Re: [away3d] Re: face.normal definition?

[jens lofberg]

I guess I will use 3.5 later but now I just made some small testing using the not so funny project (flash 9) I'm working on. and I didn't see any speed difference between 2.5 and 3.5 so I don't see or read any good point why using it yet. jens Le 16/06/2010 10:36, Michael Iv a écrit : Sure , I gave you from 3.5. Sorry for this question but why would you want to use 2.5? On Wed, Jun 16, 2010 at 11:35 AM, jens lofberg <jenslofb...@gmail.com> wrote: No =( getAngle() dont excists in normal  (away3D 2.5.0) I found _fAngle in geometry.as but this variable is private. What I would like to do is to get al the forces on an item placed on a plane due to gravity and the angle of the ground, so I would need the angle of 'ground' at the point where my item is placed.  (I'm using elevation on a plane to create the ground) But I have another idea how to solve my problem using the Elevationreader: I just check the difference in height on the point where my object is and 1 pixels to the side of it. If I do this in two direction I get my angle =) Actually I don't even have to calculate the angle to make it simple. I just say that the force in x,y is equal to this difference (and gravity is the force in z). But first I have to go back to finishing the work I should have been working on =( jens Le 16/06/2010 10:02, Michael Iv a écrit : 'worked OK? On Wed, Jun 16, 2010 at 10:58 AM, jens lofberg <jenslofb...@gmail.com> wrote: perfect, thanks! jens Le 15/06/2010 20:24, Michael Iv a écrit : face.normal.getAngle() should do the work. On Tue, Jun 15, 2010 at 6:17 PM, savagelook <anthony.lukasav...@gmail.com> wrote: 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 <anthony.lukasav...@gmail.com> 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 <jenslofb...@gmail.com> 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 -- Michael Ivanov ,Programmer Neurotech Solutions Ltd. Flex|Air |3D|Unity| www.neurotechresearch.com http://blog.alladvanced.net http://www.meetup.com/GO3D-Games-Opensource-3D/ Tel:054-4962254 explomas...@gmail.com t...@neurotech.co.il -- Michael Ivanov ,Programmer Neurotech Solutions Ltd. Flex|Air |3D|Unity| www.neurotechresearch.com http://blog.alladvanced.net http://www.meetup.com/GO3D-Games-Opensource-3D/ Tel:054-4962254 explomas...@gmail.com t...@neurotech.co.il -- Michael Ivanov ,Programmer Neurotech Solutions Ltd. Flex|Air |3D|Unity| www.neurotechresearch.com http://blog.alladvanced.net http://www.meetup.com/GO3D-Games-Opensource-3D/ Tel:054-4962254 explomas...@gmail.com t...@neurotech.co.il