internal Profile Copy(bool needFaces)
{
Profile copy = new Profile ();
copy.coords.AddRange (coords);
copy.faceUVs.AddRange (faceUVs);
if (needFaces)
copy.faces.AddRange (faces);
if ((copy.calcVertexNormals = calcVertexNormals))
{
copy.vertexNormals.AddRange (vertexNormals);
copy.faceNormal = faceNormal;
copy.cutNormal1 = cutNormal1;
copy.cutNormal2 = cutNormal2;
copy.us.AddRange (us);
copy.faceNumbers.AddRange (faceNumbers);
copy.cut1CoordIndices = new List<int> (cut1CoordIndices);
copy.cut2CoordIndices = new List<int> (cut2CoordIndices);
copy.hollowCoordIndices = new List<int> (hollowCoordIndices);
copy.outerCoordIndices = new List<int> (outerCoordIndices);
}
copy.numOuterVerts = numOuterVerts;
copy.numHollowVerts = numHollowVerts;
return copy;
}
/// <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++)
}