Hey Fabrice,
Sorry for consecutive posts. However, I wished to know the best
way to get core knowledge of Away3D. How did you start off creating
this engine? What did you study about 3D and how do you have such
detailed knowledge of 3D? I wish to follow you and study the same way
instead of stumbling here and there. I have read through all
flashmagazine tut posts of away3d. I also saw the samples that come
with Away3D. As there are many properties for any model, face, mesh
and it is hard to know what does what. Also it is hard to know what is
needed for what purpose, when to use something and when to not.
May be I am demanding too much, but I am really excited and also need
to know in detail for successful project completion. As a part of my
expressing of gratitude, I am ready to do something for this project
according to my technical capabilities in return (if you find me
useful enough).
Thanks,
Sushant
On May 10, 7:15 pm, Fabrice3D <[email protected]> wrote:
> I'm no expert at collada format ( I never use them), but this looks
> like a coordinate issue.
> you probably set in papervision a var saying its right or left handed
> system.
> or they have in the Erain export corrected the orientation for PV
> before exporting the dae file.
>
> To fix this issue and see the same in away, you need either to rotate
> the model in your app or in Away: z by 90 degrees. And probably
> inverse your x.
> if you do it in Away, you can do it like this:
>
> myobject.rotationZ -= 90;
> myobject.applyRotations(); --> optional
>
> and for the x, if necessary:
> myobject.scaleX = -1;
> myobject.invertFaces(); --> to flip the faces
>
> of course it would be better to do it in your editor.
>
> Fabrice
>
> On May 10, 2009, at 3:42 PM, flashangel wrote:
>
>
>
> > Hi friends,
> > I must first admit that I am NOT knowledgeable enough about
> > internals of 3D engines. I have just read the 2 books of Keith Peters
> > about 3D and some chapters regarding maths underlying the 3D
> > operations.
>
> > I have been following both Papervision3D and Away3D since a year or
> > so. Now I have got a project to work on some interesting 3D model
> > manipulation. I do not know 3d modelling. I had been using swift3d
> > papervision exporter to export DAe and was using papervision. However
> > for larger models I found that Papervision 3D sucks. I was knowing
> > that Away3D had moved way forward and implemented normal mapping and
> > DOT3BitmapMaterial. From my premitive knowledge of 3D, I am thinking
> > that this is what is going to save me by creating low poly models and
> > high quality normal maps. I have also seen the demo of "2 heads" and
> > "teapot" given by Fabrice. However, he has not shared the source code
> > (or I couldn't find it probably).
>
> > I am giving below the stuff where I am stuck.
>
> > The 3d model is of a female model (Masha):
> >http://www.dnyandeep.com//headTest/assets/head.dae
>
> > the model rendered using swift3d (papervision exporter)
> >http://www.dnyandeep.com/headTest/swift/head.zip
>
> > Same DAE as is used by PV3D is being used in below given Away3D test
> >http://www.dnyandeep.com/headTest/AwayNormalMapTest.html
>
> > You can notice that Away3D had incorrectly rendered the same model.
> > However pv3d does correctly. I really want to use Away3d for this
> > project because of its efficiency and especially what I read about
> > occlusion culling that is available in Away3D.
>
> > I am stuck, any pointers where I am going wrong? Also I wish to know
> > perfect guidelines about what I need to do to directly export the
> > model from 3D tools like Max. Can somebody guide me please? As I will
> > need to tell this to the 3D modeller person I am working with to get
> > the exported 3DS/DAE files from him in perfect format suitable to
> > Away3D. Also why the model is getting rendered is PV3D but not doing
> > correctly in Away? I definitely do not know any internals, so any help
> > is appreciated.
>
> > Sushant
