/// <summary>
/// frees up the source mesh data to minimize memory - call this method after calling get*Locked() functions
/// </summary>
public void releaseSourceMeshData()
{
triangles = null;
vertices = null;
primMesh = null;
}
// from IdealistViewer.PrimMesherG.cs
public PrimMesh ConstructionDataToPrimMesh(Primitive.ConstructionData primData, LevelOfDetail detail, float detailMult)
{
this.sides = 4;
this.hollowsides = 4;
float profileBegin = primData.ProfileBegin;
float profileEnd = primData.ProfileEnd;
bool isSphere = false;
if ((ProfileCurve)(primData.profileCurve & 0x07) == ProfileCurve.Circle)
{
switch (detail)
{
case LevelOfDetail.Low:
sides = 6;
break;
case LevelOfDetail.Medium:
sides = 12;
break;
default:
sides = 24;
break;
}
}
else if ((ProfileCurve)(primData.profileCurve & 0x07) == ProfileCurve.EqualTriangle)
sides = 3;
else if ((ProfileCurve)(primData.profileCurve & 0x07) == ProfileCurve.HalfCircle)
{ // half circle, prim is a sphere
isSphere = true;
switch (detail)
{
case LevelOfDetail.Low:
sides = 6;
break;
case LevelOfDetail.Medium:
sides = 12;
break;
default:
sides = 24;
break;
}
profileBegin = 0.5f * profileBegin + 0.5f;
profileEnd = 0.5f * profileEnd + 0.5f;
}
if ((HoleType)primData.ProfileHole == HoleType.Same)
hollowsides = sides;
else if ((HoleType)primData.ProfileHole == HoleType.Circle)
{
switch (detail)
{
case LevelOfDetail.Low:
hollowsides = 6;
break;
case LevelOfDetail.Medium:
hollowsides = 12;
break;
default:
hollowsides = 24;
break;
}
}
else if ((HoleType)primData.ProfileHole == HoleType.Triangle)
hollowsides = 3;
// if (UseExtremeDetail)
{
sides = (int)(sides * detailMult);
hollowsides = (int)(hollowsides * detailMult);
}
PrimMesh primMesh = new PrimMesh(sides, profileBegin, profileEnd, (float)primData.ProfileHollow, hollowsides);
primMesh.viewerMode = UseViewerMode;
primMesh.holeSizeX = primData.PathScaleX;
primMesh.holeSizeY = primData.PathScaleY;
primMesh.pathCutBegin = primData.PathBegin;
primMesh.pathCutEnd = primData.PathEnd;
primMesh.topShearX = primData.PathShearX;
primMesh.topShearY = primData.PathShearY;
primMesh.radius = primData.PathRadiusOffset;
primMesh.revolutions = primData.PathRevolutions;
primMesh.skew = primData.PathSkew;
switch (detail)
{
case LevelOfDetail.Low:
primMesh.stepsPerRevolution = 6;
break;
case LevelOfDetail.Medium:
primMesh.stepsPerRevolution = 12;
break;
default:
primMesh.stepsPerRevolution = 24;
break;
}
//if (UseExtremeDetail)
{
primMesh.stepsPerRevolution = (int)(primMesh.stepsPerRevolution * detailMult);
}
if (primData.PathCurve == PathCurve.Line)
{
primMesh.taperX = 1.0f - primData.PathScaleX;
primMesh.taperY = 1.0f - primData.PathScaleY;
primMesh.twistBegin = (int)(180 * primData.PathTwistBegin);
primMesh.twistEnd = (int)(180 * primData.PathTwist);
primMesh.ExtrudeLinear();
}
else
{
primMesh.taperX = primData.PathTaperX;
primMesh.taperY = primData.PathTaperY;
primMesh.twistBegin = (int)(360 * primData.PathTwistBegin);
primMesh.twistEnd = (int)(360 * primData.PathTwist);
primMesh.ExtrudeCircular();
}
if (UseViewerMode)
{
int numViewerFaces = primMesh.viewerFaces.Count;
for (uint i = 0; i < numViewerFaces; i++)
{
ViewerFace vf = primMesh.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;
}
}
}
return primMesh;
}
/// <summary>
/// Duplicates a PrimMesh object. All object properties are copied by value, including lists.
/// </summary>
/// <returns></returns>
public PrimMesh Copy()
{
PrimMesh copy = new PrimMesh(this.sides, this.profileStart, this.profileEnd, this.hollow, this.hollowSides);
copy.twistBegin = this.twistBegin;
copy.twistEnd = this.twistEnd;
copy.topShearX = this.topShearX;
copy.topShearY = this.topShearY;
copy.pathCutBegin = this.pathCutBegin;
copy.pathCutEnd = this.pathCutEnd;
copy.dimpleBegin = this.dimpleBegin;
copy.dimpleEnd = this.dimpleEnd;
copy.skew = this.skew;
copy.holeSizeX = this.holeSizeX;
copy.holeSizeY = this.holeSizeY;
copy.taperX = this.taperX;
copy.taperY = this.taperY;
copy.radius = this.radius;
copy.revolutions = this.revolutions;
copy.stepsPerRevolution = this.stepsPerRevolution;
copy.calcVertexNormals = this.calcVertexNormals;
copy.normalsProcessed = this.normalsProcessed;
copy.viewerMode = this.viewerMode;
copy.numPrimFaces = this.numPrimFaces;
copy.errorMessage = this.errorMessage;
copy.coords = new List<Coord>(this.coords);
copy.faces = new List<Face>(this.faces);
copy.viewerFaces = new List<ViewerFace>(this.viewerFaces);
copy.normals = new List<Coord>(this.normals);
return copy;
}
/// <summary>
/// Convert a PrimMesher.PrimMesh to OpenSim.Region.Physics.Meshing.Mesh
/// </summary>
/// <param name="meshIn"></param>
/// <returns></returns>
public static Mesh PrimMeshToMesh(PrimMesh meshIn)
{
Mesh mesh = new Mesh();
#if COLLIDER_ODE
mesh.PBS = meshIn.PBS
#endif
mesh.primMesh = meshIn;
{
List<Coord> coords = meshIn.coords;
List<Face> faces = meshIn.faces;
int numCoords = coords.Count;
int numFaces = faces.Count;
for (int i = 0; i < numCoords; i++)
{
Coord c = coords[i];
mesh.vertices.Add(new Vertex(c.X, c.Y, c.Z));
}
List<Vertex> vertices = mesh.vertices;
for (int i = 0; i < numFaces; i++)
{
Face f = faces[i];
mesh.triangles.Add(new Triangle(vertices[f.v1], vertices[f.v2], vertices[f.v3]));
}
}
return mesh;
}
public VertexIndexer(PrimMesh primMesh)
{
int numPrimFaces = primMesh.numPrimFaces;
int maxPrimFaceNumber = 0;
foreach (ViewerFace vf in primMesh.viewerFaces)
if (maxPrimFaceNumber < vf.primFaceNumber)
maxPrimFaceNumber = vf.primFaceNumber;
if (numPrimFaces < maxPrimFaceNumber + 1)
numPrimFaces = maxPrimFaceNumber + 1;
int[] numViewerVerts = new int[numPrimFaces];
int[] numVertsPerPrimFace = new int[numPrimFaces];
for (int i = 0; i < numPrimFaces; i++)
{
numViewerVerts[i] = 0;
numVertsPerPrimFace[i] = 0;
}
foreach (ViewerFace vf in primMesh.viewerFaces)
numVertsPerPrimFace[vf.primFaceNumber] += 3;
this.viewerVertices = new List<List<ViewerVertex>>(numPrimFaces);
this.viewerPolygons = new List<List<ViewerPolygon>>(numPrimFaces);
this.viewerVertIndices = new int[numPrimFaces][];
// create index lists
for (int primFaceNumber = 0; primFaceNumber < numPrimFaces; primFaceNumber++)
{
//set all indices to -1 to indicate an invalid index
int[] vertIndices = new int[primMesh.coords.Count];
for (int i = 0; i < primMesh.coords.Count; i++)
vertIndices[i] = -1;
viewerVertIndices[primFaceNumber] = vertIndices;
viewerVertices.Add(new List<ViewerVertex>(numVertsPerPrimFace[primFaceNumber]));
viewerPolygons.Add(new List<ViewerPolygon>());
}
// populate the index lists
foreach (ViewerFace vf in primMesh.viewerFaces)
{
int v1, v2, v3;
int[] vertIndices = viewerVertIndices[vf.primFaceNumber];
List<ViewerVertex> viewerVerts = viewerVertices[vf.primFaceNumber];
// add the vertices
if (vertIndices[vf.coordIndex1] < 0)
{
viewerVerts.Add(new ViewerVertex(vf.v1, vf.n1, vf.uv1));
v1 = viewerVerts.Count - 1;
vertIndices[vf.coordIndex1] = v1;
}
else v1 = vertIndices[vf.coordIndex1];
if (vertIndices[vf.coordIndex2] < 0)
{
viewerVerts.Add(new ViewerVertex(vf.v2, vf.n2, vf.uv2));
v2 = viewerVerts.Count - 1;
vertIndices[vf.coordIndex2] = v2;
}
else v2 = vertIndices[vf.coordIndex2];
if (vertIndices[vf.coordIndex3] < 0)
{
viewerVerts.Add(new ViewerVertex(vf.v3, vf.n3, vf.uv3));
v3 = viewerVerts.Count - 1;
vertIndices[vf.coordIndex3] = v3;
}
else v3 = vertIndices[vf.coordIndex3];
viewerPolygons[vf.primFaceNumber].Add(new ViewerPolygon(v1, v2, v3));
}
}
