public override void InitWithGeometry(Geometry geometry)
{
VertexUnit unit1 = geometry.VertexUnit(edge.id1);
VertexUnit unit2 = geometry.VertexUnit(edge.id2);
VertexLine unit3 = new VertexLine(unit1, unit2, ratio);
unit3.preferredSign = sign;
geometry.VertexUnitSetId(unit3, 0);
units = new VertexUnit[] { unit3 };
List <GeoElement> elementList = new List <GeoElement>();
GeoVertex geoVertex = new GeoVertex(unit3);
elementList.Add(geoVertex);
// if (!geometry.IsEdge(id, id1))
// elementList.Add(new GeoEdge(id, id1));
// if (!geometry.IsEdge(id, id2))
// elementList.Add(new GeoEdge(id, id2));
elements = elementList.ToArray();
dependencies.Add(unit1);
dependencies.Add(unit2);
}
public virtual VertexLine[] ToLines()
{
VertexLine[] lines = new VertexLine[Vertices.Count];
for (int i = 0; i < Vertices.Count - 1; ++i)
{
lines[i] = new VertexLine(Vertices[i].HardCopy(), Vertices[i + 1].HardCopy());
}
lines[Vertices.Count - 1] = new VertexLine(Vertices[Vertices.Count - 1].HardCopy(), Vertices[0].HardCopy());
return(lines);
}
public static void DecodePrimitives(
Geometry geo,
Matrix4 bindMatrix,
InfluenceDef[] infList,
out VertexShaderDesc info,
out List <VertexPrimitive> lines,
out List <VertexPolygon> faces)
{
info = VertexShaderDesc.JustPositions();
lines = new List <VertexPrimitive>();
faces = new List <VertexPolygon>();
Source src;
int boneCount = 0;
if (infList != null)
{
HashSet <string> bones = new HashSet <string>();
foreach (InfluenceDef inf in infList)
{
for (int i = 0; i < inf.WeightCount; ++i)
{
bones.Add(inf.Weights[i].Bone);
}
}
boneCount = bones.Count;
}
info.BoneCount = boneCount;
var m = geo.MeshElement;
if (m == null)
{
return;
}
Vertices vertsElem;
foreach (var prim in m.PrimitiveElements)
{
Dictionary <ESemantic, int> semanticCounts = new Dictionary <ESemantic, int>();
Dictionary <ESemantic, Dictionary <int, Source> > inputSources = new Dictionary <ESemantic, Dictionary <int, Source> >();
Dictionary <ESemantic, Source> vertexInputSources = new Dictionary <ESemantic, Source>();
foreach (InputShared inp in prim.InputElements)
{
if (inp.CommonSemanticType == ESemantic.VERTEX)
{
vertsElem = inp.Source.GetElement <Vertices>(inp.Root);
foreach (InputUnshared input in vertsElem.InputElements)
{
ESemantic semantic = input.CommonSemanticType;
if (semanticCounts.ContainsKey(semantic))
{
++semanticCounts[semantic];
}
else
{
semanticCounts.Add(semantic, 1);
}
src = input.Source.GetElement <Source>(vertsElem.Root);
vertexInputSources[input.CommonSemanticType] = src;
}
continue;
}
else
{
ESemantic semantic = inp.CommonSemanticType;
if (semanticCounts.ContainsKey(semantic))
{
++semanticCounts[semantic];
}
else
{
semanticCounts.Add(semantic, 1);
}
src = inp.Source.GetElement <Source>(inp.Root);
if (src != null)
{
if (!inputSources.ContainsKey(semantic))
{
inputSources.Add(semantic, new Dictionary <int, Source>());
}
int set = (int)inp.Set;
if (!inputSources[semantic].ContainsKey(set))
{
inputSources[semantic].Add(set, src);
}
else
{
inputSources[semantic][set] = src;
}
}
}
}
info.MorphCount = 0; //Morphs are stored in separate geometry entries, so they need to be combined later
info.HasNormals = semanticCounts.ContainsKey(ESemantic.NORMAL) && semanticCounts[ESemantic.NORMAL] > 0;
bool hasTexBinormal = semanticCounts.ContainsKey(ESemantic.TEXBINORMAL) && semanticCounts[ESemantic.TEXBINORMAL] > 0;
bool hasBinormal = semanticCounts.ContainsKey(ESemantic.BINORMAL) && semanticCounts[ESemantic.BINORMAL] > 0;
info.HasBinormals = hasTexBinormal || hasBinormal;
bool hasTexTangent = semanticCounts.ContainsKey(ESemantic.TEXTANGENT) && semanticCounts[ESemantic.TEXTANGENT] > 0;
bool hasTangent = semanticCounts.ContainsKey(ESemantic.TANGENT) && semanticCounts[ESemantic.TANGENT] > 0;
info.HasTangents = hasTexTangent || hasTangent;
info.ColorCount = semanticCounts.ContainsKey(ESemantic.COLOR) ? semanticCounts[ESemantic.COLOR] : 0;
info.TexcoordCount = semanticCounts.ContainsKey(ESemantic.TEXCOORD) ? semanticCounts[ESemantic.TEXCOORD] : 0;
int maxSets = Math.Max(info.MorphCount + 1,
Math.Max(info.ColorCount, info.TexcoordCount));
Vertex[][] vertices = new Vertex[prim.PointCount][];
int[] indices = prim?.IndicesElement?.StringContent?.Values;
if (indices == null)
{
WriteLine("Mesh has no face indices. Mesh will be empty.");
return;
}
Matrix4 invTranspBindMatrix = bindMatrix;
if (info.HasNormals || info.HasBinormals || info.HasTangents)
{
invTranspBindMatrix.Invert();
invTranspBindMatrix.Transpose();
}
foreach (var inp in prim.InputElements)
{
int set = (int)inp.Set;
int offset = (int)inp.Offset;
if (inp.CommonSemanticType == ESemantic.VERTEX)
{
foreach (ESemantic s in vertexInputSources.Keys)
{
src = vertexInputSources[s];
DecodeSource(src, s, offset, set, maxSets, prim, indices, vertices, infList, bindMatrix, invTranspBindMatrix);
}
}
else
{
src = inputSources[inp.CommonSemanticType][set];
DecodeSource(src, inp.CommonSemanticType, offset, set, maxSets, prim, indices, vertices, infList, bindMatrix, invTranspBindMatrix);
}
}
int setIndex = 0;
switch (prim.Type)
{
case EColladaPrimitiveType.Lines:
VertexLine[] linesTemp = new VertexLine[vertices.Length / 2];
for (int i = 0, x = 0; i < vertices.Length; i += 2, ++x)
{
linesTemp[x] = new VertexLine(vertices[i][setIndex], vertices[i + 1][setIndex]);
}
lines.AddRange(linesTemp);
break;
case EColladaPrimitiveType.Linestrips:
lines.Add(new VertexLineStrip(false, vertices.Select(x => x[setIndex]).ToArray()));
break;
case EColladaPrimitiveType.Triangles:
VertexTriangle[] tris = new VertexTriangle[vertices.Length / 3];
for (int i = 0, x = 0; i < vertices.Length; i += 3, ++x)
{
tris[x] = new VertexTriangle(
vertices[i][setIndex],
vertices[i + 1][setIndex],
vertices[i + 2][setIndex]);
}
faces.AddRange(tris);
break;
case EColladaPrimitiveType.Trifans:
faces.Add(new VertexTriangleFan(vertices.Select(x => x[setIndex]).ToArray()));
break;
case EColladaPrimitiveType.Tristrips:
faces.Add(new VertexTriangleStrip(vertices.Select(x => x[setIndex]).ToArray()));
break;
case EColladaPrimitiveType.Polylist:
Polylist polyListPrim = (Polylist)prim;
PolyCounts countsElem = polyListPrim.PolyCountsElement;
int[] counts = countsElem.StringContent.Values;
VertexPolygon[] polys = new VertexPolygon[counts.Length];
for (int vtxIndex = 0, polyIndex = 0; polyIndex < counts.Length; ++polyIndex)
{
int count = counts[polyIndex];
Vertex[] verts = new Vertex[count];
for (int polyVtxIndex = 0; polyVtxIndex < count; ++polyVtxIndex, ++vtxIndex)
{
verts[polyVtxIndex] = vertices[vtxIndex][setIndex];
}
polys[polyIndex] = new VertexPolygon(verts);
}
faces.AddRange(polys);
break;
default:
case EColladaPrimitiveType.Polygons:
WriteLine($"Primitive type '{prim.Type.ToString()}' not supported. Mesh will be empty.");
break;
}
}
}
