public void Commit()
{
foreach (var kv in instances)
{
var surface = kv.Key;
var instance = kv.Value;
instance.SetTransform(surface.Location.Transform.ToArray(),
Embree.MatrixLayout.ColumnMajor);
instance.Enabled = surface.Location.Visible;
}
scene.Commit();
}
public SimpleMesh(String filePath, Boolean smoothNormals)
{
scene = new Embree.Scene(Embree.SceneFlags.Coherent
| Embree.SceneFlags.Incoherent
| Embree.SceneFlags.Robust);
IList <Embree.Vertex> vertexData;
IList <Embree.Triangle> triData;
LoadFromFileIntoScene(filePath, scene, out vertexData, out triData);
scene.Commit();
// convert geometric vertex/triangle data into our own internal triangle format
this.triangles = new Triangle[triData.Count];
for (int t = 0; t < triData.Count; ++t)
{
triangles[t].V0.VertexID = triData[t].V0;
triangles[t].V1.VertexID = triData[t].V1;
triangles[t].V2.VertexID = triData[t].V2;
triangles[t].FaceNormal = Vector.Normalize(Vector.Cross(
(Point)vertexData[triData[t].V1] - (Point)vertexData[triData[t].V0],
(Point)vertexData[triData[t].V2] - (Point)vertexData[triData[t].V0]
));
}
// if we want smooth vertex normals, generate them here
// (note: we could load them from the .obj file if available, but never mind that for now)
this.smoothNormals = smoothNormals;
if (smoothNormals)
{
GenerateVertexNormals(vertexData);
}
}