public static void DrawMeshEdges(KrablMesh.MeshEdges mesh, Transform transform, float normalLength = 0.0f, SkinnedMeshRenderer smr = null)
{
int numVerts = mesh.vertCount();
int numEdges = mesh.edgeCount();
Vector3[] pts = new Vector3[numVerts];
Matrix4x4[] boneMatrices = null;
Matrix4x4 mat = new Matrix4x4();
bool useBones = (smr != null) && (mesh.hasBoneWeights);
if (useBones)
{
boneMatrices = BoneMatricesFromBonesAndBindposes(mesh.bindposes, smr.bones);
for (int i = 0; i < numVerts; ++i)
{
Vertex v = mesh.vertices[i];
DeformationMatrixForBoneWeight(v.boneWeight, boneMatrices, ref mat);
pts[i] = mat.MultiplyPoint3x4(v.coords);
}
}
else
{
for (int i = 0; i < numVerts; ++i)
{
Vertex v = mesh.vertices[i];
pts[i] = transform.TransformPoint(v.coords);
}
}
for (int i = 0; i < numEdges; ++i)
{
if (mesh.IsEdgeValid(i))
{
Edge e = mesh.edges[i];
Color col = Color.clear;
if (e.linkedFaces.Count <= 1)
{
col = Color.blue;
}
if (mesh.hasUV1 && mesh.IsEdgeUV1Seam(i))
{
col = Color.magenta;
}
if (e.crease > 0.0f)
{
col = Color.red;
}
if (col.a != 0.0f)
{
Gizmos.color = col;
Gizmos.DrawLine(pts[e.v[0]], pts[e.v[1]]);
}
}
}
if (normalLength > 0.0f)
{
Gizmos.color = Color.white;
int numFaces = mesh.faceCount();
if (useBones == false)
{
for (int i = 0; i < numFaces; ++i)
{
Face f = mesh.faces[i];
if (f.valid)
{
int[] vi = f.v;
for (int j = 0; j < f.cornerCount; ++j)
{
Vector3 n = f.vertexNormal[j];
n = transform.TransformDirection(n);
Vector3 p = pts[vi[j]];
Gizmos.DrawLine(p, p + n * normalLength);
}
}
}
}
else
{
for (int i = 0; i < numFaces; ++i)
{
Face f = mesh.faces[i];
if (f.valid)
{
int[] vi = f.v;
for (int j = 0; j < f.cornerCount; ++j)
{
int vindex = vi[j];
DeformationMatrixForBoneWeight(mesh.vertices[vindex].boneWeight, boneMatrices, ref mat);
Vector3 n = f.vertexNormal[j];
n = mat.MultiplyVector(n);
Vector3 p = pts[vindex];
Gizmos.DrawLine(p, p + n.normalized * normalLength);
}
}
}
}
}
}