internal Profile(int sides, float profileStart, float profileEnd, float hollow, int hollowSides,
bool createFaces, bool calcVertexNormals)
{
this.calcVertexNormals = calcVertexNormals;
coords = new List<Coord> ();
faces = new List<Face> ();
vertexNormals = new List<Coord> ();
us = new List<float> ();
faceUVs = new List<UVCoord> ();
faceNumbers = new List<int> ();
Coord center = new Coord (0.0f, 0.0f, 0.0f);
List<Coord> hollowCoords = new List<Coord> ();
List<Coord> hollowNormals = new List<Coord> ();
List<float> hollowUs = new List<float> ();
if (calcVertexNormals)
{
outerCoordIndices = new List<int> ();
hollowCoordIndices = new List<int> ();
cut1CoordIndices = new List<int> ();
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 = 0.707107f;
yScale = 0.707107f;
}
float startAngle = profileStart * twoPi;
float stopAngle = profileEnd * twoPi;
try
{
angles.makeAngles (sides, startAngle, stopAngle);
} catch (Exception ex)
{
errorMessage = "makeAngles failed: Exception: " + ex +
"\nsides: " + sides + " startAngle: " + startAngle + " stopAngle: " + stopAngle;
return;
}
numOuterVerts = angles.angles.Count;
// flag to create as few triangles as possible for 3 or 4 side profile
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 +
"\nsides: " + sides + " startAngle: " + startAngle + " stopAngle: " + stopAngle;
return;
}
}
numHollowVerts = hollowAngles.angles.Count;
} else if (!simpleFace)
{
coords.Add (center);
if (this.calcVertexNormals)
vertexNormals.Add (new Coord (0.0f, 0.0f, 1.0f));
us.Add (0.0f);
}
const 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)
{
hollowNormals.Add (hollowSides < 5
? hollowAngles.normals [i].Invert ()
: new Coord (-angle.X, -angle.Y, 0.0f));
if (hollowSides == 4)
hollowUs.Add(angle.angle * hollow * 0.707107f);
else
hollowUs.Add(angle.angle * hollow);
}
}
}
int index = 0;
int numAngles = angles.angles.Count;
for (int i = 0; i < numAngles; i++)
{
angle = angles.angles [i];
newVert.X = angle.X * xScale;
newVert.Y = angle.Y * yScale;
newVert.Z = z;
coords.Add (newVert);
if (this.calcVertexNormals)
{
outerCoordIndices.Add (coords.Count - 1);
if (sides < 5)
{
vertexNormals.Add (angles.normals [i]);
float u = angle.angle;
us.Add (u);
} else
{
vertexNormals.Add (new Coord (angle.X, angle.Y, 0.0f));
us.Add (angle.angle);
}
}
if (hasHollow)
{
if (hollowSides == sides)
{
newVert.X *= hollow;
newVert.Y *= hollow;
newVert.Z = z;
hollowCoords.Add (newVert);
if (this.calcVertexNormals)
{
hollowNormals.Add (sides < 5
? angles.normals [i].Invert ()
: new Coord (-angle.X, -angle.Y, 0.0f));
hollowUs.Add (angle.angle * hollow); //20151106 - not used here??
}
}
} else if (!simpleFace && createFaces && angle.angle > 0.0001f)
{
Face newFace = new Face { v1 = 0, v2 = index, v3 = index + 1 };
faces.Add (newFace);
}
index += 1;
}
if (hasHollow)
{
hollowCoords.Reverse ();
if (this.calcVertexNormals)
{
hollowNormals.Reverse ();
hollowUs.Reverse ();
}
if (createFaces)
{
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;
faces.Add (newFace);
newFace.v1 = coordIndex + 1;
newFace.v2 = numTotalVerts - coordIndex - 2;
newFace.v3 = numTotalVerts - coordIndex - 1;
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;
faces.Add (newFace);
j += 1;
}
newFace.v1 = j;
newFace.v2 = numTotalVerts - i - 2;
newFace.v3 = numTotalVerts - i - 1;
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;
faces.Add (newFace);
j += 1;
}
newFace.v1 = numTotalVerts - j - 1;
newFace.v2 = i;
newFace.v3 = i + 1;
faces.Add (newFace);
}
}
}
}
if (calcVertexNormals)
{
foreach (Coord hc in hollowCoords)
{
coords.Add (hc);
hollowCoordIndices.Add (coords.Count - 1);
}
} else
coords.AddRange (hollowCoords);
if (this.calcVertexNormals)
{
vertexNormals.AddRange (hollowNormals);
us.AddRange (hollowUs);
}
}
if (simpleFace && createFaces)
{
if (sides == 3)
faces.Add (new Face (0, 1, 2));
else if (sides == 4)
{
faces.Add (new Face (0, 1, 2));
faces.Add (new Face (0, 2, 3));
}
}
if (calcVertexNormals && hasProfileCut)
{
int lastOuterVertIndex = numOuterVerts - 1;
if (hasHollow)
{
cut1CoordIndices.Add (0);
cut1CoordIndices.Add (coords.Count - 1);
cut2CoordIndices.Add (lastOuterVertIndex + 1);
cut2CoordIndices.Add (lastOuterVertIndex);
cutNormal1.X = coords [0].Y - coords [coords.Count - 1].Y;
cutNormal1.Y = -(coords [0].X - coords [coords.Count - 1].X);
cutNormal2.X = coords [lastOuterVertIndex + 1].Y - coords [lastOuterVertIndex].Y;
cutNormal2.Y = -(coords [lastOuterVertIndex + 1].X - coords [lastOuterVertIndex].X);
} else
{
cut1CoordIndices.Add (0);
cut1CoordIndices.Add (1);
cut2CoordIndices.Add (lastOuterVertIndex);
cut2CoordIndices.Add (0);
cutNormal1.X = vertexNormals [1].Y;
cutNormal1.Y = -vertexNormals [1].X;
cutNormal2.X = -vertexNormals [vertexNormals.Count - 2].Y;
cutNormal2.Y = vertexNormals [vertexNormals.Count - 2].X;
}
cutNormal1.Normalize ();
cutNormal2.Normalize ();
}
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
outerFaceNumber = faceNum;
int startVert = hasProfileCut && !hasHollow ? 1 : 0;
if (startVert > 0)
faceNumbers.Add (-1);
for (int i = 0; i < numOuterVerts - 1; i++)
faceNumbers.Add (sides < 5 && i <= sides ? faceNum++ : faceNum);
//if (!hasHollow && !hasProfileCut)
// this.bottomFaceNumber = faceNum++;
faceNumbers.Add (hasProfileCut ? -1 : faceNum++);
if (sides > 4 && (hasHollow || hasProfileCut))
faceNum++;
if (sides < 5 && (hasHollow || hasProfileCut) && numOuterVerts < sides)
faceNum++;
if (hasHollow)
{
for (int i = 0; i < numHollowVerts; i++)
faceNumbers.Add (faceNum);
hollowFaceNumber = faceNum++;
}
//if (hasProfileCut || hasHollow)
// this.bottomFaceNumber = faceNum++;
bottomFaceNumber = faceNum++;
if (hasHollow && hasProfileCut)
faceNumbers.Add (faceNum++);
for (int i = 0; i < faceNumbers.Count; i++)
if (faceNumbers [i] == -1)
faceNumbers [i] = faceNum++;
numPrimFaces = faceNum;
}
}
Coord SurfaceNormal(Face face)
{
return SurfaceNormal (coords [face.v1], coords [face.v2], coords [face.v3]);
}
/// <summary>
/// ** Experimental ** May disappear from future versions ** not recommended 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) / (numXElements - 1);
yStep = (yEnd - yBegin) / (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) { uv1 = p1, uv2 = p4, uv3 = p3 };
f2 = new Face (p1, p2, p4, p1, p2, p4) { uv1 = p1, uv2 = p2, 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);
}
/// <summary>
/// Extrudes a profile along a path.
/// </summary>
public void Extrude(PathType pathType)
{
bool needEndFaces = false;
coords = new List<Coord> ();
faces = new List<Face> ();
if (viewerMode)
{
viewerFaces = new List<ViewerFace> ();
calcVertexNormals = true;
}
if (calcVertexNormals)
normals = new List<Coord> ();
int steps = 1;
float length = pathCutEnd - pathCutBegin;
normalsProcessed = false;
if (viewerMode && 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 (taperX) > 0.01 || Math.Abs (taperY) > 0.01)
steps = (int)(steps * 4.5 * length);
}
if (sphereMode)
hasProfileCut = profileEnd - profileStart < 0.4999f;
else
hasProfileCut = profileEnd - profileStart < 0.9999f;
hasHollow = (hollow > 0.001f);
float twistBegin2 = twistBegin / 360.0f * twoPi;
float twistEnd2 = twistEnd / 360.0f * twoPi;
float twistTotal = twistEnd2 - twistBegin2;
float twistTotalAbs = Math.Abs (twistTotal);
if (twistTotalAbs > 0.01f)
steps += (int)(twistTotalAbs * 3.66); // dahlia's magic number
float hollow2 = hollow;
// sanity checks
float initialProfileRot = 0.0f;
if (pathType == PathType.Circular)
{
if (sides == 3)
{
initialProfileRot = (float)Math.PI;
if (hollowSides == 4)
{
if (hollow2 > 0.7f)
hollow2 = 0.7f;
hollow2 *= 0.707f;
} else
hollow2 *= 0.5f;
} else if (sides == 4)
{
initialProfileRot = 0.25f * (float)Math.PI;
if (hollowSides != 4)
hollow2 *= 0.707f;
} else if (sides > 4)
{
initialProfileRot = (float)Math.PI;
if (hollowSides == 4)
{
if (hollow2 > 0.7f)
hollow2 = 0.7f;
hollow2 /= 0.7f;
}
}
} else
{
if (sides == 3)
{
if (hollowSides == 4)
{
if (hollow2 > 0.7f)
hollow2 = 0.7f;
hollow2 *= 0.707f;
} else
hollow2 *= 0.5f;
} else if (sides == 4)
{
initialProfileRot = 1.25f * (float)Math.PI;
if (hollowSides != 4)
hollow2 *= 0.707f;
} else if (sides == 24 && hollowSides == 5)
hollow2 *= 1.414f;
}
Profile profile = new Profile (sides, profileStart, profileEnd, hollow2, hollowSides, true,
calcVertexNormals);
errorMessage = profile.errorMessage;
numPrimFaces = profile.numPrimFaces;
int cut1FaceNumber = profile.bottomFaceNumber + 1;
int cut2FaceNumber = cut1FaceNumber + 1;
if (!needEndFaces)
{
cut1FaceNumber -= 2;
cut2FaceNumber -= 2;
}
profileOuterFaceNumber = profile.outerFaceNumber;
if (pathType == PathType.Circular)
{
needEndFaces = false;
if (pathCutBegin != 0.0f || pathCutEnd != 1.0f)
needEndFaces = true;
else if (taperX != 0.0f || taperY != 0.0f)
needEndFaces = true;
else if (skew != 0.0f)
needEndFaces = true;
else if (twistTotal != 0.0f)
needEndFaces = true;
else if (radius != 0.0f)
needEndFaces = true;
}
else needEndFaces = true;
if (!needEndFaces)
profileOuterFaceNumber--;
if (hasHollow)
{
profileHollowFaceNumber = profile.hollowFaceNumber;
if (!needEndFaces)
profileHollowFaceNumber--;
}
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 thisV = 0.0f;
float lastV = 0.0f;
Path path = new Path {
twistBegin = twistBegin2, //20151106 - original was twistBegin
twistEnd = twistEnd2, // ditto for twistEnd
topShearX = topShearX,
topShearY = topShearY,
pathCutBegin = pathCutBegin,
pathCutEnd = pathCutEnd,
dimpleBegin = dimpleBegin,
dimpleEnd = dimpleEnd,
skew = skew,
holeSizeX = holeSizeX,
holeSizeY = holeSizeY,
taperX = taperX,
taperY = taperY,
radius = radius,
revolutions = revolutions,
stepsPerRevolution = stepsPerRevolution
};
path.Create (pathType, steps);
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 (viewerMode)
{
Coord faceNormal = newLayer.faceNormal;
ViewerFace newViewerFace = new ViewerFace (profile.bottomFaceNumber);
int numFaces = newLayer.faces.Count;
List<Face> faces2 = newLayer.faces;
for (int i = 0; i < numFaces; i++)
{
Face face = faces2 [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];
if (pathType == PathType.Linear)
{
newViewerFace.uv1.Flip();
newViewerFace.uv2.Flip();
newViewerFace.uv3.Flip();
}
viewerFaces.Add (newViewerFace);
}
}
} // if (nodeIndex == 0)
// append this layer
int coordsLen = coords.Count;
newLayer.AddValue2FaceVertexIndices (coordsLen);
coords.AddRange (newLayer.coords);
if (calcVertexNormals)
{
newLayer.AddValue2FaceNormalIndices (normals.Count);
normals.AddRange (newLayer.vertexNormals);
}
if (node.percentOfPath < pathCutBegin + 0.01f || node.percentOfPath > pathCutEnd - 0.01f)
faces.AddRange (newLayer.faces);
// fill faces between layers
int numVerts = newLayer.coords.Count;
thisV = 1.0f - node.percentOfPath;
if (nodeIndex > 0)
{
Face newFace1 = new Face ();
Face newFace2 = new Face ();
int startVert = coordsLen + 1;
int endVert = coords.Count;
if (sides < 5 || hasProfileCut || hasHollow)
startVert--;
for (int i = startVert; i < endVert; i++)
{
int iNext = i + 1;
if (i == endVert - 1)
iNext = startVert;
int whichVert = i - startVert;
newFace1.v1 = i;
newFace1.v2 = i - numVerts;
newFace1.v3 = iNext;
newFace1.n1 = newFace1.v1;
newFace1.n2 = newFace1.v2;
newFace1.n3 = newFace1.v3;
faces.Add(newFace1);
newFace2.v1 = iNext;
newFace2.v2 = i - numVerts;
newFace2.v3 = iNext - numVerts;
newFace2.n1 = newFace2.v1;
newFace2.n2 = newFace2.v2;
newFace2.n3 = newFace2.v3;
faces.Add(newFace2);
if (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);
int uIndex = whichVert;
if (!hasHollow && sides > 4 && uIndex < newLayer.us.Count - 1)
{
uIndex++;
}
float u1 = newLayer.us[uIndex];
float u2 = 1.0f;
if (uIndex < (int)newLayer.us.Count - 1)
u2 = newLayer.us[uIndex + 1];
if (whichVert == cut1Vert || whichVert == cut2Vert)
{
u1 = 0.0f;
u2 = 1.0f;
if (uIndex < (int) newLayer.us.Count - 1) u2 = newLayer.us[uIndex + 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 -= u1;
u1 -= u1;
if (u2 < 0.1f)
u2 = 1.0f;
} else if (whichVert > profile.coords.Count - profile.numHollowVerts - 1)
{
u1 *= 2.0f;
u2 *= 2.0f;
//profileHollowFaceNumber = primFaceNum;
}
}
if (sphereMode)
{
if (whichVert != cut1Vert && whichVert != cut2Vert)
{
u1 = u1 * 2.0f - 1.0f;
u2 = u2 * 2.0f - 1.0f;
if (whichVert >= newLayer.numOuterVerts)
{
u1 -= hollow;
u2 -= hollow;
}
}
}
newViewerFace1.uv1.U = u1;
newViewerFace1.uv2.U = u1;
newViewerFace1.uv3.U = u2;
newViewerFace1.uv1.V = thisV;
newViewerFace1.uv2.V = lastV;
newViewerFace1.uv3.V = thisV;
newViewerFace2.uv1.U = u2;
newViewerFace2.uv2.U = u1;
newViewerFace2.uv3.U = u2;
newViewerFace2.uv1.V = thisV;
newViewerFace2.uv2.V = lastV;
newViewerFace2.uv3.V = lastV;
newViewerFace1.v1 = coords[newFace1.v1];
newViewerFace1.v2 = coords[newFace1.v2];
newViewerFace1.v3 = coords[newFace1.v3];
newViewerFace2.v1 = coords[newFace2.v1];
newViewerFace2.v2 = coords[newFace2.v2];
newViewerFace2.v3 = coords[newFace2.v3];
newViewerFace1.coordIndex1 = newFace1.v1;
newViewerFace1.coordIndex2 = newFace1.v2;
newViewerFace1.coordIndex3 = newFace1.v3;
newViewerFace2.coordIndex1 = newFace2.v1;
newViewerFace2.coordIndex2 = newFace2.v2;
newViewerFace2.coordIndex3 = newFace2.v3;
// profile cut faces
if (whichVert == cut1Vert)
{
newViewerFace1.primFaceNumber = cut1FaceNumber;
newViewerFace2.primFaceNumber = cut1FaceNumber;
newViewerFace1.n1 = newLayer.cutNormal1;
newViewerFace1.n2 = newViewerFace1.n3 = lastCutNormal1;
newViewerFace2.n1 = newViewerFace2.n3 = newLayer.cutNormal1;
newViewerFace2.n2 = lastCutNormal1;
} else if (whichVert == cut2Vert)
{
newViewerFace1.primFaceNumber = cut2FaceNumber;
newViewerFace2.primFaceNumber = cut2FaceNumber;
newViewerFace1.n1 = newLayer.cutNormal2;
newViewerFace1.n2 = lastCutNormal2;
newViewerFace1.n3 = lastCutNormal2;
newViewerFace2.n1 = newLayer.cutNormal2;
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 = normals[newFace1.n1];
newViewerFace1.n2 = normals[newFace1.n2];
newViewerFace1.n3 = normals[newFace1.n3];
newViewerFace2.n1 = normals[newFace2.n1];
newViewerFace2.n2 = normals[newFace2.n2];
newViewerFace2.n3 = normals[newFace2.n3];
}
}
viewerFaces.Add (newViewerFace1);
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 { primFaceNumber = 0 };
int numFaces = newLayer.faces.Count;
List<Face> faces2 = newLayer.faces;
for (int i = 0; i < numFaces; i++)
{
Face face = faces2 [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];
if (pathType == PathType.Linear)
{
newViewerFace.uv1.Flip();
newViewerFace.uv2.Flip();
newViewerFace.uv3.Flip();
}
viewerFaces.Add (newViewerFace);
}
}
} // for (int nodeIndex = 0; nodeIndex < path.pathNodes.Count; nodeIndex++)
}
void _SculptMesh (List<List<Coord>> rows, SculptType sculptType, 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)
invert = !invert;
viewerFaces = new List<ViewerFace> ();
int width = rows [0].Count;
int p1, p2, p3, p4;
int imageX, imageY;
if (sculptType != SculptType.plane)
{
if (rows.Count % 2 == 0)
{
foreach (List<Coord> t in rows)
t.Add (t [0]);
} else
{
int lastIndex = rows [0].Count - 1;
foreach (List<Coord> t in rows)
t [0] = t [lastIndex];
}
}
Coord topPole = rows [0] [width / 2];
Coord bottomPole = rows [rows.Count - 1] [width / 2];
if (sculptType == SculptType.sphere)
{
if (rows.Count % 2 == 0)
{
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
{
int count = rows [0].Count;
List<Coord> topPoleRow = rows [0];
List<Coord> bottomPoleRow = rows [rows.Count - 1];
for (int i = 0; i < count; i++)
{
topPoleRow [i] = topPole;
bottomPoleRow [i] = bottomPole;
}
}
}
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;
coords.Add (rows [imageY] [imageX]);
if (viewerMode)
{
normals.Add (new Coord ());
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) { uv1 = p1, uv2 = p4, uv3 = p3 };
f2 = new Face (p1, p2, p4, p1, p2, p4) { uv1 = p1, uv2 = p2, uv3 = p4 };
} else
{
f1 = new Face (p1, p3, p4, p1, p3, p4) { uv1 = p1, uv2 = p3, uv3 = p4 };
f2 = new Face (p1, p4, p2, p1, p4, p2) { uv1 = p1, uv2 = p4, 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);
}
}
faces.Add (f1);
faces.Add (f2);
}
}
}
if (viewerMode)
calcVertexNormals (sculptType, coordsAcross, coordsDown);
}