Check the showNormals block of the renderTriangle() function in BitmapMaterial. I don't have time to dig in right now, but that's how the away3d code shows a line indicating the direction of the normals on a triangle. This should help you get want you want.
On Jun 15, 11:12 am, savagelook <[email protected]> wrote: > I could be wrong cause I'm not looking at the code, but I would assume > that "face[0].normal" is returning the vector of the normal, or simply > its direction. You might need to calculate the center of the face by > using its 3 vertices, not sure if away3d has this center point built > in. I don't know how to do that calculation off hand, though, sorry. > > On Jun 15, 10:52 am, jens lofberg <[email protected]> wrote: > > > > > Hi > > I would like to use the angle of the face.normal but I don't understand it. > > trace(face[0].normal) only give me one 3d point (x,y,z)? To use the > > angle I need two points? > > > THANKS > > jens
