The Java 3D Frequently Asked Questions list for Monday March 19 2001
This is a posting of topics covered in the Java 3D FAQ. The answers
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If the
I think you might want to check out :
http://www.sigda.org/Eric/java3d/behaviors/index.htm
I'm not sure but the latest release of Java3D might have fixed the problem
you're having.
At 09:33 PM 03/17/2001 -0800, you wrote:
>I have an object in a viewer which I rotate by dragging either up/dow
Fiasco:
I also struggled with the same problem. The following link may be useful to
you:
http://www.et.byu.edu/~ered/ME537/Read_HW_Labs/ch1-537.pdf
"If we postmultiply a transformation representing a frame (relative to base
axes)
by a second transformation (relative to the frame of the first
tr
Java3d supports tri-linear mipmapping, which would smooth things
considerably. But you have to set up your mip-mapping to do this, its not
done automatically:
Magnification filter - the magnification filter function. Used when the
pixel being rendered maps to an area less than or equal to one tex
> The mipmaps work at the texel level. When a texel is going to be rendered
> Mipmapping uses a variety of techniques to determine what color to draw.
Actually according to that demo, it seems its working at the pixel leve. Also
I think this varies from renderer to renderer. (some renderers prob
Thanks Daniel, thats a very informative response.
Dave Yazel
Cosm Development Team
http://www.cosm-game.com/
- Original Message -
From: Daniel Selman <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, March 18, 2001 11:50 AM
Subject: Re: [JAVA3D] Optimization for shared appearanc
Dave,
In there absence I'll have a go...
1. Yes, Java 3D does try to do this sort of optimization. You have probably
seen the RenderMolecule, RenderAtom classes reported in exceptions etc.
Operations to be sent to the native renderer are described using a
RenderMolecule (which has an associated
What a neat test! Yes I think I can explain
it. Mipmapping is not an all or nothing technique. When I first
started working with textures I thought that a mipmap level was picked and
used for the entire shape, but in fact that is not the case. The mipmaps
work at the texel level. When
Hey-
I am working on an example of MIPMapping. I generate
a series of BufferedImages each with Text indicating
the image size (e.g. 256 x 256, 128 x 128 ...1 x 1).
If the viewer is on the size of the box and goes forward
and backward, the MIPMap works as expected and
changes BufferedImages as ex
All,
I recently upgraded to Java 3D 1.2.1 and have been testing some of my Java
3D programs. Most things seem to work (better, even! ;-)) but I am seeing
the following exception in one of my programs that uses HiResCoords and
multiple Locales:
java.lang.NullPointerException
at
javax.medi
Hello Leyland,
Sunday, March 18, 2001, 2:03:18 PM, you wrote:
I had this problem to, so what I've changed some in Sun's files, so
you can try to use it (see attach. It has a package you need)
>> It has come to my attention that the ObjectFile loader class, does not
>> function properly with re
> It has come to my attention that the ObjectFile loader class, does not
> function properly with relative files that use external files (like material
> files).
Correction, it works with relative files, but it does not work with files
with out some type of path. Here is an example of a working l
It has come to my attention that the ObjectFile loader class, does not
function properly with relative files that use external files (like material
files).
If you do this for example with the demo obj file loader program...
java ObjLoader model.obj
if the model.obj file uses model.mtl, then it
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