Re: [JAVA3D] New Geometry For Next Release?

[David]

I am not sure I would.  I have found the geometry shapes useful for demos, but not really useful for doing anything real. This might just be me, but when I have have found myself needing to build my own objects to harness the full functionality of java3d:   1-The library objects are defined in in -1 to 1 coordinates.  This basically requires a transform to put it where you want it in the world.  For certain applications, it is better to build the object in the size and location you want it in the first place. (This is debatable considering the use of shared groups)   2-They build their objects in a way you might not want to.  For example the cube actually creates 6 different geometry arrays under the shape, rather than one triangle mesh.   3-Texture coordinates.  It is very hard to go into a pre-built object and re-define the texture coordinates properly, provided you don't want their default behavior.  For example if you are building a wall in your world, using the default texture coordinates that come with the cube will not allow you to map the wall texture in such a way which makes sense.  The problem is that the texture coordinate are best specified when the object is built, because it is at that time you have the appropriate higher level understanding of the design of your object.  This information is lost once the object has been broken down to a set of verticies.   4-It is impossible to extend their objects to change the bahavior.  In other words the objects are built one way, without exposing methods which would allow you to override the behavior of its construction.     It might just be me, but I have found the entire utility package to be excellent in getting up and going quickly with Java3d, but find myself trapped by its implementation when trying to use it in the real world.  Like trying to use their normalize routines on a non-planer object, or trying to map the texture coordinates onto anything that has been strippified.   As always, these are just my opinions and doubtfully represent anyone elses views.   Dave Yazel     ----- Original Message ----- From: Crossley, Allistair (A.) To: [EMAIL PROTECTED] Sent: Monday, August 21, 2000 10:05 AM Subject: [JAVA3D] New Geometry For Next Release? Dear All,   Am I the only one who would like to see the geometry utility classes expanded in each new release of Java3D? Not all of us have expertise in generating 3D shapes out of points but can program in Java and Java3D well enough.   I would particularly like to see bezier/spline based geometry and perhaps metaballs or implicit function based surface creating geometry.   All the best   Allistair   ^^^^^^^^^^^^^^^^^^^^^ Allistair D Crossley IT Consultant (Logica) 01277 252088 [EMAIL PROTECTED] ^^^^^^^^^^^^^^^^^^^^^