// temporary solution to be able to see a brush wireframe
static BrushOutline CreateOutline(BrushMesh brushMesh)
{
var brushOutline = new BrushOutline();
brushOutline.Reset();
if (brushMesh == null)
{
return(brushOutline);
}
brushOutline.surfaceOutlines = new Outline[brushMesh.surfaces.Length];
brushOutline.vertices = brushMesh.vertices.ToArray();
var surfaceOutlines = brushOutline.surfaceOutlines;
for (int p = 0; p < brushMesh.polygons.Length; p++)
{
surfaceOutlines[p] = new Outline();
surfaceOutlines[p].Reset();
}
var brushVisibleOuterLines = new List <int>();
var surfaceVisibleOuterLines = new List <int>();
for (int p = 0; p < brushMesh.polygons.Length; p++)
{
var surfaceOutline = surfaceOutlines[p];
surfaceVisibleOuterLines.Clear();
var firstEdge = brushMesh.polygons[p].firstEdge;
var edgeCount = brushMesh.polygons[p].edgeCount;
var lastEdge = firstEdge + edgeCount;
var vertexIndex0 = brushMesh.halfEdges[lastEdge - 1].vertexIndex;
var vertexIndex1 = 0;
for (int h = firstEdge; h < lastEdge; vertexIndex0 = vertexIndex1, h++)
{
vertexIndex1 = brushMesh.halfEdges[h].vertexIndex;
if (vertexIndex0 > vertexIndex1) // avoid duplicate edges
{
brushVisibleOuterLines.Add(vertexIndex0);
brushVisibleOuterLines.Add(vertexIndex1);
}
surfaceVisibleOuterLines.Add(vertexIndex0);
surfaceVisibleOuterLines.Add(vertexIndex1);
}
surfaceOutline.visibleOuterLines = surfaceVisibleOuterLines.ToArray();
}
brushOutline.brushOutline.visibleOuterLines = brushVisibleOuterLines.ToArray();
return(brushOutline);
}