public void AddVertex(Vector3 pos, Vector3 normal, Vector2 texCoord)
{
Vertices.Add(pos);
Normals.Add(normal);
TexCoords.Add(texCoord);
Indices.Add(Indices.Count);
}
public void AddVtx(Primitive src, int vtxIdx)
{
VertexCount++;
Matrices.Add(src.Matrices[vtxIdx]);
Positions.Add(src.Positions[vtxIdx]);
Normals.Add(src.Normals[vtxIdx]);
Colors.Add(src.Colors[vtxIdx]);
TexCoords.Add(src.TexCoords[vtxIdx]);
}
public Geoset1300(BinaryReader br)
{
TotalSize = br.ReadUInt32();
long end = TotalSize + br.BaseStream.Position;
//Vertices
if (br.HasTag("VRTX"))
{
NrOfVertices = br.ReadUInt32();
for (int i = 0; i < NrOfVertices; i++)
{
Vertices.Add(new CVector3(br));
}
}
//Normals
if (br.HasTag("NRMS"))
{
NrOfNormals = br.ReadUInt32();
for (int i = 0; i < NrOfNormals; i++)
{
Normals.Add(new CVector3(br));
}
}
//TexCoords
if (br.HasTag("UVAS"))
{
NrOfTexCoords = br.ReadUInt32(); //Amount of groups
for (int i = 0; i < NrOfNormals * NrOfTexCoords; i++)
{
TexCoords.Add(new CVector2(br));
}
}
//Face Group Type
if (br.HasTag("PTYP"))
{
NrOfFaceTypeGroups = br.ReadUInt32();
FaceTypes.AddRange(br.ReadBytes((int)NrOfFaceTypeGroups));
}
//Face Groups
if (br.HasTag("PCNT"))
{
NrOfFaceGroups = br.ReadUInt32();
for (int i = 0; i < NrOfFaceGroups; i++)
{
FaceGroups.Add(br.ReadUInt32());
}
}
//Indexes
if (br.HasTag("PVTX"))
{
NrOfFaceVertices = br.ReadUInt32();
for (int i = 0; i < NrOfFaceVertices / 3; i++)
{
FaceVertices.Add(new CVertex(br));
}
}
//Vertex Groups
if (br.HasTag("GNDX"))
{
NrOfVertexGroupIndices = br.ReadUInt32();
VertexGroupIndices.AddRange(br.ReadBytes((int)NrOfVertexGroupIndices));
}
//Matrix Groups
if (br.HasTag("MTGC"))
{
NrOfMatrixGroups = br.ReadUInt32();
for (int i = 0; i < NrOfMatrixGroups; i++)
{
MatrixGroups.Add(br.ReadUInt32());
}
}
//Matrix Indexes
if (br.HasTag("MATS"))
{
NrOfMatrixIndexes = br.ReadUInt32();
for (int i = 0; i < NrOfMatrixIndexes; i++)
{
MatrixIndexes.Add(br.ReadUInt32());
}
}
//Bone Indexes
if (br.HasTag("BIDX"))
{
NrOfBoneIndexes = br.ReadUInt32();
for (int i = 0; i < NrOfBoneIndexes; i++)
{
BoneIndexes.Add(br.ReadUInt32());
}
}
//Bone Weights
if (br.HasTag("BWGT"))
{
NrOfBoneWeights = br.ReadUInt32();
for (int i = 0; i < NrOfBoneWeights; i++)
{
BoneWeights.Add(br.ReadUInt32());
}
}
MaterialId = br.ReadUInt32();
SelectionGroup = br.ReadUInt32();
Unselectable = br.ReadUInt32() == 1;
Bounds = new CExtent(br);
//Extents
NrOfExtents = br.ReadUInt32();
for (int i = 0; i < NrOfExtents; i++)
{
Extents.Add(new CExtent(br));
}
//Grouped Vertices
for (int i = 0; i < NrOfVertices; i++)
{
if (!GroupedVertices.ContainsKey(VertexGroupIndices[i]))
{
GroupedVertices.Add(VertexGroupIndices[i], new List <CVector3>());
}
GroupedVertices[VertexGroupIndices[i]].Add(Vertices[i]);
}
}
protected bool CreateSide(Volume volume, bool partialBuild)
{
bool flat = TypeMask.HasFlag(VolumeFaceMask.Flat);
SculptType sculptStitching = volume.Parameters.SculptType;
SculptFlags sculptFlags = volume.Parameters.SculptFlags;
bool sculptInvert = sculptFlags.HasFlag(SculptFlags.Invert);
bool sculptMirror = sculptFlags.HasFlag(SculptFlags.Mirror);
bool sculptReverseHorizontal = (sculptInvert ? !sculptMirror : sculptMirror); // XOR
int numVertices, numIndices;
List <Vector3> mesh = volume.Points;
List <Vector3> profile = volume.Profile.Points;
List <Path.PathPoint> pathData = volume.Path.Points;
int maxS = volume.Profile.PointCount;
int s, t, i;
float ss, tt;
numVertices = NumS * NumT;
numIndices = (NumS - 1) * (NumT - 1) * 6;
// TODO: How does partial builds work?
//partial_build = (num_vertices > NumVertices || num_indices > NumIndices) ? false : partial_build;
//if (!partial_build)
//{
// resizeVertices(num_vertices);
// resizeIndices(num_indices);
// if (!volume->isMeshAssetLoaded())
// {
// mEdge.resize(num_indices);
// }
//}
Positions.Clear();
Normals.Clear();
Indices.Clear();
Edge.Clear();
float beginStex = Mathf.Floor(profile[BeginS][2]);
bool test = TypeMask.HasFlag(VolumeFaceMask.Inner | VolumeFaceMask.Flat) && NumS > 2;
int numS = test ? NumS / 2 : NumS;
int curVertex = 0;
int endT = BeginT + NumT;
// Copy the vertices into the array
for (t = BeginT; t < endT; t++)
{
tt = pathData[t].ExtrusionT;
for (s = 0; s < numS; s++)
{
if (TypeMask.HasFlag(VolumeFaceMask.End))
{
ss = s > 0 ? 1f : 0f;
}
else
{
// Get s value for tex-coord.
if (!flat)
{
ss = profile[BeginS + s][2];
}
else
{
ss = profile[BeginS + s][2] - beginStex;
}
}
if (sculptReverseHorizontal)
{
ss = 1f - ss;
}
// Check to see if this triangle wraps around the array.
if (BeginS + s >= maxS)
{
// We're wrapping
i = BeginS + s + maxS * (t - 1);
}
else
{
i = BeginS + s + maxS * t;
}
Positions.Add(mesh[i]);
Normals.Add(Vector3.zero); // This will be calculated later
TexCoords.Add(new Vector2(ss, tt));
curVertex++;
if (test && s > 0)
{
Positions.Add(mesh[i]);
Normals.Add(Vector3.zero); // This will be calculated later
TexCoords.Add(new Vector2(ss, tt));
curVertex++;
}
}
if (test)
{
s = TypeMask.HasFlag(VolumeFaceMask.Open) ? numS - 1 : 0;
i = BeginS + s + maxS * t;
ss = profile[BeginS + s][2] - beginStex;
Positions.Add(mesh[i]);
Normals.Add(Vector3.zero); // This will be calculated later
TexCoords.Add(new Vector2(ss, tt));
curVertex++;
}
}
Centre = Vector3.zero;
int curPos = 0;
int endPos = Positions.Count;
//get bounding box for this side
Vector3 faceMin;
Vector3 faceMax;
faceMin = faceMax = Positions[curPos++];
while (curPos < endPos)
{
UpdateMinMax(ref faceMin, ref faceMax, Positions[curPos++]);
}
// VFExtents change
ExtentsMin = faceMin;
ExtentsMax = faceMax;
int tcCount = NumVertices;
if (tcCount % 2 == 1)
{ //odd number of texture coordinates, duplicate last entry to padded end of array
tcCount++;
TexCoords.Add(TexCoords[NumVertices - 1]);
}
int curTc = 0;
int endTc = TexCoords.Count;
Vector3 tcMin;
Vector3 tcMax;
tcMin = tcMax = TexCoords[curTc++];
while (curTc < endTc)
{
UpdateMinMax(ref tcMin, ref tcMax, TexCoords[curTc++]);
}
//TODO: TexCoordExtents are weird this assumes Vector4
//TexCoordExtentsMin.x = llmin(minp[0], minp[2]);
//TexCoordExtentsMin.y = llmin(minp[1], minp[3]);
//TexCoordExtentsMax.x = llmax(maxp[0], maxp[2]);
//TexCoordExtentsMax.y = llmax(maxp[1], maxp[3]);
Centre = (faceMin + faceMax) * 0.5f;
bool flatFace = TypeMask.HasFlag(VolumeFaceMask.Flat); //(TypeMask & VolumeFaceMask.Flat) != 0;
if (!partialBuild)
{
// Now we generate the indices.
for (t = 0; t < (NumT - 1); t++)
{
for (s = 0; s < (NumS - 1); s++)
{
Indices.Add(s + NumS * t); //bottom left
Indices.Add(s + 1 + NumS * (t + 1)); //top right
Indices.Add(s + NumS * (t + 1)); //top left
Indices.Add(s + NumS * t); //bottom left
Indices.Add(s + 1 + NumS * t); //bottom right
Indices.Add(s + 1 + NumS * (t + 1)); //top right
Edge.Add((NumS - 1) * 2 * t + s * 2 + 1); //bottom left/top right neighbor face
if (t < NumT - 2)
{ //top right/top left neighbor face
Edge.Add((NumS - 1) * 2 * (t + 1) + s * 2 + 1);
}
else if (NumT <= 3 || volume.Path.IsOpen == true)
{ //no neighbor
Edge.Add(-1);
}
else
{ //wrap on T
Edge.Add(s * 2 + 1);
}
if (s > 0)
{ //top left/bottom left neighbor face
Edge.Add((NumS - 1) * 2 * t + s * 2 - 1);
}
else if (flatFace || volume.Profile.IsOpen == true)
{ //no neighbor
Edge.Add(-1);
}
else
{ //wrap on S
Edge.Add((NumS - 1) * 2 * t + (NumS - 2) * 2 + 1);
}
if (t > 0)
{ //bottom left/bottom right neighbor face
Edge.Add((NumS - 1) * 2 * (t - 1) + s * 2);
}
else if (NumT <= 3 || volume.Path.IsOpen == true)
{ //no neighbor
Edge.Add(-1);
}
else
{ //wrap on T
Edge.Add((NumS - 1) * 2 * (NumT - 2) + s * 2);
}
if (s < NumS - 2)
{ //bottom right/top right neighbor face
Edge.Add((NumS - 1) * 2 * t + (s + 1) * 2);
}
else if (flatFace || volume.Profile.IsOpen == true)
{ //no neighbor
Edge.Add(-1);
}
else
{ //wrap on S
Edge.Add((NumS - 1) * 2 * t);
}
Edge.Add((NumS - 1) * 2 * t + s * 2); //top right/bottom left neighbor face
}
}
}
// //clear normals
//int dst = Normals.Count;
//int end = dst + NumVertices;
//Vector3 zero = Vector3.zero;
//while (dst < end)
// {
// Normals.Add(zero);
// dst++;
//}
//generate normals
// Compute triangle normals:
int count = Indices.Count / 3;
List <Vector3> triangleNormals = new List <Vector3>();
int idx = 0;
for (int triangleIndex = 0; triangleIndex < count; triangleIndex++)
{
Vector3 p0 = Positions[Indices[idx + 0]];
Vector3 p1 = Positions[Indices[idx + 1]];
Vector3 p2 = Positions[Indices[idx + 2]];
//calculate triangle normal
Vector3 a = p1 - p0;
Vector3 b = p2 - p0;
Vector3 normal = Vector3.Cross(a, b);
if (Vector3.Dot(normal, normal) > 0.00001f)
{
normal.Normalize();
}
else
{
//degenerate, make up a value
normal = normal.z >= 0 ? new Vector3(0f, 0f, 1f) : new Vector3(0f, 0f, -1f);
}
// This is probably an optimised way to calculate this:
//LLQuad & vector1 = *((LLQuad*)&v1);
//LLQuad & vector2 = *((LLQuad*)&v2);
//LLQuad & amQ = *((LLQuad*)&a);
//LLQuad & bmQ = *((LLQuad*)&b);
// Vectors are stored in memory in w, z, y, x order from high to low
// Set vector1 = { a[W], a[X], a[Z], a[Y] }
//vector1 = _mm_shuffle_ps(amQ, amQ, _MM_SHUFFLE(3, 0, 2, 1));
// Set vector2 = { b[W], b[Y], b[X], b[Z] }
//vector2 = _mm_shuffle_ps(bmQ, bmQ, _MM_SHUFFLE(3, 1, 0, 2));
// mQ = { a[W]*b[W], a[X]*b[Y], a[Z]*b[X], a[Y]*b[Z] }
//vector2 = _mm_mul_ps(vector1, vector2);
// vector3 = { a[W], a[Y], a[X], a[Z] }
//amQ = _mm_shuffle_ps(amQ, amQ, _MM_SHUFFLE(3, 1, 0, 2));
// vector4 = { b[W], b[X], b[Z], b[Y] }
//bmQ = _mm_shuffle_ps(bmQ, bmQ, _MM_SHUFFLE(3, 0, 2, 1));
// mQ = { 0, a[X]*b[Y] - a[Y]*b[X], a[Z]*b[X] - a[X]*b[Z], a[Y]*b[Z] - a[Z]*b[Y] }
//vector1 = _mm_sub_ps(vector2, _mm_mul_ps(amQ, bmQ));
//llassert(v1.isFinite3());
triangleNormals.Add(normal);
idx += 3;
}
// Add triangle normal contributions from each triangle to the vertex normals:
idx = 0;
for (int triangleIndex = 0; triangleIndex < count; triangleIndex++) //for each triangle
{
Vector3 c = triangleNormals[triangleIndex];
Vector3 n0 = Normals[Indices[idx + 0]];
Vector3 n1 = Normals[Indices[idx + 1]];
Vector3 n2 = Normals[Indices[idx + 2]];
n0 += c;
n1 += c;
n2 += c;
//llassert(c.isFinite3());
//even out quad contributions
switch (triangleIndex % 2 + 1)
{
case 0: n0 += c; break;
case 1: n1 += c; break;
case 2: n2 += c; break;
}
;
Normals[Indices[idx + 0]] = n0;
Normals[Indices[idx + 1]] = n1;
Normals[Indices[idx + 2]] = n2;
idx += 3;
}
// adjust normals based on wrapping and stitching
Vector3 top = (Positions[0] - Positions[NumS * (NumT - 2)]);
bool s_bottom_converges = Vector3.Dot(top, top) < 0.000001f;
top = Positions[NumS - 1] - Positions[NumS * (NumT - 2) + NumS - 1];
bool s_top_converges = Vector3.Dot(top, top) < 0.000001f;
if (sculptStitching == SculptType.None) // logic for non-sculpt volumes
{
if (volume.Path.IsOpen == false)
{ //wrap normals on T
for (int j = 0; j < NumS; j++)
{
Vector3 n = Normals[j] + Normals[NumS * (NumT - 1) + j];
Normals[j] = n;
Normals[NumS * (NumT - 1) + j] = n;
}
}
if ((volume.Profile.IsOpen == false) && !(s_bottom_converges))
{ //wrap normals on S
for (int j = 0; j < NumT; j++)
{
Vector3 n = Normals[NumS * j] + Normals[NumS * j + NumS - 1];
Normals[NumS * j] = n;
Normals[NumS * j + NumS - 1] = n;
}
}
if (volume.Parameters.PathParameters.PathType == PathType.Circle &&
volume.Parameters.ProfileParameters.ProfileType == ProfileType.CircleHalf)
{
if (s_bottom_converges)
{ //all lower S have same normal
for (int j = 0; j < NumT; j++)
{
Normals[NumS * j] = new Vector3(1f, 0f, 0f);
}
}
if (s_top_converges)
{ //all upper S have same normal
for (int j = 0; j < NumT; j++)
{
Normals[NumS * j + NumS - 1] = new Vector3(-1f, 0f, 0f);
}
}
}
}
//else // logic for sculpt volumes
//{
//BOOL average_poles = FALSE;
//BOOL wrap_s = FALSE;
//BOOL wrap_t = FALSE;
//if (sculpt_stitching == LL_SCULPT_TYPE_SPHERE)
// average_poles = TRUE;
//if ((sculpt_stitching == LL_SCULPT_TYPE_SPHERE) ||
// (sculpt_stitching == LL_SCULPT_TYPE_TORUS) ||
// (sculpt_stitching == LL_SCULPT_TYPE_CYLINDER))
// wrap_s = TRUE;
//if (sculpt_stitching == LL_SCULPT_TYPE_TORUS)
// wrap_t = TRUE;
//if (average_poles)
//{
// // average normals for north pole
// LLVector4a average;
// average.clear();
// for (S32 i = 0; i < mNumS; i++)
// {
// average.add(norm[i]);
// }
// // set average
// for (S32 i = 0; i < mNumS; i++)
// {
// norm[i] = average;
// }
// // average normals for south pole
// average.clear();
// for (S32 i = 0; i < mNumS; i++)
// {
// average.add(norm[i + mNumS * (mNumT - 1)]);
// }
// // set average
// for (S32 i = 0; i < mNumS; i++)
// {
// norm[i + mNumS * (mNumT - 1)] = average;
// }
// }
//if (wrap_s)
//{
// for (S32 i = 0; i < mNumT; i++)
// {
// LLVector4a n;
// n.setAdd(norm[mNumS * i], norm[mNumS * i + mNumS - 1]);
// norm[mNumS * i] = n;
// norm[mNumS * i + mNumS - 1] = n;
// }
//}
//if (wrap_t)
//{
// for (S32 i = 0; i < mNumS; i++)
// {
// LLVector4a n;
// n.setAdd(norm[i], norm[mNumS * (mNumT - 1) + i]);
// norm[i] = n;
// norm[mNumS * (mNumT - 1) + i] = n;
// }
//}
//}
// Normalise normals:
for (int normalIndex = 0; normalIndex < Normals.Count; normalIndex++)
{
Normals[normalIndex] = Normals[normalIndex].normalized;
}
return(true);
}
protected bool CreateUnCutCubeCap(Volume volume, bool partialBuild)
{
List <Vector3> mesh = volume.Points;
List <Vector3> profile = volume.Profile.Points;
int maxS = volume.Profile.PointCount;
int maxT = volume.Path.PointCount;
int gridSize = (profile.Count - 1) / 4;
// VFExtents change
Vector3 min = ExtentsMin;
Vector3 max = ExtentsMax;
int offset = ((TypeMask & VolumeFaceMask.Top) != 0)
? (maxT - 1) * maxS
: BeginS;
{
VertexData[] corners = new VertexData[4];
VertexData baseVert = new VertexData();
for (int t = 0; t < 4; t++)
{
corners[t] = new VertexData
{
Position = mesh[offset + (gridSize * t)],
TexCoord = new Vector2(profile[gridSize * t].x + 0.5f, 0.5f - profile[gridSize * t].y)
};
}
{
Vector3 lhs = corners[1].Position - corners[0].Position;
Vector3 rhs = corners[2].Position - corners[1].Position;
baseVert.Normal = Vector3.Cross(lhs, rhs);
baseVert.Normal.Normalize();
}
if ((TypeMask & VolumeFaceMask.Top) == 0)
{
baseVert.Normal *= -1.0f;
}
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;
}
int size = (gridSize + 1) * (gridSize + 1);
//resizeVertices(size);
Positions.Clear();
Normals.Clear();
Tangents.Clear();
TexCoords.Clear();
Indices.Clear();
Edge.Clear();
for (int gx = 0; gx < gridSize + 1; gx++)
{
for (int gy = 0; gy < gridSize + 1; gy++)
{
VertexData newVert = LerpPlanarVertex(corners[0],
corners[1],
corners[3],
(float)gx / (float)gridSize,
(float)gy / (float)gridSize);
Positions.Add(newVert.Position);
Normals.Add(baseVert.Normal);
TexCoords.Add(newVert.TexCoord);
if (gx == 0 && gy == 0)
{
min = newVert.Position;
max = min;
}
else
{
UpdateMinMax(ref min, ref max, newVert.Position);
}
}
}
Centre = (min + max) * 0.5f;
ExtentsMin = min;
ExtentsMax = max;
}
if (!partialBuild)
{
int[] idxs = { 0, 1, (gridSize + 1) + 1, (gridSize + 1) + 1, (gridSize + 1), 0 };
for (int gx = 0; gx < gridSize; gx++)
{
for (int gy = 0; gy < gridSize; gy++)
{
if ((TypeMask & VolumeFaceMask.Top) != 0)
{
for (int i = 5; i >= 0; i--)
{
Indices.Add((gy * (gridSize + 1)) + gx + idxs[i]);
}
int edgeValue = gridSize * 2 * gy + gx * 2;
if (gx > 0)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1); // Mark face to higlight it
}
if (gy < gridSize - 1)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
Edge.Add(edgeValue);
if (gx < gridSize - 1)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
if (gy > 0)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
Edge.Add(edgeValue);
}
else
{
for (int i = 0; i < 6; i++)
{
Indices.Add((gy * (gridSize + 1)) + gx + idxs[i]);
}
int edgeValue = gridSize * 2 * gy + gx * 2;
if (gy > 0)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
if (gx < gridSize - 1)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
Edge.Add(edgeValue);
if (gy < gridSize - 1)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
if (gx > 0)
{
Edge.Add(edgeValue);
}
else
{
Edge.Add(-1);
}
Edge.Add(edgeValue);
}
}
}
}
return(true);
}
protected bool CreateCap(Volume volume, bool partialBuild)
{
if ((TypeMask & VolumeFaceMask.Hollow) == 0 &&
(TypeMask & VolumeFaceMask.Open) == 0 &&
((volume.Parameters.PathParameters.Begin == 0.0f) &&
(volume.Parameters.PathParameters.End == 1.0f)) &&
(volume.Parameters.ProfileParameters.ProfileType == ProfileType.Square &&
volume.Parameters.PathParameters.PathType == PathType.Line)
)
{
return(CreateUnCutCubeCap(volume, partialBuild));
}
int numVertices = 0, numIndices = 0;
List <Vector3> mesh = volume.Points;
List <Vector3> profile = volume.Profile.Points;
// All types of caps have the same number of vertices and indices
numVertices = profile.Count;
numIndices = (profile.Count - 2) * 3;
//if ((TypeMask & VolumeFaceMask.Hollow) == 0 && (TypeMask & VolumeFaceMask.Open) == 0)
//{
// resizeVertices(num_vertices + 1);
// //if (!partial_build)
// {
// resizeIndices(num_indices + 3);
// }
//}
//else
//{
// resizeVertices(num_vertices);
// //if (!partial_build)
// {
// resizeIndices(num_indices);
// }
//}
Positions.Clear();
Normals.Clear();
Tangents.Clear();
TexCoords.Clear();
Indices.Clear();
Edge.Clear();
int maxS = volume.Profile.PointCount;
int maxT = volume.Path.PointCount;
Centre = Vector3.zero;
int offset = ((TypeMask & VolumeFaceMask.Top) != 0)
? (maxT - 1) * maxS
: BeginS;
// Figure out the normal, assume all caps are flat faces.
// Cross product to get normals.
Vector2 cuv;
Vector2 min_uv, max_uv;
// VFExtents change
Vector3 min = ExtentsMin;
Vector3 max = ExtentsMax;
// Copy the vertices into the array
int srcIndex = offset; // Index in mesh
int endIndex = srcIndex + numVertices; // Index in mesh
min = mesh[srcIndex];
max = min;
int pIndex = 0; // Index in profile
if ((TypeMask & VolumeFaceMask.Top) != 0)
{
min_uv.x = profile[pIndex].x + 0.5f;
min_uv.y = profile[pIndex].y + 0.5f;
max_uv = min_uv;
while (srcIndex < endIndex)
{
Vector2 tc = new Vector2(profile[pIndex].x + 0.5f, profile[pIndex].y + 0.5f);
UpdateMinMax(ref min_uv, ref max_uv, tc);
TexCoords.Add(tc);
UpdateMinMax(ref min, ref max, mesh[srcIndex]);
Positions.Add(mesh[srcIndex]);
++pIndex;
++srcIndex;
}
}
else
{
min_uv.x = profile[pIndex].x + 0.5f;
min_uv.y = 0.5f - profile[pIndex].y;
max_uv = min_uv;
while (srcIndex < endIndex)
{
// Mirror for underside.
Vector2 tc = new Vector2(profile[pIndex].x + 0.5f, 0.5f - profile[pIndex].y);
UpdateMinMax(ref min_uv, ref max_uv, tc);
TexCoords.Add(tc);
UpdateMinMax(ref min, ref max, mesh[srcIndex]);
Positions.Add(mesh[srcIndex]);
++pIndex;
++srcIndex;
}
}
Centre = (min + max) * 0.5f;
cuv = (min_uv + max_uv) * 0.5f;
VertexData vd = new VertexData
{
Position = Centre,
TexCoord = cuv
};
if ((TypeMask & VolumeFaceMask.Hollow) == 0 && (TypeMask & VolumeFaceMask.Open) == 0)
{
Positions.Add(Centre);
TexCoords.Add(cuv);
numVertices++;
}
//if (partial_build)
//{
// return TRUE;
//}
if ((TypeMask & VolumeFaceMask.Hollow) != 0)
{
CreateHollowCap(numVertices, profile, (TypeMask & VolumeFaceMask.Top) == 0);
}
else
{
// Not hollow, generate the triangle fan.
CreateSolidCap(numVertices);
}
Vector3 d0 = Positions[Indices[1]] - Positions[Indices[0]];
Vector3 d1 = Positions[Indices[2]] - Positions[Indices[0]];
Vector3 normal = Vector3.Cross(d0, d1);
if (Vector3.Dot(normal, normal) > 0.00001f)
{
normal.Normalize();
}
else
{
//degenerate, make up a value
normal = normal.z >= 0 ? new Vector3(0f, 0f, 1f) : new Vector3(0f, 0f, -1f);
}
//llassert(llfinite(normal.getF32ptr()[0]));
//llassert(llfinite(normal.getF32ptr()[1]));
//llassert(llfinite(normal.getF32ptr()[2]));
//llassert(!llisnan(normal.getF32ptr()[0]));
//llassert(!llisnan(normal.getF32ptr()[1]));
//llassert(!llisnan(normal.getF32ptr()[2]));
for (int i = 0; i < numVertices; i++)
{
Normals.Add(normal);
}
return(true);
}
public void Create(string filename)
{
if (!File.Exists(filename))
{
Console.WriteLine("[E] Could not find: {0}", filename);
return;
}
var vertices = new List <Vector3>();
var verticeIndice = new List <int>();
var texCoords = new List <Vector2>();
var texCoordIndice = new List <int>();
var normals = new List <Vector3>();
var normalIndice = new List <int>();
using (var objStream = new StreamReader(filename))
{
while (!objStream.EndOfStream)
{
var line = objStream.ReadLine().Trim();
#region "Sort out Vertices"
if (line.StartsWith("v "))
{
var vertexParts = Functions.SplitString(line.Replace(" ", " "), " ");
var vertice = new Vector3(
float.Parse(vertexParts[1], CultureInfo.InvariantCulture.NumberFormat),
float.Parse(vertexParts[2], CultureInfo.InvariantCulture.NumberFormat),
float.Parse(vertexParts[3], CultureInfo.InvariantCulture.NumberFormat)
);
vertices.Add(vertice);
continue;
}
if (line.StartsWith("vt "))
{
var vertexTexCoord = Functions.SplitString(line, " ");
var texCoord = new Vector2(
float.Parse(vertexTexCoord[1], CultureInfo.InvariantCulture.NumberFormat),
float.Parse(vertexTexCoord[2], CultureInfo.InvariantCulture.NumberFormat)
);
texCoords.Add(texCoord);
continue;
}
if (line.StartsWith("vn "))
{
var vertexNormal = Functions.SplitString(line, " ");
var normal = new Vector3(
float.Parse(vertexNormal[1], CultureInfo.InvariantCulture.NumberFormat),
float.Parse(vertexNormal[2], CultureInfo.InvariantCulture.NumberFormat),
float.Parse(vertexNormal[3], CultureInfo.InvariantCulture.NumberFormat)
);
normals.Add(normal);
continue;
}
#endregion
#region "Faces"
if (line.StartsWith("f "))
{
var faceParts = Functions.SplitString(line, " ").ToList();
for (var f = 0; f < faceParts.Count; f++)
{
var face = Functions.SplitString(faceParts[f], "/");
if (face.Length < 2)
{
continue;
}
verticeIndice.Add(int.Parse(face[0]) - 1);
texCoordIndice.Add(int.Parse(face[1]) - 1);
normalIndice.Add(int.Parse(face[2]) - 1);
}
}
#endregion
}
objStream.Close();
}
int indice = 0;
foreach (var item in verticeIndice)
{
Vertices.Add(vertices[item]);
Indices.Add(indice++);
}
foreach (var item in texCoordIndice)
{
TexCoords.Add(texCoords[item]);
}
foreach (var item in normalIndice)
{
Normals.Add(normals[item]);
}
VertexArray.Upload(Vertices, Indices);
VertexArray.Upload(TexCoords);
VertexArray.Upload(Normals, new List <int>());
}
private void AddTexCoord(string values)
{
var fields = Split(values);
TexCoords.Add(new Point(fields[0], 1 - fields[1]));
}