ToFloat(tY, texPosMin.Y, texPosMax.Y));
}
oface.Vertices.Add(vx);
}
byte[] triangleBytes = subMeshMap["TriangleList"];
for (int i = 0; i < triangleBytes.Length; i += 6)
{
ushort v1 = (ushort)(Utils.BytesToUInt16(triangleBytes, i));
oface.Indices.Add(v1);
ushort v2 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 2));
oface.Indices.Add(v2);
ushort v3 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 4));
oface.Indices.Add(v3);
}
}
ret.Faces.Add(oface);
}
}
catch (Exception ex)
{
Logger.Log("Failed to decode mesh asset: " + ex.Message, Helpers.LogLevel.Warning);
}
return ret;
}
public RenderingMesh GetRenderingMesh(LLPrimitive prim, DetailLevel lod)
{
RenderingMesh mesh;
ulong physicsKey = prim.GetPhysicsKey();
// Try a cache lookup first
if (m_meshCache != null && m_meshCache.TryGetRenderingMesh(physicsKey, lod, out mesh))
return mesh;
// Can't go any further without a prim renderer
if (m_renderer == null)
return null;
// Convert our DetailLevel to the OpenMetaverse.Rendering DetailLevel
OpenMetaverse.Rendering.DetailLevel detailLevel;
switch (lod)
{
case DetailLevel.Low:
detailLevel = OpenMetaverse.Rendering.DetailLevel.Low;
break;
case DetailLevel.Medium:
detailLevel = OpenMetaverse.Rendering.DetailLevel.Medium;
break;
case DetailLevel.High:
detailLevel = OpenMetaverse.Rendering.DetailLevel.High;
break;
case DetailLevel.Highest:
default:
detailLevel = OpenMetaverse.Rendering.DetailLevel.Highest;
break;
}
FacetedMesh facetedMesh = null;
if (prim.Prim.Sculpt != null && prim.Prim.Sculpt.SculptTexture != UUID.Zero)
{
// Sculpty meshing
Bitmap sculptTexture = GetSculptMap(prim.Prim.Sculpt.SculptTexture);
if (sculptTexture != null)
facetedMesh = m_renderer.GenerateFacetedSculptMesh(prim.Prim, sculptTexture, detailLevel);
}
else
{
// Basic prim meshing
facetedMesh = m_renderer.GenerateFacetedMesh(prim.Prim, detailLevel);
}
if (facetedMesh != null)
{
#region FacetedMesh to RenderingMesh Conversion
mesh = new RenderingMesh();
mesh.Faces = new RenderingMesh.Face[facetedMesh.Faces.Count];
for (int i = 0; i < facetedMesh.Faces.Count; i++)
{
Face face = facetedMesh.Faces[i];
Vertex[] vertices = new Vertex[face.Vertices.Count];
for (int j = 0; j < face.Vertices.Count; j++)
{
OpenMetaverse.Rendering.Vertex omvrVertex = face.Vertices[j];
vertices[j] = new Vertex { Position = omvrVertex.Position, Normal = omvrVertex.Normal, TexCoord = omvrVertex.TexCoord };
}
ushort[] indices = face.Indices.ToArray();
mesh.Faces[i] = new RenderingMesh.Face { Vertices = vertices, Indices = indices };
}
#endregion FacetedMesh to RenderingMesh Conversion
// Store the result in the mesh cache, if we have one
if (m_meshCache != null)
m_meshCache.StoreRenderingMesh(physicsKey, lod, mesh);
return mesh;
}
else
{
return null;
}
}
/// <summary>
/// Generates a a series of faces, each face containing a mesh and
/// metadata
/// </summary>
/// <param name="prim">Primitive to generate the mesh from</param>
/// <param name="lod">Level of detail to generate the mesh at</param>
/// <returns>The generated mesh</returns >
public OMVR.FacetedMesh GenerateFacetedMesh(OMV.Primitive prim, OMVR.DetailLevel lod)
{
bool isSphere = ((OMV.ProfileCurve)(prim.PrimData.profileCurve & 0x07) == OMV.ProfileCurve.HalfCircle);
PrimMesher.PrimMesh newPrim = GeneratePrimMesh(prim, lod, true);
if (newPrim == null)
return null;
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List<OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List<OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List<OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List<OMVR.PathPoint>();
var indexer = newPrim.GetVertexIndexer();
for (int i = 0; i < indexer.numPrimFaces; i++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List<OMVR.Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)i);
for (int j = 0; j < indexer.viewerVertices[i].Count; j++)
{
var vert = new OMVR.Vertex();
var m = indexer.viewerVertices[i][j];
vert.Position = new Vector3(m.v.X, m.v.Y, m.v.Z);
vert.Normal = new Vector3(m.n.X, m.n.Y, m.n.Z);
vert.TexCoord = new OMV.Vector2(m.uv.U, 1.0f - m.uv.V);
oface.Vertices.Add(vert);
}
for (int j = 0; j < indexer.viewerPolygons[i].Count; j++)
{
var p = indexer.viewerPolygons[i][j];
// Skip "degenerate faces" where the same vertex appears twice in the same tri
if (p.v1 == p.v2 || p.v1 == p.v2 || p.v2 == p.v3) continue;
oface.Indices.Add((ushort)p.v1);
oface.Indices.Add((ushort)p.v2);
oface.Indices.Add((ushort)p.v3);
}
omvrmesh.Faces.Add(oface);
}
return omvrmesh;
}
/// <summary>
/// Generates a a series of faces, each face containing a mesh and
/// metadata
/// </summary>
/// <param name="prim">Primitive to generate the mesh from</param>
/// <param name="lod">Level of detail to generate the mesh at</param>
/// <returns>The generated mesh</returns >
public OMVR.FacetedMesh GenerateFacetedMesh(OMV.Primitive prim, OMVR.DetailLevel lod)
{
OMV.Primitive.ConstructionData primData = prim.PrimData;
int sides = 4;
int hollowsides = 4;
float profileBegin = primData.ProfileBegin;
float profileEnd = primData.ProfileEnd;
bool isSphere = false;
if ((OMV.ProfileCurve)(primData.profileCurve & 0x07) == OMV.ProfileCurve.Circle)
{
switch (lod)
{
case OMVR.DetailLevel.Low:
sides = 6;
break;
case OMVR.DetailLevel.Medium:
sides = 12;
break;
default:
sides = 24;
break;
}
}
else if ((OMV.ProfileCurve)(primData.profileCurve & 0x07) == OMV.ProfileCurve.EqualTriangle)
sides = 3;
else if ((OMV.ProfileCurve)(primData.profileCurve & 0x07) == OMV.ProfileCurve.HalfCircle)
{
// half circle, prim is a sphere
isSphere = true;
switch (lod)
{
case OMVR.DetailLevel.Low:
sides = 6;
break;
case OMVR.DetailLevel.Medium:
sides = 12;
break;
default:
sides = 24;
break;
}
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
if ((OMV.HoleType)primData.ProfileHole == OMV.HoleType.Same)
hollowsides = sides;
else if ((OMV.HoleType)primData.ProfileHole == OMV.HoleType.Circle)
{
switch (lod)
{
case OMVR.DetailLevel.Low:
hollowsides = 6;
break;
case OMVR.DetailLevel.Medium:
hollowsides = 12;
break;
default:
hollowsides = 24;
break;
}
}
else if ((OMV.HoleType)primData.ProfileHole == OMV.HoleType.Triangle)
hollowsides = 3;
PrimMesher.PrimMesh newPrim = new PrimMesher.PrimMesh(sides, profileBegin, profileEnd, (float)primData.ProfileHollow, hollowsides);
newPrim.viewerMode = true;
newPrim.holeSizeX = primData.PathScaleX;
newPrim.holeSizeY = primData.PathScaleY;
newPrim.pathCutBegin = primData.PathBegin;
newPrim.pathCutEnd = primData.PathEnd;
newPrim.topShearX = primData.PathShearX;
newPrim.topShearY = primData.PathShearY;
newPrim.radius = primData.PathRadiusOffset;
newPrim.revolutions = primData.PathRevolutions;
newPrim.skew = primData.PathSkew;
switch (lod)
{
case OMVR.DetailLevel.Low:
newPrim.stepsPerRevolution = 6;
break;
case OMVR.DetailLevel.Medium:
newPrim.stepsPerRevolution = 12;
break;
default:
newPrim.stepsPerRevolution = 24;
break;
}
if ((primData.PathCurve == OMV.PathCurve.Line) || (primData.PathCurve == OMV.PathCurve.Flexible))
{
newPrim.taperX = 1.0f - primData.PathScaleX;
newPrim.taperY = 1.0f - primData.PathScaleY;
newPrim.twistBegin = (int)(180 * primData.PathTwistBegin);
newPrim.twistEnd = (int)(180 * primData.PathTwist);
newPrim.ExtrudeLinear();
}
else
{
newPrim.taperX = primData.PathTaperX;
newPrim.taperY = primData.PathTaperY;
newPrim.twistBegin = (int)(360 * primData.PathTwistBegin);
newPrim.twistEnd = (int)(360 * primData.PathTwist);
newPrim.ExtrudeCircular();
}
int numViewerFaces = newPrim.viewerFaces.Count;
int numPrimFaces = newPrim.numPrimFaces;
for (uint i = 0; i < numViewerFaces; i++)
{
PrimMesher.ViewerFace vf = newPrim.viewerFaces[(int)i];
if (isSphere)
{
vf.uv1.U = (vf.uv1.U - 0.5f) * 2.0f;
vf.uv2.U = (vf.uv2.U - 0.5f) * 2.0f;
vf.uv3.U = (vf.uv3.U - 0.5f) * 2.0f;
}
}
if (m_shouldScale)
{
newPrim.Scale(prim.Scale.X, prim.Scale.Y, prim.Scale.Z);
}
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List<OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List<OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List<OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List<OMVR.PathPoint>();
Dictionary<OMV.Vector3, int> vertexAccount = new Dictionary<OMV.Vector3, int>();
for (int ii = 0; ii < numPrimFaces; ii++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List<OMVR.Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)ii);
int faceVertices = 0;
vertexAccount.Clear();
OMV.Vector3 pos;
int indx;
OMVR.Vertex vert;
foreach (PrimMesher.ViewerFace vface in newPrim.viewerFaces)
{
if (vface.primFaceNumber == ii)
{
faceVertices++;
pos = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
if (vertexAccount.ContainsKey(pos))
{
// we aleady have this vertex in the list. Just point the index at it
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
// the vertex is not in the list. Add it and the new index.
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv1.U, 1.0f - vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv2.U, 1.0f - vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv3.U, 1.0f - vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
}
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return omvrmesh;
}
void AddFacesFromPolyList(polylist list, mesh mesh, ModelPrim prim, Matrix4 transform)
{
string material = list.material;
source posSrc = null;
source normalSrc = null;
source uvSrc = null;
ulong stride = 0;
int posOffset = -1;
int norOffset = -1;
int uvOffset = -1;
foreach (var inp in list.input)
{
stride = Math.Max(stride, inp.offset);
if (inp.semantic == "VERTEX")
{
posSrc = FindSource(mesh.source, mesh.vertices.input[0].source);
posOffset = (int)inp.offset;
}
else if (inp.semantic == "NORMAL")
{
normalSrc = FindSource(mesh.source, inp.source);
norOffset = (int)inp.offset;
}
else if (inp.semantic == "TEXCOORD")
{
uvSrc = FindSource(mesh.source, inp.source);
uvOffset = (int)inp.offset;
}
}
stride += 1;
if (posSrc == null) return;
var vcount = StrToArray(list.vcount);
var idx = StrToArray(list.p);
Vector3[] normals = null;
if (normalSrc != null)
{
var norVal = ((float_array)normalSrc.Item).Values;
normals = new Vector3[norVal.Length / 3];
for (int i = 0; i < normals.Length; i++)
{
normals[i] = new Vector3((float)norVal[i * 3 + 0], (float)norVal[i * 3 + 1], (float)norVal[i * 3 + 2]);
normals[i] = Vector3.TransformNormal(normals[i], transform);
normals[i].Normalize();
}
}
Vector2[] uvs = null;
if (uvSrc != null)
{
var uvVal = ((float_array)uvSrc.Item).Values;
uvs = new Vector2[uvVal.Length / 2];
for (int i = 0; i < uvs.Length; i++)
{
uvs[i] = new Vector2((float)uvVal[i * 2 + 0], (float)uvVal[i * 2 + 1]);
}
}
ModelFace face = new ModelFace();
face.MaterialID = list.material;
if (face.MaterialID != null)
{
if (MatSymTarget.ContainsKey(list.material))
{
ModelMaterial mat = Materials.Find(m => m.ID == MatSymTarget[list.material]);
if (mat != null)
{
face.Material = mat;
}
}
}
int curIdx = 0;
for (int i = 0; i < vcount.Length; i++)
{
var nvert = vcount[i];
if (nvert < 3 || nvert > 4)
{
throw new InvalidDataException("Only triangles and quads supported");
}
Vertex[] verts = new Vertex[nvert];
for (int j = 0; j < nvert; j++)
{
verts[j].Position = prim.Positions[idx[curIdx + posOffset + (int)stride * j]];
if (normals != null)
{
verts[j].Normal = normals[idx[curIdx + norOffset + (int)stride * j]];
}
if (uvs != null)
{
verts[j].TexCoord = uvs[idx[curIdx + uvOffset + (int)stride * j]];
}
}
if (nvert == 3) // add the triangle
{
face.AddVertex(verts[0]);
face.AddVertex(verts[1]);
face.AddVertex(verts[2]);
}
else if (nvert == 4) // quad, add two triangles
{
face.AddVertex(verts[0]);
face.AddVertex(verts[1]);
face.AddVertex(verts[2]);
face.AddVertex(verts[0]);
face.AddVertex(verts[2]);
face.AddVertex(verts[3]);
}
curIdx += (int)stride * nvert;
}
prim.Faces.Add(face);
}
private OMVR.FacetedMesh GenerateIRendererMesh(int numPrimFaces, OMV.Primitive prim,
List <PrimMesher.ViewerFace> viewerFaces)
{
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List <OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List <OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List <OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List <OMVR.PathPoint>();
Dictionary <OMV.Vector3, int> vertexAccount = new Dictionary <OMV.Vector3, int>();
OMV.Vector3 pos;
int indx;
OMVR.Vertex vert;
for (int ii = 0; ii < numPrimFaces; ii++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List <OMVR.Vertex>();
oface.Indices = new List <ushort>();
if (prim.Textures == null)
{
oface.TextureFace = null;
}
else
{
oface.TextureFace = prim.Textures.GetFace((uint)ii);
}
int faceVertices = 0;
vertexAccount.Clear();
foreach (PrimMesher.ViewerFace vface in viewerFaces)
{
if (vface.primFaceNumber == ii)
{
faceVertices++;
pos = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv1.U, vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
vert.Normal.Normalize();
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv2.U, vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
vert.Normal.Normalize();
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
if (vertexAccount.ContainsKey(pos))
{
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else
{
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv3.U, vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
vert.Normal.Normalize();
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
}
}
if (faceVertices > 0)
{
oface.TextureFace = null;
if (prim.Textures != null)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return(omvrmesh);
}
/// <summary>
/// Create a sculpty faceted mesh. The actual scuplt texture is fetched and passed to this
/// routine since all the context for finding teh texture is elsewhere.
/// </summary>
/// <returns>The faceted mesh or null if can't do it</returns>
public OMVR.FacetedMesh GenerateFacetedSculptMesh(OMV.Primitive prim, System.Drawing.Bitmap scupltTexture, OMVR.DetailLevel lod)
{
PrimMesher.SculptMesh.SculptType smSculptType;
switch (prim.Sculpt.Type)
{
case OpenMetaverse.SculptType.Cylinder:
smSculptType = PrimMesher.SculptMesh.SculptType.cylinder;
break;
case OpenMetaverse.SculptType.Plane:
smSculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
case OpenMetaverse.SculptType.Sphere:
smSculptType = PrimMesher.SculptMesh.SculptType.sphere;
break;
case OpenMetaverse.SculptType.Torus:
smSculptType = PrimMesher.SculptMesh.SculptType.torus;
break;
default:
smSculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
}
// The lod for sculpties is the resolution of the texture passed.
// The first guess is 1:1 then lower resolutions after that
// int mesherLod = (int)Math.Sqrt(scupltTexture.Width * scupltTexture.Height);
int mesherLod = 32; // number used in Idealist viewer
switch (lod)
{
case OMVR.DetailLevel.Highest:
break;
case OMVR.DetailLevel.High:
break;
case OMVR.DetailLevel.Medium:
mesherLod /= 2;
break;
case OMVR.DetailLevel.Low:
mesherLod /= 4;
break;
}
PrimMesher.SculptMesh newMesh =
new PrimMesher.SculptMesh(scupltTexture, smSculptType, mesherLod, true, prim.Sculpt.Mirror, prim.Sculpt.Invert);
int numPrimFaces = 1; // a scuplty has only one face
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List<OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List<OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List<OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List<OMVR.PathPoint>();
Dictionary<OMVR.Vertex, int> vertexAccount = new Dictionary<OMVR.Vertex, int>();
for (int ii = 0; ii < numPrimFaces; ii++)
{
vertexAccount.Clear();
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List<OMVR.Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)ii);
int faceVertices = newMesh.coords.Count;
OMVR.Vertex vert;
for (int j = 0; j < faceVertices; j++)
{
vert = new OMVR.Vertex();
vert.Position = new Vector3(newMesh.coords[j].X, newMesh.coords[j].Y, newMesh.coords[j].Z);
vert.Normal = new Vector3(newMesh.normals[j].X, newMesh.normals[j].Y, newMesh.normals[j].Z);
vert.TexCoord = new Vector2(newMesh.uvs[j].U, newMesh.uvs[j].V);
oface.Vertices.Add(vert);
}
for (int j = 0; j < newMesh.faces.Count; j++)
{
oface.Indices.Add((ushort)newMesh.faces[j].v1);
oface.Indices.Add((ushort)newMesh.faces[j].v2);
oface.Indices.Add((ushort)newMesh.faces[j].v3);
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return omvrmesh;
}
/// <summary>
/// Decodes mesh asset into FacetedMesh
/// </summary>
/// <param name="prim">Mesh primitive</param>
/// <param name="meshAsset">Asset retrieved from the asset server</param>
/// <param name="LOD">Level of detail</param>
/// <param name="mesh">Resulting decoded FacetedMesh</param>
/// <returns>True if mesh asset decoding was successful</returns>
public static bool TryDecodeFromAsset(Primitive prim, AssetMesh meshAsset, DetailLevel LOD, out FacetedMesh mesh)
{
mesh = null;
try
{
if (!meshAsset.Decode())
{
return false;
}
OSDMap MeshData = meshAsset.MeshData;
mesh = new FacetedMesh();
mesh.Faces = new List<Face>();
mesh.Prim = prim;
mesh.Profile.Faces = new List<ProfileFace>();
mesh.Profile.Positions = new List<Vector3>();
mesh.Path.Points = new List<PathPoint>();
OSD facesOSD = null;
switch (LOD)
{
default:
case DetailLevel.Highest:
facesOSD = MeshData["high_lod"];
break;
case DetailLevel.High:
facesOSD = MeshData["medium_lod"];
break;
case DetailLevel.Medium:
facesOSD = MeshData["low_lod"];
break;
case DetailLevel.Low:
facesOSD = MeshData["lowest_lod"];
break;
}
if (facesOSD == null || !(facesOSD is OSDArray))
{
return false;
}
OSDArray decodedMeshOsdArray = (OSDArray)facesOSD;
for (int faceNr = 0; faceNr < decodedMeshOsdArray.Count; faceNr++)
{
OSD subMeshOsd = decodedMeshOsdArray[faceNr];
// Decode each individual face
if (subMeshOsd is OSDMap)
{
Face oface = new Face();
oface.ID = faceNr;
oface.Vertices = new List<Vertex>();
oface.Indices = new List<ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)faceNr);
OSDMap subMeshMap = (OSDMap)subMeshOsd;
Vector3 posMax;
Vector3 posMin;
// If PositionDomain is not specified, the default is from -0.5 to 0.5
if (subMeshMap.ContainsKey("PositionDomain"))
{
posMax = ((OSDMap)subMeshMap["PositionDomain"])["Max"];
posMin = ((OSDMap)subMeshMap["PositionDomain"])["Min"];
}
else
{
posMax = new Vector3(0.5f, 0.5f, 0.5f);
posMin = new Vector3(-0.5f, -0.5f, -0.5f);
}
// Vertex positions
byte[] posBytes = subMeshMap["Position"];
// Normals
byte[] norBytes = null;
if (subMeshMap.ContainsKey("Normal"))
{
norBytes = subMeshMap["Normal"];
}
// UV texture map
Vector2 texPosMax = Vector2.Zero;
Vector2 texPosMin = Vector2.Zero;
byte[] texBytes = null;
if (subMeshMap.ContainsKey("TexCoord0"))
{
texBytes = subMeshMap["TexCoord0"];
texPosMax = ((OSDMap)subMeshMap["TexCoord0Domain"])["Max"];
texPosMin = ((OSDMap)subMeshMap["TexCoord0Domain"])["Min"];
}
// Extract the vertex position data
// If present normals and texture coordinates too
for (int i = 0; i < posBytes.Length; i += 6)
{
ushort uX = Utils.BytesToUInt16(posBytes, i);
ushort uY = Utils.BytesToUInt16(posBytes, i + 2);
ushort uZ = Utils.BytesToUInt16(posBytes, i + 4);
Vertex vx = new Vertex();
vx.Position = new Vector3(
Utils.UInt16ToFloat(uX, posMin.X, posMax.X),
Utils.UInt16ToFloat(uY, posMin.Y, posMax.Y),
Utils.UInt16ToFloat(uZ, posMin.Z, posMax.Z));
if (norBytes != null && norBytes.Length >= i + 4)
{
ushort nX = Utils.BytesToUInt16(norBytes, i);
ushort nY = Utils.BytesToUInt16(norBytes, i + 2);
ushort nZ = Utils.BytesToUInt16(norBytes, i + 4);
vx.Normal = new Vector3(
Utils.UInt16ToFloat(nX, posMin.X, posMax.X),
Utils.UInt16ToFloat(nY, posMin.Y, posMax.Y),
Utils.UInt16ToFloat(nZ, posMin.Z, posMax.Z));
}
var vertexIndexOffset = oface.Vertices.Count * 4;
if (texBytes != null && texBytes.Length >= vertexIndexOffset + 4)
{
ushort tX = Utils.BytesToUInt16(texBytes, vertexIndexOffset);
ushort tY = Utils.BytesToUInt16(texBytes, vertexIndexOffset + 2);
vx.TexCoord = new Vector2(
Utils.UInt16ToFloat(tX, texPosMin.X, texPosMax.X),
Utils.UInt16ToFloat(tY, texPosMin.Y, texPosMax.Y));
}
oface.Vertices.Add(vx);
}
byte[] triangleBytes = subMeshMap["TriangleList"];
for (int i = 0; i < triangleBytes.Length; i += 6)
{
ushort v1 = (ushort)(Utils.BytesToUInt16(triangleBytes, i));
oface.Indices.Add(v1);
ushort v2 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 2));
oface.Indices.Add(v2);
ushort v3 = (ushort)(Utils.BytesToUInt16(triangleBytes, i + 4));
oface.Indices.Add(v3);
}
mesh.Faces.Add(oface);
}
}
}
catch (Exception ex)
{
Logger.Log("Failed to decode mesh asset: " + ex.Message, Helpers.LogLevel.Warning);
return false;
}
return true;
}
private static void CreateCap(ref Face face, List<Vertex> primVertices, Path path, Profile profile)
{
int i;
int numVertices = profile.Positions.Count;
//int numIndices = (numVertices - 2) * 3;
int maxS = profile.Positions.Count;
int maxT = path.Points.Count;
face.Center = Vector3.Zero;
int offset = 0;
if ((face.Mask & FaceMask.Top) != 0)
offset = (maxT - 1) * maxS;
else
offset = face.BeginS;
// Figure out the normal, assume all caps are flat faces.
// Cross product to get normals
Vector2 cuv;
Vector2 minUV = Vector2.Zero;
Vector2 maxUV = Vector2.Zero;
// Copy the vertices into the array
for (i = 0; i < numVertices; i++)
{
Vertex vertex = new Vertex();
if ((face.Mask & FaceMask.Top) != 0)
{
vertex.Position = primVertices[i + offset].Position;
vertex.TexCoord.X = profile.Positions[i].X + 0.5f;
vertex.TexCoord.Y = profile.Positions[i].Y + 0.5f;
}
else
{
// Mirror for underside
vertex.Position = primVertices[(numVertices - 1) - i].Position;
vertex.TexCoord.X = profile.Positions[i].X + 0.5f;
vertex.TexCoord.Y = 0.5f - profile.Positions[i].Y;
}
if (i == 0)
{
face.MinExtent = face.MaxExtent = primVertices[offset].Position;
minUV = maxUV = primVertices[offset].TexCoord;
}
else
{
UpdateMinMax(ref face, vertex.Position);
UpdateMinMax(ref minUV, ref maxUV, vertex.TexCoord);
}
face.Vertices.Add(vertex);
}
face.Center = (face.MinExtent + face.MaxExtent) * 0.5f;
cuv = (minUV + maxUV) * 0.5f;
Vector3 binormal = CalcBinormalFromTriangle(
face.Center, cuv,
face.Vertices[0].Position, face.Vertices[0].TexCoord,
face.Vertices[1].Position, face.Vertices[1].TexCoord);
binormal.Normalize();
Vector3 d0 = face.Center - face.Vertices[0].Position;
Vector3 d1 = face.Center - face.Vertices[1].Position;
Vector3 normal = ((face.Mask & FaceMask.Top) != 0) ? (d0 % d1) : (d1 % d0);
normal.Normalize();
// If not hollow and not open create a center point in the cap
if ((face.Mask & FaceMask.Hollow) == 0 && (face.Mask & FaceMask.Open) == 0)
{
Vertex vertex = new Vertex();
vertex.Position = face.Center;
vertex.Normal = normal;
vertex.Binormal = binormal;
vertex.TexCoord = cuv;
face.Vertices.Add(vertex);
numVertices++;
}
for (i = 0; i < numVertices; i++)
{
Vertex vertex = face.Vertices[i];
vertex.Binormal = binormal;
vertex.Normal = normal;
face.Vertices[i] = vertex;
}
if ((face.Mask & FaceMask.Hollow) != 0)
{
if ((face.Mask & FaceMask.Top) != 0)
{
// HOLLOW TOP
int pt1 = 0;
int pt2 = numVertices - 1;
i = 0;
while (pt2 - pt1 > 1)
{
if (use_tri_1a2(profile, pt1, pt2))
{
face.Indices.Add((ushort)pt1);
face.Indices.Add((ushort)(pt1 + 1));
face.Indices.Add((ushort)pt2);
pt1++;
}
else
{
face.Indices.Add((ushort)pt1);
face.Indices.Add((ushort)(pt2 - 1));
face.Indices.Add((ushort)pt2);
pt2--;
}
}
}
else
{
// HOLLOW BOTTOM
int pt1 = 0;
int pt2 = numVertices - 1;
i = 0;
while (pt2 - pt1 > 1)
{
// Flipped backfacing from top
if (use_tri_1a2(profile, pt1, pt2))
{
face.Indices.Add((ushort)pt1);
face.Indices.Add((ushort)pt2);
face.Indices.Add((ushort)(pt1 + 1));
pt1++;
}
else
{
face.Indices.Add((ushort)pt1);
face.Indices.Add((ushort)pt2);
face.Indices.Add((ushort)(pt2 - 1));
pt2--;
}
}
}
}
else
{
// SOLID OPEN TOP
// SOLID CLOSED TOP
// SOLID OPEN BOTTOM
// SOLID CLOSED BOTTOM
// Not hollow, generate the triangle fan.
// This is a tri-fan, so we reuse the same first point for all triangles
for (i = 0; i < numVertices - 2; i++)
{
face.Indices.Add((ushort)(numVertices - 1));
face.Indices.Add((ushort)i);
face.Indices.Add((ushort)(i + 1));
}
}
}
private OMVR.FacetedMesh GenerateIRendererMesh(int numPrimFaces, OMV.Primitive prim,
List<PrimMesher.ViewerFace> viewerFaces)
{
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List<OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List<OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List<OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List<OMVR.PathPoint>();
Dictionary<OMV.Vector3, int> vertexAccount = new Dictionary<OMV.Vector3, int>();
OMV.Vector3 pos;
int indx;
OMVR.Vertex vert;
for (int ii=0; ii<numPrimFaces; ii++) {
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List<OMVR.Vertex>();
oface.Indices = new List<ushort>();
if (prim.Textures == null) {
oface.TextureFace = null;
}
else {
oface.TextureFace = prim.Textures.GetFace((uint)ii);
}
int faceVertices = 0;
vertexAccount.Clear();
foreach (PrimMesher.ViewerFace vface in viewerFaces) {
if (vface.primFaceNumber == ii) {
faceVertices++;
pos = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
if (vertexAccount.ContainsKey(pos)) {
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else {
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv1.U, vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
vert.Normal.Normalize();
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
if (vertexAccount.ContainsKey(pos)) {
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else {
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv2.U, vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
vert.Normal.Normalize();
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
pos = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
if (vertexAccount.ContainsKey(pos)) {
oface.Indices.Add((ushort)vertexAccount[pos]);
}
else {
vert = new OMVR.Vertex();
vert.Position = pos;
vert.TexCoord = new OMV.Vector2(vface.uv3.U, vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
vert.Normal.Normalize();
oface.Vertices.Add(vert);
indx = oface.Vertices.Count - 1;
vertexAccount.Add(pos, indx);
oface.Indices.Add((ushort)indx);
}
}
}
if (faceVertices > 0) {
oface.TextureFace = null;
if (prim.Textures != null) {
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null) {
oface.TextureFace = prim.Textures.DefaultTexture;
}
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return omvrmesh;
}
private static void CreateUnCutCubeCap(ref Face face, List<Vertex> primVertices, Path path, Profile profile)
{
int maxS = profile.Positions.Count;
int maxT = path.Points.Count;
int gridSize = (profile.Positions.Count - 1) / 4;
int quadCount = gridSize * gridSize;
//int numVertices = (gridSize + 1) * (gridSize + 1);
//int numIndices = quadCount * 4;
int offset = 0;
if ((face.Mask & FaceMask.Top) != 0)
offset = (maxT - 1) * maxS;
else
offset = face.BeginS;
Vertex[] corners = new Vertex[4];
Vertex baseVert;
for (int t = 0; t < 4; t++)
{
corners[t].Position = primVertices[offset + (gridSize * t)].Position;
corners[t].TexCoord.X = profile.Positions[gridSize * t].X + 0.5f;
corners[t].TexCoord.Y = 0.5f - profile.Positions[gridSize * t].Y;
}
baseVert.Normal =
((corners[1].Position - corners[0].Position) %
(corners[2].Position - corners[1].Position));
baseVert.Normal = Vector3.Normalize(baseVert.Normal);
if ((face.Mask & FaceMask.Top) != 0)
{
baseVert.Normal *= -1f;
}
else
{
// Swap the UVs on the U(X) axis for top face
Vector2 swap;
swap = corners[0].TexCoord;
corners[0].TexCoord = corners[3].TexCoord;
corners[3].TexCoord = swap;
swap = corners[1].TexCoord;
corners[1].TexCoord = corners[2].TexCoord;
corners[2].TexCoord = swap;
}
baseVert.Binormal = CalcBinormalFromTriangle(
corners[0].Position, corners[0].TexCoord,
corners[1].Position, corners[1].TexCoord,
corners[2].Position, corners[2].TexCoord);
for (int t = 0; t < 4; t++)
{
corners[t].Binormal = baseVert.Binormal;
corners[t].Normal = baseVert.Normal;
}
int vtop = face.Vertices.Count;
for (int gx = 0; gx < gridSize + 1; gx++)
{
for (int gy = 0; gy < gridSize + 1; gy++)
{
Vertex newVert = new Vertex();
LerpPlanarVertex(
corners[0],
corners[1],
corners[3],
ref newVert,
(float)gx / (float)gridSize,
(float)gy / (float)gridSize);
face.Vertices.Add(newVert);
if (gx == 0 && gy == 0)
face.MinExtent = face.MaxExtent = newVert.Position;
else
UpdateMinMax(ref face, newVert.Position);
}
}
face.Center = (face.MinExtent + face.MaxExtent) * 0.5f;
int[] idxs = new int[] { 0, 1, gridSize + 2, gridSize + 2, gridSize + 1, 0 };
for (int gx = 0; gx < gridSize; gx++)
{
for (int gy = 0; gy < gridSize; gy++)
{
if ((face.Mask & FaceMask.Top) != 0)
{
for (int i = 5; i >= 0; i--)
face.Indices.Add((ushort)(vtop + (gy * (gridSize + 1)) + gx + idxs[i]));
}
else
{
for (int i = 0; i < 6; i++)
face.Indices.Add((ushort)(vtop + (gy * (gridSize + 1)) + gx + idxs[i]));
}
}
}
}
/// <summary>
/// Create a sculpty faceted mesh. The actual scuplt texture is fetched and passed to this
/// routine since all the context for finding teh texture is elsewhere.
/// </summary>
/// <returns>The faceted mesh or null if can't do it</returns>
public OMVR.FacetedMesh GenerateFacetedSculptMesh(Primitive prim, Bitmap scupltTexture, DetailLevel lod)
{
LibreMetaverse.PrimMesher.SculptMesh.SculptType smSculptType;
switch (prim.Sculpt.Type)
{
case SculptType.Cylinder:
smSculptType = LibreMetaverse.PrimMesher.SculptMesh.SculptType.cylinder;
break;
case SculptType.Plane:
smSculptType = LibreMetaverse.PrimMesher.SculptMesh.SculptType.plane;
break;
case SculptType.Sphere:
smSculptType = LibreMetaverse.PrimMesher.SculptMesh.SculptType.sphere;
break;
case SculptType.Torus:
smSculptType = LibreMetaverse.PrimMesher.SculptMesh.SculptType.torus;
break;
default:
smSculptType = LibreMetaverse.PrimMesher.SculptMesh.SculptType.plane;
break;
}
// The lod for sculpties is the resolution of the texture passed.
// The first guess is 1:1 then lower resolutions after that
// int mesherLod = (int)Math.Sqrt(scupltTexture.Width * scupltTexture.Height);
int mesherLod = 32; // number used in Idealist viewer
switch (lod)
{
case OMVR.DetailLevel.Highest:
break;
case OMVR.DetailLevel.High:
break;
case OMVR.DetailLevel.Medium:
mesherLod /= 2;
break;
case OMVR.DetailLevel.Low:
mesherLod /= 4;
break;
}
LibreMetaverse.PrimMesher.SculptMesh newMesh =
new LibreMetaverse.PrimMesher.SculptMesh(scupltTexture, smSculptType, mesherLod, true, prim.Sculpt.Mirror, prim.Sculpt.Invert);
int numPrimFaces = 1; // a scuplty has only one face
// copy the vertex information into OMVR.IRendering structures
FacetedMesh omvrmesh = new OMVR.FacetedMesh
{
Faces = new List <OMVR.Face>(),
Prim = prim,
Profile = new OMVR.Profile
{
Faces = new List <OMVR.ProfileFace>(),
Positions = new List <OMV.Vector3>()
},
Path = new OMVR.Path {
Points = new List <OMVR.PathPoint>()
}
};
for (int ii = 0; ii < numPrimFaces; ii++)
{
Face oface = new OMVR.Face
{
Vertices = new List <OMVR.Vertex>(),
Indices = new List <ushort>(),
TextureFace = prim.Textures.GetFace((uint)ii)
};
int faceVertices = newMesh.coords.Count;
for (int j = 0; j < faceVertices; j++)
{
var vert = new OMVR.Vertex
{
Position = new Vector3(newMesh.coords[j].X, newMesh.coords[j].Y, newMesh.coords[j].Z),
Normal = new Vector3(newMesh.normals[j].X, newMesh.normals[j].Y, newMesh.normals[j].Z),
TexCoord = new Vector2(newMesh.uvs[j].U, newMesh.uvs[j].V)
};
oface.Vertices.Add(vert);
}
for (int j = 0; j < newMesh.faces.Count; j++)
{
oface.Indices.Add((ushort)newMesh.faces[j].v1);
oface.Indices.Add((ushort)newMesh.faces[j].v2);
oface.Indices.Add((ushort)newMesh.faces[j].v3);
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii] ?? prim.Textures.DefaultTexture;
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return(omvrmesh);
}
private List<Vertex> GenerateVertices()
{
List<Vertex> vertices = new List<Vertex>(8);
Vertex v = new Vertex();
// FIXME: Implement these
v.Normal = Vector3.Zero;
v.TexCoord = Vector2.Zero;
v.Position = new Vector3(0.5f, 0.5f, -0.5f);
vertices.Add(v);
v.Position = new Vector3(0.5f, -0.5f, -0.5f);
vertices.Add(v);
v.Position = new Vector3(-0.5f, -0.5f, -0.5f);
vertices.Add(v);
v.Position = new Vector3(-0.5f, 0.5f, -0.5f);
vertices.Add(v);
v.Position = new Vector3(0.5f, 0.5f, 0.5f);
vertices.Add(v);
v.Position = new Vector3(0.5f, -0.5f, 0.5f);
vertices.Add(v);
v.Position = new Vector3(-0.5f, -0.5f, 0.5f);
vertices.Add(v);
v.Position = new Vector3(-0.5f, 0.5f, 0.5f);
vertices.Add(v);
return vertices;
}
/// <summary>
/// Create a sculpty faceted mesh. The actual scuplt texture is fetched and passed to this
/// routine since all the context for finding teh texture is elsewhere.
/// </summary>
/// <returns>The faceted mesh or null if can't do it</returns>
public OMVR.FacetedMesh GenerateFacetedSculptMesh(OMV.Primitive prim, System.Drawing.Bitmap scupltTexture, OMVR.DetailLevel lod)
{
byte sculptType = (byte)prim.Sculpt.Type;
bool mirror = ((sculptType & 128) != 0);
bool invert = ((sculptType & 64) != 0);
// mirror = false; // TODO: libomv doesn't support these and letting them flop around causes problems
// invert = false;
OMV.SculptType omSculptType = (OMV.SculptType)(sculptType & 0x07);
PrimMesher.SculptMesh.SculptType smSculptType;
switch (omSculptType)
{
case OpenMetaverse.SculptType.Cylinder:
smSculptType = PrimMesher.SculptMesh.SculptType.cylinder;
break;
case OpenMetaverse.SculptType.Plane:
smSculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
case OpenMetaverse.SculptType.Sphere:
smSculptType = PrimMesher.SculptMesh.SculptType.sphere;
break;
case OpenMetaverse.SculptType.Torus:
smSculptType = PrimMesher.SculptMesh.SculptType.torus;
break;
default:
smSculptType = PrimMesher.SculptMesh.SculptType.plane;
break;
}
// The lod for sculpties is the resolution of the texture passed.
// The first guess is 1:1 then lower resolutions after that
// int mesherLod = (int)Math.Sqrt(scupltTexture.Width * scupltTexture.Height);
int mesherLod = 32; // number used in Idealist viewer
switch (lod)
{
case OMVR.DetailLevel.Highest:
break;
case OMVR.DetailLevel.High:
break;
case OMVR.DetailLevel.Medium:
mesherLod /= 2;
break;
case OMVR.DetailLevel.Low:
mesherLod /= 4;
break;
}
PrimMesher.SculptMesh newMesh =
new PrimMesher.SculptMesh(scupltTexture, smSculptType, mesherLod, true, mirror, invert);
int numPrimFaces = 1; // a scuplty has only one face
// copy the vertex information into OMVR.IRendering structures
OMVR.FacetedMesh omvrmesh = new OMVR.FacetedMesh();
omvrmesh.Faces = new List <OMVR.Face>();
omvrmesh.Prim = prim;
omvrmesh.Profile = new OMVR.Profile();
omvrmesh.Profile.Faces = new List <OMVR.ProfileFace>();
omvrmesh.Profile.Positions = new List <OMV.Vector3>();
omvrmesh.Path = new OMVR.Path();
omvrmesh.Path.Points = new List <OMVR.PathPoint>();
for (int ii = 0; ii < numPrimFaces; ii++)
{
OMVR.Face oface = new OMVR.Face();
oface.Vertices = new List <OMVR.Vertex>();
oface.Indices = new List <ushort>();
oface.TextureFace = prim.Textures.GetFace((uint)ii);
int faceVertices = 0;
foreach (PrimMesher.ViewerFace vface in newMesh.viewerFaces)
{
OMVR.Vertex vert = new OMVR.Vertex();
vert.Position = new OMV.Vector3(vface.v1.X, vface.v1.Y, vface.v1.Z);
vert.TexCoord = new OMV.Vector2(vface.uv1.U, 1.0f - vface.uv1.V);
vert.Normal = new OMV.Vector3(vface.n1.X, vface.n1.Y, vface.n1.Z);
oface.Vertices.Add(vert);
vert = new OMVR.Vertex();
vert.Position = new OMV.Vector3(vface.v2.X, vface.v2.Y, vface.v2.Z);
vert.TexCoord = new OMV.Vector2(vface.uv2.U, 1.0f - vface.uv2.V);
vert.Normal = new OMV.Vector3(vface.n2.X, vface.n2.Y, vface.n2.Z);
oface.Vertices.Add(vert);
vert = new OMVR.Vertex();
vert.Position = new OMV.Vector3(vface.v3.X, vface.v3.Y, vface.v3.Z);
vert.TexCoord = new OMV.Vector2(vface.uv3.U, 1.0f - vface.uv3.V);
vert.Normal = new OMV.Vector3(vface.n3.X, vface.n3.Y, vface.n3.Z);
oface.Vertices.Add(vert);
oface.Indices.Add((ushort)(faceVertices * 3 + 0));
oface.Indices.Add((ushort)(faceVertices * 3 + 1));
oface.Indices.Add((ushort)(faceVertices * 3 + 2));
faceVertices++;
}
if (faceVertices > 0)
{
oface.TextureFace = prim.Textures.FaceTextures[ii];
if (oface.TextureFace == null)
{
oface.TextureFace = prim.Textures.DefaultTexture;
}
oface.ID = ii;
omvrmesh.Faces.Add(oface);
}
}
return(omvrmesh);
}
