/// <summary>
/// ** Experimental ** May disappear from future versions ** not recommeneded for use in applications
/// Construct a sculpt mesh from a 2D array of floats
/// </summary>
/// <param name="zMap"></param>
/// <param name="xBegin"></param>
/// <param name="xEnd"></param>
/// <param name="yBegin"></param>
/// <param name="yEnd"></param>
/// <param name="viewerMode"></param>
public SculptMesh(float[,] zMap, float xBegin, float xEnd, float yBegin, float yEnd, bool viewerMode)
{
float xStep, yStep;
float uStep, vStep;
int numYElements = zMap.GetLength(0);
int numXElements = zMap.GetLength(1);
try
{
xStep = (xEnd - xBegin) / (float)(numXElements - 1);
yStep = (yEnd - yBegin) / (float)(numYElements - 1);
uStep = 1.0f / (numXElements - 1);
vStep = 1.0f / (numYElements - 1);
}
catch (DivideByZeroException)
{
return;
}
coords = new List<Coord>();
faces = new List<Face>();
normals = new List<Coord>();
uvs = new List<UVCoord>();
viewerFaces = new List<ViewerFace>();
int p1, p2, p3, p4;
int x, y;
int xStart = 0, yStart = 0;
for (y = yStart; y < numYElements; y++)
{
int rowOffset = y * numXElements;
for (x = xStart; x < numXElements; x++)
{
/*
* p1-----p2
* | \ f2 |
* | \ |
* | f1 \|
* p3-----p4
*/
p4 = rowOffset + x;
p3 = p4 - 1;
p2 = p4 - numXElements;
p1 = p3 - numXElements;
Coord c = new Coord(xBegin + x * xStep, yBegin + y * yStep, zMap[y, x]);
this.coords.Add(c);
if (viewerMode)
{
this.normals.Add(new Coord());
this.uvs.Add(new UVCoord(uStep * x, 1.0f - vStep * y));
}
if (y > 0 && x > 0)
{
Face f1, f2;
if (viewerMode)
{
f1 = new Face(p1, p4, p3, p1, p4, p3);
f1.uv1 = p1;
f1.uv2 = p4;
f1.uv3 = p3;
f2 = new Face(p1, p2, p4, p1, p2, p4);
f2.uv1 = p1;
f2.uv2 = p2;
f2.uv3 = p4;
}
else
{
f1 = new Face(p1, p4, p3);
f2 = new Face(p1, p2, p4);
}
this.faces.Add(f1);
this.faces.Add(f2);
}
}
}
if (viewerMode)
calcVertexNormals(SculptType.plane, numXElements, numYElements);
}
void _SculptMesh(Bitmap sculptBitmap, SculptType sculptType, int lod, bool viewerMode, bool mirror, bool invert)
{
coords = new List<Coord>();
faces = new List<Face>();
normals = new List<Coord>();
uvs = new List<UVCoord>();
sculptType = (SculptType)(((int)sculptType) & 0x07);
if (mirror)
if (sculptType == SculptType.plane)
invert = !invert;
float sourceScaleFactor = (float)(lod) / (float)Math.Sqrt(sculptBitmap.Width * sculptBitmap.Height);
int scale = (int)(1.0f / sourceScaleFactor);
if (scale < 1) scale = 1;
List<List<Coord>> rows = bitmap2Coords(sculptBitmap, scale, mirror);
viewerFaces = new List<ViewerFace>();
int width = sculptBitmap.Width / scale;
// int height = sculptBitmap.Height / scale;
int p1, p2, p3, p4;
int imageX, imageY;
if (sculptType != SculptType.plane)
{
for (int rowNdx = 0; rowNdx < rows.Count; rowNdx++)
rows[rowNdx].Add(rows[rowNdx][0]);
}
Coord topPole = rows[0][width / 2];
Coord bottomPole = rows[rows.Count - 1][width / 2];
if (sculptType == SculptType.sphere)
{
int count = rows[0].Count;
List<Coord> topPoleRow = new List<Coord>(count);
List<Coord> bottomPoleRow = new List<Coord>(count);
for (int i = 0; i < count; i++)
{
topPoleRow.Add(topPole);
bottomPoleRow.Add(bottomPole);
}
rows.Insert(0, topPoleRow);
rows.Add(bottomPoleRow);
}
else if (sculptType == SculptType.torus)
rows.Add(rows[0]);
int coordsDown = rows.Count;
int coordsAcross = rows[0].Count;
float widthUnit = 1.0f / (coordsAcross - 1);
float heightUnit = 1.0f / (coordsDown - 1);
for (imageY = 0; imageY < coordsDown; imageY++)
{
int rowOffset = imageY * coordsAcross;
for (imageX = 0; imageX < coordsAcross; imageX++)
{
/*
* p1-----p2
* | \ f2 |
* | \ |
* | f1 \|
* p3-----p4
*/
p4 = rowOffset + imageX;
p3 = p4 - 1;
p2 = p4 - coordsAcross;
p1 = p3 - coordsAcross;
this.coords.Add(rows[imageY][imageX]);
if (viewerMode)
{
this.normals.Add(new Coord());
this.uvs.Add(new UVCoord(widthUnit * imageX, heightUnit * imageY));
}
if (imageY > 0 && imageX > 0)
{
Face f1, f2;
if (viewerMode)
{
if (invert)
{
f1 = new Face(p1, p4, p3, p1, p4, p3);
f1.uv1 = p1;
f1.uv2 = p4;
f1.uv3 = p3;
f2 = new Face(p1, p2, p4, p1, p2, p4);
f2.uv1 = p1;
f2.uv2 = p2;
f2.uv3 = p4;
}
else
{
f1 = new Face(p1, p3, p4, p1, p3, p4);
f1.uv1 = p1;
f1.uv2 = p3;
f1.uv3 = p4;
f2 = new Face(p1, p4, p2, p1, p4, p2);
f2.uv1 = p1;
f2.uv2 = p4;
f2.uv3 = p2;
}
}
else
{
if (invert)
{
f1 = new Face(p1, p4, p3);
f2 = new Face(p1, p2, p4);
}
else
{
f1 = new Face(p1, p3, p4);
f2 = new Face(p1, p4, p2);
}
}
this.faces.Add(f1);
this.faces.Add(f2);
}
}
}
if (viewerMode)
calcVertexNormals(sculptType, coordsAcross, coordsDown);
}
internal Profile(int sides, float profileStart, float profileEnd, float hollow, int hollowSides, bool createFaces, bool calcVertexNormals)
{
this.calcVertexNormals = calcVertexNormals;
this.coords = new List<Coord>();
this.faces = new List<Face>();
this.vertexNormals = new List<Coord>();
this.us = new List<float>();
this.faceUVs = new List<UVCoord>();
this.faceNumbers = new List<int>();
Coord center = new Coord(0.0f, 0.0f, 0.0f);
bool hasCenter = false;
List<Coord> hollowCoords = new List<Coord>();
List<Coord> hollowNormals = new List<Coord>();
List<float> hollowUs = new List<float>();
if (calcVertexNormals)
{
this.outerCoordIndices = new List<int>();
this.hollowCoordIndices = new List<int>();
this.cut1CoordIndices = new List<int>();
this.cut2CoordIndices = new List<int>();
}
bool hasHollow = (hollow > 0.0f);
bool hasProfileCut = (profileStart > 0.0f || profileEnd < 1.0f);
AngleList angles = new AngleList();
AngleList hollowAngles = new AngleList();
float xScale = 0.5f;
float yScale = 0.5f;
if (sides == 4) // corners of a square are sqrt(2) from center
{
xScale = 0.707f;
yScale = 0.707f;
}
float startAngle = profileStart * twoPi;
float stopAngle = profileEnd * twoPi;
try { angles.makeAngles(sides, startAngle, stopAngle); }
catch (Exception ex)
{
errorMessage = "makeAngles failed: Exception: " + ex.ToString()
+ "\nsides: " + sides.ToString() + " startAngle: " + startAngle.ToString() + " stopAngle: " + stopAngle.ToString();
return;
}
this.numOuterVerts = angles.angles.Count;
// flag to create as few triangles as possible for 3 or 4 side profile
//bool simpleFace = (sides < 5 && !(hasHollow || hasProfileCut));
bool simpleFace = (sides < 5 && !hasHollow && !hasProfileCut);
if (hasHollow)
{
if (sides == hollowSides)
hollowAngles = angles;
else
{
try { hollowAngles.makeAngles(hollowSides, startAngle, stopAngle); }
catch (Exception ex)
{
errorMessage = "makeAngles failed: Exception: " + ex.ToString()
+ "\nsides: " + sides.ToString() + " startAngle: " + startAngle.ToString() + " stopAngle: " + stopAngle.ToString();
return;
}
}
this.numHollowVerts = hollowAngles.angles.Count;
}
else if (!simpleFace)
{
this.coords.Add(center);
hasCenter = true;
if (this.calcVertexNormals)
this.vertexNormals.Add(new Coord(0.0f, 0.0f, 1.0f));
this.us.Add(0.0f);
}
float z = 0.0f;
Angle angle;
Coord newVert = new Coord();
if (hasHollow && hollowSides != sides)
{
int numHollowAngles = hollowAngles.angles.Count;
for (int i = 0; i < numHollowAngles; i++)
{
angle = hollowAngles.angles[i];
newVert.X = hollow * xScale * angle.X;
newVert.Y = hollow * yScale * angle.Y;
newVert.Z = z;
hollowCoords.Add(newVert);
if (this.calcVertexNormals)
{
if (hollowSides < 5)
hollowNormals.Add(hollowAngles.normals[i].Invert());
else
hollowNormals.Add(new Coord(-angle.X, -angle.Y, 0.0f));
hollowUs.Add(angle.angle * hollow);
}
}
}
int index = 0;
int numAngles = angles.angles.Count;
for (int i = 0; i < numAngles; i++)
{
//int iNext = i == numAngles ? i + 1 : 0;
angle = angles.angles[i];
newVert.X = angle.X * xScale;
newVert.Y = angle.Y * yScale;
newVert.Z = z;
this.coords.Add(newVert);
if (this.calcVertexNormals)
{
this.outerCoordIndices.Add(this.coords.Count - 1);
if (sides < 5)
{
this.vertexNormals.Add(angles.normals[i]);
float u = angle.angle;
this.us.Add(u);
}
else
{
this.vertexNormals.Add(new Coord(angle.X, angle.Y, 0.0f));
this.us.Add(angle.angle);
}
}
if (hasHollow)
{
if (hollowSides == sides)
{
newVert.X *= hollow;
newVert.Y *= hollow;
newVert.Z = z;
hollowCoords.Add(newVert);
if (this.calcVertexNormals)
{
if (sides < 5)
{
hollowNormals.Add(angles.normals[i].Invert());
}
else
hollowNormals.Add(new Coord(-angle.X, -angle.Y, 0.0f));
hollowUs.Add(angle.angle * hollow);
}
}
}
else if (!simpleFace && createFaces && angle.angle > 0.0001f)
{
Face newFace = new Face();
newFace.v1 = 0;
newFace.v2 = index;
newFace.v3 = index + 1;
this.faces.Add(newFace);
}
index += 1;
}
if (hasHollow)
{
hollowCoords.Reverse();
if (this.calcVertexNormals)
{
hollowNormals.Reverse();
hollowUs.Reverse();
}
if (createFaces)
{
int numOuterVerts = this.coords.Count;
int numHollowVerts = hollowCoords.Count;
int numTotalVerts = numOuterVerts + numHollowVerts;
if (numOuterVerts == numHollowVerts)
{
Face newFace = new Face();
for (int coordIndex = 0; coordIndex < numOuterVerts - 1; coordIndex++)
{
newFace.v1 = coordIndex;
newFace.v2 = coordIndex + 1;
newFace.v3 = numTotalVerts - coordIndex - 1;
this.faces.Add(newFace);
newFace.v1 = coordIndex + 1;
newFace.v2 = numTotalVerts - coordIndex - 2;
newFace.v3 = numTotalVerts - coordIndex - 1;
this.faces.Add(newFace);
}
}
else
{
if (numOuterVerts < numHollowVerts)
{
Face newFace = new Face();
int j = 0; // j is the index for outer vertices
int maxJ = numOuterVerts - 1;
for (int i = 0; i < numHollowVerts; i++) // i is the index for inner vertices
{
if (j < maxJ)
if (angles.angles[j + 1].angle - hollowAngles.angles[i].angle < hollowAngles.angles[i].angle - angles.angles[j].angle + 0.000001f)
{
newFace.v1 = numTotalVerts - i - 1;
newFace.v2 = j;
newFace.v3 = j + 1;
this.faces.Add(newFace);
j += 1;
}
newFace.v1 = j;
newFace.v2 = numTotalVerts - i - 2;
newFace.v3 = numTotalVerts - i - 1;
this.faces.Add(newFace);
}
}
else // numHollowVerts < numOuterVerts
{
Face newFace = new Face();
int j = 0; // j is the index for inner vertices
int maxJ = numHollowVerts - 1;
for (int i = 0; i < numOuterVerts; i++)
{
if (j < maxJ)
if (hollowAngles.angles[j + 1].angle - angles.angles[i].angle < angles.angles[i].angle - hollowAngles.angles[j].angle + 0.000001f)
{
newFace.v1 = i;
newFace.v2 = numTotalVerts - j - 2;
newFace.v3 = numTotalVerts - j - 1;
this.faces.Add(newFace);
j += 1;
}
newFace.v1 = numTotalVerts - j - 1;
newFace.v2 = i;
newFace.v3 = i + 1;
this.faces.Add(newFace);
}
}
}
}
if (calcVertexNormals)
{
foreach (Coord hc in hollowCoords)
{
this.coords.Add(hc);
hollowCoordIndices.Add(this.coords.Count - 1);
}
}
else
this.coords.AddRange(hollowCoords);
if (this.calcVertexNormals)
{
this.vertexNormals.AddRange(hollowNormals);
this.us.AddRange(hollowUs);
}
}
if (simpleFace && createFaces)
{
if (sides == 3)
this.faces.Add(new Face(0, 1, 2));
else if (sides == 4)
{
this.faces.Add(new Face(0, 1, 2));
this.faces.Add(new Face(0, 2, 3));
}
}
if (calcVertexNormals && hasProfileCut)
{
if (hasHollow)
{
int lastOuterVertIndex = this.numOuterVerts - 1;
this.cut1CoordIndices.Add(0);
this.cut1CoordIndices.Add(this.coords.Count - 1);
this.cut2CoordIndices.Add(lastOuterVertIndex + 1);
this.cut2CoordIndices.Add(lastOuterVertIndex);
this.cutNormal1.X = this.coords[0].Y - this.coords[this.coords.Count - 1].Y;
this.cutNormal1.Y = -(this.coords[0].X - this.coords[this.coords.Count - 1].X);
this.cutNormal2.X = this.coords[lastOuterVertIndex + 1].Y - this.coords[lastOuterVertIndex].Y;
this.cutNormal2.Y = -(this.coords[lastOuterVertIndex + 1].X - this.coords[lastOuterVertIndex].X);
}
else
{
this.cutNormal1.X = this.vertexNormals[1].Y;
this.cutNormal1.Y = -this.vertexNormals[1].X;
this.cutNormal2.X = -this.vertexNormals[this.vertexNormals.Count - 2].Y;
this.cutNormal2.Y = this.vertexNormals[this.vertexNormals.Count - 2].X;
}
this.cutNormal1.Normalize();
this.cutNormal2.Normalize();
}
this.MakeFaceUVs();
hollowCoords = null;
hollowNormals = null;
hollowUs = null;
if (calcVertexNormals)
{ // calculate prim face numbers
// face number order is top, outer, hollow, bottom, start cut, end cut
// I know it's ugly but so is the whole concept of prim face numbers
int faceNum = 1; // start with outer faces
int startVert = hasProfileCut && !hasHollow ? 1 : 0;
if (startVert > 0)
this.faceNumbers.Add(-1);
for (int i = 0; i < numOuterVerts - 1; i++)
this.faceNumbers.Add(sides < 5 ? faceNum++ : faceNum);
//if (!hasHollow && !hasProfileCut)
// this.bottomFaceNumber = faceNum++;
this.faceNumbers.Add(hasProfileCut ? -1 : faceNum++);
if (sides > 4 && (hasHollow || hasProfileCut))
faceNum++;
if (hasHollow)
{
for (int i = 0; i < numHollowVerts; i++)
this.faceNumbers.Add(faceNum);
faceNum++;
}
//if (hasProfileCut || hasHollow)
// this.bottomFaceNumber = faceNum++;
this.bottomFaceNumber = faceNum++;
if (hasHollow && hasProfileCut)
this.faceNumbers.Add(faceNum++);
for (int i = 0; i < this.faceNumbers.Count; i++)
if (this.faceNumbers[i] == -1)
this.faceNumbers[i] = faceNum++;
this.numPrimFaces = faceNum;
}
}
private Coord SurfaceNormal(Face face)
{
return SurfaceNormal(this.coords[face.v1], this.coords[face.v2], this.coords[face.v3]);
}
/// <summary>
/// Extrude a profile into a circular path prim mesh. Used for prim types torus, tube, and ring.
/// </summary>
public void ExtrudeCircular()
{
this.coords = new List<Coord>();
this.faces = new List<Face>();
if (this.viewerMode)
{
this.viewerFaces = new List<ViewerFace>();
this.calcVertexNormals = true;
}
if (this.calcVertexNormals)
this.normals = new List<Coord>();
int step = 0;
int steps = 24;
normalsProcessed = false;
float twistBegin = this.twistBegin / 360.0f * twoPi;
float twistEnd = this.twistEnd / 360.0f * twoPi;
float twistTotal = twistEnd - twistBegin;
// if the profile has a lot of twist, add more layers otherwise the layers may overlap
// and the resulting mesh may be quite inaccurate. This method is arbitrary and doesn't
// accurately match the viewer
float twistTotalAbs = Math.Abs(twistTotal);
if (twistTotalAbs > 0.01f)
{
if (twistTotalAbs > Math.PI * 1.5f)
steps *= 2;
if (twistTotalAbs > Math.PI * 3.0f)
steps *= 2;
}
float yPathScale = this.holeSizeY * 0.5f;
float pathLength = this.pathCutEnd - this.pathCutBegin;
float totalSkew = this.skew * 2.0f * pathLength;
float skewStart = this.pathCutBegin * 2.0f * this.skew - this.skew;
float xOffsetTopShearXFactor = this.topShearX * (0.25f + 0.5f * (0.5f - this.holeSizeY));
float yShearCompensation = 1.0f + Math.Abs(this.topShearY) * 0.25f;
// It's not quite clear what pushY (Y top shear) does, but subtracting it from the start and end
// angles appears to approximate it's effects on path cut. Likewise, adding it to the angle used
// to calculate the sine for generating the path radius appears to approximate it's effects there
// too, but there are some subtle differences in the radius which are noticeable as the prim size
// increases and it may affect megaprims quite a bit. The effect of the Y top shear parameter on
// the meshes generated with this technique appear nearly identical in shape to the same prims when
// displayed by the viewer.
float startAngle = (twoPi * this.pathCutBegin * this.revolutions) - this.topShearY * 0.9f;
float endAngle = (twoPi * this.pathCutEnd * this.revolutions) - this.topShearY * 0.9f;
float stepSize = twoPi / this.stepsPerRevolution;
step = (int)(startAngle / stepSize);
int firstStep = step;
float angle = startAngle;
float hollow = this.hollow;
// sanity checks
float initialProfileRot = 0.0f;
if (this.sides == 3)
{
initialProfileRot = (float)Math.PI;
if (this.hollowSides == 4)
{
if (hollow > 0.7f)
hollow = 0.7f;
hollow *= 0.707f;
}
else hollow *= 0.5f;
}
else if (this.sides == 4)
{
initialProfileRot = 0.25f * (float)Math.PI;
if (this.hollowSides != 4)
hollow *= 0.707f;
}
else if (this.sides > 4)
{
initialProfileRot = (float)Math.PI;
if (this.hollowSides == 4)
{
if (hollow > 0.7f)
hollow = 0.7f;
hollow /= 0.7f;
}
}
bool needEndFaces = false;
if (this.pathCutBegin != 0.0f || this.pathCutEnd != 1.0f)
needEndFaces = true;
else if (this.taperX != 0.0f || this.taperY != 0.0f)
needEndFaces = true;
else if (this.skew != 0.0f)
needEndFaces = true;
else if (twistTotal != 0.0f)
needEndFaces = true;
else if (this.radius != 0.0f)
needEndFaces = true;
Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, needEndFaces, calcVertexNormals);
this.errorMessage = profile.errorMessage;
this.numPrimFaces = profile.numPrimFaces;
int cut1Vert = -1;
int cut2Vert = -1;
if (hasProfileCut)
{
cut1Vert = hasHollow ? profile.coords.Count - 1 : 0;
cut2Vert = hasHollow ? profile.numOuterVerts - 1 : profile.numOuterVerts;
}
if (initialProfileRot != 0.0f)
{
profile.AddRot(new Quat(new Coord(0.0f, 0.0f, 1.0f), initialProfileRot));
if (viewerMode)
profile.MakeFaceUVs();
}
Coord lastCutNormal1 = new Coord();
Coord lastCutNormal2 = new Coord();
float lastV = 1.0f;
bool done = false;
while (!done) // loop through the length of the path and add the layers
{
bool isEndLayer = false;
if (angle <= startAngle + .01f || angle >= endAngle - .01f)
isEndLayer = true;
Profile newLayer = profile.Copy();
float xProfileScale = (1.0f - Math.Abs(this.skew)) * this.holeSizeX;
float yProfileScale = this.holeSizeY;
float percentOfPath = angle / (twoPi * this.revolutions);
float percentOfAngles = (angle - startAngle) / (endAngle - startAngle);
if (this.taperX > 0.01f)
xProfileScale *= 1.0f - percentOfPath * this.taperX;
else if (this.taperX < -0.01f)
xProfileScale *= 1.0f + (1.0f - percentOfPath) * this.taperX;
if (this.taperY > 0.01f)
yProfileScale *= 1.0f - percentOfPath * this.taperY;
else if (this.taperY < -0.01f)
yProfileScale *= 1.0f + (1.0f - percentOfPath) * this.taperY;
if (xProfileScale != 1.0f || yProfileScale != 1.0f)
newLayer.Scale(xProfileScale, yProfileScale);
float radiusScale = 1.0f;
if (this.radius > 0.001f)
radiusScale = 1.0f - this.radius * percentOfPath;
else if (this.radius < 0.001f)
radiusScale = 1.0f + this.radius * (1.0f - percentOfPath);
float twist = twistBegin + twistTotal * percentOfPath;
float xOffset = 0.5f * (skewStart + totalSkew * percentOfAngles);
xOffset += (float)Math.Sin(angle) * xOffsetTopShearXFactor;
float yOffset = yShearCompensation * (float)Math.Cos(angle) * (0.5f - yPathScale) * radiusScale;
float zOffset = (float)Math.Sin(angle + this.topShearY) * (0.5f - yPathScale) * radiusScale;
// next apply twist rotation to the profile layer
if (twistTotal != 0.0f || twistBegin != 0.0f)
newLayer.AddRot(new Quat(new Coord(0.0f, 0.0f, 1.0f), twist));
// now orient the rotation of the profile layer relative to it's position on the path
// adding taperY to the angle used to generate the quat appears to approximate the viewer
newLayer.AddRot(new Quat(new Coord(1.0f, 0.0f, 0.0f), angle + this.topShearY));
newLayer.AddPos(xOffset, yOffset, zOffset);
if (isEndLayer && angle <= startAngle + .01f)
{
newLayer.FlipNormals();
// add the top faces to the viewerFaces list here
if (this.viewerMode && needEndFaces)
{
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace();
newViewerFace.primFaceNumber = 0;
foreach (Face face in newLayer.faces)
{
newViewerFace.v1 = newLayer.coords[face.v1];
newViewerFace.v2 = newLayer.coords[face.v2];
newViewerFace.v3 = newLayer.coords[face.v3];
newViewerFace.coordIndex1 = face.v1;
newViewerFace.coordIndex2 = face.v2;
newViewerFace.coordIndex3 = face.v3;
newViewerFace.n1 = faceNormal;
newViewerFace.n2 = faceNormal;
newViewerFace.n3 = faceNormal;
newViewerFace.uv1 = newLayer.faceUVs[face.v1];
newViewerFace.uv2 = newLayer.faceUVs[face.v2];
newViewerFace.uv3 = newLayer.faceUVs[face.v3];
this.viewerFaces.Add(newViewerFace);
}
}
}
// append the layer and fill in the sides
int coordsLen = this.coords.Count;
newLayer.AddValue2FaceVertexIndices(coordsLen);
this.coords.AddRange(newLayer.coords);
if (this.calcVertexNormals)
{
newLayer.AddValue2FaceNormalIndices(this.normals.Count);
this.normals.AddRange(newLayer.vertexNormals);
}
if (isEndLayer)
this.faces.AddRange(newLayer.faces);
// fill faces between layers
int numVerts = newLayer.coords.Count;
Face newFace = new Face();
if (step > firstStep)
{
int startVert = coordsLen + 1;
int endVert = this.coords.Count;
if (sides < 5 || this.hasProfileCut || hollow > 0.0f)
startVert--;
for (int i = startVert; i < endVert; i++)
{
int iNext = i + 1;
if (i == endVert - 1)
iNext = startVert;
int whichVert = i - startVert;
newFace.v1 = i;
newFace.v2 = i - numVerts;
newFace.v3 = iNext - numVerts;
this.faces.Add(newFace);
newFace.v2 = iNext - numVerts;
newFace.v3 = iNext;
this.faces.Add(newFace);
if (this.viewerMode)
{
int primFaceNumber = profile.faceNumbers[whichVert];
if (!needEndFaces)
primFaceNumber -= 1;
// add the side faces to the list of viewerFaces here
ViewerFace newViewerFace1 = new ViewerFace(primFaceNumber);
ViewerFace newViewerFace2 = new ViewerFace(primFaceNumber);
float u1 = newLayer.us[whichVert];
float u2 = 1.0f;
if (whichVert < newLayer.us.Count - 1)
u2 = newLayer.us[whichVert + 1];
if (whichVert == cut1Vert || whichVert == cut2Vert)
{
u1 = 0.0f;
u2 = 1.0f;
}
else if (sides < 5)
{ // boxes and prisms have one texture face per side of the prim, so the U values have to be scaled
// to reflect the entire texture width
u1 *= sides;
u2 *= sides;
u2 -= (int)u1;
u1 -= (int)u1;
if (u2 < 0.1f)
u2 = 1.0f;
//newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = whichVert + 1;
}
newViewerFace1.uv1.U = u1;
newViewerFace1.uv2.U = u1;
newViewerFace1.uv3.U = u2;
newViewerFace1.uv1.V = 1.0f - percentOfPath;
newViewerFace1.uv2.V = lastV;
newViewerFace1.uv3.V = lastV;
newViewerFace2.uv1.U = u1;
newViewerFace2.uv2.U = u2;
newViewerFace2.uv3.U = u2;
newViewerFace2.uv1.V = 1.0f - percentOfPath;
newViewerFace2.uv2.V = lastV;
newViewerFace2.uv3.V = 1.0f - percentOfPath;
newViewerFace1.v1 = this.coords[i];
newViewerFace1.v2 = this.coords[i - numVerts];
newViewerFace1.v3 = this.coords[iNext - numVerts];
newViewerFace2.v1 = this.coords[i];
newViewerFace2.v2 = this.coords[iNext - numVerts];
newViewerFace2.v3 = this.coords[iNext];
newViewerFace1.coordIndex1 = i;
newViewerFace1.coordIndex2 = i - numVerts;
newViewerFace1.coordIndex3 = iNext - numVerts;
newViewerFace2.coordIndex1 = i;
newViewerFace2.coordIndex2 = iNext - numVerts;
newViewerFace2.coordIndex3 = iNext;
// profile cut faces
if (whichVert == cut1Vert)
{
newViewerFace1.n1 = newLayer.cutNormal1;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal1;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal1;
newViewerFace2.n2 = lastCutNormal1;
}
else if (whichVert == cut2Vert)
{
newViewerFace1.n1 = newLayer.cutNormal2;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal2;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal2;
newViewerFace2.n2 = lastCutNormal2;
}
else // periphery faces
{
if (sides < 5 && whichVert < newLayer.numOuterVerts)
{
newViewerFace1.n1 = this.normals[i];
newViewerFace1.n2 = this.normals[i - numVerts];
newViewerFace1.n3 = this.normals[i - numVerts];
newViewerFace2.n1 = this.normals[i];
newViewerFace2.n2 = this.normals[i - numVerts];
newViewerFace2.n3 = this.normals[i];
}
else if (hollowSides < 5 && whichVert >= newLayer.numOuterVerts)
{
newViewerFace1.n1 = this.normals[iNext];
newViewerFace1.n2 = this.normals[iNext - numVerts];
newViewerFace1.n3 = this.normals[iNext - numVerts];
newViewerFace2.n1 = this.normals[iNext];
newViewerFace2.n2 = this.normals[iNext - numVerts];
newViewerFace2.n3 = this.normals[iNext];
}
else
{
newViewerFace1.n1 = this.normals[i];
newViewerFace1.n2 = this.normals[i - numVerts];
newViewerFace1.n3 = this.normals[iNext - numVerts];
newViewerFace2.n1 = this.normals[i];
newViewerFace2.n2 = this.normals[iNext - numVerts];
newViewerFace2.n3 = this.normals[iNext];
}
}
//newViewerFace1.primFaceNumber = newViewerFace2.primFaceNumber = newLayer.faceNumbers[whichVert];
this.viewerFaces.Add(newViewerFace1);
this.viewerFaces.Add(newViewerFace2);
}
}
}
lastCutNormal1 = newLayer.cutNormal1;
lastCutNormal2 = newLayer.cutNormal2;
lastV = 1.0f - percentOfPath;
// calculate terms for next iteration
// calculate the angle for the next iteration of the loop
if (angle >= endAngle - 0.01)
done = true;
else
{
step += 1;
angle = stepSize * step;
if (angle > endAngle)
angle = endAngle;
}
if (done && viewerMode && needEndFaces)
{
// add the bottom faces to the viewerFaces list here
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace();
//newViewerFace.primFaceNumber = newLayer.bottomFaceNumber + 1;
newViewerFace.primFaceNumber = newLayer.bottomFaceNumber;
foreach (Face face in newLayer.faces)
{
newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen];
newViewerFace.v2 = newLayer.coords[face.v2 - coordsLen];
newViewerFace.v3 = newLayer.coords[face.v3 - coordsLen];
newViewerFace.coordIndex1 = face.v1 - coordsLen;
newViewerFace.coordIndex2 = face.v2 - coordsLen;
newViewerFace.coordIndex3 = face.v3 - coordsLen;
newViewerFace.n1 = faceNormal;
newViewerFace.n2 = faceNormal;
newViewerFace.n3 = faceNormal;
newViewerFace.uv1 = newLayer.faceUVs[face.v1 - coordsLen];
newViewerFace.uv2 = newLayer.faceUVs[face.v2 - coordsLen];
newViewerFace.uv3 = newLayer.faceUVs[face.v3 - coordsLen];
this.viewerFaces.Add(newViewerFace);
}
}
}
}
/// <summary>
/// Extrudes a profile along a straight line path. Used for prim types box, cylinder, and prism.
/// </summary>
public void ExtrudeLinear()
{
this.coords = new List<Coord>();
this.faces = new List<Face>();
if (this.viewerMode)
{
this.viewerFaces = new List<ViewerFace>();
this.calcVertexNormals = true;
}
if (this.calcVertexNormals)
this.normals = new List<Coord>();
int step = 0;
int steps = 1;
float length = this.pathCutEnd - this.pathCutBegin;
normalsProcessed = false;
if (this.viewerMode && this.sides == 3)
{
// prisms don't taper well so add some vertical resolution
// other prims may benefit from this but just do prisms for now
if (Math.Abs(this.taperX) > 0.01 || Math.Abs(this.taperY) > 0.01)
steps = (int)(steps * 4.5 * length);
}
float twistBegin = this.twistBegin / 360.0f * twoPi;
float twistEnd = this.twistEnd / 360.0f * twoPi;
float twistTotal = twistEnd - twistBegin;
float twistTotalAbs = Math.Abs(twistTotal);
if (twistTotalAbs > 0.01f)
steps += (int)(twistTotalAbs * 3.66); // dahlia's magic number
float start = -0.5f;
float stepSize = length / (float)steps;
float percentOfPathMultiplier = stepSize;
float xProfileScale = 1.0f;
float yProfileScale = 1.0f;
float xOffset = 0.0f;
float yOffset = 0.0f;
float zOffset = start;
float xOffsetStepIncrement = this.topShearX / steps;
float yOffsetStepIncrement = this.topShearY / steps;
float percentOfPath = this.pathCutBegin;
zOffset += percentOfPath;
float hollow = this.hollow;
// sanity checks
float initialProfileRot = 0.0f;
if (this.sides == 3)
{
if (this.hollowSides == 4)
{
if (hollow > 0.7f)
hollow = 0.7f;
hollow *= 0.707f;
}
else hollow *= 0.5f;
}
else if (this.sides == 4)
{
initialProfileRot = 1.25f * (float)Math.PI;
if (this.hollowSides != 4)
hollow *= 0.707f;
}
else if (this.sides == 24 && this.hollowSides == 4)
hollow *= 1.414f;
Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, true, calcVertexNormals);
this.errorMessage = profile.errorMessage;
this.numPrimFaces = profile.numPrimFaces;
int cut1Vert = -1;
int cut2Vert = -1;
if (hasProfileCut)
{
cut1Vert = hasHollow ? profile.coords.Count - 1 : 0;
cut2Vert = hasHollow ? profile.numOuterVerts - 1 : profile.numOuterVerts;
}
if (initialProfileRot != 0.0f)
{
profile.AddRot(new Quat(new Coord(0.0f, 0.0f, 1.0f), initialProfileRot));
if (viewerMode)
profile.MakeFaceUVs();
}
Coord lastCutNormal1 = new Coord();
Coord lastCutNormal2 = new Coord();
float lastV = 1.0f;
bool done = false;
while (!done)
{
Profile newLayer = profile.Copy();
if (this.taperX == 0.0f)
xProfileScale = 1.0f;
else if (this.taperX > 0.0f)
xProfileScale = 1.0f - percentOfPath * this.taperX;
else xProfileScale = 1.0f + (1.0f - percentOfPath) * this.taperX;
if (this.taperY == 0.0f)
yProfileScale = 1.0f;
else if (this.taperY > 0.0f)
yProfileScale = 1.0f - percentOfPath * this.taperY;
else yProfileScale = 1.0f + (1.0f - percentOfPath) * this.taperY;
if (xProfileScale != 1.0f || yProfileScale != 1.0f)
newLayer.Scale(xProfileScale, yProfileScale);
float twist = twistBegin + twistTotal * percentOfPath;
if (twist != 0.0f)
newLayer.AddRot(new Quat(new Coord(0.0f, 0.0f, 1.0f), twist));
newLayer.AddPos(xOffset, yOffset, zOffset);
if (step == 0)
{
newLayer.FlipNormals();
// add the top faces to the viewerFaces list here
if (this.viewerMode)
{
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace(profile.bottomFaceNumber);
int numFaces = newLayer.faces.Count;
List<Face> faces = newLayer.faces;
for (int i = 0; i < numFaces; i++)
{
Face face = faces[i];
newViewerFace.v1 = newLayer.coords[face.v1];
newViewerFace.v2 = newLayer.coords[face.v2];
newViewerFace.v3 = newLayer.coords[face.v3];
newViewerFace.coordIndex1 = face.v1;
newViewerFace.coordIndex2 = face.v2;
newViewerFace.coordIndex3 = face.v3;
newViewerFace.n1 = faceNormal;
newViewerFace.n2 = faceNormal;
newViewerFace.n3 = faceNormal;
newViewerFace.uv1 = newLayer.faceUVs[face.v1];
newViewerFace.uv2 = newLayer.faceUVs[face.v2];
newViewerFace.uv3 = newLayer.faceUVs[face.v3];
this.viewerFaces.Add(newViewerFace);
}
}
}
// append this layer
int coordsLen = this.coords.Count;
int lastCoordsLen = coordsLen;
newLayer.AddValue2FaceVertexIndices(coordsLen);
this.coords.AddRange(newLayer.coords);
if (this.calcVertexNormals)
{
newLayer.AddValue2FaceNormalIndices(this.normals.Count);
this.normals.AddRange(newLayer.vertexNormals);
}
if (percentOfPath < this.pathCutBegin + 0.01f || percentOfPath > this.pathCutEnd - 0.01f)
this.faces.AddRange(newLayer.faces);
// fill faces between layers
int numVerts = newLayer.coords.Count;
Face newFace = new Face();
if (step > 0)
{
int startVert = coordsLen + 1;
int endVert = this.coords.Count;
if (sides < 5 || this.hasProfileCut || hollow > 0.0f)
startVert--;
for (int i = startVert; i < endVert; i++)
{
int iNext = i + 1;
if (i == endVert - 1)
iNext = startVert;
int whichVert = i - startVert;
//int whichVert2 = i - lastCoordsLen;
newFace.v1 = i;
newFace.v2 = i - numVerts;
newFace.v3 = iNext - numVerts;
this.faces.Add(newFace);
newFace.v2 = iNext - numVerts;
newFace.v3 = iNext;
this.faces.Add(newFace);
if (this.viewerMode)
{
// add the side faces to the list of viewerFaces here
//int primFaceNum = 1;
//if (whichVert >= sides)
// primFaceNum = 2;
int primFaceNum = profile.faceNumbers[whichVert];
ViewerFace newViewerFace1 = new ViewerFace(primFaceNum);
ViewerFace newViewerFace2 = new ViewerFace(primFaceNum);
float u1 = newLayer.us[whichVert];
float u2 = 1.0f;
if (whichVert < newLayer.us.Count - 1)
u2 = newLayer.us[whichVert + 1];
if (whichVert == cut1Vert || whichVert == cut2Vert)
{
u1 = 0.0f;
u2 = 1.0f;
}
else if (sides < 5)
{ // boxes and prisms have one texture face per side of the prim, so the U values have to be scaled
// to reflect the entire texture width
u1 *= sides;
u2 *= sides;
u2 -= (int)u1;
u1 -= (int)u1;
if (u2 < 0.1f)
u2 = 1.0f;
//newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = whichVert + 1;
}
newViewerFace1.uv1.U = u1;
newViewerFace1.uv2.U = u1;
newViewerFace1.uv3.U = u2;
newViewerFace1.uv1.V = 1.0f - percentOfPath;
newViewerFace1.uv2.V = lastV;
newViewerFace1.uv3.V = lastV;
newViewerFace2.uv1.U = u1;
newViewerFace2.uv2.U = u2;
newViewerFace2.uv3.U = u2;
newViewerFace2.uv1.V = 1.0f - percentOfPath;
newViewerFace2.uv2.V = lastV;
newViewerFace2.uv3.V = 1.0f - percentOfPath;
newViewerFace1.v1 = this.coords[i];
newViewerFace1.v2 = this.coords[i - numVerts];
newViewerFace1.v3 = this.coords[iNext - numVerts];
newViewerFace2.v1 = this.coords[i];
newViewerFace2.v2 = this.coords[iNext - numVerts];
newViewerFace2.v3 = this.coords[iNext];
newViewerFace1.coordIndex1 = i;
newViewerFace1.coordIndex2 = i - numVerts;
newViewerFace1.coordIndex3 = iNext - numVerts;
newViewerFace2.coordIndex1 = i;
newViewerFace2.coordIndex2 = iNext - numVerts;
newViewerFace2.coordIndex3 = iNext;
// profile cut faces
if (whichVert == cut1Vert)
{
newViewerFace1.n1 = newLayer.cutNormal1;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal1;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal1;
newViewerFace2.n2 = lastCutNormal1;
}
else if (whichVert == cut2Vert)
{
newViewerFace1.n1 = newLayer.cutNormal2;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal2;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal2;
newViewerFace2.n2 = lastCutNormal2;
}
else // outer and hollow faces
{
if ((sides < 5 && whichVert < newLayer.numOuterVerts) || (hollowSides < 5 && whichVert >= newLayer.numOuterVerts))
{
newViewerFace1.CalcSurfaceNormal();
newViewerFace2.CalcSurfaceNormal();
}
else
{
newViewerFace1.n1 = this.normals[i];
newViewerFace1.n2 = this.normals[i - numVerts];
newViewerFace1.n3 = this.normals[iNext - numVerts];
newViewerFace2.n1 = this.normals[i];
newViewerFace2.n2 = this.normals[iNext - numVerts];
newViewerFace2.n3 = this.normals[iNext];
}
}
//newViewerFace2.primFaceNumber = newViewerFace1.primFaceNumber = newLayer.faceNumbers[whichVert];
this.viewerFaces.Add(newViewerFace1);
this.viewerFaces.Add(newViewerFace2);
}
}
}
lastCutNormal1 = newLayer.cutNormal1;
lastCutNormal2 = newLayer.cutNormal2;
lastV = 1.0f - percentOfPath;
// calc the step for the next iteration of the loop
if (step < steps)
{
step += 1;
percentOfPath += percentOfPathMultiplier;
xOffset += xOffsetStepIncrement;
yOffset += yOffsetStepIncrement;
zOffset += stepSize;
if (percentOfPath > this.pathCutEnd)
done = true;
}
else done = true;
if (done && viewerMode)
{
// add the top faces to the viewerFaces list here
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace();
newViewerFace.primFaceNumber = 0;
int numFaces = newLayer.faces.Count;
List<Face> faces = newLayer.faces;
for (int i = 0; i < numFaces; i++)
{
Face face = faces[i];
newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen];
newViewerFace.v2 = newLayer.coords[face.v2 - coordsLen];
newViewerFace.v3 = newLayer.coords[face.v3 - coordsLen];
newViewerFace.coordIndex1 = face.v1 - coordsLen;
newViewerFace.coordIndex2 = face.v2 - coordsLen;
newViewerFace.coordIndex3 = face.v3 - coordsLen;
newViewerFace.n1 = faceNormal;
newViewerFace.n2 = faceNormal;
newViewerFace.n3 = faceNormal;
newViewerFace.uv1 = newLayer.faceUVs[face.v1 - coordsLen];
newViewerFace.uv2 = newLayer.faceUVs[face.v2 - coordsLen];
newViewerFace.uv3 = newLayer.faceUVs[face.v3 - coordsLen];
this.viewerFaces.Add(newViewerFace);
}
}
}
}
/// <summary>
/// Extrudes a profile along a straight line path. Used for prim types box, cylinder, and prism.
/// </summary>
public void Extrude(PathType pathType)
{
this.coords = new List<Coord>();
this.faces = new List<Face>();
if (this.viewerMode)
{
this.viewerFaces = new List<ViewerFace>();
this.calcVertexNormals = true;
}
if (this.calcVertexNormals)
this.normals = new List<Coord>();
//int step = 0;
int steps = 1;
float length = this.pathCutEnd - this.pathCutBegin;
normalsProcessed = false;
if (this.viewerMode && this.sides == 3)
{
// prisms don't taper well so add some vertical resolution
// other prims may benefit from this but just do prisms for now
if (Math.Abs(this.taperX) > 0.01 || Math.Abs(this.taperY) > 0.01)
steps = (int)(steps * 4.5 * length);
}
float twistBegin = this.twistBegin / 360.0f * twoPi;
float twistEnd = this.twistEnd / 360.0f * twoPi;
float twistTotal = twistEnd - twistBegin;
float twistTotalAbs = Math.Abs(twistTotal);
if (twistTotalAbs > 0.01f)
steps += (int)(twistTotalAbs * 3.66); // dahlia's magic number
//float start = -0.5f;
//float stepSize = length / (float)steps;
//float percentOfPathMultiplier = stepSize;
//float xProfileScale = 1.0f;
//float yProfileScale = 1.0f;
//float xOffset = 0.0f;
//float yOffset = 0.0f;
//float zOffset = start;
//float xOffsetStepIncrement = this.topShearX / steps;
//float yOffsetStepIncrement = this.topShearY / steps;
//float percentOfPath = this.pathCutBegin;
//zOffset += percentOfPath;
float hollow = this.hollow;
// sanity checks
float initialProfileRot = 0.0f;
if (pathType == PathType.Circular)
{
if (this.sides == 3)
{
initialProfileRot = (float)Math.PI;
if (this.hollowSides == 4)
{
if (hollow > 0.7f)
hollow = 0.7f;
hollow *= 0.707f;
}
else hollow *= 0.5f;
}
else if (this.sides == 4)
{
initialProfileRot = 0.25f * (float)Math.PI;
if (this.hollowSides != 4)
hollow *= 0.707f;
}
else if (this.sides > 4)
{
initialProfileRot = (float)Math.PI;
if (this.hollowSides == 4)
{
if (hollow > 0.7f)
hollow = 0.7f;
hollow /= 0.7f;
}
}
}
else
{
if (this.sides == 3)
{
if (this.hollowSides == 4)
{
if (hollow > 0.7f)
hollow = 0.7f;
hollow *= 0.707f;
}
else hollow *= 0.5f;
}
else if (this.sides == 4)
{
initialProfileRot = 1.25f * (float)Math.PI;
if (this.hollowSides != 4)
hollow *= 0.707f;
}
else if (this.sides == 24 && this.hollowSides == 4)
hollow *= 1.414f;
}
Profile profile = new Profile(this.sides, this.profileStart, this.profileEnd, hollow, this.hollowSides, true, calcVertexNormals);
this.errorMessage = profile.errorMessage;
this.numPrimFaces = profile.numPrimFaces;
int cut1Vert = -1;
int cut2Vert = -1;
if (hasProfileCut)
{
cut1Vert = hasHollow ? profile.coords.Count - 1 : 0;
cut2Vert = hasHollow ? profile.numOuterVerts - 1 : profile.numOuterVerts;
}
if (initialProfileRot != 0.0f)
{
profile.AddRot(new Quat(new Coord(0.0f, 0.0f, 1.0f), initialProfileRot));
if (viewerMode)
profile.MakeFaceUVs();
}
Coord lastCutNormal1 = new Coord();
Coord lastCutNormal2 = new Coord();
float lastV = 1.0f;
Path path = new Path();
path.twistBegin = twistBegin;
path.twistEnd = twistEnd;
path.topShearX = topShearX;
path.topShearY = topShearY;
path.pathCutBegin = pathCutBegin;
path.pathCutEnd = pathCutEnd;
path.dimpleBegin = dimpleBegin;
path.dimpleEnd = dimpleEnd;
path.skew = skew;
path.holeSizeX = holeSizeX;
path.holeSizeY = holeSizeY;
path.taperX = taperX;
path.taperY = taperY;
path.radius = radius;
path.revolutions = revolutions;
path.stepsPerRevolution = stepsPerRevolution;
path.Create(pathType, steps);
/*
public int twistBegin = 0;
public int twistEnd = 0;
public float topShearX = 0.0f;
public float topShearY = 0.0f;
public float pathCutBegin = 0.0f;
public float pathCutEnd = 1.0f;
public float dimpleBegin = 0.0f;
public float dimpleEnd = 1.0f;
public float skew = 0.0f;
public float holeSizeX = 1.0f; // called pathScaleX in pbs
public float holeSizeY = 0.25f;
public float taperX = 0.0f;
public float taperY = 0.0f;
public float radius = 0.0f;
public float revolutions = 1.0f;
public int stepsPerRevolution = 24;
*/
bool needEndFaces = false;
if (pathType == PathType.Circular)
{
needEndFaces = false;
if (this.pathCutBegin != 0.0f || this.pathCutEnd != 1.0f)
needEndFaces = true;
else if (this.taperX != 0.0f || this.taperY != 0.0f)
needEndFaces = true;
else if (this.skew != 0.0f)
needEndFaces = true;
else if (twistTotal != 0.0f)
needEndFaces = true;
else if (this.radius != 0.0f)
needEndFaces = true;
}
else needEndFaces = true;
for (int nodeIndex = 0; nodeIndex < path.pathNodes.Count; nodeIndex++)
{
PathNode node = path.pathNodes[nodeIndex];
Profile newLayer = profile.Copy();
newLayer.Scale(node.xScale, node.yScale);
newLayer.AddRot(node.rotation);
newLayer.AddPos(node.position);
if (needEndFaces && nodeIndex == 0)
{
newLayer.FlipNormals();
// add the top faces to the viewerFaces list here
if (this.viewerMode)
{
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace(profile.bottomFaceNumber);
int numFaces = newLayer.faces.Count;
List<Face> faces = newLayer.faces;
for (int i = 0; i < numFaces; i++)
{
Face face = faces[i];
newViewerFace.v1 = newLayer.coords[face.v1];
newViewerFace.v2 = newLayer.coords[face.v2];
newViewerFace.v3 = newLayer.coords[face.v3];
newViewerFace.coordIndex1 = face.v1;
newViewerFace.coordIndex2 = face.v2;
newViewerFace.coordIndex3 = face.v3;
newViewerFace.n1 = faceNormal;
newViewerFace.n2 = faceNormal;
newViewerFace.n3 = faceNormal;
newViewerFace.uv1 = newLayer.faceUVs[face.v1];
newViewerFace.uv2 = newLayer.faceUVs[face.v2];
newViewerFace.uv3 = newLayer.faceUVs[face.v3];
this.viewerFaces.Add(newViewerFace);
}
}
} // if (nodeIndex == 0)
// append this layer
int coordsLen = this.coords.Count;
int lastCoordsLen = coordsLen;
newLayer.AddValue2FaceVertexIndices(coordsLen);
this.coords.AddRange(newLayer.coords);
if (this.calcVertexNormals)
{
newLayer.AddValue2FaceNormalIndices(this.normals.Count);
this.normals.AddRange(newLayer.vertexNormals);
}
if (node.percentOfPath < this.pathCutBegin + 0.01f || node.percentOfPath > this.pathCutEnd - 0.01f)
this.faces.AddRange(newLayer.faces);
// fill faces between layers
int numVerts = newLayer.coords.Count;
Face newFace = new Face();
//if (step > 0)
if (nodeIndex > 0)
{
int startVert = coordsLen + 1;
int endVert = this.coords.Count;
if (sides < 5 || this.hasProfileCut || hollow > 0.0f)
startVert--;
for (int i = startVert; i < endVert; i++)
{
int iNext = i + 1;
if (i == endVert - 1)
iNext = startVert;
int whichVert = i - startVert;
//int whichVert2 = i - lastCoordsLen;
newFace.v1 = i;
newFace.v2 = i - numVerts;
newFace.v3 = iNext - numVerts;
this.faces.Add(newFace);
newFace.v2 = iNext - numVerts;
newFace.v3 = iNext;
this.faces.Add(newFace);
if (this.viewerMode)
{
// add the side faces to the list of viewerFaces here
int primFaceNum = profile.faceNumbers[whichVert];
if (!needEndFaces)
primFaceNum -= 1;
ViewerFace newViewerFace1 = new ViewerFace(primFaceNum);
ViewerFace newViewerFace2 = new ViewerFace(primFaceNum);
float u1 = newLayer.us[whichVert];
float u2 = 1.0f;
if (whichVert < newLayer.us.Count - 1)
u2 = newLayer.us[whichVert + 1];
if (whichVert == cut1Vert || whichVert == cut2Vert)
{
u1 = 0.0f;
u2 = 1.0f;
}
else if (sides < 5)
{
if (whichVert < profile.numOuterVerts)
{ // boxes and prisms have one texture face per side of the prim, so the U values have to be scaled
// to reflect the entire texture width
u1 *= sides;
u2 *= sides;
u2 -= (int)u1;
u1 -= (int)u1;
if (u2 < 0.1f)
u2 = 1.0f;
}
else if (whichVert > profile.coords.Count - profile.numHollowVerts - 1)
{
u1 *= 2.0f;
u2 *= 2.0f;
}
}
newViewerFace1.uv1.U = u1;
newViewerFace1.uv2.U = u1;
newViewerFace1.uv3.U = u2;
newViewerFace1.uv1.V = 1.0f - node.percentOfPath;
newViewerFace1.uv2.V = lastV;
newViewerFace1.uv3.V = lastV;
newViewerFace2.uv1.U = u1;
newViewerFace2.uv2.U = u2;
newViewerFace2.uv3.U = u2;
newViewerFace2.uv1.V = 1.0f - node.percentOfPath;
newViewerFace2.uv2.V = lastV;
newViewerFace2.uv3.V = 1.0f - node.percentOfPath;
newViewerFace1.v1 = this.coords[i];
newViewerFace1.v2 = this.coords[i - numVerts];
newViewerFace1.v3 = this.coords[iNext - numVerts];
newViewerFace2.v1 = this.coords[i];
newViewerFace2.v2 = this.coords[iNext - numVerts];
newViewerFace2.v3 = this.coords[iNext];
newViewerFace1.coordIndex1 = i;
newViewerFace1.coordIndex2 = i - numVerts;
newViewerFace1.coordIndex3 = iNext - numVerts;
newViewerFace2.coordIndex1 = i;
newViewerFace2.coordIndex2 = iNext - numVerts;
newViewerFace2.coordIndex3 = iNext;
// profile cut faces
if (whichVert == cut1Vert)
{
newViewerFace1.n1 = newLayer.cutNormal1;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal1;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal1;
newViewerFace2.n2 = lastCutNormal1;
}
else if (whichVert == cut2Vert)
{
newViewerFace1.n1 = newLayer.cutNormal2;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal2;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal2;
newViewerFace2.n2 = lastCutNormal2;
}
else // outer and hollow faces
{
if ((sides < 5 && whichVert < newLayer.numOuterVerts) || (hollowSides < 5 && whichVert >= newLayer.numOuterVerts))
{ // looks terrible when path is twisted... need vertex normals here
newViewerFace1.CalcSurfaceNormal();
newViewerFace2.CalcSurfaceNormal();
}
else
{
newViewerFace1.n1 = this.normals[i];
newViewerFace1.n2 = this.normals[i - numVerts];
newViewerFace1.n3 = this.normals[iNext - numVerts];
newViewerFace2.n1 = this.normals[i];
newViewerFace2.n2 = this.normals[iNext - numVerts];
newViewerFace2.n3 = this.normals[iNext];
}
}
this.viewerFaces.Add(newViewerFace1);
this.viewerFaces.Add(newViewerFace2);
}
}
}
lastCutNormal1 = newLayer.cutNormal1;
lastCutNormal2 = newLayer.cutNormal2;
lastV = 1.0f - node.percentOfPath;
if (needEndFaces && nodeIndex == path.pathNodes.Count - 1 && viewerMode)
{
// add the top faces to the viewerFaces list here
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace();
newViewerFace.primFaceNumber = 0;
int numFaces = newLayer.faces.Count;
List<Face> faces = newLayer.faces;
for (int i = 0; i < numFaces; i++)
{
Face face = faces[i];
newViewerFace.v1 = newLayer.coords[face.v1 - coordsLen];
newViewerFace.v2 = newLayer.coords[face.v2 - coordsLen];
newViewerFace.v3 = newLayer.coords[face.v3 - coordsLen];
newViewerFace.coordIndex1 = face.v1 - coordsLen;
newViewerFace.coordIndex2 = face.v2 - coordsLen;
newViewerFace.coordIndex3 = face.v3 - coordsLen;
newViewerFace.n1 = faceNormal;
newViewerFace.n2 = faceNormal;
newViewerFace.n3 = faceNormal;
newViewerFace.uv1 = newLayer.faceUVs[face.v1 - coordsLen];
newViewerFace.uv2 = newLayer.faceUVs[face.v2 - coordsLen];
newViewerFace.uv3 = newLayer.faceUVs[face.v3 - coordsLen];
this.viewerFaces.Add(newViewerFace);
}
}
} // for (int nodeIndex = 0; nodeIndex < path.pathNodes.Count; nodeIndex++)
}